RelativeLayout.java revision abae2a1b891772d36d8f781adfcc8969e551691f
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; 33abae2a1b891772d36d8f781adfcc8969e551691fSvetoslav Ganovimport android.util.Pools.SimplePool; 346a03640539405afbdefe72894759281b98aa6e6fFabrice Di Meglioimport android.util.SparseArray; 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.Gravity; 3675986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganovimport android.view.View; 37c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Projectimport android.view.ViewDebug; 3875986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganovimport android.view.ViewGroup; 3975986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganovimport android.view.accessibility.AccessibilityEvent; 408a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganovimport android.view.accessibility.AccessibilityNodeInfo; 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.widget.RemoteViews.RemoteView; 426a03640539405afbdefe72894759281b98aa6e6fFabrice Di Meglio 436a03640539405afbdefe72894759281b98aa6e6fFabrice Di Meglioimport static android.util.Log.d; 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A Layout where the positions of the children can be described in relation to each other or to the 47520c4204fb9d4f2a7a79dcb5d171e681b7bc6a07Romain Guy * parent. 48a1f3e4aef19882b4b81075d9205bd363efe1e66dRomain Guy * 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p> 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that you cannot have a circular dependency between the size of the RelativeLayout and the 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position of its children. For example, you cannot have a RelativeLayout whose height is set to 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup.LayoutParams#WRAP_CONTENT WRAP_CONTENT} and a child set to 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #ALIGN_PARENT_BOTTOM}. 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * </p> 55a1f3e4aef19882b4b81075d9205bd363efe1e66dRomain Guy * 564c359b76f9a030f92a302ba74a528faa170bad4eScott Main * <p>See the <a href="{@docRoot}guide/topics/ui/layout/relative.html">Relative 574c359b76f9a030f92a302ba74a528faa170bad4eScott Main * Layout</a> guide.</p> 5841ec65355bd6ded652769725b276d47c54a0d913Scott Main * 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p> 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Also see {@link android.widget.RelativeLayout.LayoutParams RelativeLayout.LayoutParams} for 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout attributes 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * </p> 63a1f3e4aef19882b4b81075d9205bd363efe1e66dRomain Guy * 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_gravity 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_ignoreGravity 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project@RemoteView 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic class RelativeLayout extends ViewGroup { 69725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private static final String LOG_TAG = "RelativeLayout"; 70725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 71725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private static final boolean DEBUG_GRAPH = false; 72725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRUE = -1; 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's right edge with another child's left edge. 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int LEFT_OF = 0; 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's left edge with another child's right edge. 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int RIGHT_OF = 1; 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's bottom edge with another child's top edge. 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ABOVE = 2; 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's top edge with another child's bottom edge. 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int BELOW = 3; 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's baseline with another child's baseline. 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_BASELINE = 4; 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's left edge with another child's left edge. 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_LEFT = 5; 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's top edge with another child's top edge. 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_TOP = 6; 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's right edge with another child's right edge. 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_RIGHT = 7; 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's bottom edge with another child's bottom edge. 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_BOTTOM = 8; 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns the child's left edge with its RelativeLayout 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * parent's left edge. 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_PARENT_LEFT = 9; 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns the child's top edge with its RelativeLayout 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * parent's top edge. 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_PARENT_TOP = 10; 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns the child's right edge with its RelativeLayout 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * parent's right edge. 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_PARENT_RIGHT = 11; 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns the child's bottom edge with its RelativeLayout 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * parent's bottom edge. 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_PARENT_BOTTOM = 12; 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that centers the child with respect to the bounds of its 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * RelativeLayout parent. 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int CENTER_IN_PARENT = 13; 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that centers the child horizontally with respect to the 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bounds of its RelativeLayout parent. 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int CENTER_HORIZONTAL = 14; 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that centers the child vertically with respect to the 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bounds of its RelativeLayout parent. 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int CENTER_VERTICAL = 15; 149f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio /** 150f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * Rule that aligns a child's end edge with another child's start edge. 151f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio */ 152f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio public static final int START_OF = 16; 153f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio /** 154f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * Rule that aligns a child's start edge with another child's end edge. 155f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio */ 156f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio public static final int END_OF = 17; 157f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio /** 158f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * Rule that aligns a child's start edge with another child's start edge. 159f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio */ 160f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio public static final int ALIGN_START = 18; 161f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio /** 162f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * Rule that aligns a child's end edge with another child's end edge. 163f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio */ 164f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio public static final int ALIGN_END = 19; 165f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio /** 166f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * Rule that aligns the child's start edge with its RelativeLayout 167f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * parent's start edge. 168f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio */ 169f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio public static final int ALIGN_PARENT_START = 20; 170f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio /** 171f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * Rule that aligns the child's end edge with its RelativeLayout 172f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * parent's end edge. 173f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio */ 174f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio public static final int ALIGN_PARENT_END = 21; 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 176f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio private static final int VERB_COUNT = 22; 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 178bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy 179bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy private static final int[] RULES_VERTICAL = { 180bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy ABOVE, BELOW, ALIGN_BASELINE, ALIGN_TOP, ALIGN_BOTTOM 181bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy }; 182bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy 183bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy private static final int[] RULES_HORIZONTAL = { 184f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio LEFT_OF, RIGHT_OF, ALIGN_LEFT, ALIGN_RIGHT, START_OF, END_OF, ALIGN_START, ALIGN_END 185bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy }; 186bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View mBaselineView = null; 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mHasBaselineAlignedChild; 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 190f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio private int mGravity = Gravity.START | Gravity.TOP; 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final Rect mContentBounds = new Rect(); 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final Rect mSelfBounds = new Rect(); 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mIgnoreGravity; 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 195725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private SortedSet<View> mTopToBottomLeftToRightSet = null; 196725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 197725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private boolean mDirtyHierarchy; 198725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private View[] mSortedHorizontalChildren = new View[0]; 199725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private View[] mSortedVerticalChildren = new View[0]; 200725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private final DependencyGraph mGraph = new DependencyGraph(); 20175986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov 2029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public RelativeLayout(Context context) { 2039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context); 2049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public RelativeLayout(Context context, AttributeSet attrs) { 2079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, attrs); 2089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initFromAttributes(context, attrs); 2099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public RelativeLayout(Context context, AttributeSet attrs, int defStyle) { 2129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, attrs, defStyle); 2139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initFromAttributes(context, attrs); 2149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void initFromAttributes(Context context, AttributeSet attrs) { 2179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.RelativeLayout); 2189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIgnoreGravity = a.getResourceId(R.styleable.RelativeLayout_ignoreGravity, View.NO_ID); 2199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGravity = a.getInt(R.styleable.RelativeLayout_gravity, mGravity); 2209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 2219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 223e0a799a2ac1ca78e30fbac9e4e12a063425c08d3Patrick Dubroy @Override 224e0a799a2ac1ca78e30fbac9e4e12a063425c08d3Patrick Dubroy public boolean shouldDelayChildPressedState() { 225e0a799a2ac1ca78e30fbac9e4e12a063425c08d3Patrick Dubroy return false; 226e0a799a2ac1ca78e30fbac9e4e12a063425c08d3Patrick Dubroy } 227e0a799a2ac1ca78e30fbac9e4e12a063425c08d3Patrick Dubroy 2289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines which View is ignored when the gravity is applied. This setting has no 230f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * effect if the gravity is <code>Gravity.START | Gravity.TOP</code>. 2319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param viewId The id of the View to be ignored by gravity, or 0 if no View 2339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * should be ignored. 2349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setGravity(int) 2369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_ignoreGravity 2389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @android.view.RemotableViewMethod 2409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setIgnoreGravity(int viewId) { 2419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIgnoreGravity = viewId; 2429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2451018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne * Describes how the child views are positioned. 2461018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne * 2471018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne * @return the gravity. 2481018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne * 2491018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne * @see #setGravity(int) 2501018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne * @see android.view.Gravity 2511018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne * 2521018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne * @attr ref android.R.styleable#RelativeLayout_gravity 2531018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne */ 2541018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne public int getGravity() { 2551018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne return mGravity; 2561018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne } 2571018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne 2581018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne /** 2599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Describes how the child views are positioned. Defaults to 260f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * <code>Gravity.START | Gravity.TOP</code>. 2619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2621fec24e0fff95afaa90bbf811e9f8db659eb9324Adam Powell * <p>Note that since RelativeLayout considers the positioning of each child 2631fec24e0fff95afaa90bbf811e9f8db659eb9324Adam Powell * relative to one another to be significant, setting gravity will affect 2641fec24e0fff95afaa90bbf811e9f8db659eb9324Adam Powell * the positioning of all children as a single unit within the parent. 2651fec24e0fff95afaa90bbf811e9f8db659eb9324Adam Powell * This happens after children have been relatively positioned.</p> 2661fec24e0fff95afaa90bbf811e9f8db659eb9324Adam Powell * 2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param gravity See {@link android.view.Gravity} 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setHorizontalGravity(int) 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setVerticalGravity(int) 2719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_gravity 2739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @android.view.RemotableViewMethod 2759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setGravity(int gravity) { 2769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mGravity != gravity) { 2776a03640539405afbdefe72894759281b98aa6e6fFabrice Di Meglio if ((gravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) == 0) { 2789e3b002d3f9141d54948a65e0330fdcd09e75a30Fabrice Di Meglio gravity |= Gravity.START; 2799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((gravity & Gravity.VERTICAL_GRAVITY_MASK) == 0) { 2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project gravity |= Gravity.TOP; 2839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGravity = gravity; 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @android.view.RemotableViewMethod 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setHorizontalGravity(int horizontalGravity) { 2926a03640539405afbdefe72894759281b98aa6e6fFabrice Di Meglio final int gravity = horizontalGravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK; 2936a03640539405afbdefe72894759281b98aa6e6fFabrice Di Meglio if ((mGravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) != gravity) { 2946a03640539405afbdefe72894759281b98aa6e6fFabrice Di Meglio mGravity = (mGravity & ~Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) | gravity; 2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 2969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @android.view.RemotableViewMethod 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setVerticalGravity(int verticalGravity) { 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int gravity = verticalGravity & Gravity.VERTICAL_GRAVITY_MASK; 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != gravity) { 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGravity = (mGravity & ~Gravity.VERTICAL_GRAVITY_MASK) | gravity; 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getBaseline() { 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mBaselineView != null ? mBaselineView.getBaseline() : super.getBaseline(); 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 314725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy public void requestLayout() { 315725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy super.requestLayout(); 316725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy mDirtyHierarchy = true; 317725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 318725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 319725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private void sortChildren() { 320725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy int count = getChildCount(); 321725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (mSortedVerticalChildren.length != count) mSortedVerticalChildren = new View[count]; 322725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (mSortedHorizontalChildren.length != count) mSortedHorizontalChildren = new View[count]; 323725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 324725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final DependencyGraph graph = mGraph; 325725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy graph.clear(); 326725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 327725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 328725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final View child = getChildAt(i); 329725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy graph.add(child); 330725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 331725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 332725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (DEBUG_GRAPH) { 333725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy d(LOG_TAG, "=== Sorted vertical children"); 334bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy graph.log(getResources(), RULES_VERTICAL); 335725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy d(LOG_TAG, "=== Sorted horizontal children"); 336bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy graph.log(getResources(), RULES_HORIZONTAL); 337725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 338725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 339bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy graph.getSortedViews(mSortedVerticalChildren, RULES_VERTICAL); 340bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy graph.getSortedViews(mSortedHorizontalChildren, RULES_HORIZONTAL); 3419fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy 3429fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy if (DEBUG_GRAPH) { 3439fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy d(LOG_TAG, "=== Ordered list of vertical children"); 3449fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy for (View view : mSortedVerticalChildren) { 3459fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy DependencyGraph.printViewId(getResources(), view); 3469fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy } 3479fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy d(LOG_TAG, "=== Ordered list of horizontal children"); 3489fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy for (View view : mSortedHorizontalChildren) { 3499fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy DependencyGraph.printViewId(getResources(), view); 3509fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy } 3519fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy } 352725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 353725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 35442460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy // TODO: we need to find another way to implement RelativeLayout 35542460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy // This implementation cannot handle every case 356725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy @Override 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 358725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (mDirtyHierarchy) { 359725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy mDirtyHierarchy = false; 360725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy sortChildren(); 361725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 362725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int myWidth = -1; 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int myHeight = -1; 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int width = 0; 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = 0; 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 369132a742b94b9716451ddef30cec20548b346f1b9Adam Powell final int widthMode = MeasureSpec.getMode(widthMeasureSpec); 370132a742b94b9716451ddef30cec20548b346f1b9Adam Powell final int heightMode = MeasureSpec.getMode(heightMeasureSpec); 371132a742b94b9716451ddef30cec20548b346f1b9Adam Powell final int widthSize = MeasureSpec.getSize(widthMeasureSpec); 372132a742b94b9716451ddef30cec20548b346f1b9Adam Powell final int heightSize = MeasureSpec.getSize(heightMeasureSpec); 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Record our dimensions if they are known; 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (widthMode != MeasureSpec.UNSPECIFIED) { 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project myWidth = widthSize; 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (heightMode != MeasureSpec.UNSPECIFIED) { 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project myHeight = heightSize; 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (widthMode == MeasureSpec.EXACTLY) { 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project width = myWidth; 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (heightMode == MeasureSpec.EXACTLY) { 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = myHeight; 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mHasBaselineAlignedChild = false; 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View ignore = null; 3946a03640539405afbdefe72894759281b98aa6e6fFabrice Di Meglio int gravity = mGravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK; 395f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio final boolean horizontalGravity = gravity != Gravity.START && gravity != 0; 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean verticalGravity = gravity != Gravity.TOP && gravity != 0; 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int left = Integer.MAX_VALUE; 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int top = Integer.MAX_VALUE; 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int right = Integer.MIN_VALUE; 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int bottom = Integer.MIN_VALUE; 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 404f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy boolean offsetHorizontalAxis = false; 405f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy boolean offsetVerticalAxis = false; 406f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((horizontalGravity || verticalGravity) && mIgnoreGravity != View.NO_ID) { 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ignore = findViewById(mIgnoreGravity); 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 411f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy final boolean isWrapContentWidth = widthMode != MeasureSpec.EXACTLY; 412f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy final boolean isWrapContentHeight = heightMode != MeasureSpec.EXACTLY; 413f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 414e24ef6032f52cb754bfeb9ab32aae0a5cfa61f8aRomain Guy View[] views = mSortedHorizontalChildren; 415725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy int count = views.length; 416725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 417725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy View child = views[i]; 418725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (child.getVisibility() != GONE) { 419725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy LayoutParams params = (LayoutParams) child.getLayoutParams(); 420956070383945db5f842ec05e507fd0233705738cRomain Guy 421956070383945db5f842ec05e507fd0233705738cRomain Guy applyHorizontalSizeRules(params, myWidth); 422f782e60efc09f210643432f31b4c18026d7716d6Romain Guy measureChildHorizontal(child, params, myWidth, myHeight); 423f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (positionChildHorizontal(child, params, myWidth, isWrapContentWidth)) { 424f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy offsetHorizontalAxis = true; 425f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 426725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 427725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 428725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 429e24ef6032f52cb754bfeb9ab32aae0a5cfa61f8aRomain Guy views = mSortedVerticalChildren; 430725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy count = views.length; 431f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 432725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 433725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy View child = views[i]; 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() != GONE) { 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LayoutParams params = (LayoutParams) child.getLayoutParams(); 436956070383945db5f842ec05e507fd0233705738cRomain Guy 437956070383945db5f842ec05e507fd0233705738cRomain Guy applyVerticalSizeRules(params, myHeight); 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project measureChild(child, params, myWidth, myHeight); 439f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (positionChildVertical(child, params, myHeight, isWrapContentHeight)) { 440f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy offsetVerticalAxis = true; 441f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 443f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (isWrapContentWidth) { 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project width = Math.max(width, params.mRight); 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 446f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 447f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (isWrapContentHeight) { 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = Math.max(height, params.mBottom); 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != ignore || verticalGravity) { 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project left = Math.min(left, params.mLeft - params.leftMargin); 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project top = Math.min(top, params.mTop - params.topMargin); 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != ignore || horizontalGravity) { 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project right = Math.max(right, params.mRight + params.rightMargin); 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project bottom = Math.max(bottom, params.mBottom + params.bottomMargin); 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mHasBaselineAlignedChild) { 464725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 4669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() != GONE) { 4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LayoutParams params = (LayoutParams) child.getLayoutParams(); 4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project alignBaseline(child, params); 4699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != ignore || verticalGravity) { 471725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy left = Math.min(left, params.mLeft - params.leftMargin); 472725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy top = Math.min(top, params.mTop - params.topMargin); 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != ignore || horizontalGravity) { 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project right = Math.max(right, params.mRight + params.rightMargin); 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project bottom = Math.max(bottom, params.mBottom + params.bottomMargin); 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 483bb4b601673a4f910d3e467bc5ce39538438859ceFabrice Di Meglio final int layoutDirection = getLayoutDirection(); 484bb4b601673a4f910d3e467bc5ce39538438859ceFabrice Di Meglio 485f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (isWrapContentWidth) { 486a1f3e4aef19882b4b81075d9205bd363efe1e66dRomain Guy // Width already has left padding in it since it was calculated by looking at 4879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the right of each child view 4889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project width += mPaddingRight; 4899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mLayoutParams.width >= 0) { 4919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project width = Math.max(width, mLayoutParams.width); 4929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project width = Math.max(width, getSuggestedMinimumWidth()); 4959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project width = resolveSize(width, widthMeasureSpec); 496f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 497f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (offsetHorizontalAxis) { 498d10a576791675628a014c0488c3d054371d4d63aRomain Guy for (int i = 0; i < count; i++) { 499f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy View child = getChildAt(i); 500f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (child.getVisibility() != GONE) { 501f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy LayoutParams params = (LayoutParams) child.getLayoutParams(); 502f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio final int[] rules = params.getRules(layoutDirection); 503f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (rules[CENTER_IN_PARENT] != 0 || rules[CENTER_HORIZONTAL] != 0) { 504f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy centerHorizontal(child, params, width); 50542460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy } else if (rules[ALIGN_PARENT_RIGHT] != 0) { 50642460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy final int childWidth = child.getMeasuredWidth(); 50742460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy params.mLeft = width - mPaddingRight - childWidth; 50842460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy params.mRight = params.mLeft + childWidth; 509f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 510f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 511f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 512f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 5139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 514f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 515f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (isWrapContentHeight) { 516a1f3e4aef19882b4b81075d9205bd363efe1e66dRomain Guy // Height already has top padding in it since it was calculated by looking at 5179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the bottom of each child view 5189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height += mPaddingBottom; 5199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mLayoutParams.height >= 0) { 5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = Math.max(height, mLayoutParams.height); 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = Math.max(height, getSuggestedMinimumHeight()); 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = resolveSize(height, heightMeasureSpec); 526f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 527f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (offsetVerticalAxis) { 528f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy for (int i = 0; i < count; i++) { 529f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy View child = getChildAt(i); 530f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (child.getVisibility() != GONE) { 531f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy LayoutParams params = (LayoutParams) child.getLayoutParams(); 532f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio final int[] rules = params.getRules(layoutDirection); 533f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (rules[CENTER_IN_PARENT] != 0 || rules[CENTER_VERTICAL] != 0) { 534f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy centerVertical(child, params, height); 53542460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy } else if (rules[ALIGN_PARENT_BOTTOM] != 0) { 53642460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy final int childHeight = child.getMeasuredHeight(); 53742460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy params.mTop = height - mPaddingBottom - childHeight; 53842460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy params.mBottom = params.mTop + childHeight; 539f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 540f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 541f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 542f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 5439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (horizontalGravity || verticalGravity) { 5469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selfBounds = mSelfBounds; 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selfBounds.set(mPaddingLeft, mPaddingTop, width - mPaddingRight, 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height - mPaddingBottom); 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect contentBounds = mContentBounds; 5516a03640539405afbdefe72894759281b98aa6e6fFabrice Di Meglio Gravity.apply(mGravity, right - left, bottom - top, selfBounds, contentBounds, 552c0053223bedf33581b0830fb87be32c1f26e5372Fabrice Di Meglio layoutDirection); 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int horizontalOffset = contentBounds.left - left; 5559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int verticalOffset = contentBounds.top - top; 5569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (horizontalOffset != 0 || verticalOffset != 0) { 557725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 5589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 5599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() != GONE && child != ignore) { 5609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LayoutParams params = (LayoutParams) child.getLayoutParams(); 561d10a576791675628a014c0488c3d054371d4d63aRomain Guy if (horizontalGravity) { 562d10a576791675628a014c0488c3d054371d4d63aRomain Guy params.mLeft += horizontalOffset; 563d10a576791675628a014c0488c3d054371d4d63aRomain Guy params.mRight += horizontalOffset; 564d10a576791675628a014c0488c3d054371d4d63aRomain Guy } 565d10a576791675628a014c0488c3d054371d4d63aRomain Guy if (verticalGravity) { 566d10a576791675628a014c0488c3d054371d4d63aRomain Guy params.mTop += verticalOffset; 567d10a576791675628a014c0488c3d054371d4d63aRomain Guy params.mBottom += verticalOffset; 568d10a576791675628a014c0488c3d054371d4d63aRomain Guy } 5699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setMeasuredDimension(width, height); 5759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void alignBaseline(View child, LayoutParams params) { 578e56ffdc7b31b0937628609cc3bbaa15879023569Fabrice Di Meglio final int layoutDirection = getLayoutDirection(); 579f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio int[] rules = params.getRules(layoutDirection); 5809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int anchorBaseline = getRelatedViewBaseline(rules, ALIGN_BASELINE); 5819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorBaseline != -1) { 5839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LayoutParams anchorParams = getRelatedViewParams(rules, ALIGN_BASELINE); 5849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 5859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int offset = anchorParams.mTop + anchorBaseline; 5869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int baseline = child.getBaseline(); 5879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (baseline != -1) { 5889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offset -= baseline; 5899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = params.mBottom - params.mTop; 5919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mTop = offset; 5929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mBottom = params.mTop + height; 5939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mBaselineView == null) { 5979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mBaselineView = child; 5989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 5999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LayoutParams lp = (LayoutParams) mBaselineView.getLayoutParams(); 6009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (params.mTop < lp.mTop || (params.mTop == lp.mTop && params.mLeft < lp.mLeft)) { 6019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mBaselineView = child; 6029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Measure a child. The child should have left, top, right and bottom information 6089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * stored in its LayoutParams. If any of these values is -1 it means that the view 6099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * can extend up to the corresponding edge. 6109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param child Child to measure 6129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param params LayoutParams associated with child 6139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param myWidth Width of the the RelativeLayout 6149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param myHeight Height of the RelativeLayout 6159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 616725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private void measureChild(View child, LayoutParams params, int myWidth, int myHeight) { 6179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childWidthMeasureSpec = getChildMeasureSpec(params.mLeft, 6189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mRight, params.width, 6199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.leftMargin, params.rightMargin, 6209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPaddingLeft, mPaddingRight, 6219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project myWidth); 6229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childHeightMeasureSpec = getChildMeasureSpec(params.mTop, 6239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mBottom, params.height, 6249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.topMargin, params.bottomMargin, 6259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPaddingTop, mPaddingBottom, 6269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project myHeight); 6279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.measure(childWidthMeasureSpec, childHeightMeasureSpec); 6289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 630f782e60efc09f210643432f31b4c18026d7716d6Romain Guy private void measureChildHorizontal(View child, LayoutParams params, int myWidth, int myHeight) { 631956070383945db5f842ec05e507fd0233705738cRomain Guy int childWidthMeasureSpec = getChildMeasureSpec(params.mLeft, 632956070383945db5f842ec05e507fd0233705738cRomain Guy params.mRight, params.width, 633956070383945db5f842ec05e507fd0233705738cRomain Guy params.leftMargin, params.rightMargin, 634956070383945db5f842ec05e507fd0233705738cRomain Guy mPaddingLeft, mPaddingRight, 635956070383945db5f842ec05e507fd0233705738cRomain Guy myWidth); 636f782e60efc09f210643432f31b4c18026d7716d6Romain Guy int childHeightMeasureSpec; 637132a742b94b9716451ddef30cec20548b346f1b9Adam Powell if (myHeight < 0) { 638132a742b94b9716451ddef30cec20548b346f1b9Adam Powell // Negative values in a mySize/myWidth/myWidth value in RelativeLayout measurement 639132a742b94b9716451ddef30cec20548b346f1b9Adam Powell // is code for, "we got an unspecified mode in the RelativeLayout's measurespec." 640132a742b94b9716451ddef30cec20548b346f1b9Adam Powell // Carry it forward. 641132a742b94b9716451ddef30cec20548b346f1b9Adam Powell childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED); 642132a742b94b9716451ddef30cec20548b346f1b9Adam Powell } else if (params.width == LayoutParams.MATCH_PARENT) { 643baac46339da03aed166e8a4240ad063caad019adRomain Guy childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(myHeight, MeasureSpec.EXACTLY); 644f782e60efc09f210643432f31b4c18026d7716d6Romain Guy } else { 645baac46339da03aed166e8a4240ad063caad019adRomain Guy childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(myHeight, MeasureSpec.AT_MOST); 646f782e60efc09f210643432f31b4c18026d7716d6Romain Guy } 647725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy child.measure(childWidthMeasureSpec, childHeightMeasureSpec); 648725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 649725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 6509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a measure spec that accounts for all of the constraints on this view. 652f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * This includes size constraints imposed by the RelativeLayout as well as 6539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the View's desired dimension. 6549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childStart The left or top field of the child's layout params 6569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childEnd The right or bottom field of the child's layout params 6579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childSize The child's desired size (the width or height field of 6589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the child's layout params) 6599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param startMargin The left or top margin 6609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param endMargin The right or bottom margin 6619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param startPadding mPaddingLeft or mPaddingTop 6629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param endPadding mPaddingRight or mPaddingBottom 6639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mySize The width or height of this view (the RelativeLayout) 6649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return MeasureSpec for the child 6659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int getChildMeasureSpec(int childStart, int childEnd, 6679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childSize, int startMargin, int endMargin, int startPadding, 6689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int endPadding, int mySize) { 669132a742b94b9716451ddef30cec20548b346f1b9Adam Powell if (mySize < 0) { 670132a742b94b9716451ddef30cec20548b346f1b9Adam Powell // Negative values in a mySize/myWidth/myWidth value in RelativeLayout measurement 671132a742b94b9716451ddef30cec20548b346f1b9Adam Powell // is code for, "we got an unspecified mode in the RelativeLayout's measurespec." 672132a742b94b9716451ddef30cec20548b346f1b9Adam Powell // Carry it forward. 673132a742b94b9716451ddef30cec20548b346f1b9Adam Powell return MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED); 674132a742b94b9716451ddef30cec20548b346f1b9Adam Powell } 675132a742b94b9716451ddef30cec20548b346f1b9Adam Powell 6769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childSpecMode = 0; 6779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childSpecSize = 0; 6789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Figure out start and end bounds. 6809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int tempStart = childStart; 6819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int tempEnd = childEnd; 6829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the view did not express a layout constraint for an edge, use 6849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // view's margins and our padding 6859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (tempStart < 0) { 6869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project tempStart = startPadding + startMargin; 6879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (tempEnd < 0) { 6899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project tempEnd = mySize - endPadding - endMargin; 6909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Figure out maximum size available to this view 6939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int maxAvailable = tempEnd - tempStart; 6949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childStart >= 0 && childEnd >= 0) { 6969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Constraints fixed both edges, so child must be an exact size 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecMode = MeasureSpec.EXACTLY; 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecSize = maxAvailable; 6999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 7009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childSize >= 0) { 7019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Child wanted an exact size. Give as much as possible 7029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecMode = MeasureSpec.EXACTLY; 7039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (maxAvailable >= 0) { 7059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We have a maxmum size in this dimension. 7069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecSize = Math.min(maxAvailable, childSize); 7079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We can grow in this dimension. 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecSize = childSize; 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 711980a938c1c9a6a5791a8240e5a1e6638ab28dc77Romain Guy } else if (childSize == LayoutParams.MATCH_PARENT) { 712f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio // Child wanted to be as big as possible. Give all available 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // space 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecMode = MeasureSpec.EXACTLY; 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecSize = maxAvailable; 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childSize == LayoutParams.WRAP_CONTENT) { 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Child wants to wrap content. Use AT_MOST 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to communicate available space if we know 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // our max size 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (maxAvailable >= 0) { 721f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio // We have a maximum size in this dimension. 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecMode = MeasureSpec.AT_MOST; 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecSize = maxAvailable; 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We can grow in this dimension. Child can be as big as it 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // wants 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecMode = MeasureSpec.UNSPECIFIED; 7289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecSize = 0; 7299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return MeasureSpec.makeMeasureSpec(childSpecSize, childSpecMode); 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 736f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy private boolean positionChildHorizontal(View child, LayoutParams params, int myWidth, 737f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy boolean wrapContent) { 738f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 739e56ffdc7b31b0937628609cc3bbaa15879023569Fabrice Di Meglio final int layoutDirection = getLayoutDirection(); 740f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio int[] rules = params.getRules(layoutDirection); 7419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (params.mLeft < 0 && params.mRight >= 0) { 7439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Right is fixed, but left varies 7449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mLeft = params.mRight - child.getMeasuredWidth(); 7459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (params.mLeft >= 0 && params.mRight < 0) { 7469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Left is fixed, but right varies 7479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mRight = params.mLeft + child.getMeasuredWidth(); 7489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (params.mLeft < 0 && params.mRight < 0) { 7499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Both left and right vary 750f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (rules[CENTER_IN_PARENT] != 0 || rules[CENTER_HORIZONTAL] != 0) { 751f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (!wrapContent) { 752f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy centerHorizontal(child, params, myWidth); 753f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } else { 754f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy params.mLeft = mPaddingLeft + params.leftMargin; 755f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy params.mRight = params.mLeft + child.getMeasuredWidth(); 756f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 757f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy return true; 7589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 759f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio // This is the default case. For RTL we start from the right and for LTR we start 760f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio // from the left. This will give LEFT/TOP for LTR and RIGHT/TOP for RTL. 761f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio if (isLayoutRtl()) { 762f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio params.mRight = myWidth - mPaddingRight- params.rightMargin; 763f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio params.mLeft = params.mRight - child.getMeasuredWidth(); 764f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio } else { 765f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio params.mLeft = mPaddingLeft + params.leftMargin; 766f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio params.mRight = params.mLeft + child.getMeasuredWidth(); 767f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio } 7689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 770f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio return rules[ALIGN_PARENT_END] != 0; 771725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 772725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 773f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy private boolean positionChildVertical(View child, LayoutParams params, int myHeight, 774f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy boolean wrapContent) { 775f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 776725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy int[] rules = params.getRules(); 7779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (params.mTop < 0 && params.mBottom >= 0) { 7799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Bottom is fixed, but top varies 7809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mTop = params.mBottom - child.getMeasuredHeight(); 7819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (params.mTop >= 0 && params.mBottom < 0) { 7829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Top is fixed, but bottom varies 7839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mBottom = params.mTop + child.getMeasuredHeight(); 7849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (params.mTop < 0 && params.mBottom < 0) { 7859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Both top and bottom vary 786f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (rules[CENTER_IN_PARENT] != 0 || rules[CENTER_VERTICAL] != 0) { 787f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (!wrapContent) { 788f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy centerVertical(child, params, myHeight); 789f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } else { 790f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy params.mTop = mPaddingTop + params.topMargin; 791f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy params.mBottom = params.mTop + child.getMeasuredHeight(); 792f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 793f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy return true; 7949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 7959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mTop = mPaddingTop + params.topMargin; 7969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mBottom = params.mTop + child.getMeasuredHeight(); 7979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 79942460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy return rules[ALIGN_PARENT_BOTTOM] != 0; 8009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 802725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private void applyHorizontalSizeRules(LayoutParams childParams, int myWidth) { 803e56ffdc7b31b0937628609cc3bbaa15879023569Fabrice Di Meglio final int layoutDirection = getLayoutDirection(); 804f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio int[] rules = childParams.getRules(layoutDirection); 8059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RelativeLayout.LayoutParams anchorParams; 8069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // -1 indicated a "soft requirement" in that direction. For example: 8089066cfe9886ac131c34d59ed0e2d287b0e3c0087The 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 8099066cfe9886ac131c34d59ed0e2d287b0e3c0087The 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 8109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // left=10, right=20 means the left and right ends are both fixed 8119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mLeft = -1; 8129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mRight = -1; 8139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, LEFT_OF); 8159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 8169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mRight = anchorParams.mLeft - (anchorParams.leftMargin + 8179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.rightMargin); 8189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[LEFT_OF] != 0) { 8199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (myWidth >= 0) { 8209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mRight = myWidth - mPaddingRight - childParams.rightMargin; 8219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 8229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME uh oh... 8239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, RIGHT_OF); 8279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 8289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mLeft = anchorParams.mRight + (anchorParams.rightMargin + 8299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.leftMargin); 8309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[RIGHT_OF] != 0) { 8319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mLeft = mPaddingLeft + childParams.leftMargin; 8329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, ALIGN_LEFT); 8359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 8369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mLeft = anchorParams.mLeft + childParams.leftMargin; 8379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[ALIGN_LEFT] != 0) { 8389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mLeft = mPaddingLeft + childParams.leftMargin; 8399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, ALIGN_RIGHT); 8429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 8439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mRight = anchorParams.mRight - childParams.rightMargin; 8449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[ALIGN_RIGHT] != 0) { 8459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (myWidth >= 0) { 8469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mRight = myWidth - mPaddingRight - childParams.rightMargin; 8479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 8489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME uh oh... 8499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (0 != rules[ALIGN_PARENT_LEFT]) { 8539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mLeft = mPaddingLeft + childParams.leftMargin; 8549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (0 != rules[ALIGN_PARENT_RIGHT]) { 8579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (myWidth >= 0) { 8589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mRight = myWidth - mPaddingRight - childParams.rightMargin; 8599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 8609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME uh oh... 8619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 863725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 864725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 865725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private void applyVerticalSizeRules(LayoutParams childParams, int myHeight) { 866725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy int[] rules = childParams.getRules(); 867725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy RelativeLayout.LayoutParams anchorParams; 8689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mTop = -1; 8709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mBottom = -1; 8719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, ABOVE); 8739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 8749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mBottom = anchorParams.mTop - (anchorParams.topMargin + 8759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.bottomMargin); 8769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[ABOVE] != 0) { 8779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (myHeight >= 0) { 8789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mBottom = myHeight - mPaddingBottom - childParams.bottomMargin; 8799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 8809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME uh oh... 8819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, BELOW); 8859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 8869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mTop = anchorParams.mBottom + (anchorParams.bottomMargin + 8879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.topMargin); 8889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[BELOW] != 0) { 8899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mTop = mPaddingTop + childParams.topMargin; 8909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, ALIGN_TOP); 8939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 8949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mTop = anchorParams.mTop + childParams.topMargin; 8959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[ALIGN_TOP] != 0) { 8969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mTop = mPaddingTop + childParams.topMargin; 8979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, ALIGN_BOTTOM); 9009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 9019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mBottom = anchorParams.mBottom - childParams.bottomMargin; 9029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[ALIGN_BOTTOM] != 0) { 9039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (myHeight >= 0) { 9049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mBottom = myHeight - mPaddingBottom - childParams.bottomMargin; 9059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 9069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME uh oh... 9079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (0 != rules[ALIGN_PARENT_TOP]) { 9119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mTop = mPaddingTop + childParams.topMargin; 9129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (0 != rules[ALIGN_PARENT_BOTTOM]) { 9159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (myHeight >= 0) { 9169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mBottom = myHeight - mPaddingBottom - childParams.bottomMargin; 9179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 9189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME uh oh... 9199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (rules[ALIGN_BASELINE] != 0) { 9239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mHasBaselineAlignedChild = true; 9249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View getRelatedView(int[] rules, int relation) { 9289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int id = rules[relation]; 9299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (id != 0) { 9301ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy DependencyGraph.Node node = mGraph.mKeyNodes.get(id); 931a0fd1d742d8edaf6c7e79bdd16a9b0c44fda4503Romain Guy if (node == null) return null; 932a0fd1d742d8edaf6c7e79bdd16a9b0c44fda4503Romain Guy View v = node.view; 9339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Find the first non-GONE view up the chain 9359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while (v.getVisibility() == View.GONE) { 9369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules = ((LayoutParams) v.getLayoutParams()).getRules(); 9371ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy node = mGraph.mKeyNodes.get((rules[relation])); 938a0fd1d742d8edaf6c7e79bdd16a9b0c44fda4503Romain Guy if (node == null) return null; 939a0fd1d742d8edaf6c7e79bdd16a9b0c44fda4503Romain Guy v = node.view; 9409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return v; 9439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 9469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private LayoutParams getRelatedViewParams(int[] rules, int relation) { 9499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getRelatedView(rules, relation); 9509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) { 9519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewGroup.LayoutParams params = v.getLayoutParams(); 9529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (params instanceof LayoutParams) { 9539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (LayoutParams) v.getLayoutParams(); 9549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 9579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int getRelatedViewBaseline(int[] rules, int relation) { 9609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getRelatedView(rules, relation); 9619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) { 9629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return v.getBaseline(); 9639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return -1; 9659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void centerHorizontal(View child, LayoutParams params, int myWidth) { 9689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childWidth = child.getMeasuredWidth(); 9699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int left = (myWidth - childWidth) / 2; 9709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mLeft = left; 9729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mRight = left + childWidth; 9739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void centerVertical(View child, LayoutParams params, int myHeight) { 9769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childHeight = child.getMeasuredHeight(); 9779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int top = (myHeight - childHeight) / 2; 9789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mTop = top; 9809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mBottom = top + childHeight; 9819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 9849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 9859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The layout has actually already been performed and the positions 9869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // cached. Apply the cached values to the children. 9879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 9889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 9909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 9919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() != GONE) { 9929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RelativeLayout.LayoutParams st = 9939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (RelativeLayout.LayoutParams) child.getLayoutParams(); 9949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.layout(st.mLeft, st.mTop, st.mRight, st.mBottom); 9959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 10009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams generateLayoutParams(AttributeSet attrs) { 10019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new RelativeLayout.LayoutParams(getContext(), attrs); 10029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns a set of layout parameters with a width of 10069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup.LayoutParams#WRAP_CONTENT}, 10079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * a height of {@link android.view.ViewGroup.LayoutParams#WRAP_CONTENT} and no spanning. 10089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 10109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateDefaultLayoutParams() { 10119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT); 10129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Override to allow type-checking of LayoutParams. 10159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 10169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 10179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof RelativeLayout.LayoutParams; 10189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 10219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 10229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(p); 10239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 102575986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov @Override 102675986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) { 102775986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov if (mTopToBottomLeftToRightSet == null) { 102875986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov mTopToBottomLeftToRightSet = new TreeSet<View>(new TopToBottomLeftToRightComparator()); 102975986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 103075986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov 103175986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov // sort children top-to-bottom and left-to-right 103275986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov for (int i = 0, count = getChildCount(); i < count; i++) { 103375986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov mTopToBottomLeftToRightSet.add(getChildAt(i)); 103475986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 103575986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov 103675986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov for (View view : mTopToBottomLeftToRightSet) { 10370b0a41d8e26eaf0f1d9d922621494daf40964a9aSvetoslav Ganov if (view.getVisibility() == View.VISIBLE 10380b0a41d8e26eaf0f1d9d922621494daf40964a9aSvetoslav Ganov && view.dispatchPopulateAccessibilityEvent(event)) { 103975986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov mTopToBottomLeftToRightSet.clear(); 104075986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov return true; 104175986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 104275986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 104375986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov 104475986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov mTopToBottomLeftToRightSet.clear(); 104575986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov return false; 104675986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 104775986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov 10488a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 10498a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityEvent(AccessibilityEvent event) { 10508a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityEvent(event); 10518a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov event.setClassName(RelativeLayout.class.getName()); 10528a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 10538a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 10548a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 10558a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { 10568a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityNodeInfo(info); 10578a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov info.setClassName(RelativeLayout.class.getName()); 10588a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 10598a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 106075986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov /** 106175986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov * Compares two views in left-to-right and top-to-bottom fashion. 106275986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov */ 106375986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov private class TopToBottomLeftToRightComparator implements Comparator<View> { 106475986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov public int compare(View first, View second) { 106575986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov // top - bottom 106675986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov int topDifference = first.getTop() - second.getTop(); 106775986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov if (topDifference != 0) { 106875986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov return topDifference; 106975986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 107075986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov // left - right 107175986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov int leftDifference = first.getLeft() - second.getLeft(); 107275986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov if (leftDifference != 0) { 107375986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov return leftDifference; 107475986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 107575986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov // break tie by height 107675986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov int heightDiference = first.getHeight() - second.getHeight(); 107775986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov if (heightDiference != 0) { 107875986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov return heightDiference; 107975986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 108075986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov // break tie by width 108175986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov int widthDiference = first.getWidth() - second.getWidth(); 108275986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov if (widthDiference != 0) { 108375986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov return widthDiference; 108475986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 108575986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov return 0; 108675986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 108775986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 108875986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov 10899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Per-child layout information associated with RelativeLayout. 10919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignWithParentIfMissing 10939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_toLeftOf 10949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_toRightOf 10959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_above 10969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_below 10979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignBaseline 10989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignLeft 10999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignTop 11009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignRight 11019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignBottom 11029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignParentLeft 11039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignParentTop 11049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignParentRight 11059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignParentBottom 11069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_centerInParent 11079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_centerHorizontal 11089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_centerVertical 1109f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * @attr ref android.R.styleable#RelativeLayout_Layout_layout_toStartOf 1110f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * @attr ref android.R.styleable#RelativeLayout_Layout_layout_toEndOf 1111f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignStart 1112f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignEnd 1113f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignParentStart 1114f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignParentEnd 11159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class LayoutParams extends ViewGroup.MarginLayoutParams { 1117bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "layout", resolveId = true, indexMapping = { 1118c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ABOVE, to = "above"), 1119c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_BASELINE, to = "alignBaseline"), 1120c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_BOTTOM, to = "alignBottom"), 1121c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_LEFT, to = "alignLeft"), 1122c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_PARENT_BOTTOM, to = "alignParentBottom"), 1123c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_PARENT_LEFT, to = "alignParentLeft"), 1124c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_PARENT_RIGHT, to = "alignParentRight"), 1125c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_PARENT_TOP, to = "alignParentTop"), 1126c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_RIGHT, to = "alignRight"), 1127c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_TOP, to = "alignTop"), 1128c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = BELOW, to = "below"), 1129c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = CENTER_HORIZONTAL, to = "centerHorizontal"), 1130c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = CENTER_IN_PARENT, to = "center"), 1131c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = CENTER_VERTICAL, to = "centerVertical"), 1132c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = LEFT_OF, to = "leftOf"), 1133f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio @ViewDebug.IntToString(from = RIGHT_OF, to = "rightOf"), 1134f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio @ViewDebug.IntToString(from = ALIGN_START, to = "alignStart"), 1135f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio @ViewDebug.IntToString(from = ALIGN_END, to = "alignEnd"), 1136f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio @ViewDebug.IntToString(from = ALIGN_PARENT_START, to = "alignParentStart"), 1137f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio @ViewDebug.IntToString(from = ALIGN_PARENT_END, to = "alignParentEnd"), 1138f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio @ViewDebug.IntToString(from = START_OF, to = "startOf"), 1139f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio @ViewDebug.IntToString(from = END_OF, to = "endOf") 1140105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project }, mapping = { 1141105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project @ViewDebug.IntToString(from = TRUE, to = "true"), 1142a1f3e4aef19882b4b81075d9205bd363efe1e66dRomain Guy @ViewDebug.IntToString(from = 0, to = "false/NO_ID") 1143105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project }) 1144f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio 11459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int[] mRules = new int[VERB_COUNT]; 1146f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio private int[] mInitialRules = new int[VERB_COUNT]; 1147c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project 11489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLeft, mTop, mRight, mBottom; 11499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1150f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio private int mStart = DEFAULT_RELATIVE; 1151f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio private int mEnd = DEFAULT_RELATIVE; 1152f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio 1153f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio private boolean mRulesChanged = false; 1154f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio 11559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When true, uses the parent as the anchor if the anchor doesn't exist or if 11579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the anchor's visibility is GONE. 11589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1159bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "layout") 11609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean alignWithParent; 11619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(Context c, AttributeSet attrs) { 11639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(c, attrs); 11649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = c.obtainStyledAttributes(attrs, 11669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.RelativeLayout_Layout); 11679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] rules = mRules; 1169f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio final int[] initialRules = mInitialRules; 11709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int N = a.getIndexCount(); 11729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < N; i++) { 11739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int attr = a.getIndex(i); 11749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (attr) { 11759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignWithParentIfMissing: 11769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project alignWithParent = a.getBoolean(attr, false); 11779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 11789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_toLeftOf: 11799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[LEFT_OF] = a.getResourceId(attr, 0); 11809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 11819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_toRightOf: 11829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[RIGHT_OF] = a.getResourceId(attr, 0); 11839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 11849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_above: 11859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ABOVE] = a.getResourceId(attr, 0); 11869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 11879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_below: 11889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[BELOW] = a.getResourceId(attr, 0); 11899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 11909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignBaseline: 11919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_BASELINE] = a.getResourceId(attr, 0); 11929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 11939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignLeft: 11949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_LEFT] = a.getResourceId(attr, 0); 11959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 11969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignTop: 11979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_TOP] = a.getResourceId(attr, 0); 11989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 11999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignRight: 12009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_RIGHT] = a.getResourceId(attr, 0); 12019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 12029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignBottom: 12039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_BOTTOM] = a.getResourceId(attr, 0); 12049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 12059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignParentLeft: 12069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_PARENT_LEFT] = a.getBoolean(attr, false) ? TRUE : 0; 12079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 12089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignParentTop: 12099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_PARENT_TOP] = a.getBoolean(attr, false) ? TRUE : 0; 12109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 12119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignParentRight: 12129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_PARENT_RIGHT] = a.getBoolean(attr, false) ? TRUE : 0; 12139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 12149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignParentBottom: 12159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_PARENT_BOTTOM] = a.getBoolean(attr, false) ? TRUE : 0; 12169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 12179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_centerInParent: 12189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[CENTER_IN_PARENT] = a.getBoolean(attr, false) ? TRUE : 0; 12199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 12209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_centerHorizontal: 12219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[CENTER_HORIZONTAL] = a.getBoolean(attr, false) ? TRUE : 0; 12229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 12239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_centerVertical: 12249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[CENTER_VERTICAL] = a.getBoolean(attr, false) ? TRUE : 0; 12259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 1226f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio case com.android.internal.R.styleable.RelativeLayout_Layout_layout_toStartOf: 1227f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio rules[START_OF] = a.getResourceId(attr, 0); 1228f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio break; 1229f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio case com.android.internal.R.styleable.RelativeLayout_Layout_layout_toEndOf: 1230f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio rules[END_OF] = a.getResourceId(attr, 0); 1231f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio break; 1232f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignStart: 1233f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio rules[ALIGN_START] = a.getResourceId(attr, 0); 1234f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio break; 1235f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignEnd: 1236f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio rules[ALIGN_END] = a.getResourceId(attr, 0); 1237f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio break; 1238f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignParentStart: 1239f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio rules[ALIGN_PARENT_START] = a.getBoolean(attr, false) ? TRUE : 0; 1240f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio break; 1241f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignParentEnd: 1242f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio rules[ALIGN_PARENT_END] = a.getBoolean(attr, false) ? TRUE : 0; 1243f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio break; 12449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1247f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio for (int n = LEFT_OF; n < VERB_COUNT; n++) { 1248f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio initialRules[n] = rules[n]; 1249f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio } 1250f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio 12519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 12529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h) { 12559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 12569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 12609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams source) { 12629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 12639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 12679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.MarginLayoutParams source) { 12699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 12709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String debug(String output) { 12749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return output + "ViewGroup.LayoutParams={ width=" + sizeToString(width) + 12759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ", height=" + sizeToString(height) + " }"; 12769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Adds a layout rule to be interpreted by the RelativeLayout. This 12809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * method should only be used for constraints that don't refer to another sibling 12819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (e.g., CENTER_IN_PARENT) or take a boolean value ({@link RelativeLayout#TRUE} 1282f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * for true or 0 for false). To specify a verb that takes a subject, use 12839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #addRule(int, int)} instead. 12849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param verb One of the verbs defined by 12869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.RelativeLayout RelativeLayout}, such as 12879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * ALIGN_WITH_PARENT_LEFT. 12889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #addRule(int, int) 12899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addRule(int verb) { 12919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRules[verb] = TRUE; 1292f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio mInitialRules[verb] = TRUE; 1293f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio mRulesChanged = true; 12949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Adds a layout rule to be interpreted by the RelativeLayout. Use this for 12989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * verbs that take a target, such as a sibling (ALIGN_RIGHT) or a boolean 12999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * value (VISIBLE). 13009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param verb One of the verbs defined by 13029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.RelativeLayout RelativeLayout}, such as 13039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * ALIGN_WITH_PARENT_LEFT. 13049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param anchor The id of another view to use as an anchor, 13059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * or a boolean value(represented as {@link RelativeLayout#TRUE}) 13069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * for true or 0 for false). For verbs that don't refer to another sibling 13079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (for example, ALIGN_WITH_PARENT_BOTTOM) just use -1. 13089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #addRule(int) 13099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addRule(int verb, int anchor) { 13119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRules[verb] = anchor; 1312f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio mInitialRules[verb] = anchor; 1313f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio mRulesChanged = true; 1314f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio } 1315f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio 1316a4c1030870d8c91b6d871922c3e6962323700f25Fabrice Di Meglio /** 1317a4c1030870d8c91b6d871922c3e6962323700f25Fabrice Di Meglio * Removes a layout rule to be interpreted by the RelativeLayout. 1318a4c1030870d8c91b6d871922c3e6962323700f25Fabrice Di Meglio * 1319a4c1030870d8c91b6d871922c3e6962323700f25Fabrice Di Meglio * @param verb One of the verbs defined by 1320a4c1030870d8c91b6d871922c3e6962323700f25Fabrice Di Meglio * {@link android.widget.RelativeLayout RelativeLayout}, such as 1321a4c1030870d8c91b6d871922c3e6962323700f25Fabrice Di Meglio * ALIGN_WITH_PARENT_LEFT. 1322a4c1030870d8c91b6d871922c3e6962323700f25Fabrice Di Meglio * @see #addRule(int) 1323a4c1030870d8c91b6d871922c3e6962323700f25Fabrice Di Meglio * @see #addRule(int, int) 1324a4c1030870d8c91b6d871922c3e6962323700f25Fabrice Di Meglio */ 1325a4c1030870d8c91b6d871922c3e6962323700f25Fabrice Di Meglio public void removeRule(int verb) { 1326a4c1030870d8c91b6d871922c3e6962323700f25Fabrice Di Meglio mRules[verb] = 0; 1327a4c1030870d8c91b6d871922c3e6962323700f25Fabrice Di Meglio mInitialRules[verb] = 0; 1328a4c1030870d8c91b6d871922c3e6962323700f25Fabrice Di Meglio mRulesChanged = true; 1329a4c1030870d8c91b6d871922c3e6962323700f25Fabrice Di Meglio } 1330a4c1030870d8c91b6d871922c3e6962323700f25Fabrice Di Meglio 1331f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio private boolean hasRelativeRules() { 1332f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio return (mInitialRules[START_OF] != 0 || mInitialRules[END_OF] != 0 || 1333f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio mInitialRules[ALIGN_START] != 0 || mInitialRules[ALIGN_END] != 0 || 1334f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio mInitialRules[ALIGN_PARENT_START] != 0 || mInitialRules[ALIGN_PARENT_END] != 0); 1335f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio } 1336f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio 1337f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio private void resolveRules(int layoutDirection) { 1338f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio final boolean isLayoutRtl = (layoutDirection == View.LAYOUT_DIRECTION_RTL); 1339f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio // Reset to initial state 1340f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio for (int n = LEFT_OF; n < VERB_COUNT; n++) { 1341f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio mRules[n] = mInitialRules[n]; 1342f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio } 1343f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio // Apply rules depending on direction 1344f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio if (mRules[ALIGN_START] != 0) { 1345f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio mRules[isLayoutRtl ? ALIGN_RIGHT : ALIGN_LEFT] = mRules[ALIGN_START]; 1346f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio } 1347f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio if (mRules[ALIGN_END] != 0) { 1348f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio mRules[isLayoutRtl ? ALIGN_LEFT : ALIGN_RIGHT] = mRules[ALIGN_END]; 1349f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio } 1350f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio if (mRules[START_OF] != 0) { 1351f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio mRules[isLayoutRtl ? RIGHT_OF : LEFT_OF] = mRules[START_OF]; 1352f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio } 1353f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio if (mRules[END_OF] != 0) { 1354f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio mRules[isLayoutRtl ? LEFT_OF : RIGHT_OF] = mRules[END_OF]; 1355f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio } 1356f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio if (mRules[ALIGN_PARENT_START] != 0) { 1357f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio mRules[isLayoutRtl ? ALIGN_PARENT_RIGHT : ALIGN_PARENT_LEFT] = mRules[ALIGN_PARENT_START]; 1358f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio } 1359f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio if (mRules[ALIGN_PARENT_END] != 0) { 1360f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio mRules[isLayoutRtl ? ALIGN_PARENT_LEFT : ALIGN_PARENT_RIGHT] = mRules[ALIGN_PARENT_END]; 1361f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio } 1362f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio mRulesChanged = false; 1363f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio } 1364f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio 1365f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio /** 1366f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * Retrieves a complete list of all supported rules, where the index is the rule 1367f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * verb, and the element value is the value specified, or "false" if it was never 1368f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * set. If there are relative rules defined (*_START / *_END), they will be resolved 1369f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * depending on the layout direction. 1370f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * 1371f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * @param layoutDirection the direction of the layout. 1372f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * Should be either {@link View#LAYOUT_DIRECTION_LTR} 1373f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * or {@link View#LAYOUT_DIRECTION_RTL} 1374f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * @return the supported rules 1375f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * @see #addRule(int, int) 1376f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * 1377f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * @hide 1378f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio */ 1379f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio public int[] getRules(int layoutDirection) { 1380f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio if (hasRelativeRules() && 1381f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio (mRulesChanged || layoutDirection != getLayoutDirection())) { 1382f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio resolveRules(layoutDirection); 1383f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio if (layoutDirection != getLayoutDirection()) { 1384f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio setLayoutDirection(layoutDirection); 1385f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio } 1386f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio } 1387f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio return mRules; 13889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Retrieves a complete list of all supported rules, where the index is the rule 13929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * verb, and the element value is the value specified, or "false" if it was never 1393f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * set. There will be no resolution of relative rules done. 13949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the supported rules 13969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #addRule(int, int) 13979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int[] getRules() { 13999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mRules; 14009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1401f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio 1402f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio @Override 14032918ab6c3258639148b8a5c78a34483af195246eFabrice Di Meglio public void resolveLayoutDirection(int layoutDirection) { 1404f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio final boolean isLayoutRtl = isLayoutRtl(); 1405f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio if (isLayoutRtl) { 1406f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio if (mStart != DEFAULT_RELATIVE) mRight = mStart; 1407f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio if (mEnd != DEFAULT_RELATIVE) mLeft = mEnd; 1408f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio } else { 1409f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio if (mStart != DEFAULT_RELATIVE) mLeft = mStart; 1410f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio if (mEnd != DEFAULT_RELATIVE) mRight = mEnd; 1411f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio } 1412f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio 1413f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio if (hasRelativeRules() && layoutDirection != getLayoutDirection()) { 1414f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio resolveRules(layoutDirection); 1415f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio } 1416f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio // This will set the layout direction 14172918ab6c3258639148b8a5c78a34483af195246eFabrice Di Meglio super.resolveLayoutDirection(layoutDirection); 1418f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio } 14199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1420725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1421725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private static class DependencyGraph { 1422725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 14231ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy * List of all views in the graph. 14241ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy */ 14251ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy private ArrayList<Node> mNodes = new ArrayList<Node>(); 14261ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy 14271ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy /** 1428725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * List of nodes in the graph. Each node is identified by its 1429725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * view id (see View#getId()). 1430725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 14311ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy private SparseArray<Node> mKeyNodes = new SparseArray<Node>(); 1432725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1433725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1434725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * Temporary data structure used to build the list of roots 1435725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * for this graph. 1436725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1437bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy private ArrayDeque<Node> mRoots = new ArrayDeque<Node>(); 1438725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1439725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1440725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * Clears the graph. 1441725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1442725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy void clear() { 14431ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final ArrayList<Node> nodes = mNodes; 1444725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final int count = nodes.size(); 1445725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1446725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 14471ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy nodes.get(i).release(); 1448725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1449725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy nodes.clear(); 1450725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 14511ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy mKeyNodes.clear(); 1452725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy mRoots.clear(); 1453725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1454725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1455725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1456725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * Adds a view to the graph. 1457725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * 1458725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * @param view The view to be added as a node to the graph. 1459725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1460725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy void add(View view) { 14611ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final int id = view.getId(); 14621ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final Node node = Node.acquire(view); 14631ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy 14641ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy if (id != View.NO_ID) { 14651ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy mKeyNodes.put(id, node); 14661ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy } 14671ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy 14681ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy mNodes.add(node); 1469725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1470725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1471725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1472725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * Builds a sorted list of views. The sorting order depends on the dependencies 1473725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * between the view. For instance, if view C needs view A to be processed first 1474725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * and view A needs view B to be processed first, the dependency graph 1475725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * is: B -> A -> C. The sorted array will contain views B, A and C in this order. 1476725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * 1477725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * @param sorted The sorted list of views. The length of this array must 1478725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * be equal to getChildCount(). 1479725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * @param rules The list of rules to take into account. 1480725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1481725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy void getSortedViews(View[] sorted, int... rules) { 1482bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy final ArrayDeque<Node> roots = findRoots(rules); 1483725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy int index = 0; 1484725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1485bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy Node node; 1486bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy while ((node = roots.pollLast()) != null) { 1487725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final View view = node.view; 1488725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final int key = view.getId(); 1489725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1490725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy sorted[index++] = view; 1491725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1492bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy final HashMap<Node, DependencyGraph> dependents = node.dependents; 1493bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy for (Node dependent : dependents.keySet()) { 1494725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final SparseArray<Node> dependencies = dependent.dependencies; 1495725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1496725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy dependencies.remove(key); 1497725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (dependencies.size() == 0) { 1498725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy roots.add(dependent); 1499725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1500725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1501725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1502725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1503725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (index < sorted.length) { 1504725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy throw new IllegalStateException("Circular dependencies cannot exist" 1505725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy + " in RelativeLayout"); 1506725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1507725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1508725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1509725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1510725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * Finds the roots of the graph. A root is a node with no dependency and 1511725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * with [0..n] dependents. 1512725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * 1513725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * @param rulesFilter The list of rules to consider when building the 1514725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * dependencies 1515725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * 1516725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * @return A list of node, each being a root of the graph 1517725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1518bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy private ArrayDeque<Node> findRoots(int[] rulesFilter) { 15191ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final SparseArray<Node> keyNodes = mKeyNodes; 15201ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final ArrayList<Node> nodes = mNodes; 1521725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final int count = nodes.size(); 1522725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1523725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // Find roots can be invoked several times, so make sure to clear 1524725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // all dependents and dependencies before running the algorithm 1525725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 15261ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final Node node = nodes.get(i); 1527725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy node.dependents.clear(); 1528725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy node.dependencies.clear(); 1529725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1530725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1531725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // Builds up the dependents and dependencies for each node of the graph 1532725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 15331ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final Node node = nodes.get(i); 1534725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1535725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final LayoutParams layoutParams = (LayoutParams) node.view.getLayoutParams(); 1536725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final int[] rules = layoutParams.mRules; 1537725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final int rulesCount = rulesFilter.length; 1538725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1539725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // Look only the the rules passed in parameter, this way we build only the 1540725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // dependencies for a specific set of rules 1541725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int j = 0; j < rulesCount; j++) { 1542725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final int rule = rules[rulesFilter[j]]; 1543725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (rule > 0) { 1544725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // The node this node depends on 15451ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final Node dependency = keyNodes.get(rule); 1546da3003e1d71d66a1c936489025f8db314a2a4588Romain Guy // Skip unknowns and self dependencies 1547da3003e1d71d66a1c936489025f8db314a2a4588Romain Guy if (dependency == null || dependency == node) { 1548b8f8de85160b0a072158b45320e9fc2adba545f5Romain Guy continue; 1549b8f8de85160b0a072158b45320e9fc2adba545f5Romain Guy } 1550725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // Add the current node as a dependent 1551bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy dependency.dependents.put(node, this); 1552725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // Add a dependency to the current node 1553725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy node.dependencies.put(rule, dependency); 1554725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1555725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1556725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1557725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1558bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy final ArrayDeque<Node> roots = mRoots; 1559725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy roots.clear(); 1560725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1561725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // Finds all the roots in the graph: all nodes with no dependencies 1562725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 15631ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final Node node = nodes.get(i); 1564bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy if (node.dependencies.size() == 0) roots.addLast(node); 1565725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1566725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1567725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy return roots; 1568725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1569725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1570725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1571725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * Prints the dependency graph for the specified rules. 1572725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * 1573725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * @param resources The context's resources to print the ids. 1574725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * @param rules The list of rules to take into account. 1575725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1576725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy void log(Resources resources, int... rules) { 1577bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy final ArrayDeque<Node> roots = findRoots(rules); 1578725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (Node node : roots) { 1579725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy printNode(resources, node); 1580725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1581725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1582725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 15839fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy static void printViewId(Resources resources, View view) { 1584725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (view.getId() != View.NO_ID) { 1585725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy d(LOG_TAG, resources.getResourceEntryName(view.getId())); 1586725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } else { 1587725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy d(LOG_TAG, "NO_ID"); 1588725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1589725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1590725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1591725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private static void appendViewId(Resources resources, Node node, StringBuilder buffer) { 1592725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (node.view.getId() != View.NO_ID) { 1593725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy buffer.append(resources.getResourceEntryName(node.view.getId())); 1594725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } else { 1595725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy buffer.append("NO_ID"); 1596725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1597725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1598725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1599725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private static void printNode(Resources resources, Node node) { 1600725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (node.dependents.size() == 0) { 1601725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy printViewId(resources, node.view); 1602725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } else { 1603bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy for (Node dependent : node.dependents.keySet()) { 1604725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy StringBuilder buffer = new StringBuilder(); 1605725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy appendViewId(resources, node, buffer); 1606725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy printdependents(resources, dependent, buffer); 1607725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1608725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1609725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1610725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1611725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private static void printdependents(Resources resources, Node node, StringBuilder buffer) { 1612725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy buffer.append(" -> "); 1613725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy appendViewId(resources, node, buffer); 1614725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1615725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (node.dependents.size() == 0) { 1616725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy d(LOG_TAG, buffer.toString()); 1617725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } else { 1618bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy for (Node dependent : node.dependents.keySet()) { 1619725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy StringBuilder subBuffer = new StringBuilder(buffer); 1620725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy printdependents(resources, dependent, subBuffer); 1621725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1622725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1623725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1624725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1625725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1626725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * A node in the dependency graph. A node is a view, its list of dependencies 1627725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * and its list of dependents. 1628725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * 1629725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * A node with no dependent is considered a root of the graph. 1630725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1631abae2a1b891772d36d8f781adfcc8969e551691fSvetoslav Ganov static class Node { 1632725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1633725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * The view representing this node in the layout. 1634725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1635725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy View view; 1636725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1637725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1638725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * The list of dependents for this node; a dependent is a node 1639725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * that needs this node to be processed first. 1640725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1641bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy final HashMap<Node, DependencyGraph> dependents = new HashMap<Node, DependencyGraph>(); 1642725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1643725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1644725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * The list of dependencies for this node. 1645725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1646725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final SparseArray<Node> dependencies = new SparseArray<Node>(); 1647725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1648725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /* 1649725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * START POOL IMPLEMENTATION 1650725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1651baac46339da03aed166e8a4240ad063caad019adRomain Guy // The pool is static, so all nodes instances are shared across 1652baac46339da03aed166e8a4240ad063caad019adRomain Guy // activities, that's why we give it a rather high limit 1653baac46339da03aed166e8a4240ad063caad019adRomain Guy private static final int POOL_LIMIT = 100; 1654abae2a1b891772d36d8f781adfcc8969e551691fSvetoslav Ganov private static final SimplePool<Node> sPool = new SimplePool<Node>(POOL_LIMIT); 16558643aa0179e598e78d938c59035389054535a229Svetoslav Ganov 1656725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy static Node acquire(View view) { 1657abae2a1b891772d36d8f781adfcc8969e551691fSvetoslav Ganov Node node = sPool.acquire(); 1658abae2a1b891772d36d8f781adfcc8969e551691fSvetoslav Ganov if (node == null) { 1659abae2a1b891772d36d8f781adfcc8969e551691fSvetoslav Ganov node = new Node(); 1660abae2a1b891772d36d8f781adfcc8969e551691fSvetoslav Ganov } 1661725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy node.view = view; 1662725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy return node; 1663725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1664725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1665725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy void release() { 1666725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy view = null; 1667725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy dependents.clear(); 1668725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy dependencies.clear(); 1669725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1670725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy sPool.release(this); 1671725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1672725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /* 1673725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * END POOL IMPLEMENTATION 1674725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1675725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1676725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 16779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1678