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 196876b4fb9082fe525d6edb59a834bb0e7c35ca39Romain Guyimport android.util.ArrayMap; 209e3b002d3f9141d54948a65e0330fdcd09e75a30Fabrice Di Meglioimport com.android.internal.R; 219e3b002d3f9141d54948a65e0330fdcd09e75a30Fabrice Di Meglio 22bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guyimport java.util.ArrayDeque; 239e3b002d3f9141d54948a65e0330fdcd09e75a30Fabrice Di Meglioimport java.util.ArrayList; 249e3b002d3f9141d54948a65e0330fdcd09e75a30Fabrice Di Meglioimport java.util.Comparator; 259e3b002d3f9141d54948a65e0330fdcd09e75a30Fabrice Di Meglioimport java.util.SortedSet; 269e3b002d3f9141d54948a65e0330fdcd09e75a30Fabrice Di Meglioimport java.util.TreeSet; 279e3b002d3f9141d54948a65e0330fdcd09e75a30Fabrice Di Meglio 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.Context; 296a03640539405afbdefe72894759281b98aa6e6fFabrice Di Meglioimport android.content.res.TypedArray; 3075986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganovimport android.graphics.Rect; 317da4b73a236b7c72d1337696949df7a00776dd06Adam Powellimport android.os.Build; 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.AttributeSet; 336876b4fb9082fe525d6edb59a834bb0e7c35ca39Romain Guyimport android.util.Pools.SynchronizedPool; 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 43c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglioimport static android.os.Build.VERSION_CODES.JELLY_BEAN_MR1; 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 * 562c8cc972c3b03b76a80db517dde1e68895bbdd66Adam Powell * <p><strong>Note:</strong> In platform version 17 and lower, RelativeLayout was affected by 572c8cc972c3b03b76a80db517dde1e68895bbdd66Adam Powell * a measurement bug that could cause child views to be measured with incorrect 582c8cc972c3b03b76a80db517dde1e68895bbdd66Adam Powell * {@link android.view.View.MeasureSpec MeasureSpec} values. (See 592c8cc972c3b03b76a80db517dde1e68895bbdd66Adam Powell * {@link android.view.View.MeasureSpec#makeMeasureSpec(int, int) MeasureSpec.makeMeasureSpec} 602c8cc972c3b03b76a80db517dde1e68895bbdd66Adam Powell * for more details.) This was triggered when a RelativeLayout container was placed in 612c8cc972c3b03b76a80db517dde1e68895bbdd66Adam Powell * a scrolling container, such as a ScrollView or HorizontalScrollView. If a custom view 622c8cc972c3b03b76a80db517dde1e68895bbdd66Adam Powell * not equipped to properly measure with the MeasureSpec mode 632c8cc972c3b03b76a80db517dde1e68895bbdd66Adam Powell * {@link android.view.View.MeasureSpec#UNSPECIFIED UNSPECIFIED} was placed in a RelativeLayout, 642c8cc972c3b03b76a80db517dde1e68895bbdd66Adam Powell * this would silently work anyway as RelativeLayout would pass a very large 652c8cc972c3b03b76a80db517dde1e68895bbdd66Adam Powell * {@link android.view.View.MeasureSpec#AT_MOST AT_MOST} MeasureSpec instead.</p> 662c8cc972c3b03b76a80db517dde1e68895bbdd66Adam Powell * 672c8cc972c3b03b76a80db517dde1e68895bbdd66Adam Powell * <p>This behavior has been preserved for apps that set <code>android:targetSdkVersion="17"</code> 682c8cc972c3b03b76a80db517dde1e68895bbdd66Adam Powell * or older in their manifest's <code>uses-sdk</code> tag for compatibility. Apps targeting SDK 692c8cc972c3b03b76a80db517dde1e68895bbdd66Adam Powell * version 18 or newer will receive the correct behavior</p> 702c8cc972c3b03b76a80db517dde1e68895bbdd66Adam Powell * 714c359b76f9a030f92a302ba74a528faa170bad4eScott Main * <p>See the <a href="{@docRoot}guide/topics/ui/layout/relative.html">Relative 724c359b76f9a030f92a302ba74a528faa170bad4eScott Main * Layout</a> guide.</p> 7341ec65355bd6ded652769725b276d47c54a0d913Scott Main * 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p> 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Also see {@link android.widget.RelativeLayout.LayoutParams RelativeLayout.LayoutParams} for 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout attributes 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * </p> 78a1f3e4aef19882b4b81075d9205bd363efe1e66dRomain Guy * 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_gravity 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_ignoreGravity 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project@RemoteView 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic class RelativeLayout extends ViewGroup { 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRUE = -1; 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's right edge with another child's left edge. 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int LEFT_OF = 0; 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's left edge with another child's right edge. 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int RIGHT_OF = 1; 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's bottom edge with another child's top edge. 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ABOVE = 2; 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's top edge with another child's bottom edge. 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int BELOW = 3; 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's baseline with another child's baseline. 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_BASELINE = 4; 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's left edge with another child's left edge. 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_LEFT = 5; 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's top edge with another child's top edge. 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_TOP = 6; 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's right edge with another child's right edge. 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_RIGHT = 7; 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's bottom edge with another child's bottom edge. 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_BOTTOM = 8; 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns the child's left edge with its RelativeLayout 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * parent's left edge. 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_PARENT_LEFT = 9; 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns the child's top edge with its RelativeLayout 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * parent's top edge. 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_PARENT_TOP = 10; 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns the child's right edge with its RelativeLayout 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * parent's right edge. 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_PARENT_RIGHT = 11; 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns the child's bottom edge with its RelativeLayout 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * parent's bottom edge. 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_PARENT_BOTTOM = 12; 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that centers the child with respect to the bounds of its 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * RelativeLayout parent. 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int CENTER_IN_PARENT = 13; 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that centers the child horizontally with respect to the 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bounds of its RelativeLayout parent. 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int CENTER_HORIZONTAL = 14; 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that centers the child vertically with respect to the 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bounds of its RelativeLayout parent. 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int CENTER_VERTICAL = 15; 160f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio /** 161f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * Rule that aligns a child's end edge with another child's start edge. 162f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio */ 163f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio public static final int START_OF = 16; 164f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio /** 165f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * Rule that aligns a child's start edge with another child's end edge. 166f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio */ 167f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio public static final int END_OF = 17; 168f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio /** 169f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * Rule that aligns a child's start edge with another child's start edge. 170f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio */ 171f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio public static final int ALIGN_START = 18; 172f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio /** 173f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * Rule that aligns a child's end edge with another child's end edge. 174f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio */ 175f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio public static final int ALIGN_END = 19; 176f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio /** 177f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * Rule that aligns the child's start edge with its RelativeLayout 178f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * parent's start edge. 179f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio */ 180f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio public static final int ALIGN_PARENT_START = 20; 181f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio /** 182f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * Rule that aligns the child's end edge with its RelativeLayout 183f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * parent's end edge. 184f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio */ 185f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio public static final int ALIGN_PARENT_END = 21; 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 187f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio private static final int VERB_COUNT = 22; 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 189bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy 190bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy private static final int[] RULES_VERTICAL = { 191bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy ABOVE, BELOW, ALIGN_BASELINE, ALIGN_TOP, ALIGN_BOTTOM 192bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy }; 193bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy 194bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy private static final int[] RULES_HORIZONTAL = { 195f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio LEFT_OF, RIGHT_OF, ALIGN_LEFT, ALIGN_RIGHT, START_OF, END_OF, ALIGN_START, ALIGN_END 196bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy }; 197bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy 19828308e8494933baf6c28012d7599346633671337Chet Haase /** 19928308e8494933baf6c28012d7599346633671337Chet Haase * Used to indicate left/right/top/bottom should be inferred from constraints 20028308e8494933baf6c28012d7599346633671337Chet Haase */ 20128308e8494933baf6c28012d7599346633671337Chet Haase private static final int VALUE_NOT_SET = Integer.MIN_VALUE; 20228308e8494933baf6c28012d7599346633671337Chet Haase 2039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View mBaselineView = null; 2049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mHasBaselineAlignedChild; 2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 206f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio private int mGravity = Gravity.START | Gravity.TOP; 2079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final Rect mContentBounds = new Rect(); 2089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final Rect mSelfBounds = new Rect(); 2099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mIgnoreGravity; 2109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 211725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private SortedSet<View> mTopToBottomLeftToRightSet = null; 212725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 213725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private boolean mDirtyHierarchy; 2146876b4fb9082fe525d6edb59a834bb0e7c35ca39Romain Guy private View[] mSortedHorizontalChildren; 2156876b4fb9082fe525d6edb59a834bb0e7c35ca39Romain Guy private View[] mSortedVerticalChildren; 216725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private final DependencyGraph mGraph = new DependencyGraph(); 21775986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov 2187da4b73a236b7c72d1337696949df7a00776dd06Adam Powell // Compatibility hack. Old versions of the platform had problems 2197da4b73a236b7c72d1337696949df7a00776dd06Adam Powell // with MeasureSpec value overflow and RelativeLayout was one source of them. 2207da4b73a236b7c72d1337696949df7a00776dd06Adam Powell // Some apps came to rely on them. :( 2217da4b73a236b7c72d1337696949df7a00776dd06Adam Powell private boolean mAllowBrokenMeasureSpecs = false; 22276d59a3b7b3ceea1d0854e588532cfc91b44201dRomain Guy // Compatibility hack. Old versions of the platform would not take 22376d59a3b7b3ceea1d0854e588532cfc91b44201dRomain Guy // margins and padding into account when generating the height measure spec 22476d59a3b7b3ceea1d0854e588532cfc91b44201dRomain Guy // for children during the horizontal measure pass. 22576d59a3b7b3ceea1d0854e588532cfc91b44201dRomain Guy private boolean mMeasureVerticalWithPaddingMargin = false; 2267da4b73a236b7c72d1337696949df7a00776dd06Adam Powell 227d5ffc79fc8c94df58509c4881b18e64cd922960eFabrice Di Meglio // A default width used for RTL measure pass 228ca2e9e1122ba8b83d05bd144d0be31e8a3c30537Philip Milne /** 229ca2e9e1122ba8b83d05bd144d0be31e8a3c30537Philip Milne * Value reduced so as not to interfere with View's measurement spec. flags. See: 230ca2e9e1122ba8b83d05bd144d0be31e8a3c30537Philip Milne * {@link View#MEASURED_SIZE_MASK}. 231ca2e9e1122ba8b83d05bd144d0be31e8a3c30537Philip Milne * {@link View#MEASURED_STATE_TOO_SMALL}. 232ca2e9e1122ba8b83d05bd144d0be31e8a3c30537Philip Milne **/ 2333c647d23e5e00b5663f344b7c3f0ab38d74cf720Philip Milne private static final int DEFAULT_WIDTH = 0x00010000; 234306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio 2359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public RelativeLayout(Context context) { 236d6479ec5eec13914f656f6be996d95fe1610fd57Alan Viverette this(context, null); 2379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public RelativeLayout(Context context, AttributeSet attrs) { 240d6479ec5eec13914f656f6be996d95fe1610fd57Alan Viverette this(context, attrs, 0); 2419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 243617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette public RelativeLayout(Context context, AttributeSet attrs, int defStyleAttr) { 244d6479ec5eec13914f656f6be996d95fe1610fd57Alan Viverette this(context, attrs, defStyleAttr, 0); 245617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette } 246617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette 247617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette public RelativeLayout(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) { 248617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette super(context, attrs, defStyleAttr, defStyleRes); 249d6479ec5eec13914f656f6be996d95fe1610fd57Alan Viverette initFromAttributes(context, attrs, defStyleAttr, defStyleRes); 25076d59a3b7b3ceea1d0854e588532cfc91b44201dRomain Guy queryCompatibilityModes(context); 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 253d6479ec5eec13914f656f6be996d95fe1610fd57Alan Viverette private void initFromAttributes( 254d6479ec5eec13914f656f6be996d95fe1610fd57Alan Viverette Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) { 255d6479ec5eec13914f656f6be996d95fe1610fd57Alan Viverette final TypedArray a = context.obtainStyledAttributes( 256d6479ec5eec13914f656f6be996d95fe1610fd57Alan Viverette attrs, R.styleable.RelativeLayout, defStyleAttr, defStyleRes); 2579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIgnoreGravity = a.getResourceId(R.styleable.RelativeLayout_ignoreGravity, View.NO_ID); 2589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGravity = a.getInt(R.styleable.RelativeLayout_gravity, mGravity); 2599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 2609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26276d59a3b7b3ceea1d0854e588532cfc91b44201dRomain Guy private void queryCompatibilityModes(Context context) { 26376d59a3b7b3ceea1d0854e588532cfc91b44201dRomain Guy int version = context.getApplicationInfo().targetSdkVersion; 26476d59a3b7b3ceea1d0854e588532cfc91b44201dRomain Guy mAllowBrokenMeasureSpecs = version <= Build.VERSION_CODES.JELLY_BEAN_MR1; 26576d59a3b7b3ceea1d0854e588532cfc91b44201dRomain Guy mMeasureVerticalWithPaddingMargin = version >= Build.VERSION_CODES.JELLY_BEAN_MR2; 26676d59a3b7b3ceea1d0854e588532cfc91b44201dRomain Guy } 26776d59a3b7b3ceea1d0854e588532cfc91b44201dRomain Guy 268e0a799a2ac1ca78e30fbac9e4e12a063425c08d3Patrick Dubroy @Override 269e0a799a2ac1ca78e30fbac9e4e12a063425c08d3Patrick Dubroy public boolean shouldDelayChildPressedState() { 270e0a799a2ac1ca78e30fbac9e4e12a063425c08d3Patrick Dubroy return false; 271e0a799a2ac1ca78e30fbac9e4e12a063425c08d3Patrick Dubroy } 272e0a799a2ac1ca78e30fbac9e4e12a063425c08d3Patrick Dubroy 2739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines which View is ignored when the gravity is applied. This setting has no 275f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * effect if the gravity is <code>Gravity.START | Gravity.TOP</code>. 2769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param viewId The id of the View to be ignored by gravity, or 0 if no View 2789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * should be ignored. 2799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setGravity(int) 2819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_ignoreGravity 2839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @android.view.RemotableViewMethod 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setIgnoreGravity(int viewId) { 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIgnoreGravity = viewId; 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2901018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne * Describes how the child views are positioned. 2911018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne * 2921018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne * @return the gravity. 2931018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne * 2941018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne * @see #setGravity(int) 2951018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne * @see android.view.Gravity 2961018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne * 2971018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne * @attr ref android.R.styleable#RelativeLayout_gravity 2981018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne */ 2991018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne public int getGravity() { 3001018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne return mGravity; 3011018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne } 3021018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne 3031018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne /** 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Describes how the child views are positioned. Defaults to 305f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * <code>Gravity.START | Gravity.TOP</code>. 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3071fec24e0fff95afaa90bbf811e9f8db659eb9324Adam Powell * <p>Note that since RelativeLayout considers the positioning of each child 3081fec24e0fff95afaa90bbf811e9f8db659eb9324Adam Powell * relative to one another to be significant, setting gravity will affect 3091fec24e0fff95afaa90bbf811e9f8db659eb9324Adam Powell * the positioning of all children as a single unit within the parent. 3101fec24e0fff95afaa90bbf811e9f8db659eb9324Adam Powell * This happens after children have been relatively positioned.</p> 3111fec24e0fff95afaa90bbf811e9f8db659eb9324Adam Powell * 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param gravity See {@link android.view.Gravity} 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setHorizontalGravity(int) 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setVerticalGravity(int) 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_gravity 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @android.view.RemotableViewMethod 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setGravity(int gravity) { 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mGravity != gravity) { 3226a03640539405afbdefe72894759281b98aa6e6fFabrice Di Meglio if ((gravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) == 0) { 3239e3b002d3f9141d54948a65e0330fdcd09e75a30Fabrice Di Meglio gravity |= Gravity.START; 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((gravity & Gravity.VERTICAL_GRAVITY_MASK) == 0) { 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project gravity |= Gravity.TOP; 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGravity = gravity; 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @android.view.RemotableViewMethod 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setHorizontalGravity(int horizontalGravity) { 3376a03640539405afbdefe72894759281b98aa6e6fFabrice Di Meglio final int gravity = horizontalGravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK; 3386a03640539405afbdefe72894759281b98aa6e6fFabrice Di Meglio if ((mGravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) != gravity) { 3396a03640539405afbdefe72894759281b98aa6e6fFabrice Di Meglio mGravity = (mGravity & ~Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) | gravity; 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @android.view.RemotableViewMethod 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setVerticalGravity(int verticalGravity) { 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int gravity = verticalGravity & Gravity.VERTICAL_GRAVITY_MASK; 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != gravity) { 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGravity = (mGravity & ~Gravity.VERTICAL_GRAVITY_MASK) | gravity; 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getBaseline() { 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mBaselineView != null ? mBaselineView.getBaseline() : super.getBaseline(); 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 359725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy public void requestLayout() { 360725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy super.requestLayout(); 361725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy mDirtyHierarchy = true; 362725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 363725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 364725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private void sortChildren() { 3656876b4fb9082fe525d6edb59a834bb0e7c35ca39Romain Guy final int count = getChildCount(); 3666876b4fb9082fe525d6edb59a834bb0e7c35ca39Romain Guy if (mSortedVerticalChildren == null || mSortedVerticalChildren.length != count) { 3676876b4fb9082fe525d6edb59a834bb0e7c35ca39Romain Guy mSortedVerticalChildren = new View[count]; 3686876b4fb9082fe525d6edb59a834bb0e7c35ca39Romain Guy } 3696876b4fb9082fe525d6edb59a834bb0e7c35ca39Romain Guy 3706876b4fb9082fe525d6edb59a834bb0e7c35ca39Romain Guy if (mSortedHorizontalChildren == null || mSortedHorizontalChildren.length != count) { 3716876b4fb9082fe525d6edb59a834bb0e7c35ca39Romain Guy mSortedHorizontalChildren = new View[count]; 3726876b4fb9082fe525d6edb59a834bb0e7c35ca39Romain Guy } 373725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 374725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final DependencyGraph graph = mGraph; 375725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy graph.clear(); 376725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 377725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 3786876b4fb9082fe525d6edb59a834bb0e7c35ca39Romain Guy graph.add(getChildAt(i)); 379725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 380725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 381bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy graph.getSortedViews(mSortedVerticalChildren, RULES_VERTICAL); 382bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy graph.getSortedViews(mSortedHorizontalChildren, RULES_HORIZONTAL); 383725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 384725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 385725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy @Override 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 387725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (mDirtyHierarchy) { 388725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy mDirtyHierarchy = false; 389725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy sortChildren(); 390725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 391725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int myWidth = -1; 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int myHeight = -1; 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int width = 0; 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = 0; 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 398132a742b94b9716451ddef30cec20548b346f1b9Adam Powell final int widthMode = MeasureSpec.getMode(widthMeasureSpec); 399132a742b94b9716451ddef30cec20548b346f1b9Adam Powell final int heightMode = MeasureSpec.getMode(heightMeasureSpec); 400132a742b94b9716451ddef30cec20548b346f1b9Adam Powell final int widthSize = MeasureSpec.getSize(widthMeasureSpec); 401132a742b94b9716451ddef30cec20548b346f1b9Adam Powell final int heightSize = MeasureSpec.getSize(heightMeasureSpec); 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Record our dimensions if they are known; 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (widthMode != MeasureSpec.UNSPECIFIED) { 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project myWidth = widthSize; 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (heightMode != MeasureSpec.UNSPECIFIED) { 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project myHeight = heightSize; 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (widthMode == MeasureSpec.EXACTLY) { 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project width = myWidth; 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (heightMode == MeasureSpec.EXACTLY) { 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = myHeight; 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mHasBaselineAlignedChild = false; 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View ignore = null; 4236a03640539405afbdefe72894759281b98aa6e6fFabrice Di Meglio int gravity = mGravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK; 424f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio final boolean horizontalGravity = gravity != Gravity.START && gravity != 0; 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean verticalGravity = gravity != Gravity.TOP && gravity != 0; 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int left = Integer.MAX_VALUE; 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int top = Integer.MAX_VALUE; 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int right = Integer.MIN_VALUE; 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int bottom = Integer.MIN_VALUE; 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 433f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy boolean offsetHorizontalAxis = false; 434f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy boolean offsetVerticalAxis = false; 435f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((horizontalGravity || verticalGravity) && mIgnoreGravity != View.NO_ID) { 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ignore = findViewById(mIgnoreGravity); 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 440f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy final boolean isWrapContentWidth = widthMode != MeasureSpec.EXACTLY; 441f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy final boolean isWrapContentHeight = heightMode != MeasureSpec.EXACTLY; 442f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 443306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio // We need to know our size for doing the correct computation of children positioning in RTL 444306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio // mode but there is no practical way to get it instead of running the code below. 445d5ffc79fc8c94df58509c4881b18e64cd922960eFabrice Di Meglio // So, instead of running the code twice, we just set the width to a "default display width" 446306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio // before the computation and then, as a last pass, we will update their real position with 447d5ffc79fc8c94df58509c4881b18e64cd922960eFabrice Di Meglio // an offset equals to "DEFAULT_WIDTH - width". 448306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio final int layoutDirection = getLayoutDirection(); 449306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio if (isLayoutRtl() && myWidth == -1) { 450d5ffc79fc8c94df58509c4881b18e64cd922960eFabrice Di Meglio myWidth = DEFAULT_WIDTH; 451306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio } 452306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio 453e24ef6032f52cb754bfeb9ab32aae0a5cfa61f8aRomain Guy View[] views = mSortedHorizontalChildren; 454725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy int count = views.length; 45513705eda8cc065ee98feb94af649615579cd4a58Fabrice Di Meglio 456725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 457725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy View child = views[i]; 458725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (child.getVisibility() != GONE) { 459725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy LayoutParams params = (LayoutParams) child.getLayoutParams(); 460547261320cb4bbb3e967246bc86578263d94e84dFabrice Di Meglio int[] rules = params.getRules(layoutDirection); 461956070383945db5f842ec05e507fd0233705738cRomain Guy 462547261320cb4bbb3e967246bc86578263d94e84dFabrice Di Meglio applyHorizontalSizeRules(params, myWidth, rules); 463f782e60efc09f210643432f31b4c18026d7716d6Romain Guy measureChildHorizontal(child, params, myWidth, myHeight); 464547261320cb4bbb3e967246bc86578263d94e84dFabrice Di Meglio 465f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (positionChildHorizontal(child, params, myWidth, isWrapContentWidth)) { 466f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy offsetHorizontalAxis = true; 467f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 468725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 469725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 470725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 471e24ef6032f52cb754bfeb9ab32aae0a5cfa61f8aRomain Guy views = mSortedVerticalChildren; 472725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy count = views.length; 4732bd961ae38ebd0acb7d33b32144a3c8a0949c023Fabrice Di Meglio final int targetSdkVersion = getContext().getApplicationInfo().targetSdkVersion; 474f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 475725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 476725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy View child = views[i]; 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() != GONE) { 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LayoutParams params = (LayoutParams) child.getLayoutParams(); 479956070383945db5f842ec05e507fd0233705738cRomain Guy 480956070383945db5f842ec05e507fd0233705738cRomain Guy applyVerticalSizeRules(params, myHeight); 4819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project measureChild(child, params, myWidth, myHeight); 482f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (positionChildVertical(child, params, myHeight, isWrapContentHeight)) { 483f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy offsetVerticalAxis = true; 484f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 4859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 486f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (isWrapContentWidth) { 487306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio if (isLayoutRtl()) { 488e8222dddaf2e3da14380101e818d4254899e0c0dChet Haase if (targetSdkVersion < Build.VERSION_CODES.KITKAT) { 4892bd961ae38ebd0acb7d33b32144a3c8a0949c023Fabrice Di Meglio width = Math.max(width, myWidth - params.mLeft); 4902bd961ae38ebd0acb7d33b32144a3c8a0949c023Fabrice Di Meglio } else { 4912bd961ae38ebd0acb7d33b32144a3c8a0949c023Fabrice Di Meglio width = Math.max(width, myWidth - params.mLeft - params.leftMargin); 4922bd961ae38ebd0acb7d33b32144a3c8a0949c023Fabrice Di Meglio } 493306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio } else { 494e8222dddaf2e3da14380101e818d4254899e0c0dChet Haase if (targetSdkVersion < Build.VERSION_CODES.KITKAT) { 4952bd961ae38ebd0acb7d33b32144a3c8a0949c023Fabrice Di Meglio width = Math.max(width, params.mRight); 4962bd961ae38ebd0acb7d33b32144a3c8a0949c023Fabrice Di Meglio } else { 4972bd961ae38ebd0acb7d33b32144a3c8a0949c023Fabrice Di Meglio width = Math.max(width, params.mRight + params.rightMargin); 4982bd961ae38ebd0acb7d33b32144a3c8a0949c023Fabrice Di Meglio } 499306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio } 5009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 501f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 502f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (isWrapContentHeight) { 503e8222dddaf2e3da14380101e818d4254899e0c0dChet Haase if (targetSdkVersion < Build.VERSION_CODES.KITKAT) { 5042bd961ae38ebd0acb7d33b32144a3c8a0949c023Fabrice Di Meglio height = Math.max(height, params.mBottom); 5052bd961ae38ebd0acb7d33b32144a3c8a0949c023Fabrice Di Meglio } else { 5062bd961ae38ebd0acb7d33b32144a3c8a0949c023Fabrice Di Meglio height = Math.max(height, params.mBottom + params.bottomMargin); 5072bd961ae38ebd0acb7d33b32144a3c8a0949c023Fabrice Di Meglio } 5089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != ignore || verticalGravity) { 5119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project left = Math.min(left, params.mLeft - params.leftMargin); 5129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project top = Math.min(top, params.mTop - params.topMargin); 5139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != ignore || horizontalGravity) { 5169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project right = Math.max(right, params.mRight + params.rightMargin); 5179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project bottom = Math.max(bottom, params.mBottom + params.bottomMargin); 5189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mHasBaselineAlignedChild) { 523725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() != GONE) { 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LayoutParams params = (LayoutParams) child.getLayoutParams(); 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project alignBaseline(child, params); 5289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != ignore || verticalGravity) { 530725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy left = Math.min(left, params.mLeft - params.leftMargin); 531725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy top = Math.min(top, params.mTop - params.topMargin); 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != ignore || horizontalGravity) { 5359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project right = Math.max(right, params.mRight + params.rightMargin); 5369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project bottom = Math.max(bottom, params.mBottom + params.bottomMargin); 5379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 542f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (isWrapContentWidth) { 543a1f3e4aef19882b4b81075d9205bd363efe1e66dRomain Guy // Width already has left padding in it since it was calculated by looking at 5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the right of each child view 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project width += mPaddingRight; 5469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 547758d5a4563a71d4f3f7efbf7e450e8e537abc185Adam Powell if (mLayoutParams != null && mLayoutParams.width >= 0) { 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project width = Math.max(width, mLayoutParams.width); 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project width = Math.max(width, getSuggestedMinimumWidth()); 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project width = resolveSize(width, widthMeasureSpec); 553f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 554f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (offsetHorizontalAxis) { 555d10a576791675628a014c0488c3d054371d4d63aRomain Guy for (int i = 0; i < count; i++) { 556f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy View child = getChildAt(i); 557f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (child.getVisibility() != GONE) { 558f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy LayoutParams params = (LayoutParams) child.getLayoutParams(); 559f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio final int[] rules = params.getRules(layoutDirection); 560f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (rules[CENTER_IN_PARENT] != 0 || rules[CENTER_HORIZONTAL] != 0) { 561f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy centerHorizontal(child, params, width); 56242460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy } else if (rules[ALIGN_PARENT_RIGHT] != 0) { 56342460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy final int childWidth = child.getMeasuredWidth(); 56442460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy params.mLeft = width - mPaddingRight - childWidth; 56542460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy params.mRight = params.mLeft + childWidth; 566f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 567f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 568f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 569f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 5709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 571f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 572f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (isWrapContentHeight) { 573a1f3e4aef19882b4b81075d9205bd363efe1e66dRomain Guy // Height already has top padding in it since it was calculated by looking at 5749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the bottom of each child view 5759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height += mPaddingBottom; 5769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 577758d5a4563a71d4f3f7efbf7e450e8e537abc185Adam Powell if (mLayoutParams != null && mLayoutParams.height >= 0) { 5789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = Math.max(height, mLayoutParams.height); 5799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = Math.max(height, getSuggestedMinimumHeight()); 5829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = resolveSize(height, heightMeasureSpec); 583f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 584f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (offsetVerticalAxis) { 585f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy for (int i = 0; i < count; i++) { 586f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy View child = getChildAt(i); 587f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (child.getVisibility() != GONE) { 588f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy LayoutParams params = (LayoutParams) child.getLayoutParams(); 589f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio final int[] rules = params.getRules(layoutDirection); 590f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (rules[CENTER_IN_PARENT] != 0 || rules[CENTER_VERTICAL] != 0) { 591f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy centerVertical(child, params, height); 59242460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy } else if (rules[ALIGN_PARENT_BOTTOM] != 0) { 59342460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy final int childHeight = child.getMeasuredHeight(); 59442460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy params.mTop = height - mPaddingBottom - childHeight; 59542460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy params.mBottom = params.mTop + childHeight; 596f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 597f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 598f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 599f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 6009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (horizontalGravity || verticalGravity) { 6039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selfBounds = mSelfBounds; 6049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selfBounds.set(mPaddingLeft, mPaddingTop, width - mPaddingRight, 6059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height - mPaddingBottom); 6069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect contentBounds = mContentBounds; 6086a03640539405afbdefe72894759281b98aa6e6fFabrice Di Meglio Gravity.apply(mGravity, right - left, bottom - top, selfBounds, contentBounds, 609c0053223bedf33581b0830fb87be32c1f26e5372Fabrice Di Meglio layoutDirection); 6109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int horizontalOffset = contentBounds.left - left; 6129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int verticalOffset = contentBounds.top - top; 6139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (horizontalOffset != 0 || verticalOffset != 0) { 614725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 6159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 6169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() != GONE && child != ignore) { 6179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LayoutParams params = (LayoutParams) child.getLayoutParams(); 618d10a576791675628a014c0488c3d054371d4d63aRomain Guy if (horizontalGravity) { 619d10a576791675628a014c0488c3d054371d4d63aRomain Guy params.mLeft += horizontalOffset; 620d10a576791675628a014c0488c3d054371d4d63aRomain Guy params.mRight += horizontalOffset; 621d10a576791675628a014c0488c3d054371d4d63aRomain Guy } 622d10a576791675628a014c0488c3d054371d4d63aRomain Guy if (verticalGravity) { 623d10a576791675628a014c0488c3d054371d4d63aRomain Guy params.mTop += verticalOffset; 624d10a576791675628a014c0488c3d054371d4d63aRomain Guy params.mBottom += verticalOffset; 625d10a576791675628a014c0488c3d054371d4d63aRomain Guy } 6269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 631306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio if (isLayoutRtl()) { 632306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio final int offsetWidth = myWidth - width; 633306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio for (int i = 0; i < count; i++) { 634306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio View child = getChildAt(i); 635306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio if (child.getVisibility() != GONE) { 636306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio LayoutParams params = (LayoutParams) child.getLayoutParams(); 637306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio params.mLeft -= offsetWidth; 638306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio params.mRight -= offsetWidth; 639306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio } 640306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio } 641306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio 642306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio } 643306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio 6449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setMeasuredDimension(width, height); 6459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void alignBaseline(View child, LayoutParams params) { 648e56ffdc7b31b0937628609cc3bbaa15879023569Fabrice Di Meglio final int layoutDirection = getLayoutDirection(); 649f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio int[] rules = params.getRules(layoutDirection); 6509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int anchorBaseline = getRelatedViewBaseline(rules, ALIGN_BASELINE); 6519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorBaseline != -1) { 6539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LayoutParams anchorParams = getRelatedViewParams(rules, ALIGN_BASELINE); 6549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 6559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int offset = anchorParams.mTop + anchorBaseline; 6569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int baseline = child.getBaseline(); 6579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (baseline != -1) { 6589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offset -= baseline; 6599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = params.mBottom - params.mTop; 6619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mTop = offset; 6629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mBottom = params.mTop + height; 6639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mBaselineView == null) { 6679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mBaselineView = child; 6689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 6699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LayoutParams lp = (LayoutParams) mBaselineView.getLayoutParams(); 6709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (params.mTop < lp.mTop || (params.mTop == lp.mTop && params.mLeft < lp.mLeft)) { 6719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mBaselineView = child; 6729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Measure a child. The child should have left, top, right and bottom information 67828308e8494933baf6c28012d7599346633671337Chet Haase * stored in its LayoutParams. If any of these values is VALUE_NOT_SET it means 67928308e8494933baf6c28012d7599346633671337Chet Haase * that the view can extend up to the corresponding edge. 6809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param child Child to measure 6829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param params LayoutParams associated with child 6839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param myWidth Width of the the RelativeLayout 6849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param myHeight Height of the RelativeLayout 6859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 686725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private void measureChild(View child, LayoutParams params, int myWidth, int myHeight) { 687e8fb03c05899c00f55ab1990e1b16038e82d1167Romain Guy int childWidthMeasureSpec = getChildMeasureSpec(params.mLeft, 688e8fb03c05899c00f55ab1990e1b16038e82d1167Romain Guy params.mRight, params.width, 689e8fb03c05899c00f55ab1990e1b16038e82d1167Romain Guy params.leftMargin, params.rightMargin, 690e8fb03c05899c00f55ab1990e1b16038e82d1167Romain Guy mPaddingLeft, mPaddingRight, 691e8fb03c05899c00f55ab1990e1b16038e82d1167Romain Guy myWidth); 6921b7c791adf6d5e113cd07fa1a9cbef310f79145aRomain Guy int childHeightMeasureSpec = getChildMeasureSpec(params.mTop, 6931b7c791adf6d5e113cd07fa1a9cbef310f79145aRomain Guy params.mBottom, params.height, 6941b7c791adf6d5e113cd07fa1a9cbef310f79145aRomain Guy params.topMargin, params.bottomMargin, 6951b7c791adf6d5e113cd07fa1a9cbef310f79145aRomain Guy mPaddingTop, mPaddingBottom, 6961b7c791adf6d5e113cd07fa1a9cbef310f79145aRomain Guy myHeight); 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.measure(childWidthMeasureSpec, childHeightMeasureSpec); 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 700f782e60efc09f210643432f31b4c18026d7716d6Romain Guy private void measureChildHorizontal(View child, LayoutParams params, int myWidth, int myHeight) { 701956070383945db5f842ec05e507fd0233705738cRomain Guy int childWidthMeasureSpec = getChildMeasureSpec(params.mLeft, 702956070383945db5f842ec05e507fd0233705738cRomain Guy params.mRight, params.width, 703956070383945db5f842ec05e507fd0233705738cRomain Guy params.leftMargin, params.rightMargin, 704956070383945db5f842ec05e507fd0233705738cRomain Guy mPaddingLeft, mPaddingRight, 705956070383945db5f842ec05e507fd0233705738cRomain Guy myWidth); 70676d59a3b7b3ceea1d0854e588532cfc91b44201dRomain Guy int maxHeight = myHeight; 70776d59a3b7b3ceea1d0854e588532cfc91b44201dRomain Guy if (mMeasureVerticalWithPaddingMargin) { 70876d59a3b7b3ceea1d0854e588532cfc91b44201dRomain Guy maxHeight = Math.max(0, myHeight - mPaddingTop - mPaddingBottom - 70976d59a3b7b3ceea1d0854e588532cfc91b44201dRomain Guy params.topMargin - params.bottomMargin); 71076d59a3b7b3ceea1d0854e588532cfc91b44201dRomain Guy } 711f782e60efc09f210643432f31b4c18026d7716d6Romain Guy int childHeightMeasureSpec; 7127da4b73a236b7c72d1337696949df7a00776dd06Adam Powell if (myHeight < 0 && !mAllowBrokenMeasureSpecs) { 713f16c7a97548cedccea291ffebc4388a7f15c9aa1Romain Guy if (params.height >= 0) { 714f16c7a97548cedccea291ffebc4388a7f15c9aa1Romain Guy childHeightMeasureSpec = MeasureSpec.makeMeasureSpec( 715f16c7a97548cedccea291ffebc4388a7f15c9aa1Romain Guy params.height, MeasureSpec.EXACTLY); 716f16c7a97548cedccea291ffebc4388a7f15c9aa1Romain Guy } else { 717f16c7a97548cedccea291ffebc4388a7f15c9aa1Romain Guy // Negative values in a mySize/myWidth/myWidth value in RelativeLayout measurement 718f16c7a97548cedccea291ffebc4388a7f15c9aa1Romain Guy // is code for, "we got an unspecified mode in the RelativeLayout's measurespec." 719f16c7a97548cedccea291ffebc4388a7f15c9aa1Romain Guy // Carry it forward. 720f16c7a97548cedccea291ffebc4388a7f15c9aa1Romain Guy childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED); 721f16c7a97548cedccea291ffebc4388a7f15c9aa1Romain Guy } 722132a742b94b9716451ddef30cec20548b346f1b9Adam Powell } else if (params.width == LayoutParams.MATCH_PARENT) { 72376d59a3b7b3ceea1d0854e588532cfc91b44201dRomain Guy childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(maxHeight, MeasureSpec.EXACTLY); 724f782e60efc09f210643432f31b4c18026d7716d6Romain Guy } else { 72576d59a3b7b3ceea1d0854e588532cfc91b44201dRomain Guy childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(maxHeight, MeasureSpec.AT_MOST); 726f782e60efc09f210643432f31b4c18026d7716d6Romain Guy } 727725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy child.measure(childWidthMeasureSpec, childHeightMeasureSpec); 728725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 729725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 7309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a measure spec that accounts for all of the constraints on this view. 732f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * This includes size constraints imposed by the RelativeLayout as well as 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the View's desired dimension. 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childStart The left or top field of the child's layout params 7369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childEnd The right or bottom field of the child's layout params 7379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childSize The child's desired size (the width or height field of 7389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the child's layout params) 7399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param startMargin The left or top margin 7409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param endMargin The right or bottom margin 7419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param startPadding mPaddingLeft or mPaddingTop 7429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param endPadding mPaddingRight or mPaddingBottom 7439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mySize The width or height of this view (the RelativeLayout) 7449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return MeasureSpec for the child 7459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int getChildMeasureSpec(int childStart, int childEnd, 7479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childSize, int startMargin, int endMargin, int startPadding, 7489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int endPadding, int mySize) { 749517a00460365a5f9d4616f1216f13bc74974c488Alan Viverette int childSpecMode = 0; 750517a00460365a5f9d4616f1216f13bc74974c488Alan Viverette int childSpecSize = 0; 751517a00460365a5f9d4616f1216f13bc74974c488Alan Viverette 75228308e8494933baf6c28012d7599346633671337Chet Haase // Negative values in a mySize value in RelativeLayout 753517a00460365a5f9d4616f1216f13bc74974c488Alan Viverette // measurement is code for, "we got an unspecified mode in the 754517a00460365a5f9d4616f1216f13bc74974c488Alan Viverette // RelativeLayout's measure spec." 7557da4b73a236b7c72d1337696949df7a00776dd06Adam Powell if (mySize < 0 && !mAllowBrokenMeasureSpecs) { 75628308e8494933baf6c28012d7599346633671337Chet Haase if (childStart != VALUE_NOT_SET && childEnd != VALUE_NOT_SET) { 757517a00460365a5f9d4616f1216f13bc74974c488Alan Viverette // Constraints fixed both edges, so child has an exact size. 758517a00460365a5f9d4616f1216f13bc74974c488Alan Viverette childSpecSize = Math.max(0, childEnd - childStart); 759517a00460365a5f9d4616f1216f13bc74974c488Alan Viverette childSpecMode = MeasureSpec.EXACTLY; 760d5694f02d5de16580c3e6cc7babc2e0204715e0fAlan Viverette } else if (childSize >= 0) { 761d5694f02d5de16580c3e6cc7babc2e0204715e0fAlan Viverette // The child specified an exact size. 762d5694f02d5de16580c3e6cc7babc2e0204715e0fAlan Viverette childSpecSize = childSize; 763d5694f02d5de16580c3e6cc7babc2e0204715e0fAlan Viverette childSpecMode = MeasureSpec.EXACTLY; 764517a00460365a5f9d4616f1216f13bc74974c488Alan Viverette } else { 765517a00460365a5f9d4616f1216f13bc74974c488Alan Viverette // Allow the child to be whatever size it wants. 766517a00460365a5f9d4616f1216f13bc74974c488Alan Viverette childSpecSize = 0; 767517a00460365a5f9d4616f1216f13bc74974c488Alan Viverette childSpecMode = MeasureSpec.UNSPECIFIED; 768f16c7a97548cedccea291ffebc4388a7f15c9aa1Romain Guy } 769132a742b94b9716451ddef30cec20548b346f1b9Adam Powell 770517a00460365a5f9d4616f1216f13bc74974c488Alan Viverette return MeasureSpec.makeMeasureSpec(childSpecSize, childSpecMode); 771517a00460365a5f9d4616f1216f13bc74974c488Alan Viverette } 7729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Figure out start and end bounds. 7749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int tempStart = childStart; 7759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int tempEnd = childEnd; 7769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the view did not express a layout constraint for an edge, use 7789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // view's margins and our padding 77928308e8494933baf6c28012d7599346633671337Chet Haase if (tempStart == VALUE_NOT_SET) { 7809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project tempStart = startPadding + startMargin; 7819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 78228308e8494933baf6c28012d7599346633671337Chet Haase if (tempEnd == VALUE_NOT_SET) { 7839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project tempEnd = mySize - endPadding - endMargin; 7849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Figure out maximum size available to this view 7879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int maxAvailable = tempEnd - tempStart; 7889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 78928308e8494933baf6c28012d7599346633671337Chet Haase if (childStart != VALUE_NOT_SET && childEnd != VALUE_NOT_SET) { 7909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Constraints fixed both edges, so child must be an exact size 7919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecMode = MeasureSpec.EXACTLY; 7929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecSize = maxAvailable; 7939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 7949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childSize >= 0) { 7959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Child wanted an exact size. Give as much as possible 7969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecMode = MeasureSpec.EXACTLY; 7979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (maxAvailable >= 0) { 7999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We have a maxmum size in this dimension. 8009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecSize = Math.min(maxAvailable, childSize); 8019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 8029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We can grow in this dimension. 8039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecSize = childSize; 8049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 805980a938c1c9a6a5791a8240e5a1e6638ab28dc77Romain Guy } else if (childSize == LayoutParams.MATCH_PARENT) { 806f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio // Child wanted to be as big as possible. Give all available 8079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // space 8089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecMode = MeasureSpec.EXACTLY; 8099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecSize = maxAvailable; 8109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childSize == LayoutParams.WRAP_CONTENT) { 8119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Child wants to wrap content. Use AT_MOST 8129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to communicate available space if we know 8139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // our max size 8149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (maxAvailable >= 0) { 815f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio // We have a maximum size in this dimension. 8169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecMode = MeasureSpec.AT_MOST; 8179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecSize = maxAvailable; 8189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 8199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We can grow in this dimension. Child can be as big as it 8209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // wants 8219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecMode = MeasureSpec.UNSPECIFIED; 8229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecSize = 0; 8239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return MeasureSpec.makeMeasureSpec(childSpecSize, childSpecMode); 8289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 830f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy private boolean positionChildHorizontal(View child, LayoutParams params, int myWidth, 831f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy boolean wrapContent) { 832f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 833e56ffdc7b31b0937628609cc3bbaa15879023569Fabrice Di Meglio final int layoutDirection = getLayoutDirection(); 834f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio int[] rules = params.getRules(layoutDirection); 8359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 83628308e8494933baf6c28012d7599346633671337Chet Haase if (params.mLeft == VALUE_NOT_SET && params.mRight != VALUE_NOT_SET) { 8379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Right is fixed, but left varies 8389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mLeft = params.mRight - child.getMeasuredWidth(); 83928308e8494933baf6c28012d7599346633671337Chet Haase } else if (params.mLeft != VALUE_NOT_SET && params.mRight == VALUE_NOT_SET) { 8409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Left is fixed, but right varies 8419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mRight = params.mLeft + child.getMeasuredWidth(); 84228308e8494933baf6c28012d7599346633671337Chet Haase } else if (params.mLeft == VALUE_NOT_SET && params.mRight == VALUE_NOT_SET) { 8439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Both left and right vary 844f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (rules[CENTER_IN_PARENT] != 0 || rules[CENTER_HORIZONTAL] != 0) { 845f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (!wrapContent) { 846f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy centerHorizontal(child, params, myWidth); 847f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } else { 848f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy params.mLeft = mPaddingLeft + params.leftMargin; 849f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy params.mRight = params.mLeft + child.getMeasuredWidth(); 850f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 851f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy return true; 8529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 853f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio // This is the default case. For RTL we start from the right and for LTR we start 854f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio // from the left. This will give LEFT/TOP for LTR and RIGHT/TOP for RTL. 855f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio if (isLayoutRtl()) { 856f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio params.mRight = myWidth - mPaddingRight- params.rightMargin; 857f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio params.mLeft = params.mRight - child.getMeasuredWidth(); 858f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio } else { 859f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio params.mLeft = mPaddingLeft + params.leftMargin; 860f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio params.mRight = params.mLeft + child.getMeasuredWidth(); 861f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio } 8629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 864f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio return rules[ALIGN_PARENT_END] != 0; 865725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 866725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 867f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy private boolean positionChildVertical(View child, LayoutParams params, int myHeight, 868f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy boolean wrapContent) { 869f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 870725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy int[] rules = params.getRules(); 8719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 87228308e8494933baf6c28012d7599346633671337Chet Haase if (params.mTop == VALUE_NOT_SET && params.mBottom != VALUE_NOT_SET) { 8739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Bottom is fixed, but top varies 8749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mTop = params.mBottom - child.getMeasuredHeight(); 87528308e8494933baf6c28012d7599346633671337Chet Haase } else if (params.mTop != VALUE_NOT_SET && params.mBottom == VALUE_NOT_SET) { 8769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Top is fixed, but bottom varies 8779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mBottom = params.mTop + child.getMeasuredHeight(); 87828308e8494933baf6c28012d7599346633671337Chet Haase } else if (params.mTop == VALUE_NOT_SET && params.mBottom == VALUE_NOT_SET) { 8799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Both top and bottom vary 880f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (rules[CENTER_IN_PARENT] != 0 || rules[CENTER_VERTICAL] != 0) { 881f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (!wrapContent) { 882f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy centerVertical(child, params, myHeight); 883f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } else { 884f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy params.mTop = mPaddingTop + params.topMargin; 885f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy params.mBottom = params.mTop + child.getMeasuredHeight(); 886f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 887f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy return true; 8889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 8899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mTop = mPaddingTop + params.topMargin; 8909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mBottom = params.mTop + child.getMeasuredHeight(); 8919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 89342460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy return rules[ALIGN_PARENT_BOTTOM] != 0; 8949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 896547261320cb4bbb3e967246bc86578263d94e84dFabrice Di Meglio private void applyHorizontalSizeRules(LayoutParams childParams, int myWidth, int[] rules) { 8979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RelativeLayout.LayoutParams anchorParams; 8989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 89928308e8494933baf6c28012d7599346633671337Chet Haase // VALUE_NOT_SET indicates a "soft requirement" in that direction. For example: 90028308e8494933baf6c28012d7599346633671337Chet Haase // left=10, right=VALUE_NOT_SET means the view must start at 10, but can go as far as it 90128308e8494933baf6c28012d7599346633671337Chet Haase // wants to the right 90228308e8494933baf6c28012d7599346633671337Chet Haase // left=VALUE_NOT_SET, right=10 means the view must end at 10, but can go as far as it 90328308e8494933baf6c28012d7599346633671337Chet Haase // wants to the left 9049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // left=10, right=20 means the left and right ends are both fixed 90528308e8494933baf6c28012d7599346633671337Chet Haase childParams.mLeft = VALUE_NOT_SET; 90628308e8494933baf6c28012d7599346633671337Chet Haase childParams.mRight = VALUE_NOT_SET; 9079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, LEFT_OF); 9099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 9109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mRight = anchorParams.mLeft - (anchorParams.leftMargin + 9119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.rightMargin); 9129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[LEFT_OF] != 0) { 9139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (myWidth >= 0) { 9149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mRight = myWidth - mPaddingRight - childParams.rightMargin; 9159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, RIGHT_OF); 9199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 9209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mLeft = anchorParams.mRight + (anchorParams.rightMargin + 9219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.leftMargin); 9229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[RIGHT_OF] != 0) { 9239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mLeft = mPaddingLeft + childParams.leftMargin; 9249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, ALIGN_LEFT); 9279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 9289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mLeft = anchorParams.mLeft + childParams.leftMargin; 9299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[ALIGN_LEFT] != 0) { 9309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mLeft = mPaddingLeft + childParams.leftMargin; 9319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, ALIGN_RIGHT); 9349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 9359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mRight = anchorParams.mRight - childParams.rightMargin; 9369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[ALIGN_RIGHT] != 0) { 9379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (myWidth >= 0) { 9389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mRight = myWidth - mPaddingRight - childParams.rightMargin; 9399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9421b7c791adf6d5e113cd07fa1a9cbef310f79145aRomain Guy if (0 != rules[ALIGN_PARENT_LEFT]) { 9439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mLeft = mPaddingLeft + childParams.leftMargin; 9449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9461b7c791adf6d5e113cd07fa1a9cbef310f79145aRomain Guy if (0 != rules[ALIGN_PARENT_RIGHT]) { 9479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (myWidth >= 0) { 9489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mRight = myWidth - mPaddingRight - childParams.rightMargin; 9499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 951725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 952725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 953725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private void applyVerticalSizeRules(LayoutParams childParams, int myHeight) { 954725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy int[] rules = childParams.getRules(); 955725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy RelativeLayout.LayoutParams anchorParams; 9569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 95728308e8494933baf6c28012d7599346633671337Chet Haase childParams.mTop = VALUE_NOT_SET; 95828308e8494933baf6c28012d7599346633671337Chet Haase childParams.mBottom = VALUE_NOT_SET; 9599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, ABOVE); 9619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 9629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mBottom = anchorParams.mTop - (anchorParams.topMargin + 9639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.bottomMargin); 9649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[ABOVE] != 0) { 9659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (myHeight >= 0) { 9669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mBottom = myHeight - mPaddingBottom - childParams.bottomMargin; 9679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, BELOW); 9719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 9729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mTop = anchorParams.mBottom + (anchorParams.bottomMargin + 9739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.topMargin); 9749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[BELOW] != 0) { 9759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mTop = mPaddingTop + childParams.topMargin; 9769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, ALIGN_TOP); 9799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 9809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mTop = anchorParams.mTop + childParams.topMargin; 9819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[ALIGN_TOP] != 0) { 9829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mTop = mPaddingTop + childParams.topMargin; 9839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, ALIGN_BOTTOM); 9869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 9879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mBottom = anchorParams.mBottom - childParams.bottomMargin; 9889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[ALIGN_BOTTOM] != 0) { 9899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (myHeight >= 0) { 9909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mBottom = myHeight - mPaddingBottom - childParams.bottomMargin; 9919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9941b7c791adf6d5e113cd07fa1a9cbef310f79145aRomain Guy if (0 != rules[ALIGN_PARENT_TOP]) { 9959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mTop = mPaddingTop + childParams.topMargin; 9969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9981b7c791adf6d5e113cd07fa1a9cbef310f79145aRomain Guy if (0 != rules[ALIGN_PARENT_BOTTOM]) { 9999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (myHeight >= 0) { 10009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mBottom = myHeight - mPaddingBottom - childParams.bottomMargin; 10019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (rules[ALIGN_BASELINE] != 0) { 10059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mHasBaselineAlignedChild = true; 10069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View getRelatedView(int[] rules, int relation) { 10109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int id = rules[relation]; 10119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (id != 0) { 10121ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy DependencyGraph.Node node = mGraph.mKeyNodes.get(id); 1013a0fd1d742d8edaf6c7e79bdd16a9b0c44fda4503Romain Guy if (node == null) return null; 1014a0fd1d742d8edaf6c7e79bdd16a9b0c44fda4503Romain Guy View v = node.view; 10159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Find the first non-GONE view up the chain 10179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while (v.getVisibility() == View.GONE) { 101813705eda8cc065ee98feb94af649615579cd4a58Fabrice Di Meglio rules = ((LayoutParams) v.getLayoutParams()).getRules(v.getLayoutDirection()); 10191ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy node = mGraph.mKeyNodes.get((rules[relation])); 1020a0fd1d742d8edaf6c7e79bdd16a9b0c44fda4503Romain Guy if (node == null) return null; 1021a0fd1d742d8edaf6c7e79bdd16a9b0c44fda4503Romain Guy v = node.view; 10229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return v; 10259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 10289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private LayoutParams getRelatedViewParams(int[] rules, int relation) { 10319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getRelatedView(rules, relation); 10329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) { 10339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewGroup.LayoutParams params = v.getLayoutParams(); 10349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (params instanceof LayoutParams) { 10359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (LayoutParams) v.getLayoutParams(); 10369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 10399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int getRelatedViewBaseline(int[] rules, int relation) { 10429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getRelatedView(rules, relation); 10439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) { 10449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return v.getBaseline(); 10459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return -1; 10479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1049f16c7a97548cedccea291ffebc4388a7f15c9aa1Romain Guy private static void centerHorizontal(View child, LayoutParams params, int myWidth) { 10509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childWidth = child.getMeasuredWidth(); 10519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int left = (myWidth - childWidth) / 2; 10529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mLeft = left; 10549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mRight = left + childWidth; 10559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1057f16c7a97548cedccea291ffebc4388a7f15c9aa1Romain Guy private static void centerVertical(View child, LayoutParams params, int myHeight) { 10589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childHeight = child.getMeasuredHeight(); 10599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int top = (myHeight - childHeight) / 2; 10609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mTop = top; 10629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mBottom = top + childHeight; 10639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 10669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 10679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The layout has actually already been performed and the positions 10689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // cached. Apply the cached values to the children. 106913705eda8cc065ee98feb94af649615579cd4a58Fabrice Di Meglio final int count = getChildCount(); 10709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 10729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 10739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() != GONE) { 10749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RelativeLayout.LayoutParams st = 10759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (RelativeLayout.LayoutParams) child.getLayoutParams(); 10769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.layout(st.mLeft, st.mTop, st.mRight, st.mBottom); 10779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 10829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams generateLayoutParams(AttributeSet attrs) { 10839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new RelativeLayout.LayoutParams(getContext(), attrs); 10849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns a set of layout parameters with a width of 10889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup.LayoutParams#WRAP_CONTENT}, 10899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * a height of {@link android.view.ViewGroup.LayoutParams#WRAP_CONTENT} and no spanning. 10909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 10929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateDefaultLayoutParams() { 10939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT); 10949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Override to allow type-checking of LayoutParams. 10979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 10989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 10999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof RelativeLayout.LayoutParams; 11009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 11039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 11049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(p); 11059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 110775986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov @Override 110875986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) { 110975986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov if (mTopToBottomLeftToRightSet == null) { 111075986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov mTopToBottomLeftToRightSet = new TreeSet<View>(new TopToBottomLeftToRightComparator()); 111175986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 111275986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov 111375986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov // sort children top-to-bottom and left-to-right 111475986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov for (int i = 0, count = getChildCount(); i < count; i++) { 111575986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov mTopToBottomLeftToRightSet.add(getChildAt(i)); 111675986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 111775986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov 111875986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov for (View view : mTopToBottomLeftToRightSet) { 11190b0a41d8e26eaf0f1d9d922621494daf40964a9aSvetoslav Ganov if (view.getVisibility() == View.VISIBLE 11200b0a41d8e26eaf0f1d9d922621494daf40964a9aSvetoslav Ganov && view.dispatchPopulateAccessibilityEvent(event)) { 112175986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov mTopToBottomLeftToRightSet.clear(); 112275986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov return true; 112375986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 112475986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 112575986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov 112675986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov mTopToBottomLeftToRightSet.clear(); 112775986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov return false; 112875986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 112975986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov 11308a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 11318a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityEvent(AccessibilityEvent event) { 11328a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityEvent(event); 11338a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov event.setClassName(RelativeLayout.class.getName()); 11348a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 11358a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 11368a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 11378a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { 11388a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityNodeInfo(info); 11398a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov info.setClassName(RelativeLayout.class.getName()); 11408a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 11418a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 114275986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov /** 114375986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov * Compares two views in left-to-right and top-to-bottom fashion. 114475986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov */ 114575986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov private class TopToBottomLeftToRightComparator implements Comparator<View> { 114675986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov public int compare(View first, View second) { 114775986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov // top - bottom 114875986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov int topDifference = first.getTop() - second.getTop(); 114975986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov if (topDifference != 0) { 115075986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov return topDifference; 115175986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 115275986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov // left - right 115375986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov int leftDifference = first.getLeft() - second.getLeft(); 115475986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov if (leftDifference != 0) { 115575986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov return leftDifference; 115675986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 115775986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov // break tie by height 115875986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov int heightDiference = first.getHeight() - second.getHeight(); 115975986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov if (heightDiference != 0) { 116075986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov return heightDiference; 116175986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 116275986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov // break tie by width 116375986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov int widthDiference = first.getWidth() - second.getWidth(); 116475986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov if (widthDiference != 0) { 116575986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov return widthDiference; 116675986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 116775986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov return 0; 116875986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 116975986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 117075986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov 11719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Per-child layout information associated with RelativeLayout. 11739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignWithParentIfMissing 11759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_toLeftOf 11769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_toRightOf 11779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_above 11789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_below 11799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignBaseline 11809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignLeft 11819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignTop 11829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignRight 11839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignBottom 11849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignParentLeft 11859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignParentTop 11869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignParentRight 11879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignParentBottom 11889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_centerInParent 11899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_centerHorizontal 11909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_centerVertical 1191f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * @attr ref android.R.styleable#RelativeLayout_Layout_layout_toStartOf 1192f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * @attr ref android.R.styleable#RelativeLayout_Layout_layout_toEndOf 1193f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignStart 1194f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignEnd 1195f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignParentStart 1196f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignParentEnd 11979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class LayoutParams extends ViewGroup.MarginLayoutParams { 1199bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "layout", resolveId = true, indexMapping = { 1200c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ABOVE, to = "above"), 1201c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_BASELINE, to = "alignBaseline"), 1202c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_BOTTOM, to = "alignBottom"), 1203c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_LEFT, to = "alignLeft"), 1204c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_PARENT_BOTTOM, to = "alignParentBottom"), 1205c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_PARENT_LEFT, to = "alignParentLeft"), 1206c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_PARENT_RIGHT, to = "alignParentRight"), 1207c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_PARENT_TOP, to = "alignParentTop"), 1208c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_RIGHT, to = "alignRight"), 1209c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_TOP, to = "alignTop"), 1210c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = BELOW, to = "below"), 1211c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = CENTER_HORIZONTAL, to = "centerHorizontal"), 1212c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = CENTER_IN_PARENT, to = "center"), 1213c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = CENTER_VERTICAL, to = "centerVertical"), 1214c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = LEFT_OF, to = "leftOf"), 1215f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio @ViewDebug.IntToString(from = RIGHT_OF, to = "rightOf"), 1216f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio @ViewDebug.IntToString(from = ALIGN_START, to = "alignStart"), 1217f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio @ViewDebug.IntToString(from = ALIGN_END, to = "alignEnd"), 1218f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio @ViewDebug.IntToString(from = ALIGN_PARENT_START, to = "alignParentStart"), 1219f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio @ViewDebug.IntToString(from = ALIGN_PARENT_END, to = "alignParentEnd"), 1220f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio @ViewDebug.IntToString(from = START_OF, to = "startOf"), 1221f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio @ViewDebug.IntToString(from = END_OF, to = "endOf") 1222105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project }, mapping = { 1223105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project @ViewDebug.IntToString(from = TRUE, to = "true"), 1224a1f3e4aef19882b4b81075d9205bd363efe1e66dRomain Guy @ViewDebug.IntToString(from = 0, to = "false/NO_ID") 1225105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project }) 1226f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio 12279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int[] mRules = new int[VERB_COUNT]; 1228f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio private int[] mInitialRules = new int[VERB_COUNT]; 1229c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project 12309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLeft, mTop, mRight, mBottom; 12319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1232f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio private boolean mRulesChanged = false; 1233c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio private boolean mIsRtlCompatibilityMode = false; 1234f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio 12359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When true, uses the parent as the anchor if the anchor doesn't exist or if 12379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the anchor's visibility is GONE. 12389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1239bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "layout") 12409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean alignWithParent; 12419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(Context c, AttributeSet attrs) { 12439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(c, attrs); 12449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = c.obtainStyledAttributes(attrs, 12469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.RelativeLayout_Layout); 12479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1248c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio final int targetSdkVersion = c.getApplicationInfo().targetSdkVersion; 1249c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mIsRtlCompatibilityMode = (targetSdkVersion < JELLY_BEAN_MR1 || 1250c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio !c.getApplicationInfo().hasRtlSupport()); 1251c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio 12529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] rules = mRules; 1253f16c7a97548cedccea291ffebc4388a7f15c9aa1Romain Guy //noinspection MismatchedReadAndWriteOfArray 1254f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio final int[] initialRules = mInitialRules; 12559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int N = a.getIndexCount(); 12579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < N; i++) { 12589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int attr = a.getIndex(i); 12599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (attr) { 12609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignWithParentIfMissing: 12619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project alignWithParent = a.getBoolean(attr, false); 12629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 12639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_toLeftOf: 12649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[LEFT_OF] = a.getResourceId(attr, 0); 12659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 12669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_toRightOf: 12679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[RIGHT_OF] = a.getResourceId(attr, 0); 12689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 12699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_above: 12709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ABOVE] = a.getResourceId(attr, 0); 12719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 12729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_below: 12739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[BELOW] = a.getResourceId(attr, 0); 12749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 12759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignBaseline: 12769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_BASELINE] = a.getResourceId(attr, 0); 12779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 12789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignLeft: 12799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_LEFT] = a.getResourceId(attr, 0); 12809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 12819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignTop: 12829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_TOP] = a.getResourceId(attr, 0); 12839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 12849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignRight: 12859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_RIGHT] = a.getResourceId(attr, 0); 12869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 12879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignBottom: 12889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_BOTTOM] = a.getResourceId(attr, 0); 12899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 12909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignParentLeft: 12919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_PARENT_LEFT] = a.getBoolean(attr, false) ? TRUE : 0; 12929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 12939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignParentTop: 12949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_PARENT_TOP] = a.getBoolean(attr, false) ? TRUE : 0; 12959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 12969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignParentRight: 12979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_PARENT_RIGHT] = a.getBoolean(attr, false) ? TRUE : 0; 12989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 12999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignParentBottom: 13009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_PARENT_BOTTOM] = a.getBoolean(attr, false) ? TRUE : 0; 13019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 13029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_centerInParent: 13039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[CENTER_IN_PARENT] = a.getBoolean(attr, false) ? TRUE : 0; 13049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 13059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_centerHorizontal: 13069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[CENTER_HORIZONTAL] = a.getBoolean(attr, false) ? TRUE : 0; 13079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 13089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_centerVertical: 13099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[CENTER_VERTICAL] = a.getBoolean(attr, false) ? TRUE : 0; 13109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 1311f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio case com.android.internal.R.styleable.RelativeLayout_Layout_layout_toStartOf: 1312f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio rules[START_OF] = a.getResourceId(attr, 0); 1313f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio break; 1314f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio case com.android.internal.R.styleable.RelativeLayout_Layout_layout_toEndOf: 1315f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio rules[END_OF] = a.getResourceId(attr, 0); 1316f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio break; 1317f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignStart: 1318f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio rules[ALIGN_START] = a.getResourceId(attr, 0); 1319f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio break; 1320f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignEnd: 1321f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio rules[ALIGN_END] = a.getResourceId(attr, 0); 1322f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio break; 1323f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignParentStart: 1324f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio rules[ALIGN_PARENT_START] = a.getBoolean(attr, false) ? TRUE : 0; 1325f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio break; 1326f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignParentEnd: 1327f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio rules[ALIGN_PARENT_END] = a.getBoolean(attr, false) ? TRUE : 0; 1328f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio break; 13299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13310072f64939b37a4d84940656c2180ad2e0594ff4Fabrice Di Meglio mRulesChanged = true; 1332f16c7a97548cedccea291ffebc4388a7f15c9aa1Romain Guy System.arraycopy(rules, LEFT_OF, initialRules, LEFT_OF, VERB_COUNT); 1333f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio 13349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 13359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h) { 13389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 13399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 13439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams source) { 13459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 13469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 13509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.MarginLayoutParams source) { 13529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 13539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13550a0e155cadecd32599a7354a1836232c885f4bd2Alan Viverette /** 13560a0e155cadecd32599a7354a1836232c885f4bd2Alan Viverette * Copy constructor. Clones the width, height, margin values, and rules 13570a0e155cadecd32599a7354a1836232c885f4bd2Alan Viverette * of the source. 13580a0e155cadecd32599a7354a1836232c885f4bd2Alan Viverette * 13590a0e155cadecd32599a7354a1836232c885f4bd2Alan Viverette * @param source The layout params to copy from. 13600a0e155cadecd32599a7354a1836232c885f4bd2Alan Viverette */ 13610a0e155cadecd32599a7354a1836232c885f4bd2Alan Viverette public LayoutParams(LayoutParams source) { 13620a0e155cadecd32599a7354a1836232c885f4bd2Alan Viverette super(source); 13630a0e155cadecd32599a7354a1836232c885f4bd2Alan Viverette 13640a0e155cadecd32599a7354a1836232c885f4bd2Alan Viverette this.mIsRtlCompatibilityMode = source.mIsRtlCompatibilityMode; 13650a0e155cadecd32599a7354a1836232c885f4bd2Alan Viverette this.mRulesChanged = source.mRulesChanged; 13660a0e155cadecd32599a7354a1836232c885f4bd2Alan Viverette this.alignWithParent = source.alignWithParent; 13670a0e155cadecd32599a7354a1836232c885f4bd2Alan Viverette 13680a0e155cadecd32599a7354a1836232c885f4bd2Alan Viverette System.arraycopy(source.mRules, LEFT_OF, this.mRules, LEFT_OF, VERB_COUNT); 13690a0e155cadecd32599a7354a1836232c885f4bd2Alan Viverette System.arraycopy( 13700a0e155cadecd32599a7354a1836232c885f4bd2Alan Viverette source.mInitialRules, LEFT_OF, this.mInitialRules, LEFT_OF, VERB_COUNT); 13710a0e155cadecd32599a7354a1836232c885f4bd2Alan Viverette } 13720a0e155cadecd32599a7354a1836232c885f4bd2Alan Viverette 13739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 13749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String debug(String output) { 13759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return output + "ViewGroup.LayoutParams={ width=" + sizeToString(width) + 13769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ", height=" + sizeToString(height) + " }"; 13779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Adds a layout rule to be interpreted by the RelativeLayout. This 13819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * method should only be used for constraints that don't refer to another sibling 13829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (e.g., CENTER_IN_PARENT) or take a boolean value ({@link RelativeLayout#TRUE} 1383f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * for true or 0 for false). To specify a verb that takes a subject, use 13849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #addRule(int, int)} instead. 13859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param verb One of the verbs defined by 13879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.RelativeLayout RelativeLayout}, such as 13889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * ALIGN_WITH_PARENT_LEFT. 13899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #addRule(int, int) 13909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addRule(int verb) { 13929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRules[verb] = TRUE; 1393f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio mInitialRules[verb] = TRUE; 1394f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio mRulesChanged = true; 13959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Adds a layout rule to be interpreted by the RelativeLayout. Use this for 13999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * verbs that take a target, such as a sibling (ALIGN_RIGHT) or a boolean 14009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * value (VISIBLE). 14019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param verb One of the verbs defined by 14039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.RelativeLayout RelativeLayout}, such as 14049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * ALIGN_WITH_PARENT_LEFT. 14059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param anchor The id of another view to use as an anchor, 14068f8a11b7fa26e603519131001ab46596aa30ba1aNewton Allen * or a boolean value (represented as {@link RelativeLayout#TRUE} 14079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * for true or 0 for false). For verbs that don't refer to another sibling 14089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (for example, ALIGN_WITH_PARENT_BOTTOM) just use -1. 14099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #addRule(int) 14109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addRule(int verb, int anchor) { 14129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRules[verb] = anchor; 1413f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio mInitialRules[verb] = anchor; 1414f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio mRulesChanged = true; 1415f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio } 1416f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio 1417a4c1030870d8c91b6d871922c3e6962323700f25Fabrice Di Meglio /** 1418a4c1030870d8c91b6d871922c3e6962323700f25Fabrice Di Meglio * Removes a layout rule to be interpreted by the RelativeLayout. 1419a4c1030870d8c91b6d871922c3e6962323700f25Fabrice Di Meglio * 1420a4c1030870d8c91b6d871922c3e6962323700f25Fabrice Di Meglio * @param verb One of the verbs defined by 1421a4c1030870d8c91b6d871922c3e6962323700f25Fabrice Di Meglio * {@link android.widget.RelativeLayout RelativeLayout}, such as 1422a4c1030870d8c91b6d871922c3e6962323700f25Fabrice Di Meglio * ALIGN_WITH_PARENT_LEFT. 1423a4c1030870d8c91b6d871922c3e6962323700f25Fabrice Di Meglio * @see #addRule(int) 1424a4c1030870d8c91b6d871922c3e6962323700f25Fabrice Di Meglio * @see #addRule(int, int) 1425a4c1030870d8c91b6d871922c3e6962323700f25Fabrice Di Meglio */ 1426a4c1030870d8c91b6d871922c3e6962323700f25Fabrice Di Meglio public void removeRule(int verb) { 1427a4c1030870d8c91b6d871922c3e6962323700f25Fabrice Di Meglio mRules[verb] = 0; 1428a4c1030870d8c91b6d871922c3e6962323700f25Fabrice Di Meglio mInitialRules[verb] = 0; 1429a4c1030870d8c91b6d871922c3e6962323700f25Fabrice Di Meglio mRulesChanged = true; 1430a4c1030870d8c91b6d871922c3e6962323700f25Fabrice Di Meglio } 1431a4c1030870d8c91b6d871922c3e6962323700f25Fabrice Di Meglio 1432f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio private boolean hasRelativeRules() { 1433f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio return (mInitialRules[START_OF] != 0 || mInitialRules[END_OF] != 0 || 1434f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio mInitialRules[ALIGN_START] != 0 || mInitialRules[ALIGN_END] != 0 || 1435f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio mInitialRules[ALIGN_PARENT_START] != 0 || mInitialRules[ALIGN_PARENT_END] != 0); 1436f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio } 1437f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio 1438c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // The way we are resolving rules depends on the layout direction and if we are pre JB MR1 1439c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // or not. 1440c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // 1441c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // If we are pre JB MR1 (said as "RTL compatibility mode"), "left"/"right" rules are having 1442c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // predominance over any "start/end" rules that could have been defined. A special case: 1443c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // if no "left"/"right" rule has been defined and "start"/"end" rules are defined then we 1444c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // resolve those "start"/"end" rules to "left"/"right" respectively. 1445c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // 1446c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // If we are JB MR1+, then "start"/"end" rules are having predominance over "left"/"right" 1447c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // rules. If no "start"/"end" rule is defined then we use "left"/"right" rules. 1448c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // 1449c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // In all cases, the result of the resolution should clear the "start"/"end" rules to leave 1450c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // only the "left"/"right" rules at the end. 1451f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio private void resolveRules(int layoutDirection) { 1452f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio final boolean isLayoutRtl = (layoutDirection == View.LAYOUT_DIRECTION_RTL); 1453c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio 1454f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio // Reset to initial state 1455f16c7a97548cedccea291ffebc4388a7f15c9aa1Romain Guy System.arraycopy(mInitialRules, LEFT_OF, mRules, LEFT_OF, VERB_COUNT); 1456c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio 1457c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // Apply rules depending on direction and if we are in RTL compatibility mode 1458c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio if (mIsRtlCompatibilityMode) { 1459c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio if (mRules[ALIGN_START] != 0) { 1460c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio if (mRules[ALIGN_LEFT] == 0) { 1461c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // "left" rule is not defined but "start" rule is: use the "start" rule as 1462c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // the "left" rule 1463c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[ALIGN_LEFT] = mRules[ALIGN_START]; 1464c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio } 1465c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[ALIGN_START] = 0; 1466c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio } 1467c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio 1468c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio if (mRules[ALIGN_END] != 0) { 1469c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio if (mRules[ALIGN_RIGHT] == 0) { 1470c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // "right" rule is not defined but "end" rule is: use the "end" rule as the 1471c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // "right" rule 1472c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[ALIGN_RIGHT] = mRules[ALIGN_END]; 1473c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio } 1474c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[ALIGN_END] = 0; 1475c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio } 1476c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio 1477c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio if (mRules[START_OF] != 0) { 1478c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio if (mRules[LEFT_OF] == 0) { 1479c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // "left" rule is not defined but "start" rule is: use the "start" rule as 1480c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // the "left" rule 1481c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[LEFT_OF] = mRules[START_OF]; 1482c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio } 1483c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[START_OF] = 0; 1484c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio } 1485c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio 1486c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio if (mRules[END_OF] != 0) { 1487c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio if (mRules[RIGHT_OF] == 0) { 1488c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // "right" rule is not defined but "end" rule is: use the "end" rule as the 1489c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // "right" rule 1490c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[RIGHT_OF] = mRules[END_OF]; 1491c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio } 1492c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[END_OF] = 0; 1493c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio } 1494c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio 1495c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio if (mRules[ALIGN_PARENT_START] != 0) { 1496c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio if (mRules[ALIGN_PARENT_LEFT] == 0) { 1497c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // "left" rule is not defined but "start" rule is: use the "start" rule as 1498c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // the "left" rule 1499c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[ALIGN_PARENT_LEFT] = mRules[ALIGN_PARENT_START]; 1500c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio } 1501c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[ALIGN_PARENT_START] = 0; 1502c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio } 1503c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio 1504567e44797bca5fd12beb213b90d25cd40b55c8dbAlan Viverette if (mRules[ALIGN_PARENT_END] != 0) { 1505c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio if (mRules[ALIGN_PARENT_RIGHT] == 0) { 1506c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // "right" rule is not defined but "end" rule is: use the "end" rule as the 1507c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // "right" rule 1508c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[ALIGN_PARENT_RIGHT] = mRules[ALIGN_PARENT_END]; 1509c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio } 1510c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[ALIGN_PARENT_END] = 0; 1511c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio } 1512c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio } else { 1513c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // JB MR1+ case 1514c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio if ((mRules[ALIGN_START] != 0 || mRules[ALIGN_END] != 0) && 1515c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio (mRules[ALIGN_LEFT] != 0 || mRules[ALIGN_RIGHT] != 0)) { 1516c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // "start"/"end" rules take precedence over "left"/"right" rules 1517c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[ALIGN_LEFT] = 0; 1518c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[ALIGN_RIGHT] = 0; 1519c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio } 1520c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio if (mRules[ALIGN_START] != 0) { 1521c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // "start" rule resolved to "left" or "right" depending on the direction 1522c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[isLayoutRtl ? ALIGN_RIGHT : ALIGN_LEFT] = mRules[ALIGN_START]; 1523c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[ALIGN_START] = 0; 1524c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio } 1525c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio if (mRules[ALIGN_END] != 0) { 1526c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // "end" rule resolved to "left" or "right" depending on the direction 1527c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[isLayoutRtl ? ALIGN_LEFT : ALIGN_RIGHT] = mRules[ALIGN_END]; 1528c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[ALIGN_END] = 0; 1529c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio } 1530c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio 1531c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio if ((mRules[START_OF] != 0 || mRules[END_OF] != 0) && 1532c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio (mRules[LEFT_OF] != 0 || mRules[RIGHT_OF] != 0)) { 1533c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // "start"/"end" rules take precedence over "left"/"right" rules 1534c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[LEFT_OF] = 0; 1535c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[RIGHT_OF] = 0; 1536c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio } 1537c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio if (mRules[START_OF] != 0) { 1538c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // "start" rule resolved to "left" or "right" depending on the direction 1539c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[isLayoutRtl ? RIGHT_OF : LEFT_OF] = mRules[START_OF]; 1540c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[START_OF] = 0; 1541c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio } 1542c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio if (mRules[END_OF] != 0) { 1543c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // "end" rule resolved to "left" or "right" depending on the direction 1544c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[isLayoutRtl ? LEFT_OF : RIGHT_OF] = mRules[END_OF]; 1545c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[END_OF] = 0; 1546c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio } 1547c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio 1548c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio if ((mRules[ALIGN_PARENT_START] != 0 || mRules[ALIGN_PARENT_END] != 0) && 1549c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio (mRules[ALIGN_PARENT_LEFT] != 0 || mRules[ALIGN_PARENT_RIGHT] != 0)) { 1550c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // "start"/"end" rules take precedence over "left"/"right" rules 1551c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[ALIGN_PARENT_LEFT] = 0; 1552c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[ALIGN_PARENT_RIGHT] = 0; 1553c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio } 1554c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio if (mRules[ALIGN_PARENT_START] != 0) { 1555c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // "start" rule resolved to "left" or "right" depending on the direction 1556c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[isLayoutRtl ? ALIGN_PARENT_RIGHT : ALIGN_PARENT_LEFT] = mRules[ALIGN_PARENT_START]; 1557c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[ALIGN_PARENT_START] = 0; 1558c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio } 1559c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio if (mRules[ALIGN_PARENT_END] != 0) { 1560c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // "end" rule resolved to "left" or "right" depending on the direction 1561c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[isLayoutRtl ? ALIGN_PARENT_LEFT : ALIGN_PARENT_RIGHT] = mRules[ALIGN_PARENT_END]; 1562c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[ALIGN_PARENT_END] = 0; 1563c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio } 1564f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio } 1565f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio mRulesChanged = false; 1566f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio } 1567f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio 1568f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio /** 1569f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * Retrieves a complete list of all supported rules, where the index is the rule 1570f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * verb, and the element value is the value specified, or "false" if it was never 1571f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * set. If there are relative rules defined (*_START / *_END), they will be resolved 1572f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * depending on the layout direction. 1573f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * 1574f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * @param layoutDirection the direction of the layout. 1575f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * Should be either {@link View#LAYOUT_DIRECTION_LTR} 1576f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * or {@link View#LAYOUT_DIRECTION_RTL} 1577f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * @return the supported rules 1578f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * @see #addRule(int, int) 1579f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * 1580f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * @hide 1581f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio */ 1582f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio public int[] getRules(int layoutDirection) { 1583f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio if (hasRelativeRules() && 1584f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio (mRulesChanged || layoutDirection != getLayoutDirection())) { 1585f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio resolveRules(layoutDirection); 1586f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio if (layoutDirection != getLayoutDirection()) { 1587f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio setLayoutDirection(layoutDirection); 1588f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio } 1589f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio } 1590f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio return mRules; 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Retrieves a complete list of all supported rules, where the index is the rule 15959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * verb, and the element value is the value specified, or "false" if it was never 1596f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * set. There will be no resolution of relative rules done. 15979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the supported rules 15999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #addRule(int, int) 16009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int[] getRules() { 16029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mRules; 16039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1604f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio 1605f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio @Override 16062918ab6c3258639148b8a5c78a34483af195246eFabrice Di Meglio public void resolveLayoutDirection(int layoutDirection) { 1607f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio final boolean isLayoutRtl = isLayoutRtl(); 1608f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio if (hasRelativeRules() && layoutDirection != getLayoutDirection()) { 1609f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio resolveRules(layoutDirection); 1610f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio } 1611f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio // This will set the layout direction 16122918ab6c3258639148b8a5c78a34483af195246eFabrice Di Meglio super.resolveLayoutDirection(layoutDirection); 1613f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio } 16149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1615725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1616725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private static class DependencyGraph { 1617725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 16181ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy * List of all views in the graph. 16191ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy */ 16201ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy private ArrayList<Node> mNodes = new ArrayList<Node>(); 16211ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy 16221ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy /** 1623725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * List of nodes in the graph. Each node is identified by its 1624725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * view id (see View#getId()). 1625725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 16261ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy private SparseArray<Node> mKeyNodes = new SparseArray<Node>(); 1627725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1628725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1629725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * Temporary data structure used to build the list of roots 1630725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * for this graph. 1631725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1632bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy private ArrayDeque<Node> mRoots = new ArrayDeque<Node>(); 1633725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1634725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1635725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * Clears the graph. 1636725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1637725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy void clear() { 16381ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final ArrayList<Node> nodes = mNodes; 1639725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final int count = nodes.size(); 1640725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1641725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 16421ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy nodes.get(i).release(); 1643725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1644725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy nodes.clear(); 1645725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 16461ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy mKeyNodes.clear(); 1647725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy mRoots.clear(); 1648725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1649725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1650725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1651725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * Adds a view to the graph. 1652725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * 1653725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * @param view The view to be added as a node to the graph. 1654725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1655725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy void add(View view) { 16561ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final int id = view.getId(); 16571ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final Node node = Node.acquire(view); 16581ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy 16591ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy if (id != View.NO_ID) { 16601ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy mKeyNodes.put(id, node); 16611ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy } 16621ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy 16631ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy mNodes.add(node); 1664725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1665725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1666725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1667725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * Builds a sorted list of views. The sorting order depends on the dependencies 1668725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * between the view. For instance, if view C needs view A to be processed first 1669725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * and view A needs view B to be processed first, the dependency graph 1670725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * is: B -> A -> C. The sorted array will contain views B, A and C in this order. 1671725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * 1672725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * @param sorted The sorted list of views. The length of this array must 1673725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * be equal to getChildCount(). 1674725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * @param rules The list of rules to take into account. 1675725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1676725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy void getSortedViews(View[] sorted, int... rules) { 1677bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy final ArrayDeque<Node> roots = findRoots(rules); 1678725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy int index = 0; 1679725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1680bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy Node node; 1681bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy while ((node = roots.pollLast()) != null) { 1682725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final View view = node.view; 1683725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final int key = view.getId(); 1684725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1685725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy sorted[index++] = view; 1686725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 16876876b4fb9082fe525d6edb59a834bb0e7c35ca39Romain Guy final ArrayMap<Node, DependencyGraph> dependents = node.dependents; 16886876b4fb9082fe525d6edb59a834bb0e7c35ca39Romain Guy final int count = dependents.size(); 16896876b4fb9082fe525d6edb59a834bb0e7c35ca39Romain Guy for (int i = 0; i < count; i++) { 16906876b4fb9082fe525d6edb59a834bb0e7c35ca39Romain Guy final Node dependent = dependents.keyAt(i); 1691725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final SparseArray<Node> dependencies = dependent.dependencies; 1692725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1693725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy dependencies.remove(key); 1694725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (dependencies.size() == 0) { 1695725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy roots.add(dependent); 1696725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1697725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1698725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1699725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1700725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (index < sorted.length) { 1701725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy throw new IllegalStateException("Circular dependencies cannot exist" 1702725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy + " in RelativeLayout"); 1703725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1704725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1705725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1706725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1707725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * Finds the roots of the graph. A root is a node with no dependency and 1708725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * with [0..n] dependents. 1709725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * 1710725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * @param rulesFilter The list of rules to consider when building the 1711725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * dependencies 1712725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * 1713725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * @return A list of node, each being a root of the graph 1714725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1715bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy private ArrayDeque<Node> findRoots(int[] rulesFilter) { 17161ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final SparseArray<Node> keyNodes = mKeyNodes; 17171ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final ArrayList<Node> nodes = mNodes; 1718725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final int count = nodes.size(); 1719725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1720725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // Find roots can be invoked several times, so make sure to clear 1721725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // all dependents and dependencies before running the algorithm 1722725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 17231ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final Node node = nodes.get(i); 1724725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy node.dependents.clear(); 1725725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy node.dependencies.clear(); 1726725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1727725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1728725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // Builds up the dependents and dependencies for each node of the graph 1729725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 17301ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final Node node = nodes.get(i); 1731725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1732725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final LayoutParams layoutParams = (LayoutParams) node.view.getLayoutParams(); 1733725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final int[] rules = layoutParams.mRules; 1734725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final int rulesCount = rulesFilter.length; 1735725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1736725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // Look only the the rules passed in parameter, this way we build only the 1737725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // dependencies for a specific set of rules 1738725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int j = 0; j < rulesCount; j++) { 1739725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final int rule = rules[rulesFilter[j]]; 1740725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (rule > 0) { 1741725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // The node this node depends on 17421ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final Node dependency = keyNodes.get(rule); 1743da3003e1d71d66a1c936489025f8db314a2a4588Romain Guy // Skip unknowns and self dependencies 1744da3003e1d71d66a1c936489025f8db314a2a4588Romain Guy if (dependency == null || dependency == node) { 1745b8f8de85160b0a072158b45320e9fc2adba545f5Romain Guy continue; 1746b8f8de85160b0a072158b45320e9fc2adba545f5Romain Guy } 1747725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // Add the current node as a dependent 1748bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy dependency.dependents.put(node, this); 1749725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // Add a dependency to the current node 1750725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy node.dependencies.put(rule, dependency); 1751725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1752725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1753725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1754725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1755bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy final ArrayDeque<Node> roots = mRoots; 1756725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy roots.clear(); 1757725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1758725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // Finds all the roots in the graph: all nodes with no dependencies 1759725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 17601ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final Node node = nodes.get(i); 1761bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy if (node.dependencies.size() == 0) roots.addLast(node); 1762725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1763725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1764725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy return roots; 1765725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1766725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1767725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1768725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * A node in the dependency graph. A node is a view, its list of dependencies 1769725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * and its list of dependents. 1770725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * 1771725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * A node with no dependent is considered a root of the graph. 1772725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1773abae2a1b891772d36d8f781adfcc8969e551691fSvetoslav Ganov static class Node { 1774725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1775725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * The view representing this node in the layout. 1776725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1777725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy View view; 1778725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1779725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1780725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * The list of dependents for this node; a dependent is a node 1781725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * that needs this node to be processed first. 1782725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 17836876b4fb9082fe525d6edb59a834bb0e7c35ca39Romain Guy final ArrayMap<Node, DependencyGraph> dependents = 17846876b4fb9082fe525d6edb59a834bb0e7c35ca39Romain Guy new ArrayMap<Node, DependencyGraph>(); 1785725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1786725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1787725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * The list of dependencies for this node. 1788725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1789725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final SparseArray<Node> dependencies = new SparseArray<Node>(); 1790725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1791725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /* 1792725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * START POOL IMPLEMENTATION 1793725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1794baac46339da03aed166e8a4240ad063caad019adRomain Guy // The pool is static, so all nodes instances are shared across 1795baac46339da03aed166e8a4240ad063caad019adRomain Guy // activities, that's why we give it a rather high limit 1796baac46339da03aed166e8a4240ad063caad019adRomain Guy private static final int POOL_LIMIT = 100; 17976876b4fb9082fe525d6edb59a834bb0e7c35ca39Romain Guy private static final SynchronizedPool<Node> sPool = 17986876b4fb9082fe525d6edb59a834bb0e7c35ca39Romain Guy new SynchronizedPool<Node>(POOL_LIMIT); 17998643aa0179e598e78d938c59035389054535a229Svetoslav Ganov 1800725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy static Node acquire(View view) { 1801abae2a1b891772d36d8f781adfcc8969e551691fSvetoslav Ganov Node node = sPool.acquire(); 1802abae2a1b891772d36d8f781adfcc8969e551691fSvetoslav Ganov if (node == null) { 1803abae2a1b891772d36d8f781adfcc8969e551691fSvetoslav Ganov node = new Node(); 1804abae2a1b891772d36d8f781adfcc8969e551691fSvetoslav Ganov } 1805725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy node.view = view; 1806725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy return node; 1807725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1808725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1809725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy void release() { 1810725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy view = null; 1811725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy dependents.clear(); 1812725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy dependencies.clear(); 1813725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1814725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy sPool.release(this); 1815725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1816725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /* 1817725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * END POOL IMPLEMENTATION 1818725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1819725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1820725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 18219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1822