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 199e3b002d3f9141d54948a65e0330fdcd09e75a30Fabrice Di Meglioimport com.android.internal.R; 209e3b002d3f9141d54948a65e0330fdcd09e75a30Fabrice Di Meglio 21bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guyimport java.util.ArrayDeque; 229e3b002d3f9141d54948a65e0330fdcd09e75a30Fabrice Di Meglioimport java.util.ArrayList; 239e3b002d3f9141d54948a65e0330fdcd09e75a30Fabrice Di Meglioimport java.util.Comparator; 24bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guyimport java.util.HashMap; 259e3b002d3f9141d54948a65e0330fdcd09e75a30Fabrice Di Meglioimport java.util.SortedSet; 269e3b002d3f9141d54948a65e0330fdcd09e75a30Fabrice Di Meglioimport java.util.TreeSet; 279e3b002d3f9141d54948a65e0330fdcd09e75a30Fabrice Di Meglio 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.Context; 29725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guyimport android.content.res.Resources; 306a03640539405afbdefe72894759281b98aa6e6fFabrice Di Meglioimport android.content.res.TypedArray; 3175986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganovimport android.graphics.Rect; 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.AttributeSet; 33725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guyimport android.util.Pool; 346a03640539405afbdefe72894759281b98aa6e6fFabrice Di Meglioimport android.util.Poolable; 35725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guyimport android.util.PoolableManager; 366a03640539405afbdefe72894759281b98aa6e6fFabrice Di Meglioimport android.util.Pools; 376a03640539405afbdefe72894759281b98aa6e6fFabrice Di Meglioimport android.util.SparseArray; 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.Gravity; 3975986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganovimport android.view.View; 40c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Projectimport android.view.ViewDebug; 4175986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganovimport android.view.ViewGroup; 4275986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganovimport android.view.accessibility.AccessibilityEvent; 438a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganovimport android.view.accessibility.AccessibilityNodeInfo; 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.widget.RemoteViews.RemoteView; 456a03640539405afbdefe72894759281b98aa6e6fFabrice Di Meglio 466a03640539405afbdefe72894759281b98aa6e6fFabrice Di Meglioimport static android.util.Log.d; 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A Layout where the positions of the children can be described in relation to each other or to the 50520c4204fb9d4f2a7a79dcb5d171e681b7bc6a07Romain Guy * parent. 51a1f3e4aef19882b4b81075d9205bd363efe1e66dRomain Guy * 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p> 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that you cannot have a circular dependency between the size of the RelativeLayout and the 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position of its children. For example, you cannot have a RelativeLayout whose height is set to 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup.LayoutParams#WRAP_CONTENT WRAP_CONTENT} and a child set to 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #ALIGN_PARENT_BOTTOM}. 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * </p> 58a1f3e4aef19882b4b81075d9205bd363efe1e66dRomain Guy * 5941ec65355bd6ded652769725b276d47c54a0d913Scott Main * <p>See the <a href="{@docRoot}resources/tutorials/views/hello-relativelayout.html">Relative 6041ec65355bd6ded652769725b276d47c54a0d913Scott Main * Layout tutorial</a>.</p> 6141ec65355bd6ded652769725b276d47c54a0d913Scott Main * 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p> 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Also see {@link android.widget.RelativeLayout.LayoutParams RelativeLayout.LayoutParams} for 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout attributes 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * </p> 66a1f3e4aef19882b4b81075d9205bd363efe1e66dRomain Guy * 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_gravity 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_ignoreGravity 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project@RemoteView 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic class RelativeLayout extends ViewGroup { 72725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private static final String LOG_TAG = "RelativeLayout"; 73725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 74725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private static final boolean DEBUG_GRAPH = false; 75725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRUE = -1; 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's right edge with another child's left edge. 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int LEFT_OF = 0; 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's left edge with another child's right edge. 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int RIGHT_OF = 1; 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's bottom edge with another child's top edge. 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ABOVE = 2; 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's top edge with another child's bottom edge. 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int BELOW = 3; 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's baseline with another child's baseline. 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_BASELINE = 4; 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's left edge with another child's left edge. 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_LEFT = 5; 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's top edge with another child's top edge. 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_TOP = 6; 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's right edge with another child's right edge. 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_RIGHT = 7; 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's bottom edge with another child's bottom edge. 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_BOTTOM = 8; 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns the child's left edge with its RelativeLayout 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * parent's left edge. 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_PARENT_LEFT = 9; 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns the child's top edge with its RelativeLayout 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * parent's top edge. 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_PARENT_TOP = 10; 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns the child's right edge with its RelativeLayout 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * parent's right edge. 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_PARENT_RIGHT = 11; 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns the child's bottom edge with its RelativeLayout 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * parent's bottom edge. 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_PARENT_BOTTOM = 12; 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that centers the child with respect to the bounds of its 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * RelativeLayout parent. 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int CENTER_IN_PARENT = 13; 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that centers the child horizontally with respect to the 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bounds of its RelativeLayout parent. 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int CENTER_HORIZONTAL = 14; 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that centers the child vertically with respect to the 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bounds of its RelativeLayout parent. 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int CENTER_VERTICAL = 15; 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int VERB_COUNT = 16; 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 155bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy 156bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy private static final int[] RULES_VERTICAL = { 157bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy ABOVE, BELOW, ALIGN_BASELINE, ALIGN_TOP, ALIGN_BOTTOM 158bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy }; 159bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy 160bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy private static final int[] RULES_HORIZONTAL = { 161bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy LEFT_OF, RIGHT_OF, ALIGN_LEFT, ALIGN_RIGHT 162bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy }; 163bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View mBaselineView = null; 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mHasBaselineAlignedChild; 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mGravity = Gravity.LEFT | Gravity.TOP; 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final Rect mContentBounds = new Rect(); 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final Rect mSelfBounds = new Rect(); 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mIgnoreGravity; 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 172725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private SortedSet<View> mTopToBottomLeftToRightSet = null; 173725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 174725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private boolean mDirtyHierarchy; 175725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private View[] mSortedHorizontalChildren = new View[0]; 176725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private View[] mSortedVerticalChildren = new View[0]; 177725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private final DependencyGraph mGraph = new DependencyGraph(); 17875986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public RelativeLayout(Context context) { 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context); 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public RelativeLayout(Context context, AttributeSet attrs) { 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, attrs); 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initFromAttributes(context, attrs); 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public RelativeLayout(Context context, AttributeSet attrs, int defStyle) { 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, attrs, defStyle); 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initFromAttributes(context, attrs); 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void initFromAttributes(Context context, AttributeSet attrs) { 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.RelativeLayout); 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIgnoreGravity = a.getResourceId(R.styleable.RelativeLayout_ignoreGravity, View.NO_ID); 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGravity = a.getInt(R.styleable.RelativeLayout_gravity, mGravity); 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 200e0a799a2ac1ca78e30fbac9e4e12a063425c08d3Patrick Dubroy @Override 201e0a799a2ac1ca78e30fbac9e4e12a063425c08d3Patrick Dubroy public boolean shouldDelayChildPressedState() { 202e0a799a2ac1ca78e30fbac9e4e12a063425c08d3Patrick Dubroy return false; 203e0a799a2ac1ca78e30fbac9e4e12a063425c08d3Patrick Dubroy } 204e0a799a2ac1ca78e30fbac9e4e12a063425c08d3Patrick Dubroy 2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines which View is ignored when the gravity is applied. This setting has no 2079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * effect if the gravity is <code>Gravity.LEFT | Gravity.TOP</code>. 2089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param viewId The id of the View to be ignored by gravity, or 0 if no View 2109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * should be ignored. 2119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setGravity(int) 2139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_ignoreGravity 2159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @android.view.RemotableViewMethod 2179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setIgnoreGravity(int viewId) { 2189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIgnoreGravity = viewId; 2199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2221018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne * Describes how the child views are positioned. 2231018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne * 2241018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne * @return the gravity. 2251018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne * 2261018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne * @see #setGravity(int) 2271018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne * @see android.view.Gravity 2281018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne * 2291018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne * @attr ref android.R.styleable#RelativeLayout_gravity 2301018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne */ 2311018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne public int getGravity() { 2321018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne return mGravity; 2331018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne } 2341018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne 2351018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne /** 2369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Describes how the child views are positioned. Defaults to 2379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <code>Gravity.LEFT | Gravity.TOP</code>. 2389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2391fec24e0fff95afaa90bbf811e9f8db659eb9324Adam Powell * <p>Note that since RelativeLayout considers the positioning of each child 2401fec24e0fff95afaa90bbf811e9f8db659eb9324Adam Powell * relative to one another to be significant, setting gravity will affect 2411fec24e0fff95afaa90bbf811e9f8db659eb9324Adam Powell * the positioning of all children as a single unit within the parent. 2421fec24e0fff95afaa90bbf811e9f8db659eb9324Adam Powell * This happens after children have been relatively positioned.</p> 2431fec24e0fff95afaa90bbf811e9f8db659eb9324Adam Powell * 2449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param gravity See {@link android.view.Gravity} 2459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setHorizontalGravity(int) 2479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setVerticalGravity(int) 2489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_gravity 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @android.view.RemotableViewMethod 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setGravity(int gravity) { 2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mGravity != gravity) { 2546a03640539405afbdefe72894759281b98aa6e6fFabrice Di Meglio if ((gravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) == 0) { 2559e3b002d3f9141d54948a65e0330fdcd09e75a30Fabrice Di Meglio gravity |= Gravity.START; 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((gravity & Gravity.VERTICAL_GRAVITY_MASK) == 0) { 2599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project gravity |= Gravity.TOP; 2609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGravity = gravity; 2639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 2649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @android.view.RemotableViewMethod 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setHorizontalGravity(int horizontalGravity) { 2696a03640539405afbdefe72894759281b98aa6e6fFabrice Di Meglio final int gravity = horizontalGravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK; 2706a03640539405afbdefe72894759281b98aa6e6fFabrice Di Meglio if ((mGravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) != gravity) { 2716a03640539405afbdefe72894759281b98aa6e6fFabrice Di Meglio mGravity = (mGravity & ~Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) | gravity; 2729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 2739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @android.view.RemotableViewMethod 2779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setVerticalGravity(int verticalGravity) { 2789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int gravity = verticalGravity & Gravity.VERTICAL_GRAVITY_MASK; 2799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != gravity) { 2809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGravity = (mGravity & ~Gravity.VERTICAL_GRAVITY_MASK) | gravity; 2819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getBaseline() { 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mBaselineView != null ? mBaselineView.getBaseline() : super.getBaseline(); 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 291725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy public void requestLayout() { 292725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy super.requestLayout(); 293725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy mDirtyHierarchy = true; 294725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 295725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 296725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private void sortChildren() { 297725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy int count = getChildCount(); 298725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (mSortedVerticalChildren.length != count) mSortedVerticalChildren = new View[count]; 299725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (mSortedHorizontalChildren.length != count) mSortedHorizontalChildren = new View[count]; 300725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 301725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final DependencyGraph graph = mGraph; 302725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy graph.clear(); 303725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 304725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 305725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final View child = getChildAt(i); 306725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy graph.add(child); 307725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 308725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 309725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (DEBUG_GRAPH) { 310725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy d(LOG_TAG, "=== Sorted vertical children"); 311bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy graph.log(getResources(), RULES_VERTICAL); 312725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy d(LOG_TAG, "=== Sorted horizontal children"); 313bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy graph.log(getResources(), RULES_HORIZONTAL); 314725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 315725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 316bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy graph.getSortedViews(mSortedVerticalChildren, RULES_VERTICAL); 317bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy graph.getSortedViews(mSortedHorizontalChildren, RULES_HORIZONTAL); 3189fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy 3199fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy if (DEBUG_GRAPH) { 3209fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy d(LOG_TAG, "=== Ordered list of vertical children"); 3219fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy for (View view : mSortedVerticalChildren) { 3229fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy DependencyGraph.printViewId(getResources(), view); 3239fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy } 3249fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy d(LOG_TAG, "=== Ordered list of horizontal children"); 3259fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy for (View view : mSortedHorizontalChildren) { 3269fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy DependencyGraph.printViewId(getResources(), view); 3279fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy } 3289fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy } 329725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 330725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 33142460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy // TODO: we need to find another way to implement RelativeLayout 33242460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy // This implementation cannot handle every case 333725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy @Override 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 335725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (mDirtyHierarchy) { 336725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy mDirtyHierarchy = false; 337725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy sortChildren(); 338725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 339725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int myWidth = -1; 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int myHeight = -1; 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int width = 0; 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = 0; 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int widthMode = MeasureSpec.getMode(widthMeasureSpec); 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int heightMode = MeasureSpec.getMode(heightMeasureSpec); 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int widthSize = MeasureSpec.getSize(widthMeasureSpec); 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int heightSize = MeasureSpec.getSize(heightMeasureSpec); 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Record our dimensions if they are known; 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (widthMode != MeasureSpec.UNSPECIFIED) { 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project myWidth = widthSize; 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (heightMode != MeasureSpec.UNSPECIFIED) { 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project myHeight = heightSize; 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (widthMode == MeasureSpec.EXACTLY) { 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project width = myWidth; 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (heightMode == MeasureSpec.EXACTLY) { 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = myHeight; 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mHasBaselineAlignedChild = false; 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View ignore = null; 3716a03640539405afbdefe72894759281b98aa6e6fFabrice Di Meglio int gravity = mGravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK; 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean horizontalGravity = gravity != Gravity.LEFT && gravity != 0; 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean verticalGravity = gravity != Gravity.TOP && gravity != 0; 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int left = Integer.MAX_VALUE; 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int top = Integer.MAX_VALUE; 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int right = Integer.MIN_VALUE; 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int bottom = Integer.MIN_VALUE; 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 381f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy boolean offsetHorizontalAxis = false; 382f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy boolean offsetVerticalAxis = false; 383f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((horizontalGravity || verticalGravity) && mIgnoreGravity != View.NO_ID) { 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ignore = findViewById(mIgnoreGravity); 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 388f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy final boolean isWrapContentWidth = widthMode != MeasureSpec.EXACTLY; 389f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy final boolean isWrapContentHeight = heightMode != MeasureSpec.EXACTLY; 390f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 391e24ef6032f52cb754bfeb9ab32aae0a5cfa61f8aRomain Guy View[] views = mSortedHorizontalChildren; 392725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy int count = views.length; 393725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 394725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy View child = views[i]; 395725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (child.getVisibility() != GONE) { 396725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy LayoutParams params = (LayoutParams) child.getLayoutParams(); 397956070383945db5f842ec05e507fd0233705738cRomain Guy 398956070383945db5f842ec05e507fd0233705738cRomain Guy applyHorizontalSizeRules(params, myWidth); 399f782e60efc09f210643432f31b4c18026d7716d6Romain Guy measureChildHorizontal(child, params, myWidth, myHeight); 400f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (positionChildHorizontal(child, params, myWidth, isWrapContentWidth)) { 401f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy offsetHorizontalAxis = true; 402f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 403725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 404725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 405725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 406e24ef6032f52cb754bfeb9ab32aae0a5cfa61f8aRomain Guy views = mSortedVerticalChildren; 407725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy count = views.length; 408f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 409725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 410725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy View child = views[i]; 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() != GONE) { 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LayoutParams params = (LayoutParams) child.getLayoutParams(); 413956070383945db5f842ec05e507fd0233705738cRomain Guy 414956070383945db5f842ec05e507fd0233705738cRomain Guy applyVerticalSizeRules(params, myHeight); 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project measureChild(child, params, myWidth, myHeight); 416f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (positionChildVertical(child, params, myHeight, isWrapContentHeight)) { 417f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy offsetVerticalAxis = true; 418f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 420f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (isWrapContentWidth) { 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project width = Math.max(width, params.mRight); 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 423f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 424f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (isWrapContentHeight) { 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = Math.max(height, params.mBottom); 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != ignore || verticalGravity) { 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project left = Math.min(left, params.mLeft - params.leftMargin); 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project top = Math.min(top, params.mTop - params.topMargin); 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != ignore || horizontalGravity) { 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project right = Math.max(right, params.mRight + params.rightMargin); 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project bottom = Math.max(bottom, params.mBottom + params.bottomMargin); 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mHasBaselineAlignedChild) { 441725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() != GONE) { 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LayoutParams params = (LayoutParams) child.getLayoutParams(); 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project alignBaseline(child, params); 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != ignore || verticalGravity) { 448725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy left = Math.min(left, params.mLeft - params.leftMargin); 449725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy top = Math.min(top, params.mTop - params.topMargin); 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != ignore || horizontalGravity) { 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project right = Math.max(right, params.mRight + params.rightMargin); 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project bottom = Math.max(bottom, params.mBottom + params.bottomMargin); 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 460f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (isWrapContentWidth) { 461a1f3e4aef19882b4b81075d9205bd363efe1e66dRomain Guy // Width already has left padding in it since it was calculated by looking at 4629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the right of each child view 4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project width += mPaddingRight; 4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mLayoutParams.width >= 0) { 4669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project width = Math.max(width, mLayoutParams.width); 4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project width = Math.max(width, getSuggestedMinimumWidth()); 4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project width = resolveSize(width, widthMeasureSpec); 471f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 472f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (offsetHorizontalAxis) { 473d10a576791675628a014c0488c3d054371d4d63aRomain Guy for (int i = 0; i < count; i++) { 474f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy View child = getChildAt(i); 475f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (child.getVisibility() != GONE) { 476f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy LayoutParams params = (LayoutParams) child.getLayoutParams(); 477f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy final int[] rules = params.getRules(); 478f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (rules[CENTER_IN_PARENT] != 0 || rules[CENTER_HORIZONTAL] != 0) { 479f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy centerHorizontal(child, params, width); 48042460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy } else if (rules[ALIGN_PARENT_RIGHT] != 0) { 48142460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy final int childWidth = child.getMeasuredWidth(); 48242460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy params.mLeft = width - mPaddingRight - childWidth; 48342460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy params.mRight = params.mLeft + childWidth; 484f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 485f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 486f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 487f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 4889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 489f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 490f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (isWrapContentHeight) { 491a1f3e4aef19882b4b81075d9205bd363efe1e66dRomain Guy // Height already has top padding in it since it was calculated by looking at 4929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the bottom of each child view 4939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height += mPaddingBottom; 4949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mLayoutParams.height >= 0) { 4969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = Math.max(height, mLayoutParams.height); 4979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = Math.max(height, getSuggestedMinimumHeight()); 5009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = resolveSize(height, heightMeasureSpec); 501f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 502f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (offsetVerticalAxis) { 503f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy for (int i = 0; i < count; i++) { 504f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy View child = getChildAt(i); 505f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (child.getVisibility() != GONE) { 506f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy LayoutParams params = (LayoutParams) child.getLayoutParams(); 507f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy final int[] rules = params.getRules(); 508f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (rules[CENTER_IN_PARENT] != 0 || rules[CENTER_VERTICAL] != 0) { 509f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy centerVertical(child, params, height); 51042460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy } else if (rules[ALIGN_PARENT_BOTTOM] != 0) { 51142460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy final int childHeight = child.getMeasuredHeight(); 51242460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy params.mTop = height - mPaddingBottom - childHeight; 51342460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy params.mBottom = params.mTop + childHeight; 514f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 515f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 516f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 517f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 5189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (horizontalGravity || verticalGravity) { 5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selfBounds = mSelfBounds; 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selfBounds.set(mPaddingLeft, mPaddingTop, width - mPaddingRight, 5239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height - mPaddingBottom); 5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect contentBounds = mContentBounds; 526c0053223bedf33581b0830fb87be32c1f26e5372Fabrice Di Meglio final int layoutDirection = getResolvedLayoutDirection(); 5276a03640539405afbdefe72894759281b98aa6e6fFabrice Di Meglio Gravity.apply(mGravity, right - left, bottom - top, selfBounds, contentBounds, 528c0053223bedf33581b0830fb87be32c1f26e5372Fabrice Di Meglio layoutDirection); 5299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int horizontalOffset = contentBounds.left - left; 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int verticalOffset = contentBounds.top - top; 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (horizontalOffset != 0 || verticalOffset != 0) { 533725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 5359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() != GONE && child != ignore) { 5369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LayoutParams params = (LayoutParams) child.getLayoutParams(); 537d10a576791675628a014c0488c3d054371d4d63aRomain Guy if (horizontalGravity) { 538d10a576791675628a014c0488c3d054371d4d63aRomain Guy params.mLeft += horizontalOffset; 539d10a576791675628a014c0488c3d054371d4d63aRomain Guy params.mRight += horizontalOffset; 540d10a576791675628a014c0488c3d054371d4d63aRomain Guy } 541d10a576791675628a014c0488c3d054371d4d63aRomain Guy if (verticalGravity) { 542d10a576791675628a014c0488c3d054371d4d63aRomain Guy params.mTop += verticalOffset; 543d10a576791675628a014c0488c3d054371d4d63aRomain Guy params.mBottom += verticalOffset; 544d10a576791675628a014c0488c3d054371d4d63aRomain Guy } 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setMeasuredDimension(width, height); 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void alignBaseline(View child, LayoutParams params) { 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] rules = params.getRules(); 5559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int anchorBaseline = getRelatedViewBaseline(rules, ALIGN_BASELINE); 5569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorBaseline != -1) { 5589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LayoutParams anchorParams = getRelatedViewParams(rules, ALIGN_BASELINE); 5599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 5609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int offset = anchorParams.mTop + anchorBaseline; 5619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int baseline = child.getBaseline(); 5629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (baseline != -1) { 5639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offset -= baseline; 5649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = params.mBottom - params.mTop; 5669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mTop = offset; 5679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mBottom = params.mTop + height; 5689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mBaselineView == null) { 5729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mBaselineView = child; 5739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 5749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LayoutParams lp = (LayoutParams) mBaselineView.getLayoutParams(); 5759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (params.mTop < lp.mTop || (params.mTop == lp.mTop && params.mLeft < lp.mLeft)) { 5769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mBaselineView = child; 5779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Measure a child. The child should have left, top, right and bottom information 5839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * stored in its LayoutParams. If any of these values is -1 it means that the view 5849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * can extend up to the corresponding edge. 5859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param child Child to measure 5879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param params LayoutParams associated with child 5889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param myWidth Width of the the RelativeLayout 5899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param myHeight Height of the RelativeLayout 5909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 591725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private void measureChild(View child, LayoutParams params, int myWidth, int myHeight) { 5929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childWidthMeasureSpec = getChildMeasureSpec(params.mLeft, 5939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mRight, params.width, 5949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.leftMargin, params.rightMargin, 5959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPaddingLeft, mPaddingRight, 5969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project myWidth); 5979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childHeightMeasureSpec = getChildMeasureSpec(params.mTop, 5989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mBottom, params.height, 5999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.topMargin, params.bottomMargin, 6009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPaddingTop, mPaddingBottom, 6019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project myHeight); 6029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.measure(childWidthMeasureSpec, childHeightMeasureSpec); 6039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 605f782e60efc09f210643432f31b4c18026d7716d6Romain Guy private void measureChildHorizontal(View child, LayoutParams params, int myWidth, int myHeight) { 606956070383945db5f842ec05e507fd0233705738cRomain Guy int childWidthMeasureSpec = getChildMeasureSpec(params.mLeft, 607956070383945db5f842ec05e507fd0233705738cRomain Guy params.mRight, params.width, 608956070383945db5f842ec05e507fd0233705738cRomain Guy params.leftMargin, params.rightMargin, 609956070383945db5f842ec05e507fd0233705738cRomain Guy mPaddingLeft, mPaddingRight, 610956070383945db5f842ec05e507fd0233705738cRomain Guy myWidth); 611f782e60efc09f210643432f31b4c18026d7716d6Romain Guy int childHeightMeasureSpec; 612980a938c1c9a6a5791a8240e5a1e6638ab28dc77Romain Guy if (params.width == LayoutParams.MATCH_PARENT) { 613baac46339da03aed166e8a4240ad063caad019adRomain Guy childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(myHeight, MeasureSpec.EXACTLY); 614f782e60efc09f210643432f31b4c18026d7716d6Romain Guy } else { 615baac46339da03aed166e8a4240ad063caad019adRomain Guy childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(myHeight, MeasureSpec.AT_MOST); 616f782e60efc09f210643432f31b4c18026d7716d6Romain Guy } 617725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy child.measure(childWidthMeasureSpec, childHeightMeasureSpec); 618725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 619725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 6209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a measure spec that accounts for all of the constraints on this view. 6229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This includes size contstraints imposed by the RelativeLayout as well as 6239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the View's desired dimension. 6249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childStart The left or top field of the child's layout params 6269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childEnd The right or bottom field of the child's layout params 6279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childSize The child's desired size (the width or height field of 6289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the child's layout params) 6299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param startMargin The left or top margin 6309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param endMargin The right or bottom margin 6319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param startPadding mPaddingLeft or mPaddingTop 6329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param endPadding mPaddingRight or mPaddingBottom 6339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mySize The width or height of this view (the RelativeLayout) 6349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return MeasureSpec for the child 6359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int getChildMeasureSpec(int childStart, int childEnd, 6379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childSize, int startMargin, int endMargin, int startPadding, 6389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int endPadding, int mySize) { 6399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childSpecMode = 0; 6409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childSpecSize = 0; 6419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Figure out start and end bounds. 6439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int tempStart = childStart; 6449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int tempEnd = childEnd; 6459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the view did not express a layout constraint for an edge, use 6479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // view's margins and our padding 6489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (tempStart < 0) { 6499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project tempStart = startPadding + startMargin; 6509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (tempEnd < 0) { 6529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project tempEnd = mySize - endPadding - endMargin; 6539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Figure out maximum size available to this view 6569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int maxAvailable = tempEnd - tempStart; 6579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childStart >= 0 && childEnd >= 0) { 6599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Constraints fixed both edges, so child must be an exact size 6609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecMode = MeasureSpec.EXACTLY; 6619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecSize = maxAvailable; 6629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 6639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childSize >= 0) { 6649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Child wanted an exact size. Give as much as possible 6659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecMode = MeasureSpec.EXACTLY; 6669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (maxAvailable >= 0) { 6689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We have a maxmum size in this dimension. 6699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecSize = Math.min(maxAvailable, childSize); 6709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 6719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We can grow in this dimension. 6729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecSize = childSize; 6739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 674980a938c1c9a6a5791a8240e5a1e6638ab28dc77Romain Guy } else if (childSize == LayoutParams.MATCH_PARENT) { 6759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Child wanted to be as big as possible. Give all availble 6769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // space 6779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecMode = MeasureSpec.EXACTLY; 6789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecSize = maxAvailable; 6799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childSize == LayoutParams.WRAP_CONTENT) { 6809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Child wants to wrap content. Use AT_MOST 6819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to communicate available space if we know 6829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // our max size 6839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (maxAvailable >= 0) { 6849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We have a maxmum size in this dimension. 6859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecMode = MeasureSpec.AT_MOST; 6869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecSize = maxAvailable; 6879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 6889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We can grow in this dimension. Child can be as big as it 6899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // wants 6909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecMode = MeasureSpec.UNSPECIFIED; 6919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecSize = 0; 6929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return MeasureSpec.makeMeasureSpec(childSpecSize, childSpecMode); 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 699f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy private boolean positionChildHorizontal(View child, LayoutParams params, int myWidth, 700f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy boolean wrapContent) { 701f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 7029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] rules = params.getRules(); 7039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (params.mLeft < 0 && params.mRight >= 0) { 7059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Right is fixed, but left varies 7069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mLeft = params.mRight - child.getMeasuredWidth(); 7079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (params.mLeft >= 0 && params.mRight < 0) { 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Left is fixed, but right varies 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mRight = params.mLeft + child.getMeasuredWidth(); 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (params.mLeft < 0 && params.mRight < 0) { 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Both left and right vary 712f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (rules[CENTER_IN_PARENT] != 0 || rules[CENTER_HORIZONTAL] != 0) { 713f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (!wrapContent) { 714f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy centerHorizontal(child, params, myWidth); 715f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } else { 716f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy params.mLeft = mPaddingLeft + params.leftMargin; 717f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy params.mRight = params.mLeft + child.getMeasuredWidth(); 718f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 719f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy return true; 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mLeft = mPaddingLeft + params.leftMargin; 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mRight = params.mLeft + child.getMeasuredWidth(); 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 72542460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy return rules[ALIGN_PARENT_RIGHT] != 0; 726725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 727725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 728f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy private boolean positionChildVertical(View child, LayoutParams params, int myHeight, 729f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy boolean wrapContent) { 730f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 731725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy int[] rules = params.getRules(); 7329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (params.mTop < 0 && params.mBottom >= 0) { 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Bottom is fixed, but top varies 7359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mTop = params.mBottom - child.getMeasuredHeight(); 7369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (params.mTop >= 0 && params.mBottom < 0) { 7379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Top is fixed, but bottom varies 7389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mBottom = params.mTop + child.getMeasuredHeight(); 7399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (params.mTop < 0 && params.mBottom < 0) { 7409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Both top and bottom vary 741f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (rules[CENTER_IN_PARENT] != 0 || rules[CENTER_VERTICAL] != 0) { 742f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (!wrapContent) { 743f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy centerVertical(child, params, myHeight); 744f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } else { 745f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy params.mTop = mPaddingTop + params.topMargin; 746f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy params.mBottom = params.mTop + child.getMeasuredHeight(); 747f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 748f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy return true; 7499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 7509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mTop = mPaddingTop + params.topMargin; 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mBottom = params.mTop + child.getMeasuredHeight(); 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 75442460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy return rules[ALIGN_PARENT_BOTTOM] != 0; 7559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 757725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private void applyHorizontalSizeRules(LayoutParams childParams, int myWidth) { 7589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] rules = childParams.getRules(); 7599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RelativeLayout.LayoutParams anchorParams; 7609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // -1 indicated a "soft requirement" in that direction. For example: 7629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // left=10, right=-1 means the view must start at 10, but can go as far as it wants to the right 7639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // left =-1, right=10 means the view must end at 10, but can go as far as it wants to the left 7649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // left=10, right=20 means the left and right ends are both fixed 7659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mLeft = -1; 7669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mRight = -1; 7679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, LEFT_OF); 7699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 7709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mRight = anchorParams.mLeft - (anchorParams.leftMargin + 7719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.rightMargin); 7729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[LEFT_OF] != 0) { 7739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (myWidth >= 0) { 7749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mRight = myWidth - mPaddingRight - childParams.rightMargin; 7759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 7769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME uh oh... 7779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, RIGHT_OF); 7819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 7829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mLeft = anchorParams.mRight + (anchorParams.rightMargin + 7839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.leftMargin); 7849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[RIGHT_OF] != 0) { 7859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mLeft = mPaddingLeft + childParams.leftMargin; 7869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, ALIGN_LEFT); 7899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 7909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mLeft = anchorParams.mLeft + childParams.leftMargin; 7919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[ALIGN_LEFT] != 0) { 7929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mLeft = mPaddingLeft + childParams.leftMargin; 7939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, ALIGN_RIGHT); 7969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 7979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mRight = anchorParams.mRight - childParams.rightMargin; 7989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[ALIGN_RIGHT] != 0) { 7999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (myWidth >= 0) { 8009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mRight = myWidth - mPaddingRight - childParams.rightMargin; 8019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 8029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME uh oh... 8039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (0 != rules[ALIGN_PARENT_LEFT]) { 8079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mLeft = mPaddingLeft + childParams.leftMargin; 8089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (0 != rules[ALIGN_PARENT_RIGHT]) { 8119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (myWidth >= 0) { 8129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mRight = myWidth - mPaddingRight - childParams.rightMargin; 8139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 8149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME uh oh... 8159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 817725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 818725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 819725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private void applyVerticalSizeRules(LayoutParams childParams, int myHeight) { 820725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy int[] rules = childParams.getRules(); 821725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy RelativeLayout.LayoutParams anchorParams; 8229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mTop = -1; 8249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mBottom = -1; 8259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, ABOVE); 8279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 8289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mBottom = anchorParams.mTop - (anchorParams.topMargin + 8299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.bottomMargin); 8309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[ABOVE] != 0) { 8319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (myHeight >= 0) { 8329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mBottom = myHeight - mPaddingBottom - childParams.bottomMargin; 8339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 8349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME uh oh... 8359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, BELOW); 8399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 8409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mTop = anchorParams.mBottom + (anchorParams.bottomMargin + 8419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.topMargin); 8429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[BELOW] != 0) { 8439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mTop = mPaddingTop + childParams.topMargin; 8449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, ALIGN_TOP); 8479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 8489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mTop = anchorParams.mTop + childParams.topMargin; 8499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[ALIGN_TOP] != 0) { 8509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mTop = mPaddingTop + childParams.topMargin; 8519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, ALIGN_BOTTOM); 8549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 8559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mBottom = anchorParams.mBottom - childParams.bottomMargin; 8569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[ALIGN_BOTTOM] != 0) { 8579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (myHeight >= 0) { 8589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mBottom = myHeight - mPaddingBottom - childParams.bottomMargin; 8599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 8609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME uh oh... 8619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (0 != rules[ALIGN_PARENT_TOP]) { 8659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mTop = mPaddingTop + childParams.topMargin; 8669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (0 != rules[ALIGN_PARENT_BOTTOM]) { 8699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (myHeight >= 0) { 8709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mBottom = myHeight - mPaddingBottom - childParams.bottomMargin; 8719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 8729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME uh oh... 8739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (rules[ALIGN_BASELINE] != 0) { 8779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mHasBaselineAlignedChild = true; 8789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View getRelatedView(int[] rules, int relation) { 8829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int id = rules[relation]; 8839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (id != 0) { 8841ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy DependencyGraph.Node node = mGraph.mKeyNodes.get(id); 885a0fd1d742d8edaf6c7e79bdd16a9b0c44fda4503Romain Guy if (node == null) return null; 886a0fd1d742d8edaf6c7e79bdd16a9b0c44fda4503Romain Guy View v = node.view; 8879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Find the first non-GONE view up the chain 8899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while (v.getVisibility() == View.GONE) { 8909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules = ((LayoutParams) v.getLayoutParams()).getRules(); 8911ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy node = mGraph.mKeyNodes.get((rules[relation])); 892a0fd1d742d8edaf6c7e79bdd16a9b0c44fda4503Romain Guy if (node == null) return null; 893a0fd1d742d8edaf6c7e79bdd16a9b0c44fda4503Romain Guy v = node.view; 8949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return v; 8979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 9009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private LayoutParams getRelatedViewParams(int[] rules, int relation) { 9039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getRelatedView(rules, relation); 9049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) { 9059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewGroup.LayoutParams params = v.getLayoutParams(); 9069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (params instanceof LayoutParams) { 9079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (LayoutParams) v.getLayoutParams(); 9089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 9119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int getRelatedViewBaseline(int[] rules, int relation) { 9149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getRelatedView(rules, relation); 9159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) { 9169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return v.getBaseline(); 9179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return -1; 9199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void centerHorizontal(View child, LayoutParams params, int myWidth) { 9229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childWidth = child.getMeasuredWidth(); 9239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int left = (myWidth - childWidth) / 2; 9249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mLeft = left; 9269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mRight = left + childWidth; 9279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void centerVertical(View child, LayoutParams params, int myHeight) { 9309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childHeight = child.getMeasuredHeight(); 9319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int top = (myHeight - childHeight) / 2; 9329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mTop = top; 9349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mBottom = top + childHeight; 9359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 9389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 9399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The layout has actually already been performed and the positions 9409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // cached. Apply the cached values to the children. 9419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 9429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 9449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 9459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() != GONE) { 9469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RelativeLayout.LayoutParams st = 9479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (RelativeLayout.LayoutParams) child.getLayoutParams(); 9489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.layout(st.mLeft, st.mTop, st.mRight, st.mBottom); 9499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 9559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams generateLayoutParams(AttributeSet attrs) { 9569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new RelativeLayout.LayoutParams(getContext(), attrs); 9579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns a set of layout parameters with a width of 9619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup.LayoutParams#WRAP_CONTENT}, 9629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * a height of {@link android.view.ViewGroup.LayoutParams#WRAP_CONTENT} and no spanning. 9639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 9659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateDefaultLayoutParams() { 9669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT); 9679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Override to allow type-checking of LayoutParams. 9709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 9719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 9729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof RelativeLayout.LayoutParams; 9739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 9769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 9779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(p); 9789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 98075986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov @Override 98175986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) { 98275986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov if (mTopToBottomLeftToRightSet == null) { 98375986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov mTopToBottomLeftToRightSet = new TreeSet<View>(new TopToBottomLeftToRightComparator()); 98475986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 98575986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov 98675986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov // sort children top-to-bottom and left-to-right 98775986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov for (int i = 0, count = getChildCount(); i < count; i++) { 98875986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov mTopToBottomLeftToRightSet.add(getChildAt(i)); 98975986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 99075986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov 99175986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov for (View view : mTopToBottomLeftToRightSet) { 9920b0a41d8e26eaf0f1d9d922621494daf40964a9aSvetoslav Ganov if (view.getVisibility() == View.VISIBLE 9930b0a41d8e26eaf0f1d9d922621494daf40964a9aSvetoslav Ganov && view.dispatchPopulateAccessibilityEvent(event)) { 99475986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov mTopToBottomLeftToRightSet.clear(); 99575986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov return true; 99675986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 99775986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 99875986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov 99975986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov mTopToBottomLeftToRightSet.clear(); 100075986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov return false; 100175986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 100275986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov 10038a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 10048a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityEvent(AccessibilityEvent event) { 10058a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityEvent(event); 10068a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov event.setClassName(RelativeLayout.class.getName()); 10078a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 10088a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 10098a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 10108a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { 10118a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityNodeInfo(info); 10128a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov info.setClassName(RelativeLayout.class.getName()); 10138a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 10148a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 101575986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov /** 101675986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov * Compares two views in left-to-right and top-to-bottom fashion. 101775986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov */ 101875986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov private class TopToBottomLeftToRightComparator implements Comparator<View> { 101975986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov public int compare(View first, View second) { 102075986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov // top - bottom 102175986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov int topDifference = first.getTop() - second.getTop(); 102275986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov if (topDifference != 0) { 102375986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov return topDifference; 102475986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 102575986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov // left - right 102675986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov int leftDifference = first.getLeft() - second.getLeft(); 102775986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov if (leftDifference != 0) { 102875986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov return leftDifference; 102975986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 103075986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov // break tie by height 103175986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov int heightDiference = first.getHeight() - second.getHeight(); 103275986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov if (heightDiference != 0) { 103375986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov return heightDiference; 103475986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 103575986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov // break tie by width 103675986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov int widthDiference = first.getWidth() - second.getWidth(); 103775986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov if (widthDiference != 0) { 103875986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov return widthDiference; 103975986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 104075986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov return 0; 104175986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 104275986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 104375986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov 10449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Per-child layout information associated with RelativeLayout. 10469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignWithParentIfMissing 10489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_toLeftOf 10499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_toRightOf 10509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_above 10519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_below 10529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignBaseline 10539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignLeft 10549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignTop 10559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignRight 10569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignBottom 10579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignParentLeft 10589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignParentTop 10599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignParentRight 10609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignParentBottom 10619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_centerInParent 10629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_centerHorizontal 10639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_centerVertical 10649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class LayoutParams extends ViewGroup.MarginLayoutParams { 1066bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "layout", resolveId = true, indexMapping = { 1067c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ABOVE, to = "above"), 1068c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_BASELINE, to = "alignBaseline"), 1069c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_BOTTOM, to = "alignBottom"), 1070c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_LEFT, to = "alignLeft"), 1071c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_PARENT_BOTTOM, to = "alignParentBottom"), 1072c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_PARENT_LEFT, to = "alignParentLeft"), 1073c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_PARENT_RIGHT, to = "alignParentRight"), 1074c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_PARENT_TOP, to = "alignParentTop"), 1075c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_RIGHT, to = "alignRight"), 1076c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_TOP, to = "alignTop"), 1077c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = BELOW, to = "below"), 1078c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = CENTER_HORIZONTAL, to = "centerHorizontal"), 1079c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = CENTER_IN_PARENT, to = "center"), 1080c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = CENTER_VERTICAL, to = "centerVertical"), 1081c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = LEFT_OF, to = "leftOf"), 1082c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = RIGHT_OF, to = "rightOf") 1083105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project }, mapping = { 1084105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project @ViewDebug.IntToString(from = TRUE, to = "true"), 1085a1f3e4aef19882b4b81075d9205bd363efe1e66dRomain Guy @ViewDebug.IntToString(from = 0, to = "false/NO_ID") 1086105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project }) 10879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int[] mRules = new int[VERB_COUNT]; 1088c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project 10899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLeft, mTop, mRight, mBottom; 10909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When true, uses the parent as the anchor if the anchor doesn't exist or if 10939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the anchor's visibility is GONE. 10949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1095bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "layout") 10969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean alignWithParent; 10979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(Context c, AttributeSet attrs) { 10999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(c, attrs); 11009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = c.obtainStyledAttributes(attrs, 11029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.RelativeLayout_Layout); 11039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] rules = mRules; 11059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int N = a.getIndexCount(); 11079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < N; i++) { 11089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int attr = a.getIndex(i); 11099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (attr) { 11109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignWithParentIfMissing: 11119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project alignWithParent = a.getBoolean(attr, false); 11129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 11139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_toLeftOf: 11149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[LEFT_OF] = a.getResourceId(attr, 0); 11159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 11169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_toRightOf: 11179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[RIGHT_OF] = a.getResourceId(attr, 0); 11189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 11199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_above: 11209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ABOVE] = a.getResourceId(attr, 0); 11219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 11229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_below: 11239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[BELOW] = a.getResourceId(attr, 0); 11249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 11259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignBaseline: 11269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_BASELINE] = a.getResourceId(attr, 0); 11279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 11289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignLeft: 11299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_LEFT] = a.getResourceId(attr, 0); 11309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 11319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignTop: 11329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_TOP] = a.getResourceId(attr, 0); 11339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 11349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignRight: 11359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_RIGHT] = a.getResourceId(attr, 0); 11369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 11379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignBottom: 11389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_BOTTOM] = a.getResourceId(attr, 0); 11399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 11409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignParentLeft: 11419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_PARENT_LEFT] = a.getBoolean(attr, false) ? TRUE : 0; 11429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 11439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignParentTop: 11449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_PARENT_TOP] = a.getBoolean(attr, false) ? TRUE : 0; 11459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 11469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignParentRight: 11479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_PARENT_RIGHT] = a.getBoolean(attr, false) ? TRUE : 0; 11489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 11499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignParentBottom: 11509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_PARENT_BOTTOM] = a.getBoolean(attr, false) ? TRUE : 0; 11519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 11529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_centerInParent: 11539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[CENTER_IN_PARENT] = a.getBoolean(attr, false) ? TRUE : 0; 11549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 11559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_centerHorizontal: 11569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[CENTER_HORIZONTAL] = a.getBoolean(attr, false) ? TRUE : 0; 11579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 11589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_centerVertical: 11599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[CENTER_VERTICAL] = a.getBoolean(attr, false) ? TRUE : 0; 11609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 11619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 11659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h) { 11689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 11699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 11739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams source) { 11759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 11769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 11809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.MarginLayoutParams source) { 11829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 11839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 11869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String debug(String output) { 11879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return output + "ViewGroup.LayoutParams={ width=" + sizeToString(width) + 11889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ", height=" + sizeToString(height) + " }"; 11899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Adds a layout rule to be interpreted by the RelativeLayout. This 11939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * method should only be used for constraints that don't refer to another sibling 11949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (e.g., CENTER_IN_PARENT) or take a boolean value ({@link RelativeLayout#TRUE} 11959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * for true or - for false). To specify a verb that takes a subject, use 11969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #addRule(int, int)} instead. 11979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param verb One of the verbs defined by 11999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.RelativeLayout RelativeLayout}, such as 12009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * ALIGN_WITH_PARENT_LEFT. 12019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #addRule(int, int) 12029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addRule(int verb) { 12049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRules[verb] = TRUE; 12059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Adds a layout rule to be interpreted by the RelativeLayout. Use this for 12099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * verbs that take a target, such as a sibling (ALIGN_RIGHT) or a boolean 12109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * value (VISIBLE). 12119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param verb One of the verbs defined by 12139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.RelativeLayout RelativeLayout}, such as 12149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * ALIGN_WITH_PARENT_LEFT. 12159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param anchor The id of another view to use as an anchor, 12169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * or a boolean value(represented as {@link RelativeLayout#TRUE}) 12179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * for true or 0 for false). For verbs that don't refer to another sibling 12189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (for example, ALIGN_WITH_PARENT_BOTTOM) just use -1. 12199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #addRule(int) 12209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addRule(int verb, int anchor) { 12229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRules[verb] = anchor; 12239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Retrieves a complete list of all supported rules, where the index is the rule 12279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * verb, and the element value is the value specified, or "false" if it was never 12289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * set. 12299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the supported rules 12319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #addRule(int, int) 12329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int[] getRules() { 12349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mRules; 12359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1237725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1238725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private static class DependencyGraph { 1239725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 12401ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy * List of all views in the graph. 12411ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy */ 12421ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy private ArrayList<Node> mNodes = new ArrayList<Node>(); 12431ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy 12441ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy /** 1245725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * List of nodes in the graph. Each node is identified by its 1246725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * view id (see View#getId()). 1247725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 12481ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy private SparseArray<Node> mKeyNodes = new SparseArray<Node>(); 1249725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1250725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1251725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * Temporary data structure used to build the list of roots 1252725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * for this graph. 1253725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1254bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy private ArrayDeque<Node> mRoots = new ArrayDeque<Node>(); 1255725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1256725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1257725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * Clears the graph. 1258725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1259725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy void clear() { 12601ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final ArrayList<Node> nodes = mNodes; 1261725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final int count = nodes.size(); 1262725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1263725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 12641ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy nodes.get(i).release(); 1265725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1266725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy nodes.clear(); 1267725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 12681ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy mKeyNodes.clear(); 1269725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy mRoots.clear(); 1270725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1271725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1272725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1273725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * Adds a view to the graph. 1274725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * 1275725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * @param view The view to be added as a node to the graph. 1276725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1277725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy void add(View view) { 12781ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final int id = view.getId(); 12791ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final Node node = Node.acquire(view); 12801ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy 12811ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy if (id != View.NO_ID) { 12821ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy mKeyNodes.put(id, node); 12831ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy } 12841ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy 12851ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy mNodes.add(node); 1286725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1287725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1288725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1289725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * Builds a sorted list of views. The sorting order depends on the dependencies 1290725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * between the view. For instance, if view C needs view A to be processed first 1291725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * and view A needs view B to be processed first, the dependency graph 1292725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * is: B -> A -> C. The sorted array will contain views B, A and C in this order. 1293725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * 1294725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * @param sorted The sorted list of views. The length of this array must 1295725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * be equal to getChildCount(). 1296725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * @param rules The list of rules to take into account. 1297725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1298725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy void getSortedViews(View[] sorted, int... rules) { 1299bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy final ArrayDeque<Node> roots = findRoots(rules); 1300725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy int index = 0; 1301725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1302bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy Node node; 1303bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy while ((node = roots.pollLast()) != null) { 1304725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final View view = node.view; 1305725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final int key = view.getId(); 1306725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1307725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy sorted[index++] = view; 1308725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1309bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy final HashMap<Node, DependencyGraph> dependents = node.dependents; 1310bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy for (Node dependent : dependents.keySet()) { 1311725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final SparseArray<Node> dependencies = dependent.dependencies; 1312725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1313725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy dependencies.remove(key); 1314725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (dependencies.size() == 0) { 1315725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy roots.add(dependent); 1316725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1317725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1318725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1319725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1320725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (index < sorted.length) { 1321725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy throw new IllegalStateException("Circular dependencies cannot exist" 1322725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy + " in RelativeLayout"); 1323725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1324725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1325725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1326725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1327725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * Finds the roots of the graph. A root is a node with no dependency and 1328725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * with [0..n] dependents. 1329725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * 1330725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * @param rulesFilter The list of rules to consider when building the 1331725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * dependencies 1332725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * 1333725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * @return A list of node, each being a root of the graph 1334725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1335bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy private ArrayDeque<Node> findRoots(int[] rulesFilter) { 13361ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final SparseArray<Node> keyNodes = mKeyNodes; 13371ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final ArrayList<Node> nodes = mNodes; 1338725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final int count = nodes.size(); 1339725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1340725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // Find roots can be invoked several times, so make sure to clear 1341725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // all dependents and dependencies before running the algorithm 1342725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 13431ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final Node node = nodes.get(i); 1344725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy node.dependents.clear(); 1345725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy node.dependencies.clear(); 1346725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1347725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1348725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // Builds up the dependents and dependencies for each node of the graph 1349725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 13501ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final Node node = nodes.get(i); 1351725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1352725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final LayoutParams layoutParams = (LayoutParams) node.view.getLayoutParams(); 1353725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final int[] rules = layoutParams.mRules; 1354725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final int rulesCount = rulesFilter.length; 1355725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1356725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // Look only the the rules passed in parameter, this way we build only the 1357725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // dependencies for a specific set of rules 1358725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int j = 0; j < rulesCount; j++) { 1359725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final int rule = rules[rulesFilter[j]]; 1360725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (rule > 0) { 1361725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // The node this node depends on 13621ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final Node dependency = keyNodes.get(rule); 1363da3003e1d71d66a1c936489025f8db314a2a4588Romain Guy // Skip unknowns and self dependencies 1364da3003e1d71d66a1c936489025f8db314a2a4588Romain Guy if (dependency == null || dependency == node) { 1365b8f8de85160b0a072158b45320e9fc2adba545f5Romain Guy continue; 1366b8f8de85160b0a072158b45320e9fc2adba545f5Romain Guy } 1367725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // Add the current node as a dependent 1368bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy dependency.dependents.put(node, this); 1369725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // Add a dependency to the current node 1370725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy node.dependencies.put(rule, dependency); 1371725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1372725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1373725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1374725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1375bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy final ArrayDeque<Node> roots = mRoots; 1376725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy roots.clear(); 1377725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1378725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // Finds all the roots in the graph: all nodes with no dependencies 1379725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 13801ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final Node node = nodes.get(i); 1381bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy if (node.dependencies.size() == 0) roots.addLast(node); 1382725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1383725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1384725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy return roots; 1385725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1386725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1387725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1388725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * Prints the dependency graph for the specified rules. 1389725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * 1390725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * @param resources The context's resources to print the ids. 1391725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * @param rules The list of rules to take into account. 1392725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1393725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy void log(Resources resources, int... rules) { 1394bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy final ArrayDeque<Node> roots = findRoots(rules); 1395725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (Node node : roots) { 1396725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy printNode(resources, node); 1397725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1398725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1399725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 14009fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy static void printViewId(Resources resources, View view) { 1401725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (view.getId() != View.NO_ID) { 1402725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy d(LOG_TAG, resources.getResourceEntryName(view.getId())); 1403725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } else { 1404725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy d(LOG_TAG, "NO_ID"); 1405725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1406725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1407725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1408725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private static void appendViewId(Resources resources, Node node, StringBuilder buffer) { 1409725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (node.view.getId() != View.NO_ID) { 1410725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy buffer.append(resources.getResourceEntryName(node.view.getId())); 1411725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } else { 1412725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy buffer.append("NO_ID"); 1413725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1414725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1415725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1416725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private static void printNode(Resources resources, Node node) { 1417725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (node.dependents.size() == 0) { 1418725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy printViewId(resources, node.view); 1419725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } else { 1420bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy for (Node dependent : node.dependents.keySet()) { 1421725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy StringBuilder buffer = new StringBuilder(); 1422725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy appendViewId(resources, node, buffer); 1423725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy printdependents(resources, dependent, buffer); 1424725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1425725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1426725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1427725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1428725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private static void printdependents(Resources resources, Node node, StringBuilder buffer) { 1429725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy buffer.append(" -> "); 1430725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy appendViewId(resources, node, buffer); 1431725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1432725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (node.dependents.size() == 0) { 1433725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy d(LOG_TAG, buffer.toString()); 1434725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } else { 1435bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy for (Node dependent : node.dependents.keySet()) { 1436725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy StringBuilder subBuffer = new StringBuilder(buffer); 1437725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy printdependents(resources, dependent, subBuffer); 1438725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1439725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1440725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1441725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1442725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1443725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * A node in the dependency graph. A node is a view, its list of dependencies 1444725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * and its list of dependents. 1445725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * 1446725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * A node with no dependent is considered a root of the graph. 1447725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1448725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy static class Node implements Poolable<Node> { 1449725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1450725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * The view representing this node in the layout. 1451725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1452725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy View view; 1453725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1454725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1455725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * The list of dependents for this node; a dependent is a node 1456725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * that needs this node to be processed first. 1457725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1458bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy final HashMap<Node, DependencyGraph> dependents = new HashMap<Node, DependencyGraph>(); 1459725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1460725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1461725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * The list of dependencies for this node. 1462725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1463725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final SparseArray<Node> dependencies = new SparseArray<Node>(); 1464725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1465725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /* 1466725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * START POOL IMPLEMENTATION 1467725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1468baac46339da03aed166e8a4240ad063caad019adRomain Guy // The pool is static, so all nodes instances are shared across 1469baac46339da03aed166e8a4240ad063caad019adRomain Guy // activities, that's why we give it a rather high limit 1470baac46339da03aed166e8a4240ad063caad019adRomain Guy private static final int POOL_LIMIT = 100; 1471725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private static final Pool<Node> sPool = Pools.synchronizedPool( 1472725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy Pools.finitePool(new PoolableManager<Node>() { 1473725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy public Node newInstance() { 1474725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy return new Node(); 1475725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1476725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1477725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy public void onAcquired(Node element) { 1478725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1479725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1480725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy public void onReleased(Node element) { 1481725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1482725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy }, POOL_LIMIT) 1483725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy ); 1484725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1485725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private Node mNext; 14868643aa0179e598e78d938c59035389054535a229Svetoslav Ganov private boolean mIsPooled; 1487725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1488725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy public void setNextPoolable(Node element) { 1489725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy mNext = element; 1490725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1491725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1492725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy public Node getNextPoolable() { 1493725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy return mNext; 1494725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1495725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 14968643aa0179e598e78d938c59035389054535a229Svetoslav Ganov public boolean isPooled() { 14978643aa0179e598e78d938c59035389054535a229Svetoslav Ganov return mIsPooled; 14988643aa0179e598e78d938c59035389054535a229Svetoslav Ganov } 14998643aa0179e598e78d938c59035389054535a229Svetoslav Ganov 15008643aa0179e598e78d938c59035389054535a229Svetoslav Ganov public void setPooled(boolean isPooled) { 15018643aa0179e598e78d938c59035389054535a229Svetoslav Ganov mIsPooled = isPooled; 15028643aa0179e598e78d938c59035389054535a229Svetoslav Ganov } 15038643aa0179e598e78d938c59035389054535a229Svetoslav Ganov 1504725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy static Node acquire(View view) { 1505725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final Node node = sPool.acquire(); 1506725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy node.view = view; 1507725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1508725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy return node; 1509725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1510725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1511725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy void release() { 1512725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy view = null; 1513725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy dependents.clear(); 1514725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy dependencies.clear(); 1515725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1516725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy sPool.release(this); 1517725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1518725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /* 1519725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * END POOL IMPLEMENTATION 1520725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1521725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1522725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 15239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1524