LinearLayout.java revision 4c359b76f9a030f92a302ba74a528faa170bad4e
19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2006 The Android Open Source Project 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * you may not use this file except in compliance with the License. 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * You may obtain a copy of the License at 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See the License for the specific language governing permissions and 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * limitations under the License. 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpackage android.widget; 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19f5c6eff63d19a9f7a970a4f90619edac873c006dGilles Debunneimport com.android.internal.R; 20f5c6eff63d19a9f7a970a4f90619edac873c006dGilles Debunne 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.Context; 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.res.TypedArray; 23fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powellimport android.graphics.Canvas; 24fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powellimport android.graphics.drawable.Drawable; 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.AttributeSet; 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.Gravity; 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.View; 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewDebug; 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewGroup; 308a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganovimport android.view.accessibility.AccessibilityEvent; 318a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganovimport android.view.accessibility.AccessibilityNodeInfo; 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.widget.RemoteViews.RemoteView; 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A Layout that arranges its children in a single column or a single row. The direction of 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the row can be set by calling {@link #setOrientation(int) setOrientation()}. 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * You can also specify gravity, which specifies the alignment of all the child elements by 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * calling {@link #setGravity(int) setGravity()} or specify that specific children 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * grow to fill up any remaining space in the layout by setting the <em>weight</em> member of 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.LinearLayout.LayoutParams LinearLayout.LayoutParams}. 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The default orientation is horizontal. 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 444c359b76f9a030f92a302ba74a528faa170bad4eScott Main * <p>See the <a href="{@docRoot}guide/topics/ui/layout/linear.html">Linear Layout</a> 454c359b76f9a030f92a302ba74a528faa170bad4eScott Main * guide.</p> 4641ec65355bd6ded652769725b276d47c54a0d913Scott Main * 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p> 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Also see {@link LinearLayout.LayoutParams android.widget.LinearLayout.LayoutParams} 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * for layout attributes </p> 509295ada0ec89fa7a666be4a2f1006a4b722adf4fRomain Guy * 519295ada0ec89fa7a666be4a2f1006a4b722adf4fRomain Guy * @attr ref android.R.styleable#LinearLayout_baselineAligned 529295ada0ec89fa7a666be4a2f1006a4b722adf4fRomain Guy * @attr ref android.R.styleable#LinearLayout_baselineAlignedChildIndex 539295ada0ec89fa7a666be4a2f1006a4b722adf4fRomain Guy * @attr ref android.R.styleable#LinearLayout_gravity 549295ada0ec89fa7a666be4a2f1006a4b722adf4fRomain Guy * @attr ref android.R.styleable#LinearLayout_measureWithLargestChild 559295ada0ec89fa7a666be4a2f1006a4b722adf4fRomain Guy * @attr ref android.R.styleable#LinearLayout_orientation 569295ada0ec89fa7a666be4a2f1006a4b722adf4fRomain Guy * @attr ref android.R.styleable#LinearLayout_weightSum 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project@RemoteView 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic class LinearLayout extends ViewGroup { 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int HORIZONTAL = 0; 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int VERTICAL = 1; 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 64fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell * Don't show any dividers. 65fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell */ 66fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell public static final int SHOW_DIVIDER_NONE = 0; 67fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell /** 68fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell * Show a divider at the beginning of the group. 69fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell */ 70fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell public static final int SHOW_DIVIDER_BEGINNING = 1; 71fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell /** 72fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell * Show dividers between each item in the group. 73fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell */ 74fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell public static final int SHOW_DIVIDER_MIDDLE = 2; 75fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell /** 76fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell * Show a divider at the end of the group. 77fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell */ 78fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell public static final int SHOW_DIVIDER_END = 4; 79fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell 80fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell /** 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Whether the children of this layout are baseline aligned. Only applicable 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if {@link #mOrientation} is horizontal. 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 84bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "layout") 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mBaselineAligned = true; 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If this layout is part of another layout that is baseline aligned, 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * use the child at this index as the baseline. 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note: this is orthogonal to {@link #mBaselineAligned}, which is concerned 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * with whether the children of this layout are baseline aligned. 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 94bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "layout") 95c1f9c40c23a756a11394a35f37053f796494b224Karl Rosaen private int mBaselineAlignedChildIndex = -1; 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The additional offset to the child's baseline. 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * We'll calculate the baseline of this layout as we measure vertically; for 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * horizontal linear layouts, the offset of 0 is appropriate. 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 102bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "measurement") 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mBaselineChildTop = 0; 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 105bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "measurement") 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mOrientation; 107bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev 108bce84d2bcaa30b9d937b629111091e9f6286c3ebFabrice Di Meglio @ViewDebug.ExportedProperty(category = "measurement", flagMapping = { 109bce84d2bcaa30b9d937b629111091e9f6286c3ebFabrice Di Meglio @ViewDebug.FlagToString(mask = -1, 110bce84d2bcaa30b9d937b629111091e9f6286c3ebFabrice Di Meglio equals = -1, name = "NONE"), 111bce84d2bcaa30b9d937b629111091e9f6286c3ebFabrice Di Meglio @ViewDebug.FlagToString(mask = Gravity.NO_GRAVITY, 112bce84d2bcaa30b9d937b629111091e9f6286c3ebFabrice Di Meglio equals = Gravity.NO_GRAVITY,name = "NONE"), 113bce84d2bcaa30b9d937b629111091e9f6286c3ebFabrice Di Meglio @ViewDebug.FlagToString(mask = Gravity.TOP, 114bce84d2bcaa30b9d937b629111091e9f6286c3ebFabrice Di Meglio equals = Gravity.TOP, name = "TOP"), 115bce84d2bcaa30b9d937b629111091e9f6286c3ebFabrice Di Meglio @ViewDebug.FlagToString(mask = Gravity.BOTTOM, 116bce84d2bcaa30b9d937b629111091e9f6286c3ebFabrice Di Meglio equals = Gravity.BOTTOM, name = "BOTTOM"), 117bce84d2bcaa30b9d937b629111091e9f6286c3ebFabrice Di Meglio @ViewDebug.FlagToString(mask = Gravity.LEFT, 118bce84d2bcaa30b9d937b629111091e9f6286c3ebFabrice Di Meglio equals = Gravity.LEFT, name = "LEFT"), 119bce84d2bcaa30b9d937b629111091e9f6286c3ebFabrice Di Meglio @ViewDebug.FlagToString(mask = Gravity.RIGHT, 120bce84d2bcaa30b9d937b629111091e9f6286c3ebFabrice Di Meglio equals = Gravity.RIGHT, name = "RIGHT"), 1219e3b002d3f9141d54948a65e0330fdcd09e75a30Fabrice Di Meglio @ViewDebug.FlagToString(mask = Gravity.START, 1229e3b002d3f9141d54948a65e0330fdcd09e75a30Fabrice Di Meglio equals = Gravity.START, name = "START"), 1239e3b002d3f9141d54948a65e0330fdcd09e75a30Fabrice Di Meglio @ViewDebug.FlagToString(mask = Gravity.END, 1249e3b002d3f9141d54948a65e0330fdcd09e75a30Fabrice Di Meglio equals = Gravity.END, name = "END"), 125bce84d2bcaa30b9d937b629111091e9f6286c3ebFabrice Di Meglio @ViewDebug.FlagToString(mask = Gravity.CENTER_VERTICAL, 126bce84d2bcaa30b9d937b629111091e9f6286c3ebFabrice Di Meglio equals = Gravity.CENTER_VERTICAL, name = "CENTER_VERTICAL"), 127bce84d2bcaa30b9d937b629111091e9f6286c3ebFabrice Di Meglio @ViewDebug.FlagToString(mask = Gravity.FILL_VERTICAL, 128bce84d2bcaa30b9d937b629111091e9f6286c3ebFabrice Di Meglio equals = Gravity.FILL_VERTICAL, name = "FILL_VERTICAL"), 129bce84d2bcaa30b9d937b629111091e9f6286c3ebFabrice Di Meglio @ViewDebug.FlagToString(mask = Gravity.CENTER_HORIZONTAL, 130bce84d2bcaa30b9d937b629111091e9f6286c3ebFabrice Di Meglio equals = Gravity.CENTER_HORIZONTAL, name = "CENTER_HORIZONTAL"), 131bce84d2bcaa30b9d937b629111091e9f6286c3ebFabrice Di Meglio @ViewDebug.FlagToString(mask = Gravity.FILL_HORIZONTAL, 132bce84d2bcaa30b9d937b629111091e9f6286c3ebFabrice Di Meglio equals = Gravity.FILL_HORIZONTAL, name = "FILL_HORIZONTAL"), 133bce84d2bcaa30b9d937b629111091e9f6286c3ebFabrice Di Meglio @ViewDebug.FlagToString(mask = Gravity.CENTER, 134bce84d2bcaa30b9d937b629111091e9f6286c3ebFabrice Di Meglio equals = Gravity.CENTER, name = "CENTER"), 135bce84d2bcaa30b9d937b629111091e9f6286c3ebFabrice Di Meglio @ViewDebug.FlagToString(mask = Gravity.FILL, 136bce84d2bcaa30b9d937b629111091e9f6286c3ebFabrice Di Meglio equals = Gravity.FILL, name = "FILL"), 137c46f7ffa9079f3ae8a5204e7519ed7a1250116d0Fabrice Di Meglio @ViewDebug.FlagToString(mask = Gravity.RELATIVE_LAYOUT_DIRECTION, 138c46f7ffa9079f3ae8a5204e7519ed7a1250116d0Fabrice Di Meglio equals = Gravity.RELATIVE_LAYOUT_DIRECTION, name = "RELATIVE") 139d68478467e3f837511196c80891d7245d0e163dfDianne Hackborn }) 1409e3b002d3f9141d54948a65e0330fdcd09e75a30Fabrice Di Meglio private int mGravity = Gravity.START | Gravity.TOP; 141bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev 142bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "measurement") 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mTotalLength; 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 145bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "layout") 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private float mWeightSum; 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 148bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "layout") 1495b1b2417106f161e4bc66296888f4685f213eebdRomain Guy private boolean mUseLargestChild; 1505b1b2417106f161e4bc66296888f4685f213eebdRomain Guy 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int[] mMaxAscent; 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int[] mMaxDescent; 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int VERTICAL_GRAVITY_COUNT = 4; 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int INDEX_CENTER_VERTICAL = 0; 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int INDEX_TOP = 1; 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int INDEX_BOTTOM = 2; 1595b1b2417106f161e4bc66296888f4685f213eebdRomain Guy private static final int INDEX_FILL = 3; 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 161fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell private Drawable mDivider; 162fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell private int mDividerWidth; 163fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell private int mDividerHeight; 164fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell private int mShowDividers; 165fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell private int mDividerPadding; 166fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LinearLayout(Context context) { 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context); 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LinearLayout(Context context, AttributeSet attrs) { 1729295ada0ec89fa7a666be4a2f1006a4b722adf4fRomain Guy this(context, attrs, 0); 1739295ada0ec89fa7a666be4a2f1006a4b722adf4fRomain Guy } 1749295ada0ec89fa7a666be4a2f1006a4b722adf4fRomain Guy 1759295ada0ec89fa7a666be4a2f1006a4b722adf4fRomain Guy public LinearLayout(Context context, AttributeSet attrs, int defStyle) { 1769295ada0ec89fa7a666be4a2f1006a4b722adf4fRomain Guy super(context, attrs, defStyle); 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1783f7f7ac30af6ea572aca44df91363cff7fcd9fefAdam Powell TypedArray a = context.obtainStyledAttributes(attrs, 1793f7f7ac30af6ea572aca44df91363cff7fcd9fefAdam Powell com.android.internal.R.styleable.LinearLayout, defStyle, 0); 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = a.getInt(com.android.internal.R.styleable.LinearLayout_orientation, -1); 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index >= 0) { 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setOrientation(index); 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = a.getInt(com.android.internal.R.styleable.LinearLayout_gravity, -1); 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index >= 0) { 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setGravity(index); 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean baselineAligned = a.getBoolean(R.styleable.LinearLayout_baselineAligned, true); 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!baselineAligned) { 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setBaselineAligned(baselineAligned); 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mWeightSum = a.getFloat(R.styleable.LinearLayout_weightSum, -1.0f); 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mBaselineAlignedChildIndex = 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.getInt(com.android.internal.R.styleable.LinearLayout_baselineAlignedChildIndex, -1); 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2019295ada0ec89fa7a666be4a2f1006a4b722adf4fRomain Guy mUseLargestChild = a.getBoolean(R.styleable.LinearLayout_measureWithLargestChild, false); 2025b1b2417106f161e4bc66296888f4685f213eebdRomain Guy 203fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell setDividerDrawable(a.getDrawable(R.styleable.LinearLayout_divider)); 204fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell mShowDividers = a.getInt(R.styleable.LinearLayout_showDividers, SHOW_DIVIDER_NONE); 205fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell mDividerPadding = a.getDimensionPixelSize(R.styleable.LinearLayout_dividerPadding, 0); 206fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell 2079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 2089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 211fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell * Set how dividers should be shown between items in this layout 212fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell * 213fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell * @param showDividers One or more of {@link #SHOW_DIVIDER_BEGINNING}, 214fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell * {@link #SHOW_DIVIDER_MIDDLE}, or {@link #SHOW_DIVIDER_END}, 215fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell * or {@link #SHOW_DIVIDER_NONE} to show no dividers. 216fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell */ 217fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell public void setShowDividers(int showDividers) { 218fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell if (showDividers != mShowDividers) { 219fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell requestLayout(); 220fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell } 221fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell mShowDividers = showDividers; 222fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell } 223fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell 224e0a799a2ac1ca78e30fbac9e4e12a063425c08d3Patrick Dubroy @Override 225e0a799a2ac1ca78e30fbac9e4e12a063425c08d3Patrick Dubroy public boolean shouldDelayChildPressedState() { 226e0a799a2ac1ca78e30fbac9e4e12a063425c08d3Patrick Dubroy return false; 227e0a799a2ac1ca78e30fbac9e4e12a063425c08d3Patrick Dubroy } 228e0a799a2ac1ca78e30fbac9e4e12a063425c08d3Patrick Dubroy 229fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell /** 230fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell * @return A flag set indicating how dividers should be shown around items. 231fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell * @see #setShowDividers(int) 232fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell */ 233fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell public int getShowDividers() { 234fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell return mShowDividers; 235fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell } 236fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell 237fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell /** 2381018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne * @return the divider Drawable that will divide each item. 2391018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne * 2401018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne * @see #setDividerDrawable(Drawable) 2411018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne * 2421018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne * @attr ref android.R.styleable#LinearLayout_divider 2431018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne */ 2441018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne public Drawable getDividerDrawable() { 2451018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne return mDivider; 2461018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne } 2471018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne 2481018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne /** 249fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell * Set a drawable to be used as a divider between items. 2501018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne * 251fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell * @param divider Drawable that will divide each item. 2521018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne * 253fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell * @see #setShowDividers(int) 2541018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne * 2551018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne * @attr ref android.R.styleable#LinearLayout_divider 256fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell */ 257fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell public void setDividerDrawable(Drawable divider) { 258fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell if (divider == mDivider) { 259fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell return; 260fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell } 261fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell mDivider = divider; 262fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell if (divider != null) { 263fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell mDividerWidth = divider.getIntrinsicWidth(); 264fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell mDividerHeight = divider.getIntrinsicHeight(); 265fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell } else { 266fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell mDividerWidth = 0; 267fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell mDividerHeight = 0; 268fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell } 269fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell setWillNotDraw(divider == null); 270fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell requestLayout(); 271fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell } 272fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell 273696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell /** 274696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell * Set padding displayed on both ends of dividers. 275696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell * 276696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell * @param padding Padding value in pixels that will be applied to each end 277696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell * 278696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell * @see #setShowDividers(int) 279696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell * @see #setDividerDrawable(Drawable) 280696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell * @see #getDividerPadding() 281696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell */ 282696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell public void setDividerPadding(int padding) { 283696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell mDividerPadding = padding; 284696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell } 285696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell 286696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell /** 287696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell * Get the padding size used to inset dividers in pixels 288696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell * 289696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell * @see #setShowDividers(int) 290696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell * @see #setDividerDrawable(Drawable) 291696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell * @see #setDividerPadding(int) 292696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell */ 293696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell public int getDividerPadding() { 294696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell return mDividerPadding; 295696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell } 296696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell 297640a66eac612b850b5dabd3b93bd94f83ed2d567Adam Powell /** 298640a66eac612b850b5dabd3b93bd94f83ed2d567Adam Powell * Get the width of the current divider drawable. 299640a66eac612b850b5dabd3b93bd94f83ed2d567Adam Powell * 300640a66eac612b850b5dabd3b93bd94f83ed2d567Adam Powell * @hide Used internally by framework. 301640a66eac612b850b5dabd3b93bd94f83ed2d567Adam Powell */ 302640a66eac612b850b5dabd3b93bd94f83ed2d567Adam Powell public int getDividerWidth() { 303640a66eac612b850b5dabd3b93bd94f83ed2d567Adam Powell return mDividerWidth; 304640a66eac612b850b5dabd3b93bd94f83ed2d567Adam Powell } 305640a66eac612b850b5dabd3b93bd94f83ed2d567Adam Powell 306fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell @Override 307fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell protected void onDraw(Canvas canvas) { 308fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell if (mDivider == null) { 309fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell return; 310fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell } 311fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell 312fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell if (mOrientation == VERTICAL) { 313fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell drawDividersVertical(canvas); 314fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell } else { 315fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell drawDividersHorizontal(canvas); 316fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell } 317fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell } 318fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell 319fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell void drawDividersVertical(Canvas canvas) { 320fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell final int count = getVirtualChildCount(); 321fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell for (int i = 0; i < count; i++) { 322fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell final View child = getVirtualChildAt(i); 323fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell 32435aecd5884a5ccfe380903e39f30f468315e8f92Adam Powell if (child != null && child.getVisibility() != GONE) { 325696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell if (hasDividerBeforeChildAt(i)) { 32635aecd5884a5ccfe380903e39f30f468315e8f92Adam Powell final LayoutParams lp = (LayoutParams) child.getLayoutParams(); 32720761fcdcd513a808e855708fe2e676e409beb36Vladimir Baryshnikov final int top = child.getTop() - lp.topMargin - mDividerHeight; 328fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell drawHorizontalDivider(canvas, top); 329fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell } 330fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell } 331fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell } 332fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell 333696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell if (hasDividerBeforeChildAt(count)) { 33435aecd5884a5ccfe380903e39f30f468315e8f92Adam Powell final View child = getVirtualChildAt(count - 1); 33535aecd5884a5ccfe380903e39f30f468315e8f92Adam Powell int bottom = 0; 33635aecd5884a5ccfe380903e39f30f468315e8f92Adam Powell if (child == null) { 33735aecd5884a5ccfe380903e39f30f468315e8f92Adam Powell bottom = getHeight() - getPaddingBottom() - mDividerHeight; 33835aecd5884a5ccfe380903e39f30f468315e8f92Adam Powell } else { 33935aecd5884a5ccfe380903e39f30f468315e8f92Adam Powell final LayoutParams lp = (LayoutParams) child.getLayoutParams(); 34035aecd5884a5ccfe380903e39f30f468315e8f92Adam Powell bottom = child.getBottom() + lp.bottomMargin; 34135aecd5884a5ccfe380903e39f30f468315e8f92Adam Powell } 34235aecd5884a5ccfe380903e39f30f468315e8f92Adam Powell drawHorizontalDivider(canvas, bottom); 343fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell } 344fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell } 345fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell 346fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell void drawDividersHorizontal(Canvas canvas) { 347fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell final int count = getVirtualChildCount(); 348fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell for (int i = 0; i < count; i++) { 349fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell final View child = getVirtualChildAt(i); 350fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell 35135aecd5884a5ccfe380903e39f30f468315e8f92Adam Powell if (child != null && child.getVisibility() != GONE) { 352696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell if (hasDividerBeforeChildAt(i)) { 35335aecd5884a5ccfe380903e39f30f468315e8f92Adam Powell final LayoutParams lp = (LayoutParams) child.getLayoutParams(); 35420761fcdcd513a808e855708fe2e676e409beb36Vladimir Baryshnikov final int left = child.getLeft() - lp.leftMargin - mDividerWidth; 355fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell drawVerticalDivider(canvas, left); 356fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell } 357fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell } 358fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell } 359fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell 360696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell if (hasDividerBeforeChildAt(count)) { 36135aecd5884a5ccfe380903e39f30f468315e8f92Adam Powell final View child = getVirtualChildAt(count - 1); 36235aecd5884a5ccfe380903e39f30f468315e8f92Adam Powell int right = 0; 36335aecd5884a5ccfe380903e39f30f468315e8f92Adam Powell if (child == null) { 36435aecd5884a5ccfe380903e39f30f468315e8f92Adam Powell right = getWidth() - getPaddingRight() - mDividerWidth; 36535aecd5884a5ccfe380903e39f30f468315e8f92Adam Powell } else { 36635aecd5884a5ccfe380903e39f30f468315e8f92Adam Powell final LayoutParams lp = (LayoutParams) child.getLayoutParams(); 36735aecd5884a5ccfe380903e39f30f468315e8f92Adam Powell right = child.getRight() + lp.rightMargin; 36835aecd5884a5ccfe380903e39f30f468315e8f92Adam Powell } 36935aecd5884a5ccfe380903e39f30f468315e8f92Adam Powell drawVerticalDivider(canvas, right); 370fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell } 371fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell } 372fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell 373fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell void drawHorizontalDivider(Canvas canvas, int top) { 374fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell mDivider.setBounds(getPaddingLeft() + mDividerPadding, top, 375fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell getWidth() - getPaddingRight() - mDividerPadding, top + mDividerHeight); 376fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell mDivider.draw(canvas); 377fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell } 378fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell 379fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell void drawVerticalDivider(Canvas canvas, int left) { 380fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell mDivider.setBounds(left, getPaddingTop() + mDividerPadding, 381fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell left + mDividerWidth, getHeight() - getPaddingBottom() - mDividerPadding); 382fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell mDivider.draw(canvas); 383fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell } 384fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell 385fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell /** 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>Indicates whether widgets contained within this layout are aligned 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on their baseline or not.</p> 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true when widgets are baseline-aligned, false otherwise 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isBaselineAligned() { 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mBaselineAligned; 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>Defines whether widgets contained in this layout are 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * baseline-aligned or not.</p> 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param baselineAligned true to align widgets on their baseline, 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * false otherwise 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#LinearLayout_baselineAligned 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @android.view.RemotableViewMethod 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setBaselineAligned(boolean baselineAligned) { 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mBaselineAligned = baselineAligned; 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4099295ada0ec89fa7a666be4a2f1006a4b722adf4fRomain Guy /** 4109295ada0ec89fa7a666be4a2f1006a4b722adf4fRomain Guy * When true, all children with a weight will be considered having 4119295ada0ec89fa7a666be4a2f1006a4b722adf4fRomain Guy * the minimum size of the largest child. If false, all children are 4129295ada0ec89fa7a666be4a2f1006a4b722adf4fRomain Guy * measured normally. 4139295ada0ec89fa7a666be4a2f1006a4b722adf4fRomain Guy * 4149295ada0ec89fa7a666be4a2f1006a4b722adf4fRomain Guy * @return True to measure children with a weight using the minimum 4159295ada0ec89fa7a666be4a2f1006a4b722adf4fRomain Guy * size of the largest child, false otherwise. 4161018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne * 4171018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne * @attr ref android.R.styleable#LinearLayout_measureWithLargestChild 4189295ada0ec89fa7a666be4a2f1006a4b722adf4fRomain Guy */ 4199295ada0ec89fa7a666be4a2f1006a4b722adf4fRomain Guy public boolean isMeasureWithLargestChildEnabled() { 4209295ada0ec89fa7a666be4a2f1006a4b722adf4fRomain Guy return mUseLargestChild; 4219295ada0ec89fa7a666be4a2f1006a4b722adf4fRomain Guy } 4229295ada0ec89fa7a666be4a2f1006a4b722adf4fRomain Guy 4239295ada0ec89fa7a666be4a2f1006a4b722adf4fRomain Guy /** 4249295ada0ec89fa7a666be4a2f1006a4b722adf4fRomain Guy * When set to true, all children with a weight will be considered having 4259295ada0ec89fa7a666be4a2f1006a4b722adf4fRomain Guy * the minimum size of the largest child. If false, all children are 4269295ada0ec89fa7a666be4a2f1006a4b722adf4fRomain Guy * measured normally. 4279295ada0ec89fa7a666be4a2f1006a4b722adf4fRomain Guy * 4289295ada0ec89fa7a666be4a2f1006a4b722adf4fRomain Guy * Disabled by default. 4299295ada0ec89fa7a666be4a2f1006a4b722adf4fRomain Guy * 4309295ada0ec89fa7a666be4a2f1006a4b722adf4fRomain Guy * @param enabled True to measure children with a weight using the 4319295ada0ec89fa7a666be4a2f1006a4b722adf4fRomain Guy * minimum size of the largest child, false otherwise. 4321018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne * 4331018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne * @attr ref android.R.styleable#LinearLayout_measureWithLargestChild 4349295ada0ec89fa7a666be4a2f1006a4b722adf4fRomain Guy */ 4359295ada0ec89fa7a666be4a2f1006a4b722adf4fRomain Guy @android.view.RemotableViewMethod 4369295ada0ec89fa7a666be4a2f1006a4b722adf4fRomain Guy public void setMeasureWithLargestChildEnabled(boolean enabled) { 4379295ada0ec89fa7a666be4a2f1006a4b722adf4fRomain Guy mUseLargestChild = enabled; 4389295ada0ec89fa7a666be4a2f1006a4b722adf4fRomain Guy } 4399295ada0ec89fa7a666be4a2f1006a4b722adf4fRomain Guy 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getBaseline() { 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mBaselineAlignedChildIndex < 0) { 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.getBaseline(); 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() <= mBaselineAlignedChildIndex) { 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("mBaselineAlignedChildIndex of LinearLayout " 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "set to an index that is out of bounds."); 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(mBaselineAlignedChildIndex); 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childBaseline = child.getBaseline(); 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childBaseline == -1) { 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mBaselineAlignedChildIndex == 0) { 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // this is just the default case, safe to return -1 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return -1; 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the user picked an index that points to something that doesn't 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // know how to calculate its baseline. 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("mBaselineAlignedChildIndex of LinearLayout " 4629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "points to a View that doesn't know how to get its baseline."); 4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: This should try to take into account the virtual offsets 4669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (See getNextLocationOffset and getLocationOffset) 4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We should add to childTop: 4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // sum([getNextLocationOffset(getChildAt(i)) / i < mBaselineAlignedChildIndex]) 4699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and also add: 4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // getLocationOffset(child) 4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childTop = mBaselineChildTop; 4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOrientation == VERTICAL) { 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int majorGravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (majorGravity != Gravity.TOP) { 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (majorGravity) { 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case Gravity.BOTTOM: 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childTop = mBottom - mTop - mPaddingBottom - mTotalLength; 4799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case Gravity.CENTER_VERTICAL: 4829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childTop += ((mBottom - mTop - mPaddingTop - mPaddingBottom) - 4839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTotalLength) / 2; 4849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 4859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LinearLayout.LayoutParams lp = (LinearLayout.LayoutParams) child.getLayoutParams(); 4909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return childTop + lp.topMargin + childBaseline; 4919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The index of the child that will be used if this layout is 4959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * part of a larger layout that is baseline aligned, or -1 if none has 4969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * been set. 4979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getBaselineAlignedChildIndex() { 4999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mBaselineAlignedChildIndex; 5009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param i The index of the child that will be used if this layout is 5049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * part of a larger layout that is baseline aligned. 5059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#LinearLayout_baselineAlignedChildIndex 5079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @android.view.RemotableViewMethod 5099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setBaselineAlignedChildIndex(int i) { 5109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((i < 0) || (i >= getChildCount())) { 5119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("base aligned child index out " 5129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "of range (0, " + getChildCount() + ")"); 5139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mBaselineAlignedChildIndex = i; 5159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>Returns the view at the specified index. This method can be overriden 5199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to take into account virtual children. Refer to 5209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.TableLayout} and {@link android.widget.TableRow} 5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * for an example.</p> 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param index the child's index 5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the child at the specified index 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getVirtualChildAt(int index) { 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getChildAt(index); 5289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>Returns the virtual number of children. This number might be different 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * than the actual number of children if the layout can hold virtual 5339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * children. Refer to 5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.TableLayout} and {@link android.widget.TableRow} 5359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * for an example.</p> 5369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the virtual number of children 5389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getVirtualChildCount() { 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getChildCount(); 5419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the desired weights sum. 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A number greater than 0.0f if the weight sum is defined, or 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * a number lower than or equals to 0.0f if not weight sum is 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to be used. 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public float getWeightSum() { 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mWeightSum; 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines the desired weights sum. If unspecified the weights sum is computed 5569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at layout time by adding the layout_weight of each child. 5579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This can be used for instance to give a single child 50% of the total 5599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * available space by giving it a layout_weight of 0.5 and setting the 5609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * weightSum to 1.0. 5619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param weightSum a number greater than 0.0f, or a number lower than or equals 5639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to 0.0f if the weight sum should be computed from the children's 5649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout_weight 5659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @android.view.RemotableViewMethod 5679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setWeightSum(float weightSum) { 5689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mWeightSum = Math.max(0.0f, weightSum); 5699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 5729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 5739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOrientation == VERTICAL) { 5749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project measureVertical(widthMeasureSpec, heightMeasureSpec); 5759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 5769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project measureHorizontal(widthMeasureSpec, heightMeasureSpec); 5779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 581696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell * Determines where to position dividers between children. 582696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell * 583696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell * @param childIndex Index of child to check for preceding divider 584696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell * @return true if there should be a divider before the child at childIndex 585696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell * @hide Pending API consideration. Currently only used internally by the system. 586696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell */ 587696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell protected boolean hasDividerBeforeChildAt(int childIndex) { 588696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell if (childIndex == 0) { 589696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell return (mShowDividers & SHOW_DIVIDER_BEGINNING) != 0; 590696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell } else if (childIndex == getChildCount()) { 591696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell return (mShowDividers & SHOW_DIVIDER_END) != 0; 592bf68f833fe835ce393264ecb2fdf3a7d8c38cfdeAdam Powell } else if ((mShowDividers & SHOW_DIVIDER_MIDDLE) != 0) { 593bf68f833fe835ce393264ecb2fdf3a7d8c38cfdeAdam Powell boolean hasVisibleViewBefore = false; 594bf68f833fe835ce393264ecb2fdf3a7d8c38cfdeAdam Powell for (int i = childIndex - 1; i >= 0; i--) { 595bf68f833fe835ce393264ecb2fdf3a7d8c38cfdeAdam Powell if (getChildAt(i).getVisibility() != GONE) { 596bf68f833fe835ce393264ecb2fdf3a7d8c38cfdeAdam Powell hasVisibleViewBefore = true; 597bf68f833fe835ce393264ecb2fdf3a7d8c38cfdeAdam Powell break; 598bf68f833fe835ce393264ecb2fdf3a7d8c38cfdeAdam Powell } 599bf68f833fe835ce393264ecb2fdf3a7d8c38cfdeAdam Powell } 600bf68f833fe835ce393264ecb2fdf3a7d8c38cfdeAdam Powell return hasVisibleViewBefore; 601696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell } 602bf68f833fe835ce393264ecb2fdf3a7d8c38cfdeAdam Powell return false; 603696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell } 604696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell 605696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell /** 6069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Measures the children when the orientation of this LinearLayout is set 6079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to {@link #VERTICAL}. 6089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param widthMeasureSpec Horizontal space requirements as imposed by the parent. 6109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param heightMeasureSpec Vertical space requirements as imposed by the parent. 6119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getOrientation() 6139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setOrientation(int) 6149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #onMeasure(int, int) 6159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void measureVertical(int widthMeasureSpec, int heightMeasureSpec) { 6179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTotalLength = 0; 6189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int maxWidth = 0; 619189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn int childState = 0; 6209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int alternativeMaxWidth = 0; 6219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int weightedMaxWidth = 0; 6229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean allFillParent = true; 6239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float totalWeight = 0; 6249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getVirtualChildCount(); 6269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int widthMode = MeasureSpec.getMode(widthMeasureSpec); 6289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int heightMode = MeasureSpec.getMode(heightMeasureSpec); 6299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean matchWidth = false; 6319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int baselineChildIndex = mBaselineAlignedChildIndex; 6335b1b2417106f161e4bc66296888f4685f213eebdRomain Guy final boolean useLargestChild = mUseLargestChild; 6345b1b2417106f161e4bc66296888f4685f213eebdRomain Guy 6355b1b2417106f161e4bc66296888f4685f213eebdRomain Guy int largestChildHeight = Integer.MIN_VALUE; 6369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See how tall everyone is. Also remember max width. 6389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; ++i) { 6399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getVirtualChildAt(i); 6409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child == null) { 6429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTotalLength += measureNullChild(i); 6439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 6449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() == View.GONE) { 6479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project i += getChildrenSkipCount(child, i); 6489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 6499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 651696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell if (hasDividerBeforeChildAt(i)) { 652fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell mTotalLength += mDividerHeight; 653fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell } 654fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell 6559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LinearLayout.LayoutParams lp = (LinearLayout.LayoutParams) child.getLayoutParams(); 6569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project totalWeight += lp.weight; 6589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (heightMode == MeasureSpec.EXACTLY && lp.height == 0 && lp.weight > 0) { 6609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Optimization: don't bother measuring children who are going to use 6619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // leftover space. These views will get measured again down below if 6629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // there is any leftover space. 663053b48051abab0abd85995a23fcbc172e8c4c57fRomain Guy final int totalLength = mTotalLength; 664053b48051abab0abd85995a23fcbc172e8c4c57fRomain Guy mTotalLength = Math.max(totalLength, totalLength + lp.topMargin + lp.bottomMargin); 6659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 6665b1b2417106f161e4bc66296888f4685f213eebdRomain Guy int oldHeight = Integer.MIN_VALUE; 6679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6685b1b2417106f161e4bc66296888f4685f213eebdRomain Guy if (lp.height == 0 && lp.weight > 0) { 669f5c6eff63d19a9f7a970a4f90619edac873c006dGilles Debunne // heightMode is either UNSPECIFIED or AT_MOST, and this 670f5c6eff63d19a9f7a970a4f90619edac873c006dGilles Debunne // child wanted to stretch to fill available space. 671f5c6eff63d19a9f7a970a4f90619edac873c006dGilles Debunne // Translate that to WRAP_CONTENT so that it does not end up 672f5c6eff63d19a9f7a970a4f90619edac873c006dGilles Debunne // with a height of 0 673f5c6eff63d19a9f7a970a4f90619edac873c006dGilles Debunne oldHeight = 0; 674f5c6eff63d19a9f7a970a4f90619edac873c006dGilles Debunne lp.height = LayoutParams.WRAP_CONTENT; 6755b1b2417106f161e4bc66296888f4685f213eebdRomain Guy } 6769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 677f5c6eff63d19a9f7a970a4f90619edac873c006dGilles Debunne // Determine how big this child would like to be. If this or 6785b1b2417106f161e4bc66296888f4685f213eebdRomain Guy // previous children have given a weight, then we allow it to 6795b1b2417106f161e4bc66296888f4685f213eebdRomain Guy // use all available space (and we will shrink things later 6805b1b2417106f161e4bc66296888f4685f213eebdRomain Guy // if needed). 6815b1b2417106f161e4bc66296888f4685f213eebdRomain Guy measureChildBeforeLayout( 6829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child, i, widthMeasureSpec, 0, heightMeasureSpec, 6839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project totalWeight == 0 ? mTotalLength : 0); 6849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6855b1b2417106f161e4bc66296888f4685f213eebdRomain Guy if (oldHeight != Integer.MIN_VALUE) { 6869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project lp.height = oldHeight; 6875b1b2417106f161e4bc66296888f4685f213eebdRomain Guy } 6889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6895b1b2417106f161e4bc66296888f4685f213eebdRomain Guy final int childHeight = child.getMeasuredHeight(); 690053b48051abab0abd85995a23fcbc172e8c4c57fRomain Guy final int totalLength = mTotalLength; 691053b48051abab0abd85995a23fcbc172e8c4c57fRomain Guy mTotalLength = Math.max(totalLength, totalLength + childHeight + lp.topMargin + 692053b48051abab0abd85995a23fcbc172e8c4c57fRomain Guy lp.bottomMargin + getNextLocationOffset(child)); 6935b1b2417106f161e4bc66296888f4685f213eebdRomain Guy 6945b1b2417106f161e4bc66296888f4685f213eebdRomain Guy if (useLargestChild) { 6955b1b2417106f161e4bc66296888f4685f213eebdRomain Guy largestChildHeight = Math.max(childHeight, largestChildHeight); 6965b1b2417106f161e4bc66296888f4685f213eebdRomain Guy } 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If applicable, compute the additional offset to the child's baseline 7019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * we'll need later when asked {@link #getBaseline}. 7029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((baselineChildIndex >= 0) && (baselineChildIndex == i + 1)) { 7049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mBaselineChildTop = mTotalLength; 7059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if we are trying to use a child index for our baseline, the above 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // book keeping only works if there are no children above it with 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // weight. fail fast to aid the developer. 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i < baselineChildIndex && lp.weight > 0) { 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("A child of LinearLayout with index " 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "less than mBaselineAlignedChildIndex has weight > 0, which " 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "won't work. Either remove the weight, or don't set " 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "mBaselineAlignedChildIndex."); 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean matchWidthLocally = false; 718980a938c1c9a6a5791a8240e5a1e6638ab28dc77Romain Guy if (widthMode != MeasureSpec.EXACTLY && lp.width == LayoutParams.MATCH_PARENT) { 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The width of the linear layout will scale, and at least one 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // child said it wanted to match our width. Set a flag 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // indicating that we need to remeasure at least that view when 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we know our width. 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project matchWidth = true; 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project matchWidthLocally = true; 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int margin = lp.leftMargin + lp.rightMargin; 7289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int measuredWidth = child.getMeasuredWidth() + margin; 7299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project maxWidth = Math.max(maxWidth, measuredWidth); 730189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn childState = combineMeasuredStates(childState, child.getMeasuredState()); 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 732980a938c1c9a6a5791a8240e5a1e6638ab28dc77Romain Guy allFillParent = allFillParent && lp.width == LayoutParams.MATCH_PARENT; 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp.weight > 0) { 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 7359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Widths of weighted Views are bogus if we end up 7369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * remeasuring, so keep them separate. 7379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project weightedMaxWidth = Math.max(weightedMaxWidth, 7399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project matchWidthLocally ? margin : measuredWidth); 7409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 7419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project alternativeMaxWidth = Math.max(alternativeMaxWidth, 7429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project matchWidthLocally ? margin : measuredWidth); 7439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project i += getChildrenSkipCount(child, i); 7469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7475b1b2417106f161e4bc66296888f4685f213eebdRomain Guy 748696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell if (mTotalLength > 0 && hasDividerBeforeChildAt(count)) { 749fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell mTotalLength += mDividerHeight; 750fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell } 751fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell 752f8ac6b7394cfd37f01471bb35475ff2930eee140Adam Powell if (useLargestChild && 753f8ac6b7394cfd37f01471bb35475ff2930eee140Adam Powell (heightMode == MeasureSpec.AT_MOST || heightMode == MeasureSpec.UNSPECIFIED)) { 7545b1b2417106f161e4bc66296888f4685f213eebdRomain Guy mTotalLength = 0; 7555b1b2417106f161e4bc66296888f4685f213eebdRomain Guy 7565b1b2417106f161e4bc66296888f4685f213eebdRomain Guy for (int i = 0; i < count; ++i) { 7575b1b2417106f161e4bc66296888f4685f213eebdRomain Guy final View child = getVirtualChildAt(i); 7585b1b2417106f161e4bc66296888f4685f213eebdRomain Guy 7595b1b2417106f161e4bc66296888f4685f213eebdRomain Guy if (child == null) { 7605b1b2417106f161e4bc66296888f4685f213eebdRomain Guy mTotalLength += measureNullChild(i); 7615b1b2417106f161e4bc66296888f4685f213eebdRomain Guy continue; 7625b1b2417106f161e4bc66296888f4685f213eebdRomain Guy } 7635b1b2417106f161e4bc66296888f4685f213eebdRomain Guy 7645b1b2417106f161e4bc66296888f4685f213eebdRomain Guy if (child.getVisibility() == GONE) { 7655b1b2417106f161e4bc66296888f4685f213eebdRomain Guy i += getChildrenSkipCount(child, i); 7665b1b2417106f161e4bc66296888f4685f213eebdRomain Guy continue; 7675b1b2417106f161e4bc66296888f4685f213eebdRomain Guy } 7685b1b2417106f161e4bc66296888f4685f213eebdRomain Guy 7695b1b2417106f161e4bc66296888f4685f213eebdRomain Guy final LinearLayout.LayoutParams lp = (LinearLayout.LayoutParams) 7705b1b2417106f161e4bc66296888f4685f213eebdRomain Guy child.getLayoutParams(); 771053b48051abab0abd85995a23fcbc172e8c4c57fRomain Guy // Account for negative margins 772053b48051abab0abd85995a23fcbc172e8c4c57fRomain Guy final int totalLength = mTotalLength; 773053b48051abab0abd85995a23fcbc172e8c4c57fRomain Guy mTotalLength = Math.max(totalLength, totalLength + largestChildHeight + 774053b48051abab0abd85995a23fcbc172e8c4c57fRomain Guy lp.topMargin + lp.bottomMargin + getNextLocationOffset(child)); 7755b1b2417106f161e4bc66296888f4685f213eebdRomain Guy } 7765b1b2417106f161e4bc66296888f4685f213eebdRomain Guy } 7775b1b2417106f161e4bc66296888f4685f213eebdRomain Guy 7789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Add in our padding 7799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTotalLength += mPaddingTop + mPaddingBottom; 7809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int heightSize = mTotalLength; 7829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check against our minimum height 7849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project heightSize = Math.max(heightSize, getSuggestedMinimumHeight()); 7859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Reconcile our calculated size with the heightMeasureSpec 787189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn int heightSizeAndState = resolveSizeAndState(heightSize, heightMeasureSpec, 0); 788189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn heightSize = heightSizeAndState & MEASURED_SIZE_MASK; 7899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Either expand children with weight to take up available space or 7919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // shrink them if they extend beyond our current bounds 7929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int delta = heightSize - mTotalLength; 7939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (delta != 0 && totalWeight > 0.0f) { 7949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float weightSum = mWeightSum > 0.0f ? mWeightSum : totalWeight; 7959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTotalLength = 0; 7979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; ++i) { 7999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getVirtualChildAt(i); 8009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() == View.GONE) { 8029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 8039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LinearLayout.LayoutParams lp = (LinearLayout.LayoutParams) child.getLayoutParams(); 8069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float childExtra = lp.weight; 8089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childExtra > 0) { 8099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Child said it could absorb extra space -- give him his share 8109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int share = (int) (childExtra * delta / weightSum); 8119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project weightSum -= childExtra; 8129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project delta -= share; 8139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childWidthMeasureSpec = getChildMeasureSpec(widthMeasureSpec, 8159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPaddingLeft + mPaddingRight + 8169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project lp.leftMargin + lp.rightMargin, lp.width); 8179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Use a field like lp.isMeasured to figure out if this 8199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // child has been previously measured 8209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((lp.height != 0) || (heightMode != MeasureSpec.EXACTLY)) { 8219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // child was measured once already above... 8229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // base new measurement on stored values 8239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childHeight = child.getMeasuredHeight() + share; 8249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childHeight < 0) { 8259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childHeight = 0; 8269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.measure(childWidthMeasureSpec, 8299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project MeasureSpec.makeMeasureSpec(childHeight, MeasureSpec.EXACTLY)); 8309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 8319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // child was skipped in the loop above. 8329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Measure for this first time here 8339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.measure(childWidthMeasureSpec, 8349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project MeasureSpec.makeMeasureSpec(share > 0 ? share : 0, 8359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project MeasureSpec.EXACTLY)); 8369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 837189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn 838189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn // Child may now not fit in vertical dimension. 839189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn childState = combineMeasuredStates(childState, child.getMeasuredState() 840189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn & (MEASURED_STATE_MASK>>MEASURED_HEIGHT_STATE_SHIFT)); 8419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int margin = lp.leftMargin + lp.rightMargin; 8449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int measuredWidth = child.getMeasuredWidth() + margin; 8459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project maxWidth = Math.max(maxWidth, measuredWidth); 8469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean matchWidthLocally = widthMode != MeasureSpec.EXACTLY && 848980a938c1c9a6a5791a8240e5a1e6638ab28dc77Romain Guy lp.width == LayoutParams.MATCH_PARENT; 8499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project alternativeMaxWidth = Math.max(alternativeMaxWidth, 8519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project matchWidthLocally ? margin : measuredWidth); 8529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 853980a938c1c9a6a5791a8240e5a1e6638ab28dc77Romain Guy allFillParent = allFillParent && lp.width == LayoutParams.MATCH_PARENT; 8549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 855053b48051abab0abd85995a23fcbc172e8c4c57fRomain Guy final int totalLength = mTotalLength; 856053b48051abab0abd85995a23fcbc172e8c4c57fRomain Guy mTotalLength = Math.max(totalLength, totalLength + child.getMeasuredHeight() + 857053b48051abab0abd85995a23fcbc172e8c4c57fRomain Guy lp.topMargin + lp.bottomMargin + getNextLocationOffset(child)); 8589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Add in our padding 861053b48051abab0abd85995a23fcbc172e8c4c57fRomain Guy mTotalLength += mPaddingTop + mPaddingBottom; 862053b48051abab0abd85995a23fcbc172e8c4c57fRomain Guy // TODO: Should we recompute the heightSpec based on the new total length? 8639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 8649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project alternativeMaxWidth = Math.max(alternativeMaxWidth, 8659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project weightedMaxWidth); 866f8ac6b7394cfd37f01471bb35475ff2930eee140Adam Powell 867f8ac6b7394cfd37f01471bb35475ff2930eee140Adam Powell 868f8ac6b7394cfd37f01471bb35475ff2930eee140Adam Powell // We have no limit, so make all weighted views as tall as the largest child. 869f8ac6b7394cfd37f01471bb35475ff2930eee140Adam Powell // Children will have already been measured once. 870eabc9198447c7f6253fcbee8af2887a650e79b00Adam Powell if (useLargestChild && heightMode != MeasureSpec.EXACTLY) { 871f8ac6b7394cfd37f01471bb35475ff2930eee140Adam Powell for (int i = 0; i < count; i++) { 872f8ac6b7394cfd37f01471bb35475ff2930eee140Adam Powell final View child = getVirtualChildAt(i); 873f8ac6b7394cfd37f01471bb35475ff2930eee140Adam Powell 874f8ac6b7394cfd37f01471bb35475ff2930eee140Adam Powell if (child == null || child.getVisibility() == View.GONE) { 875f8ac6b7394cfd37f01471bb35475ff2930eee140Adam Powell continue; 876f8ac6b7394cfd37f01471bb35475ff2930eee140Adam Powell } 877f8ac6b7394cfd37f01471bb35475ff2930eee140Adam Powell 878f8ac6b7394cfd37f01471bb35475ff2930eee140Adam Powell final LinearLayout.LayoutParams lp = 879f8ac6b7394cfd37f01471bb35475ff2930eee140Adam Powell (LinearLayout.LayoutParams) child.getLayoutParams(); 880f8ac6b7394cfd37f01471bb35475ff2930eee140Adam Powell 881f8ac6b7394cfd37f01471bb35475ff2930eee140Adam Powell float childExtra = lp.weight; 882f8ac6b7394cfd37f01471bb35475ff2930eee140Adam Powell if (childExtra > 0) { 883f8ac6b7394cfd37f01471bb35475ff2930eee140Adam Powell child.measure( 884f8ac6b7394cfd37f01471bb35475ff2930eee140Adam Powell MeasureSpec.makeMeasureSpec(child.getMeasuredWidth(), 885f8ac6b7394cfd37f01471bb35475ff2930eee140Adam Powell MeasureSpec.EXACTLY), 886f8ac6b7394cfd37f01471bb35475ff2930eee140Adam Powell MeasureSpec.makeMeasureSpec(largestChildHeight, 887f8ac6b7394cfd37f01471bb35475ff2930eee140Adam Powell MeasureSpec.EXACTLY)); 888f8ac6b7394cfd37f01471bb35475ff2930eee140Adam Powell } 889f8ac6b7394cfd37f01471bb35475ff2930eee140Adam Powell } 890f8ac6b7394cfd37f01471bb35475ff2930eee140Adam Powell } 8919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!allFillParent && widthMode != MeasureSpec.EXACTLY) { 8949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project maxWidth = alternativeMaxWidth; 8959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project maxWidth += mPaddingLeft + mPaddingRight; 8989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check against our minimum width 9009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project maxWidth = Math.max(maxWidth, getSuggestedMinimumWidth()); 9019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 902189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn setMeasuredDimension(resolveSizeAndState(maxWidth, widthMeasureSpec, childState), 903189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn heightSizeAndState); 9049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (matchWidth) { 9069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project forceUniformWidth(count, heightMeasureSpec); 9079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void forceUniformWidth(int count, int heightMeasureSpec) { 9119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pretend that the linear layout has an exact size. 9129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int uniformMeasureSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), 9139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project MeasureSpec.EXACTLY); 9149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i< count; ++i) { 9159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getVirtualChildAt(i); 9169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() != GONE) { 9179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LinearLayout.LayoutParams lp = ((LinearLayout.LayoutParams)child.getLayoutParams()); 9189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 919980a938c1c9a6a5791a8240e5a1e6638ab28dc77Romain Guy if (lp.width == LayoutParams.MATCH_PARENT) { 9209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Temporarily force children to reuse their old measured height 9219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME: this may not be right for something like wrapping text? 9229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int oldHeight = lp.height; 9239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project lp.height = child.getMeasuredHeight(); 9249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remeasue with new dimensions 9269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project measureChildWithMargins(child, uniformMeasureSpec, 0, heightMeasureSpec, 0); 9279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project lp.height = oldHeight; 9289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Measures the children when the orientation of this LinearLayout is set 9359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to {@link #HORIZONTAL}. 9369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 9379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param widthMeasureSpec Horizontal space requirements as imposed by the parent. 9389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param heightMeasureSpec Vertical space requirements as imposed by the parent. 9399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 9409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getOrientation() 9419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setOrientation(int) 9429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #onMeasure(int, int) 9439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void measureHorizontal(int widthMeasureSpec, int heightMeasureSpec) { 9459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTotalLength = 0; 9469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int maxHeight = 0; 947189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn int childState = 0; 9489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int alternativeMaxHeight = 0; 9499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int weightedMaxHeight = 0; 9509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean allFillParent = true; 9519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float totalWeight = 0; 9529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getVirtualChildCount(); 9549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int widthMode = MeasureSpec.getMode(widthMeasureSpec); 9569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int heightMode = MeasureSpec.getMode(heightMeasureSpec); 9579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean matchHeight = false; 9599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mMaxAscent == null || mMaxDescent == null) { 9619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMaxAscent = new int[VERTICAL_GRAVITY_COUNT]; 9629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMaxDescent = new int[VERTICAL_GRAVITY_COUNT]; 9639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] maxAscent = mMaxAscent; 9669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] maxDescent = mMaxDescent; 9679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project maxAscent[0] = maxAscent[1] = maxAscent[2] = maxAscent[3] = -1; 9699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project maxDescent[0] = maxDescent[1] = maxDescent[2] = maxDescent[3] = -1; 9709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean baselineAligned = mBaselineAligned; 9725b1b2417106f161e4bc66296888f4685f213eebdRomain Guy final boolean useLargestChild = mUseLargestChild; 973c352090c49b50a70aaddeb428bd5e27f7419884fRomain Guy 974c352090c49b50a70aaddeb428bd5e27f7419884fRomain Guy final boolean isExactly = widthMode == MeasureSpec.EXACTLY; 9755b1b2417106f161e4bc66296888f4685f213eebdRomain Guy 9765b1b2417106f161e4bc66296888f4685f213eebdRomain Guy int largestChildWidth = Integer.MIN_VALUE; 9779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See how wide everyone is. Also remember max height. 9799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; ++i) { 9809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getVirtualChildAt(i); 9819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child == null) { 9839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTotalLength += measureNullChild(i); 9849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 9859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() == GONE) { 9889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project i += getChildrenSkipCount(child, i); 9899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 9909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 992696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell if (hasDividerBeforeChildAt(i)) { 993fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell mTotalLength += mDividerWidth; 994fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell } 995fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell 9965b1b2417106f161e4bc66296888f4685f213eebdRomain Guy final LinearLayout.LayoutParams lp = (LinearLayout.LayoutParams) 9975b1b2417106f161e4bc66296888f4685f213eebdRomain Guy child.getLayoutParams(); 9989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project totalWeight += lp.weight; 10009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (widthMode == MeasureSpec.EXACTLY && lp.width == 0 && lp.weight > 0) { 10029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Optimization: don't bother measuring children who are going to use 10039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // leftover space. These views will get measured again down below if 10049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // there is any leftover space. 1005c352090c49b50a70aaddeb428bd5e27f7419884fRomain Guy if (isExactly) { 1006c352090c49b50a70aaddeb428bd5e27f7419884fRomain Guy mTotalLength += lp.leftMargin + lp.rightMargin; 1007c352090c49b50a70aaddeb428bd5e27f7419884fRomain Guy } else { 1008c352090c49b50a70aaddeb428bd5e27f7419884fRomain Guy final int totalLength = mTotalLength; 1009c352090c49b50a70aaddeb428bd5e27f7419884fRomain Guy mTotalLength = Math.max(totalLength, totalLength + 1010c352090c49b50a70aaddeb428bd5e27f7419884fRomain Guy lp.leftMargin + lp.rightMargin); 1011c352090c49b50a70aaddeb428bd5e27f7419884fRomain Guy } 10129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Baseline alignment requires to measure widgets to obtain the 10146c5664ac58463fefb580acd0d9b5550b25511f85Romain Guy // baseline offset (in particular for TextViews). The following 10156c5664ac58463fefb580acd0d9b5550b25511f85Romain Guy // defeats the optimization mentioned above. Allow the child to 10166c5664ac58463fefb580acd0d9b5550b25511f85Romain Guy // use as much space as it wants because we can shrink things 10176c5664ac58463fefb580acd0d9b5550b25511f85Romain Guy // later (and re-measure). 10189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (baselineAligned) { 10199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int freeSpec = MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED); 10209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.measure(freeSpec, freeSpec); 10219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 10239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int oldWidth = Integer.MIN_VALUE; 10249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp.width == 0 && lp.weight > 0) { 1026f5c6eff63d19a9f7a970a4f90619edac873c006dGilles Debunne // widthMode is either UNSPECIFIED or AT_MOST, and this 1027f5c6eff63d19a9f7a970a4f90619edac873c006dGilles Debunne // child 10289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // wanted to stretch to fill available space. Translate that to 10299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // WRAP_CONTENT so that it does not end up with a width of 0 10309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project oldWidth = 0; 10319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project lp.width = LayoutParams.WRAP_CONTENT; 10329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Determine how big this child would like to be. If this or 10359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // previous children have given a weight, then we allow it to 10369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // use all available space (and we will shrink things later 10379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if needed). 10389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project measureChildBeforeLayout(child, i, widthMeasureSpec, 10399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project totalWeight == 0 ? mTotalLength : 0, 10409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project heightMeasureSpec, 0); 10419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (oldWidth != Integer.MIN_VALUE) { 10439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project lp.width = oldWidth; 10449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10455b1b2417106f161e4bc66296888f4685f213eebdRomain Guy 10465b1b2417106f161e4bc66296888f4685f213eebdRomain Guy final int childWidth = child.getMeasuredWidth(); 1047c352090c49b50a70aaddeb428bd5e27f7419884fRomain Guy if (isExactly) { 1048c352090c49b50a70aaddeb428bd5e27f7419884fRomain Guy mTotalLength += childWidth + lp.leftMargin + lp.rightMargin + 1049c352090c49b50a70aaddeb428bd5e27f7419884fRomain Guy getNextLocationOffset(child); 1050c352090c49b50a70aaddeb428bd5e27f7419884fRomain Guy } else { 1051c352090c49b50a70aaddeb428bd5e27f7419884fRomain Guy final int totalLength = mTotalLength; 1052c352090c49b50a70aaddeb428bd5e27f7419884fRomain Guy mTotalLength = Math.max(totalLength, totalLength + childWidth + lp.leftMargin + 1053c352090c49b50a70aaddeb428bd5e27f7419884fRomain Guy lp.rightMargin + getNextLocationOffset(child)); 1054c352090c49b50a70aaddeb428bd5e27f7419884fRomain Guy } 10555b1b2417106f161e4bc66296888f4685f213eebdRomain Guy 10565b1b2417106f161e4bc66296888f4685f213eebdRomain Guy if (useLargestChild) { 10575b1b2417106f161e4bc66296888f4685f213eebdRomain Guy largestChildWidth = Math.max(childWidth, largestChildWidth); 10585b1b2417106f161e4bc66296888f4685f213eebdRomain Guy } 10599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean matchHeightLocally = false; 1062980a938c1c9a6a5791a8240e5a1e6638ab28dc77Romain Guy if (heightMode != MeasureSpec.EXACTLY && lp.height == LayoutParams.MATCH_PARENT) { 10639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The height of the linear layout will scale, and at least one 10649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // child said it wanted to match our height. Set a flag indicating that 10659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we need to remeasure at least that view when we know our height. 10669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project matchHeight = true; 10679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project matchHeightLocally = true; 10689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int margin = lp.topMargin + lp.bottomMargin; 10719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childHeight = child.getMeasuredHeight() + margin; 1072189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn childState = combineMeasuredStates(childState, child.getMeasuredState()); 10739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (baselineAligned) { 10759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childBaseline = child.getBaseline(); 10769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childBaseline != -1) { 10779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Translates the child's vertical gravity into an index 10789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // in the range 0..VERTICAL_GRAVITY_COUNT 10799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int gravity = (lp.gravity < 0 ? mGravity : lp.gravity) 10809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project & Gravity.VERTICAL_GRAVITY_MASK; 10819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int index = ((gravity >> Gravity.AXIS_Y_SHIFT) 10829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project & ~Gravity.AXIS_SPECIFIED) >> 1; 10839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project maxAscent[index] = Math.max(maxAscent[index], childBaseline); 10859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project maxDescent[index] = Math.max(maxDescent[index], childHeight - childBaseline); 10869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project maxHeight = Math.max(maxHeight, childHeight); 10909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1091980a938c1c9a6a5791a8240e5a1e6638ab28dc77Romain Guy allFillParent = allFillParent && lp.height == LayoutParams.MATCH_PARENT; 10929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp.weight > 0) { 10939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 10949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Heights of weighted Views are bogus if we end up 10959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * remeasuring, so keep them separate. 10969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project weightedMaxHeight = Math.max(weightedMaxHeight, 10989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project matchHeightLocally ? margin : childHeight); 10999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 11009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project alternativeMaxHeight = Math.max(alternativeMaxHeight, 11019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project matchHeightLocally ? margin : childHeight); 11029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project i += getChildrenSkipCount(child, i); 11059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1107696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell if (mTotalLength > 0 && hasDividerBeforeChildAt(count)) { 1108fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell mTotalLength += mDividerWidth; 1109fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell } 1110fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell 11119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check mMaxAscent[INDEX_TOP] first because it maps to Gravity.TOP, 11129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the most common case 11139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (maxAscent[INDEX_TOP] != -1 || 11149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project maxAscent[INDEX_CENTER_VERTICAL] != -1 || 11159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project maxAscent[INDEX_BOTTOM] != -1 || 11169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project maxAscent[INDEX_FILL] != -1) { 11179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int ascent = Math.max(maxAscent[INDEX_FILL], 11189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Math.max(maxAscent[INDEX_CENTER_VERTICAL], 11199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Math.max(maxAscent[INDEX_TOP], maxAscent[INDEX_BOTTOM]))); 11209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int descent = Math.max(maxDescent[INDEX_FILL], 11219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Math.max(maxDescent[INDEX_CENTER_VERTICAL], 11229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Math.max(maxDescent[INDEX_TOP], maxDescent[INDEX_BOTTOM]))); 11239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project maxHeight = Math.max(maxHeight, ascent + descent); 11249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1126f8ac6b7394cfd37f01471bb35475ff2930eee140Adam Powell if (useLargestChild && 1127f8ac6b7394cfd37f01471bb35475ff2930eee140Adam Powell (widthMode == MeasureSpec.AT_MOST || widthMode == MeasureSpec.UNSPECIFIED)) { 11285b1b2417106f161e4bc66296888f4685f213eebdRomain Guy mTotalLength = 0; 11295b1b2417106f161e4bc66296888f4685f213eebdRomain Guy 11305b1b2417106f161e4bc66296888f4685f213eebdRomain Guy for (int i = 0; i < count; ++i) { 11315b1b2417106f161e4bc66296888f4685f213eebdRomain Guy final View child = getVirtualChildAt(i); 11325b1b2417106f161e4bc66296888f4685f213eebdRomain Guy 11335b1b2417106f161e4bc66296888f4685f213eebdRomain Guy if (child == null) { 11345b1b2417106f161e4bc66296888f4685f213eebdRomain Guy mTotalLength += measureNullChild(i); 11355b1b2417106f161e4bc66296888f4685f213eebdRomain Guy continue; 11365b1b2417106f161e4bc66296888f4685f213eebdRomain Guy } 11375b1b2417106f161e4bc66296888f4685f213eebdRomain Guy 11385b1b2417106f161e4bc66296888f4685f213eebdRomain Guy if (child.getVisibility() == GONE) { 11395b1b2417106f161e4bc66296888f4685f213eebdRomain Guy i += getChildrenSkipCount(child, i); 11405b1b2417106f161e4bc66296888f4685f213eebdRomain Guy continue; 11415b1b2417106f161e4bc66296888f4685f213eebdRomain Guy } 11425b1b2417106f161e4bc66296888f4685f213eebdRomain Guy 11435b1b2417106f161e4bc66296888f4685f213eebdRomain Guy final LinearLayout.LayoutParams lp = (LinearLayout.LayoutParams) 11445b1b2417106f161e4bc66296888f4685f213eebdRomain Guy child.getLayoutParams(); 1145c352090c49b50a70aaddeb428bd5e27f7419884fRomain Guy if (isExactly) { 1146c352090c49b50a70aaddeb428bd5e27f7419884fRomain Guy mTotalLength += largestChildWidth + lp.leftMargin + lp.rightMargin + 1147c352090c49b50a70aaddeb428bd5e27f7419884fRomain Guy getNextLocationOffset(child); 1148c352090c49b50a70aaddeb428bd5e27f7419884fRomain Guy } else { 1149c352090c49b50a70aaddeb428bd5e27f7419884fRomain Guy final int totalLength = mTotalLength; 1150c352090c49b50a70aaddeb428bd5e27f7419884fRomain Guy mTotalLength = Math.max(totalLength, totalLength + largestChildWidth + 1151c352090c49b50a70aaddeb428bd5e27f7419884fRomain Guy lp.leftMargin + lp.rightMargin + getNextLocationOffset(child)); 1152c352090c49b50a70aaddeb428bd5e27f7419884fRomain Guy } 11535b1b2417106f161e4bc66296888f4685f213eebdRomain Guy } 11545b1b2417106f161e4bc66296888f4685f213eebdRomain Guy } 11555b1b2417106f161e4bc66296888f4685f213eebdRomain Guy 11569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Add in our padding 11579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTotalLength += mPaddingLeft + mPaddingRight; 11589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int widthSize = mTotalLength; 11609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check against our minimum width 11629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project widthSize = Math.max(widthSize, getSuggestedMinimumWidth()); 11639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Reconcile our calculated size with the widthMeasureSpec 1165189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn int widthSizeAndState = resolveSizeAndState(widthSize, widthMeasureSpec, 0); 1166189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn widthSize = widthSizeAndState & MEASURED_SIZE_MASK; 11679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Either expand children with weight to take up available space or 11699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // shrink them if they extend beyond our current bounds 11709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int delta = widthSize - mTotalLength; 11719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (delta != 0 && totalWeight > 0.0f) { 11729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float weightSum = mWeightSum > 0.0f ? mWeightSum : totalWeight; 11739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project maxAscent[0] = maxAscent[1] = maxAscent[2] = maxAscent[3] = -1; 11759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project maxDescent[0] = maxDescent[1] = maxDescent[2] = maxDescent[3] = -1; 11769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project maxHeight = -1; 11779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTotalLength = 0; 11799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; ++i) { 11819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getVirtualChildAt(i); 11829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child == null || child.getVisibility() == View.GONE) { 11849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 11859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final LinearLayout.LayoutParams lp = 11889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (LinearLayout.LayoutParams) child.getLayoutParams(); 11899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float childExtra = lp.weight; 11919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childExtra > 0) { 11929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Child said it could absorb extra space -- give him his share 11939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int share = (int) (childExtra * delta / weightSum); 11949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project weightSum -= childExtra; 11959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project delta -= share; 11969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childHeightMeasureSpec = getChildMeasureSpec( 11989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project heightMeasureSpec, 11999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPaddingTop + mPaddingBottom + lp.topMargin + lp.bottomMargin, 12009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project lp.height); 12019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Use a field like lp.isMeasured to figure out if this 12039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // child has been previously measured 12049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((lp.width != 0) || (widthMode != MeasureSpec.EXACTLY)) { 12059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // child was measured once already above ... base new measurement 12069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // on stored values 12079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childWidth = child.getMeasuredWidth() + share; 12089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childWidth < 0) { 12099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childWidth = 0; 12109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.measure( 12139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project MeasureSpec.makeMeasureSpec(childWidth, MeasureSpec.EXACTLY), 12149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childHeightMeasureSpec); 12159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 12169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // child was skipped in the loop above. Measure for this first time here 12179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.measure(MeasureSpec.makeMeasureSpec( 12189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project share > 0 ? share : 0, MeasureSpec.EXACTLY), 12199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childHeightMeasureSpec); 12209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1221189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn 1222189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn // Child may now not fit in horizontal dimension. 1223189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn childState = combineMeasuredStates(childState, 1224189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn child.getMeasuredState() & MEASURED_STATE_MASK); 12259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1227c352090c49b50a70aaddeb428bd5e27f7419884fRomain Guy if (isExactly) { 1228c352090c49b50a70aaddeb428bd5e27f7419884fRomain Guy mTotalLength += child.getMeasuredWidth() + lp.leftMargin + lp.rightMargin + 1229c352090c49b50a70aaddeb428bd5e27f7419884fRomain Guy getNextLocationOffset(child); 1230c352090c49b50a70aaddeb428bd5e27f7419884fRomain Guy } else { 1231c352090c49b50a70aaddeb428bd5e27f7419884fRomain Guy final int totalLength = mTotalLength; 1232c352090c49b50a70aaddeb428bd5e27f7419884fRomain Guy mTotalLength = Math.max(totalLength, totalLength + child.getMeasuredWidth() + 1233c352090c49b50a70aaddeb428bd5e27f7419884fRomain Guy lp.leftMargin + lp.rightMargin + getNextLocationOffset(child)); 1234c352090c49b50a70aaddeb428bd5e27f7419884fRomain Guy } 12359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean matchHeightLocally = heightMode != MeasureSpec.EXACTLY && 1237980a938c1c9a6a5791a8240e5a1e6638ab28dc77Romain Guy lp.height == LayoutParams.MATCH_PARENT; 12389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int margin = lp.topMargin + lp .bottomMargin; 12409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childHeight = child.getMeasuredHeight() + margin; 12419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project maxHeight = Math.max(maxHeight, childHeight); 12429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project alternativeMaxHeight = Math.max(alternativeMaxHeight, 12439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project matchHeightLocally ? margin : childHeight); 12449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1245980a938c1c9a6a5791a8240e5a1e6638ab28dc77Romain Guy allFillParent = allFillParent && lp.height == LayoutParams.MATCH_PARENT; 12469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (baselineAligned) { 12489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childBaseline = child.getBaseline(); 12499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childBaseline != -1) { 12509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Translates the child's vertical gravity into an index in the range 0..2 12519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int gravity = (lp.gravity < 0 ? mGravity : lp.gravity) 12529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project & Gravity.VERTICAL_GRAVITY_MASK; 12539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int index = ((gravity >> Gravity.AXIS_Y_SHIFT) 12549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project & ~Gravity.AXIS_SPECIFIED) >> 1; 12559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project maxAscent[index] = Math.max(maxAscent[index], childBaseline); 12579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project maxDescent[index] = Math.max(maxDescent[index], 12589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childHeight - childBaseline); 12599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Add in our padding 12649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTotalLength += mPaddingLeft + mPaddingRight; 1265053b48051abab0abd85995a23fcbc172e8c4c57fRomain Guy // TODO: Should we update widthSize with the new total length? 12669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check mMaxAscent[INDEX_TOP] first because it maps to Gravity.TOP, 12689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the most common case 12699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (maxAscent[INDEX_TOP] != -1 || 12709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project maxAscent[INDEX_CENTER_VERTICAL] != -1 || 12719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project maxAscent[INDEX_BOTTOM] != -1 || 12729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project maxAscent[INDEX_FILL] != -1) { 12739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int ascent = Math.max(maxAscent[INDEX_FILL], 12749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Math.max(maxAscent[INDEX_CENTER_VERTICAL], 12759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Math.max(maxAscent[INDEX_TOP], maxAscent[INDEX_BOTTOM]))); 12769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int descent = Math.max(maxDescent[INDEX_FILL], 12779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Math.max(maxDescent[INDEX_CENTER_VERTICAL], 12789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Math.max(maxDescent[INDEX_TOP], maxDescent[INDEX_BOTTOM]))); 12799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project maxHeight = Math.max(maxHeight, ascent + descent); 12809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 12829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project alternativeMaxHeight = Math.max(alternativeMaxHeight, weightedMaxHeight); 1283f8ac6b7394cfd37f01471bb35475ff2930eee140Adam Powell 1284f8ac6b7394cfd37f01471bb35475ff2930eee140Adam Powell // We have no limit, so make all weighted views as wide as the largest child. 1285f8ac6b7394cfd37f01471bb35475ff2930eee140Adam Powell // Children will have already been measured once. 1286eabc9198447c7f6253fcbee8af2887a650e79b00Adam Powell if (useLargestChild && widthMode != MeasureSpec.EXACTLY) { 1287f8ac6b7394cfd37f01471bb35475ff2930eee140Adam Powell for (int i = 0; i < count; i++) { 1288f8ac6b7394cfd37f01471bb35475ff2930eee140Adam Powell final View child = getVirtualChildAt(i); 1289f8ac6b7394cfd37f01471bb35475ff2930eee140Adam Powell 1290f8ac6b7394cfd37f01471bb35475ff2930eee140Adam Powell if (child == null || child.getVisibility() == View.GONE) { 1291f8ac6b7394cfd37f01471bb35475ff2930eee140Adam Powell continue; 1292f8ac6b7394cfd37f01471bb35475ff2930eee140Adam Powell } 1293f8ac6b7394cfd37f01471bb35475ff2930eee140Adam Powell 1294f8ac6b7394cfd37f01471bb35475ff2930eee140Adam Powell final LinearLayout.LayoutParams lp = 1295f8ac6b7394cfd37f01471bb35475ff2930eee140Adam Powell (LinearLayout.LayoutParams) child.getLayoutParams(); 1296f8ac6b7394cfd37f01471bb35475ff2930eee140Adam Powell 1297f8ac6b7394cfd37f01471bb35475ff2930eee140Adam Powell float childExtra = lp.weight; 1298f8ac6b7394cfd37f01471bb35475ff2930eee140Adam Powell if (childExtra > 0) { 1299f8ac6b7394cfd37f01471bb35475ff2930eee140Adam Powell child.measure( 1300f8ac6b7394cfd37f01471bb35475ff2930eee140Adam Powell MeasureSpec.makeMeasureSpec(largestChildWidth, MeasureSpec.EXACTLY), 1301f8ac6b7394cfd37f01471bb35475ff2930eee140Adam Powell MeasureSpec.makeMeasureSpec(child.getMeasuredHeight(), 1302f8ac6b7394cfd37f01471bb35475ff2930eee140Adam Powell MeasureSpec.EXACTLY)); 1303f8ac6b7394cfd37f01471bb35475ff2930eee140Adam Powell } 1304f8ac6b7394cfd37f01471bb35475ff2930eee140Adam Powell } 1305f8ac6b7394cfd37f01471bb35475ff2930eee140Adam Powell } 13069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!allFillParent && heightMode != MeasureSpec.EXACTLY) { 13099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project maxHeight = alternativeMaxHeight; 13109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project maxHeight += mPaddingTop + mPaddingBottom; 13139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check against our minimum height 13159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project maxHeight = Math.max(maxHeight, getSuggestedMinimumHeight()); 13169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1317189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn setMeasuredDimension(widthSizeAndState | (childState&MEASURED_STATE_MASK), 1318189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn resolveSizeAndState(maxHeight, heightMeasureSpec, 1319189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn (childState<<MEASURED_HEIGHT_STATE_SHIFT))); 13209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (matchHeight) { 13229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project forceUniformHeight(count, widthMeasureSpec); 13239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void forceUniformHeight(int count, int widthMeasureSpec) { 13279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pretend that the linear layout has an exact size. This is the measured height of 13289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ourselves. The measured height should be the max height of the children, changed 13299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to accomodate the heightMesureSpec from the parent 13309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int uniformMeasureSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), 13319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project MeasureSpec.EXACTLY); 13329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; ++i) { 13339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getVirtualChildAt(i); 13349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() != GONE) { 13359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LinearLayout.LayoutParams lp = (LinearLayout.LayoutParams) child.getLayoutParams(); 13369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1337980a938c1c9a6a5791a8240e5a1e6638ab28dc77Romain Guy if (lp.height == LayoutParams.MATCH_PARENT) { 13389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Temporarily force children to reuse their old measured width 13399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME: this may not be right for something like wrapping text? 13409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int oldWidth = lp.width; 13419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project lp.width = child.getMeasuredWidth(); 13429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remeasure with new dimensions 13449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project measureChildWithMargins(child, widthMeasureSpec, 0, uniformMeasureSpec, 0); 13459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project lp.width = oldWidth; 13469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>Returns the number of children to skip after measuring/laying out 13539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the specified child.</p> 13549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param child the child after which we want to skip children 13569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param index the index of the child after which we want to skip children 13579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the number of children to skip, 0 by default 13589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getChildrenSkipCount(View child, int index) { 13609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 13619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>Returns the size (width or height) that should be occupied by a null 13659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * child.</p> 13669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childIndex the index of the null child 13689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the width or height of the child depending on the orientation 13699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int measureNullChild(int childIndex) { 13719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 13729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>Measure the child according to the parent's measure specs. This 13769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * method should be overriden by subclasses to force the sizing of 13779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * children. This method is called by {@link #measureVertical(int, int)} and 13789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #measureHorizontal(int, int)}.</p> 13799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param child the child to measure 13819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childIndex the index of the child in this view 13829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param widthMeasureSpec horizontal space requirements as imposed by the parent 13839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param totalWidth extra space that has been used up by the parent horizontally 13849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param heightMeasureSpec vertical space requirements as imposed by the parent 13859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param totalHeight extra space that has been used up by the parent vertically 13869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void measureChildBeforeLayout(View child, int childIndex, 13889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int widthMeasureSpec, int totalWidth, int heightMeasureSpec, 13899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int totalHeight) { 13909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project measureChildWithMargins(child, widthMeasureSpec, totalWidth, 13919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project heightMeasureSpec, totalHeight); 13929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>Return the location offset of the specified child. This can be used 13969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * by subclasses to change the location of a given widget.</p> 13979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param child the child for which to obtain the location offset 13999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the location offset in pixels 14009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getLocationOffset(View child) { 14029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 14039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>Return the size offset of the next sibling of the specified child. 14079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This can be used by subclasses to change the location of the widget 14089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * following <code>child</code>.</p> 14099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param child the child whose next sibling will be moved 14119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the location offset of the next child in pixels 14129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getNextLocationOffset(View child) { 14149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 14159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 14199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOrientation == VERTICAL) { 14209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutVertical(); 14219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 14229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutHorizontal(); 14239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Position the children during a layout pass if the orientation of this 14289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * LinearLayout is set to {@link #VERTICAL}. 14299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getOrientation() 14319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setOrientation(int) 14329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #onLayout(boolean, int, int, int, int) 14339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void layoutVertical() { 14359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int paddingLeft = mPaddingLeft; 14369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14371e4cfbeba54898373c852097d1519a1d966c0854Fabrice Di Meglio int childTop; 14385b1b2417106f161e4bc66296888f4685f213eebdRomain Guy int childLeft; 14399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Where right end of child should go 14419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int width = mRight - mLeft; 14429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childRight = width - mPaddingRight; 14439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Space available for child 14459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childSpace = width - paddingLeft - mPaddingRight; 14469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getVirtualChildCount(); 14489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int majorGravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 14506a03640539405afbdefe72894759281b98aa6e6fFabrice Di Meglio final int minorGravity = mGravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK; 14519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14521e4cfbeba54898373c852097d1519a1d966c0854Fabrice Di Meglio switch (majorGravity) { 14531e4cfbeba54898373c852097d1519a1d966c0854Fabrice Di Meglio case Gravity.BOTTOM: 14541e4cfbeba54898373c852097d1519a1d966c0854Fabrice Di Meglio // mTotalLength contains the padding already 14551e4cfbeba54898373c852097d1519a1d966c0854Fabrice Di Meglio childTop = mPaddingTop + mBottom - mTop - mTotalLength; 14561e4cfbeba54898373c852097d1519a1d966c0854Fabrice Di Meglio break; 14571e4cfbeba54898373c852097d1519a1d966c0854Fabrice Di Meglio 14581e4cfbeba54898373c852097d1519a1d966c0854Fabrice Di Meglio // mTotalLength contains the padding already 14591e4cfbeba54898373c852097d1519a1d966c0854Fabrice Di Meglio case Gravity.CENTER_VERTICAL: 14601e4cfbeba54898373c852097d1519a1d966c0854Fabrice Di Meglio childTop = mPaddingTop + (mBottom - mTop - mTotalLength) / 2; 14611e4cfbeba54898373c852097d1519a1d966c0854Fabrice Di Meglio break; 14621e4cfbeba54898373c852097d1519a1d966c0854Fabrice Di Meglio 14631e4cfbeba54898373c852097d1519a1d966c0854Fabrice Di Meglio case Gravity.TOP: 14641e4cfbeba54898373c852097d1519a1d966c0854Fabrice Di Meglio default: 14651e4cfbeba54898373c852097d1519a1d966c0854Fabrice Di Meglio childTop = mPaddingTop; 14661e4cfbeba54898373c852097d1519a1d966c0854Fabrice Di Meglio break; 14679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1468fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell 14699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 14709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getVirtualChildAt(i); 14719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child == null) { 14729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childTop += measureNullChild(i); 14739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (child.getVisibility() != GONE) { 14749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childWidth = child.getMeasuredWidth(); 14759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childHeight = child.getMeasuredHeight(); 14769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final LinearLayout.LayoutParams lp = 14789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (LinearLayout.LayoutParams) child.getLayoutParams(); 14799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int gravity = lp.gravity; 14819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gravity < 0) { 14829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project gravity = minorGravity; 14839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1484c0053223bedf33581b0830fb87be32c1f26e5372Fabrice Di Meglio final int layoutDirection = getResolvedLayoutDirection(); 1485c0053223bedf33581b0830fb87be32c1f26e5372Fabrice Di Meglio final int absoluteGravity = Gravity.getAbsoluteGravity(gravity, layoutDirection); 1486de35ceeeb9f8855c72dfd70593e917aa75b43770Fabrice Di Meglio switch (absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) { 14879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case Gravity.CENTER_HORIZONTAL: 14889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childLeft = paddingLeft + ((childSpace - childWidth) / 2) 14899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + lp.leftMargin - lp.rightMargin; 14909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 14919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case Gravity.RIGHT: 14939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childLeft = childRight - childWidth - lp.rightMargin; 14949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 14951e4cfbeba54898373c852097d1519a1d966c0854Fabrice Di Meglio 14961e4cfbeba54898373c852097d1519a1d966c0854Fabrice Di Meglio case Gravity.LEFT: 1497611cd3f4a921e2a170b670a536548e88e861f7deRomain Guy default: 14981e4cfbeba54898373c852097d1519a1d966c0854Fabrice Di Meglio childLeft = paddingLeft + lp.leftMargin; 1499611cd3f4a921e2a170b670a536548e88e861f7deRomain Guy break; 15009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15011e4cfbeba54898373c852097d1519a1d966c0854Fabrice Di Meglio 1502696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell if (hasDividerBeforeChildAt(i)) { 1503696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell childTop += mDividerHeight; 1504696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell } 1505696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell 15069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childTop += lp.topMargin; 15079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildFrame(child, childLeft, childTop + getLocationOffset(child), 15089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childWidth, childHeight); 15099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childTop += childHeight + lp.bottomMargin + getNextLocationOffset(child); 15109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project i += getChildrenSkipCount(child, i); 15129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Position the children during a layout pass if the orientation of this 15189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * LinearLayout is set to {@link #HORIZONTAL}. 15199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getOrientation() 15219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setOrientation(int) 15229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #onLayout(boolean, int, int, int, int) 15239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void layoutHorizontal() { 15251e4cfbeba54898373c852097d1519a1d966c0854Fabrice Di Meglio final boolean isLayoutRtl = isLayoutRtl(); 15269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int paddingTop = mPaddingTop; 15279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15285b1b2417106f161e4bc66296888f4685f213eebdRomain Guy int childTop; 15291e4cfbeba54898373c852097d1519a1d966c0854Fabrice Di Meglio int childLeft; 15309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Where bottom of child should go 15329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = mBottom - mTop; 15339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childBottom = height - mPaddingBottom; 15349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Space available for child 15369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childSpace = height - paddingTop - mPaddingBottom; 15379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getVirtualChildCount(); 15399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15406a03640539405afbdefe72894759281b98aa6e6fFabrice Di Meglio final int majorGravity = mGravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK; 15419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int minorGravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 15429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean baselineAligned = mBaselineAligned; 15449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] maxAscent = mMaxAscent; 15469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] maxDescent = mMaxDescent; 15479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1548c0053223bedf33581b0830fb87be32c1f26e5372Fabrice Di Meglio final int layoutDirection = getResolvedLayoutDirection(); 1549c0053223bedf33581b0830fb87be32c1f26e5372Fabrice Di Meglio switch (Gravity.getAbsoluteGravity(majorGravity, layoutDirection)) { 15501e4cfbeba54898373c852097d1519a1d966c0854Fabrice Di Meglio case Gravity.RIGHT: 15511e4cfbeba54898373c852097d1519a1d966c0854Fabrice Di Meglio // mTotalLength contains the padding already 15521e4cfbeba54898373c852097d1519a1d966c0854Fabrice Di Meglio childLeft = mPaddingLeft + mRight - mLeft - mTotalLength; 15531e4cfbeba54898373c852097d1519a1d966c0854Fabrice Di Meglio break; 15541e4cfbeba54898373c852097d1519a1d966c0854Fabrice Di Meglio 15551e4cfbeba54898373c852097d1519a1d966c0854Fabrice Di Meglio case Gravity.CENTER_HORIZONTAL: 15561e4cfbeba54898373c852097d1519a1d966c0854Fabrice Di Meglio // mTotalLength contains the padding already 15571e4cfbeba54898373c852097d1519a1d966c0854Fabrice Di Meglio childLeft = mPaddingLeft + (mRight - mLeft - mTotalLength) / 2; 15581e4cfbeba54898373c852097d1519a1d966c0854Fabrice Di Meglio break; 15591e4cfbeba54898373c852097d1519a1d966c0854Fabrice Di Meglio 15601e4cfbeba54898373c852097d1519a1d966c0854Fabrice Di Meglio case Gravity.LEFT: 15611e4cfbeba54898373c852097d1519a1d966c0854Fabrice Di Meglio default: 15621e4cfbeba54898373c852097d1519a1d966c0854Fabrice Di Meglio childLeft = mPaddingLeft; 15631e4cfbeba54898373c852097d1519a1d966c0854Fabrice Di Meglio break; 15641e4cfbeba54898373c852097d1519a1d966c0854Fabrice Di Meglio } 15651e4cfbeba54898373c852097d1519a1d966c0854Fabrice Di Meglio 15661e4cfbeba54898373c852097d1519a1d966c0854Fabrice Di Meglio int start = 0; 15671e4cfbeba54898373c852097d1519a1d966c0854Fabrice Di Meglio int dir = 1; 15681e4cfbeba54898373c852097d1519a1d966c0854Fabrice Di Meglio //In case of RTL, start drawing from the last child. 15691e4cfbeba54898373c852097d1519a1d966c0854Fabrice Di Meglio if (isLayoutRtl) { 15701e4cfbeba54898373c852097d1519a1d966c0854Fabrice Di Meglio start = count - 1; 15711e4cfbeba54898373c852097d1519a1d966c0854Fabrice Di Meglio dir = -1; 1572fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell } 1573fcca00accb923d3cbda4e0d6f5540b10e8279cd2Adam Powell 15749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 15751e4cfbeba54898373c852097d1519a1d966c0854Fabrice Di Meglio int childIndex = start + dir * i; 15761e4cfbeba54898373c852097d1519a1d966c0854Fabrice Di Meglio final View child = getVirtualChildAt(childIndex); 15779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child == null) { 15791e4cfbeba54898373c852097d1519a1d966c0854Fabrice Di Meglio childLeft += measureNullChild(childIndex); 15809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (child.getVisibility() != GONE) { 15819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childWidth = child.getMeasuredWidth(); 15829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childHeight = child.getMeasuredHeight(); 15839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childBaseline = -1; 15849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final LinearLayout.LayoutParams lp = 15869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (LinearLayout.LayoutParams) child.getLayoutParams(); 15879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1588980a938c1c9a6a5791a8240e5a1e6638ab28dc77Romain Guy if (baselineAligned && lp.height != LayoutParams.MATCH_PARENT) { 15899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childBaseline = child.getBaseline(); 15909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int gravity = lp.gravity; 15939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gravity < 0) { 15949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project gravity = minorGravity; 15959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (gravity & Gravity.VERTICAL_GRAVITY_MASK) { 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case Gravity.TOP: 15999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childTop = paddingTop + lp.topMargin; 16009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childBaseline != -1) { 16019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childTop += maxAscent[INDEX_TOP] - childBaseline; 16029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case Gravity.CENTER_VERTICAL: 16065b1b2417106f161e4bc66296888f4685f213eebdRomain Guy // Removed support for baseline alignment when layout_gravity or 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // gravity == center_vertical. See bug #1038483. 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Keep the code around if we need to re-enable this feature 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if (childBaseline != -1) { 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // // Align baselines vertically only if the child is smaller than us 16119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if (childSpace - childHeight > 0) { 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // childTop = paddingTop + (childSpace / 2) - childBaseline; 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // } else { 16149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // childTop = paddingTop + (childSpace - childHeight) / 2; 16159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // } 16169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // } else { 16179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childTop = paddingTop + ((childSpace - childHeight) / 2) 16189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + lp.topMargin - lp.bottomMargin; 16199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 16209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case Gravity.BOTTOM: 16229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childTop = childBottom - childHeight - lp.bottomMargin; 16239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childBaseline != -1) { 16249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int descent = child.getMeasuredHeight() - childBaseline; 16259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childTop -= (maxDescent[INDEX_BOTTOM] - descent); 16269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 1628611cd3f4a921e2a170b670a536548e88e861f7deRomain Guy default: 1629611cd3f4a921e2a170b670a536548e88e861f7deRomain Guy childTop = paddingTop; 1630611cd3f4a921e2a170b670a536548e88e861f7deRomain Guy break; 16319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16331e4cfbeba54898373c852097d1519a1d966c0854Fabrice Di Meglio if (hasDividerBeforeChildAt(childIndex)) { 1634696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell childLeft += mDividerWidth; 1635696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell } 1636696cba573e651b0e4f18a4718627c8ccecb3bda0Adam Powell 16379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childLeft += lp.leftMargin; 16389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildFrame(child, childLeft + getLocationOffset(child), childTop, 16399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childWidth, childHeight); 16409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childLeft += childWidth + lp.rightMargin + 16419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getNextLocationOffset(child); 16429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16431e4cfbeba54898373c852097d1519a1d966c0854Fabrice Di Meglio i += getChildrenSkipCount(child, childIndex); 16449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void setChildFrame(View child, int left, int top, int width, int height) { 16499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.layout(left, top, left + width, top + height); 16509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Should the layout be a column or a row. 16549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param orientation Pass HORIZONTAL or VERTICAL. Default 16559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * value is HORIZONTAL. 16569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#LinearLayout_orientation 16589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setOrientation(int orientation) { 16609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOrientation != orientation) { 16619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOrientation = orientation; 16629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 16639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current orientation. 16689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return either {@link #HORIZONTAL} or {@link #VERTICAL} 16709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getOrientation() { 16729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mOrientation; 16739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Describes how the child views are positioned. Defaults to GRAVITY_TOP. If 16779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this layout has a VERTICAL orientation, this controls where all the child 16789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * views are placed if there is extra vertical space. If this layout has a 16799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * HORIZONTAL orientation, this controls the alignment of the children. 16809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param gravity See {@link android.view.Gravity} 16829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#LinearLayout_gravity 16849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @android.view.RemotableViewMethod 16869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setGravity(int gravity) { 16879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mGravity != gravity) { 16886a03640539405afbdefe72894759281b98aa6e6fFabrice Di Meglio if ((gravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) == 0) { 16899e3b002d3f9141d54948a65e0330fdcd09e75a30Fabrice Di Meglio gravity |= Gravity.START; 16909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((gravity & Gravity.VERTICAL_GRAVITY_MASK) == 0) { 16939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project gravity |= Gravity.TOP; 16949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGravity = gravity; 16979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 16989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @android.view.RemotableViewMethod 17029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setHorizontalGravity(int horizontalGravity) { 17036a03640539405afbdefe72894759281b98aa6e6fFabrice Di Meglio final int gravity = horizontalGravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK; 17046a03640539405afbdefe72894759281b98aa6e6fFabrice Di Meglio if ((mGravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) != gravity) { 17056a03640539405afbdefe72894759281b98aa6e6fFabrice Di Meglio mGravity = (mGravity & ~Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) | gravity; 17069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 17079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @android.view.RemotableViewMethod 17119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setVerticalGravity(int verticalGravity) { 17129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int gravity = verticalGravity & Gravity.VERTICAL_GRAVITY_MASK; 17139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != gravity) { 17149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGravity = (mGravity & ~Gravity.VERTICAL_GRAVITY_MASK) | gravity; 17159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 17169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams generateLayoutParams(AttributeSet attrs) { 17219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LinearLayout.LayoutParams(getContext(), attrs); 17229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 17259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns a set of layout parameters with a width of 1726980a938c1c9a6a5791a8240e5a1e6638ab28dc77Romain Guy * {@link android.view.ViewGroup.LayoutParams#MATCH_PARENT} 17279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * and a height of {@link android.view.ViewGroup.LayoutParams#WRAP_CONTENT} 17289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * when the layout's orientation is {@link #VERTICAL}. When the orientation is 17299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #HORIZONTAL}, the width is set to {@link LayoutParams#WRAP_CONTENT} 17309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * and the height to {@link LayoutParams#WRAP_CONTENT}. 17319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected LayoutParams generateDefaultLayoutParams() { 17349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOrientation == HORIZONTAL) { 17359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT); 17369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (mOrientation == VERTICAL) { 1737980a938c1c9a6a5791a8240e5a1e6638ab28dc77Romain Guy return new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT); 17389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 17409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 17449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(p); 17459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Override to allow type-checking of LayoutParams. 17499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 17519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof LinearLayout.LayoutParams; 17529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17538a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 17548a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 17558a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityEvent(AccessibilityEvent event) { 17568a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityEvent(event); 17578a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov event.setClassName(LinearLayout.class.getName()); 17588a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 17598a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 17608a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 17618a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { 17628a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityNodeInfo(info); 17638a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov info.setClassName(LinearLayout.class.getName()); 17648a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 17658a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 17669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 17679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Per-child layout information associated with ViewLinearLayout. 17689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 17699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#LinearLayout_Layout_layout_weight 17709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#LinearLayout_Layout_layout_gravity 17719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class LayoutParams extends ViewGroup.MarginLayoutParams { 17739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 17749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates how much of the extra space in the LinearLayout will be 17759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * allocated to the view associated with these LayoutParams. Specify 17769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 0 if the view should not be stretched. Otherwise the extra pixels 17779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * will be pro-rated among all views whose weight is greater than 0. 17789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1779bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "layout") 17809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public float weight; 17819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 17839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Gravity for the view associated with these LayoutParams. 17849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 17859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.Gravity 17869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1787bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "layout", mapping = { 17889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.IntToString(from = -1, to = "NONE"), 17899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.IntToString(from = Gravity.NO_GRAVITY, to = "NONE"), 17909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.IntToString(from = Gravity.TOP, to = "TOP"), 17919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.IntToString(from = Gravity.BOTTOM, to = "BOTTOM"), 17929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.IntToString(from = Gravity.LEFT, to = "LEFT"), 17939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.IntToString(from = Gravity.RIGHT, to = "RIGHT"), 17949e3b002d3f9141d54948a65e0330fdcd09e75a30Fabrice Di Meglio @ViewDebug.IntToString(from = Gravity.START, to = "START"), 17959e3b002d3f9141d54948a65e0330fdcd09e75a30Fabrice Di Meglio @ViewDebug.IntToString(from = Gravity.END, to = "END"), 17969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.IntToString(from = Gravity.CENTER_VERTICAL, to = "CENTER_VERTICAL"), 17979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.IntToString(from = Gravity.FILL_VERTICAL, to = "FILL_VERTICAL"), 17989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.IntToString(from = Gravity.CENTER_HORIZONTAL, to = "CENTER_HORIZONTAL"), 17999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.IntToString(from = Gravity.FILL_HORIZONTAL, to = "FILL_HORIZONTAL"), 18009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.IntToString(from = Gravity.CENTER, to = "CENTER"), 18019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.IntToString(from = Gravity.FILL, to = "FILL") 18029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }) 18039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int gravity = -1; 18049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 18079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(Context c, AttributeSet attrs) { 18099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(c, attrs); 18109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = 18119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project c.obtainStyledAttributes(attrs, com.android.internal.R.styleable.LinearLayout_Layout); 18129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project weight = a.getFloat(com.android.internal.R.styleable.LinearLayout_Layout_layout_weight, 0); 18149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project gravity = a.getInt(com.android.internal.R.styleable.LinearLayout_Layout_layout_gravity, -1); 18159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 18179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 18219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int width, int height) { 18239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(width, height); 18249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project weight = 0; 18259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates a new set of layout parameters with the specified width, height 18299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * and weight. 18309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1831980a938c1c9a6a5791a8240e5a1e6638ab28dc77Romain Guy * @param width the width, either {@link #MATCH_PARENT}, 18329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #WRAP_CONTENT} or a fixed size in pixels 1833980a938c1c9a6a5791a8240e5a1e6638ab28dc77Romain Guy * @param height the height, either {@link #MATCH_PARENT}, 18349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #WRAP_CONTENT} or a fixed size in pixels 18359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param weight the weight 18369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int width, int height, float weight) { 18389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(width, height); 18399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.weight = weight; 18409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 18449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams p) { 18469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(p); 18479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 18519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(MarginLayoutParams source) { 18539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 18549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String debug(String output) { 18589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return output + "LinearLayout.LayoutParams={width=" + sizeToString(width) + 18599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ", height=" + sizeToString(height) + " weight=" + weight + "}"; 18609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1863