RelativeLayout.java revision c44d880c508ded633b61930e1964df70876ec42f
19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2006 The Android Open Source Project 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * you may not use this file except in compliance with the License. 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * You may obtain a copy of the License at 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See the License for the specific language governing permissions and 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * limitations under the License. 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpackage android.widget; 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 199e3b002d3f9141d54948a65e0330fdcd09e75a30Fabrice Di Meglioimport com.android.internal.R; 209e3b002d3f9141d54948a65e0330fdcd09e75a30Fabrice Di Meglio 21bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guyimport java.util.ArrayDeque; 229e3b002d3f9141d54948a65e0330fdcd09e75a30Fabrice Di Meglioimport java.util.ArrayList; 239e3b002d3f9141d54948a65e0330fdcd09e75a30Fabrice Di Meglioimport java.util.Comparator; 24bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guyimport java.util.HashMap; 259e3b002d3f9141d54948a65e0330fdcd09e75a30Fabrice Di Meglioimport java.util.SortedSet; 269e3b002d3f9141d54948a65e0330fdcd09e75a30Fabrice Di Meglioimport java.util.TreeSet; 279e3b002d3f9141d54948a65e0330fdcd09e75a30Fabrice Di Meglio 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.Context; 29725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guyimport android.content.res.Resources; 306a03640539405afbdefe72894759281b98aa6e6fFabrice Di Meglioimport android.content.res.TypedArray; 3175986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganovimport android.graphics.Rect; 327da4b73a236b7c72d1337696949df7a00776dd06Adam Powellimport android.os.Build; 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.AttributeSet; 34abae2a1b891772d36d8f781adfcc8969e551691fSvetoslav Ganovimport android.util.Pools.SimplePool; 356a03640539405afbdefe72894759281b98aa6e6fFabrice Di Meglioimport android.util.SparseArray; 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.Gravity; 3775986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganovimport android.view.View; 38c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Projectimport android.view.ViewDebug; 3975986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganovimport android.view.ViewGroup; 40306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglioimport android.view.WindowManager; 4175986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganovimport android.view.accessibility.AccessibilityEvent; 428a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganovimport android.view.accessibility.AccessibilityNodeInfo; 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.widget.RemoteViews.RemoteView; 446a03640539405afbdefe72894759281b98aa6e6fFabrice Di Meglio 45c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglioimport static android.os.Build.VERSION_CODES.JELLY_BEAN_MR1; 466a03640539405afbdefe72894759281b98aa6e6fFabrice Di Meglioimport static android.util.Log.d; 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A Layout where the positions of the children can be described in relation to each other or to the 50520c4204fb9d4f2a7a79dcb5d171e681b7bc6a07Romain Guy * parent. 51a1f3e4aef19882b4b81075d9205bd363efe1e66dRomain Guy * 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p> 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that you cannot have a circular dependency between the size of the RelativeLayout and the 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position of its children. For example, you cannot have a RelativeLayout whose height is set to 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup.LayoutParams#WRAP_CONTENT WRAP_CONTENT} and a child set to 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #ALIGN_PARENT_BOTTOM}. 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * </p> 58a1f3e4aef19882b4b81075d9205bd363efe1e66dRomain Guy * 592c8cc972c3b03b76a80db517dde1e68895bbdd66Adam Powell * <p><strong>Note:</strong> In platform version 17 and lower, RelativeLayout was affected by 602c8cc972c3b03b76a80db517dde1e68895bbdd66Adam Powell * a measurement bug that could cause child views to be measured with incorrect 612c8cc972c3b03b76a80db517dde1e68895bbdd66Adam Powell * {@link android.view.View.MeasureSpec MeasureSpec} values. (See 622c8cc972c3b03b76a80db517dde1e68895bbdd66Adam Powell * {@link android.view.View.MeasureSpec#makeMeasureSpec(int, int) MeasureSpec.makeMeasureSpec} 632c8cc972c3b03b76a80db517dde1e68895bbdd66Adam Powell * for more details.) This was triggered when a RelativeLayout container was placed in 642c8cc972c3b03b76a80db517dde1e68895bbdd66Adam Powell * a scrolling container, such as a ScrollView or HorizontalScrollView. If a custom view 652c8cc972c3b03b76a80db517dde1e68895bbdd66Adam Powell * not equipped to properly measure with the MeasureSpec mode 662c8cc972c3b03b76a80db517dde1e68895bbdd66Adam Powell * {@link android.view.View.MeasureSpec#UNSPECIFIED UNSPECIFIED} was placed in a RelativeLayout, 672c8cc972c3b03b76a80db517dde1e68895bbdd66Adam Powell * this would silently work anyway as RelativeLayout would pass a very large 682c8cc972c3b03b76a80db517dde1e68895bbdd66Adam Powell * {@link android.view.View.MeasureSpec#AT_MOST AT_MOST} MeasureSpec instead.</p> 692c8cc972c3b03b76a80db517dde1e68895bbdd66Adam Powell * 702c8cc972c3b03b76a80db517dde1e68895bbdd66Adam Powell * <p>This behavior has been preserved for apps that set <code>android:targetSdkVersion="17"</code> 712c8cc972c3b03b76a80db517dde1e68895bbdd66Adam Powell * or older in their manifest's <code>uses-sdk</code> tag for compatibility. Apps targeting SDK 722c8cc972c3b03b76a80db517dde1e68895bbdd66Adam Powell * version 18 or newer will receive the correct behavior</p> 732c8cc972c3b03b76a80db517dde1e68895bbdd66Adam Powell * 744c359b76f9a030f92a302ba74a528faa170bad4eScott Main * <p>See the <a href="{@docRoot}guide/topics/ui/layout/relative.html">Relative 754c359b76f9a030f92a302ba74a528faa170bad4eScott Main * Layout</a> guide.</p> 7641ec65355bd6ded652769725b276d47c54a0d913Scott Main * 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p> 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Also see {@link android.widget.RelativeLayout.LayoutParams RelativeLayout.LayoutParams} for 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout attributes 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * </p> 81a1f3e4aef19882b4b81075d9205bd363efe1e66dRomain Guy * 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_gravity 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_ignoreGravity 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project@RemoteView 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic class RelativeLayout extends ViewGroup { 87725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private static final String LOG_TAG = "RelativeLayout"; 88725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 89725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private static final boolean DEBUG_GRAPH = false; 90725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRUE = -1; 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's right edge with another child's left edge. 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int LEFT_OF = 0; 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's left edge with another child's right edge. 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int RIGHT_OF = 1; 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's bottom edge with another child's top edge. 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ABOVE = 2; 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's top edge with another child's bottom edge. 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int BELOW = 3; 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's baseline with another child's baseline. 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_BASELINE = 4; 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's left edge with another child's left edge. 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_LEFT = 5; 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's top edge with another child's top edge. 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_TOP = 6; 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's right edge with another child's right edge. 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_RIGHT = 7; 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's bottom edge with another child's bottom edge. 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_BOTTOM = 8; 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns the child's left edge with its RelativeLayout 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * parent's left edge. 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_PARENT_LEFT = 9; 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns the child's top edge with its RelativeLayout 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * parent's top edge. 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_PARENT_TOP = 10; 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns the child's right edge with its RelativeLayout 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * parent's right edge. 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_PARENT_RIGHT = 11; 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns the child's bottom edge with its RelativeLayout 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * parent's bottom edge. 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_PARENT_BOTTOM = 12; 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that centers the child with respect to the bounds of its 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * RelativeLayout parent. 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int CENTER_IN_PARENT = 13; 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that centers the child horizontally with respect to the 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bounds of its RelativeLayout parent. 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int CENTER_HORIZONTAL = 14; 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that centers the child vertically with respect to the 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bounds of its RelativeLayout parent. 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int CENTER_VERTICAL = 15; 167f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio /** 168f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * Rule that aligns a child's end edge with another child's start edge. 169f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio */ 170f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio public static final int START_OF = 16; 171f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio /** 172f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * Rule that aligns a child's start edge with another child's end edge. 173f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio */ 174f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio public static final int END_OF = 17; 175f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio /** 176f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * Rule that aligns a child's start edge with another child's start edge. 177f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio */ 178f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio public static final int ALIGN_START = 18; 179f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio /** 180f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * Rule that aligns a child's end edge with another child's end edge. 181f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio */ 182f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio public static final int ALIGN_END = 19; 183f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio /** 184f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * Rule that aligns the child's start edge with its RelativeLayout 185f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * parent's start edge. 186f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio */ 187f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio public static final int ALIGN_PARENT_START = 20; 188f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio /** 189f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * Rule that aligns the child's end edge with its RelativeLayout 190f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * parent's end edge. 191f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio */ 192f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio public static final int ALIGN_PARENT_END = 21; 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 194f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio private static final int VERB_COUNT = 22; 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 196bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy 197bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy private static final int[] RULES_VERTICAL = { 198bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy ABOVE, BELOW, ALIGN_BASELINE, ALIGN_TOP, ALIGN_BOTTOM 199bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy }; 200bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy 201bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy private static final int[] RULES_HORIZONTAL = { 202f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio LEFT_OF, RIGHT_OF, ALIGN_LEFT, ALIGN_RIGHT, START_OF, END_OF, ALIGN_START, ALIGN_END 203bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy }; 204bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy 2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View mBaselineView = null; 2069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mHasBaselineAlignedChild; 2079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 208f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio private int mGravity = Gravity.START | Gravity.TOP; 2099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final Rect mContentBounds = new Rect(); 2109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final Rect mSelfBounds = new Rect(); 2119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mIgnoreGravity; 2129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 213725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private SortedSet<View> mTopToBottomLeftToRightSet = null; 214725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 215725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private boolean mDirtyHierarchy; 216725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private View[] mSortedHorizontalChildren = new View[0]; 217725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private View[] mSortedVerticalChildren = new View[0]; 218725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private final DependencyGraph mGraph = new DependencyGraph(); 21975986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov 2207da4b73a236b7c72d1337696949df7a00776dd06Adam Powell // Compatibility hack. Old versions of the platform had problems 2217da4b73a236b7c72d1337696949df7a00776dd06Adam Powell // with MeasureSpec value overflow and RelativeLayout was one source of them. 2227da4b73a236b7c72d1337696949df7a00776dd06Adam Powell // Some apps came to rely on them. :( 2237da4b73a236b7c72d1337696949df7a00776dd06Adam Powell private boolean mAllowBrokenMeasureSpecs = false; 2247da4b73a236b7c72d1337696949df7a00776dd06Adam Powell 225306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio private int mDisplayWidth; 226306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio 2279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public RelativeLayout(Context context) { 2289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context); 2297da4b73a236b7c72d1337696949df7a00776dd06Adam Powell mAllowBrokenMeasureSpecs = context.getApplicationInfo().targetSdkVersion <= 2307da4b73a236b7c72d1337696949df7a00776dd06Adam Powell Build.VERSION_CODES.JELLY_BEAN_MR1; 231306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio getDisplayWidth(); 2329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public RelativeLayout(Context context, AttributeSet attrs) { 2359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, attrs); 2369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initFromAttributes(context, attrs); 2377da4b73a236b7c72d1337696949df7a00776dd06Adam Powell mAllowBrokenMeasureSpecs = context.getApplicationInfo().targetSdkVersion <= 2387da4b73a236b7c72d1337696949df7a00776dd06Adam Powell Build.VERSION_CODES.JELLY_BEAN_MR1; 239306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio getDisplayWidth(); 2409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public RelativeLayout(Context context, AttributeSet attrs, int defStyle) { 2439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, attrs, defStyle); 2449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initFromAttributes(context, attrs); 2457da4b73a236b7c72d1337696949df7a00776dd06Adam Powell mAllowBrokenMeasureSpecs = context.getApplicationInfo().targetSdkVersion <= 2467da4b73a236b7c72d1337696949df7a00776dd06Adam Powell Build.VERSION_CODES.JELLY_BEAN_MR1; 247306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio getDisplayWidth(); 2489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void initFromAttributes(Context context, AttributeSet attrs) { 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.RelativeLayout); 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIgnoreGravity = a.getResourceId(R.styleable.RelativeLayout_ignoreGravity, View.NO_ID); 2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGravity = a.getInt(R.styleable.RelativeLayout_gravity, mGravity); 2549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 257306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio private void getDisplayWidth() { 258306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio WindowManager wm = (WindowManager)mContext.getSystemService(Context.WINDOW_SERVICE); 259306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio mDisplayWidth = wm.getDefaultDisplay().getWidth(); 260306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio } 261306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio 262e0a799a2ac1ca78e30fbac9e4e12a063425c08d3Patrick Dubroy @Override 263e0a799a2ac1ca78e30fbac9e4e12a063425c08d3Patrick Dubroy public boolean shouldDelayChildPressedState() { 264e0a799a2ac1ca78e30fbac9e4e12a063425c08d3Patrick Dubroy return false; 265e0a799a2ac1ca78e30fbac9e4e12a063425c08d3Patrick Dubroy } 266e0a799a2ac1ca78e30fbac9e4e12a063425c08d3Patrick Dubroy 2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines which View is ignored when the gravity is applied. This setting has no 269f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * effect if the gravity is <code>Gravity.START | Gravity.TOP</code>. 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param viewId The id of the View to be ignored by gravity, or 0 if no View 2729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * should be ignored. 2739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setGravity(int) 2759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_ignoreGravity 2779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @android.view.RemotableViewMethod 2799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setIgnoreGravity(int viewId) { 2809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIgnoreGravity = viewId; 2819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2841018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne * Describes how the child views are positioned. 2851018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne * 2861018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne * @return the gravity. 2871018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne * 2881018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne * @see #setGravity(int) 2891018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne * @see android.view.Gravity 2901018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne * 2911018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne * @attr ref android.R.styleable#RelativeLayout_gravity 2921018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne */ 2931018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne public int getGravity() { 2941018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne return mGravity; 2951018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne } 2961018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne 2971018fb42cb4958511a141787705aa429c5ec9bd3Philip Milne /** 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Describes how the child views are positioned. Defaults to 299f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * <code>Gravity.START | Gravity.TOP</code>. 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3011fec24e0fff95afaa90bbf811e9f8db659eb9324Adam Powell * <p>Note that since RelativeLayout considers the positioning of each child 3021fec24e0fff95afaa90bbf811e9f8db659eb9324Adam Powell * relative to one another to be significant, setting gravity will affect 3031fec24e0fff95afaa90bbf811e9f8db659eb9324Adam Powell * the positioning of all children as a single unit within the parent. 3041fec24e0fff95afaa90bbf811e9f8db659eb9324Adam Powell * This happens after children have been relatively positioned.</p> 3051fec24e0fff95afaa90bbf811e9f8db659eb9324Adam Powell * 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param gravity See {@link android.view.Gravity} 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setHorizontalGravity(int) 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setVerticalGravity(int) 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_gravity 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @android.view.RemotableViewMethod 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setGravity(int gravity) { 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mGravity != gravity) { 3166a03640539405afbdefe72894759281b98aa6e6fFabrice Di Meglio if ((gravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) == 0) { 3179e3b002d3f9141d54948a65e0330fdcd09e75a30Fabrice Di Meglio gravity |= Gravity.START; 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((gravity & Gravity.VERTICAL_GRAVITY_MASK) == 0) { 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project gravity |= Gravity.TOP; 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGravity = gravity; 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @android.view.RemotableViewMethod 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setHorizontalGravity(int horizontalGravity) { 3316a03640539405afbdefe72894759281b98aa6e6fFabrice Di Meglio final int gravity = horizontalGravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK; 3326a03640539405afbdefe72894759281b98aa6e6fFabrice Di Meglio if ((mGravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) != gravity) { 3336a03640539405afbdefe72894759281b98aa6e6fFabrice Di Meglio mGravity = (mGravity & ~Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) | gravity; 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @android.view.RemotableViewMethod 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setVerticalGravity(int verticalGravity) { 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int gravity = verticalGravity & Gravity.VERTICAL_GRAVITY_MASK; 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != gravity) { 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGravity = (mGravity & ~Gravity.VERTICAL_GRAVITY_MASK) | gravity; 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getBaseline() { 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mBaselineView != null ? mBaselineView.getBaseline() : super.getBaseline(); 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 353725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy public void requestLayout() { 354725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy super.requestLayout(); 355725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy mDirtyHierarchy = true; 356725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 357725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 358725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private void sortChildren() { 359725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy int count = getChildCount(); 360725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (mSortedVerticalChildren.length != count) mSortedVerticalChildren = new View[count]; 361725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (mSortedHorizontalChildren.length != count) mSortedHorizontalChildren = new View[count]; 362725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 363725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final DependencyGraph graph = mGraph; 364725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy graph.clear(); 365725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 366725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 367725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final View child = getChildAt(i); 368725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy graph.add(child); 369725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 370725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 371725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (DEBUG_GRAPH) { 372725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy d(LOG_TAG, "=== Sorted vertical children"); 373bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy graph.log(getResources(), RULES_VERTICAL); 374725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy d(LOG_TAG, "=== Sorted horizontal children"); 375bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy graph.log(getResources(), RULES_HORIZONTAL); 376725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 377725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 378bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy graph.getSortedViews(mSortedVerticalChildren, RULES_VERTICAL); 379bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy graph.getSortedViews(mSortedHorizontalChildren, RULES_HORIZONTAL); 3809fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy 3819fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy if (DEBUG_GRAPH) { 3829fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy d(LOG_TAG, "=== Ordered list of vertical children"); 3839fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy for (View view : mSortedVerticalChildren) { 3849fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy DependencyGraph.printViewId(getResources(), view); 3859fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy } 3869fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy d(LOG_TAG, "=== Ordered list of horizontal children"); 3879fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy for (View view : mSortedHorizontalChildren) { 3889fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy DependencyGraph.printViewId(getResources(), view); 3899fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy } 3909fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy } 391725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 392725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 39342460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy // TODO: we need to find another way to implement RelativeLayout 39442460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy // This implementation cannot handle every case 395725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy @Override 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 397725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (mDirtyHierarchy) { 398725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy mDirtyHierarchy = false; 399725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy sortChildren(); 400725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 401725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int myWidth = -1; 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int myHeight = -1; 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int width = 0; 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = 0; 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 408132a742b94b9716451ddef30cec20548b346f1b9Adam Powell final int widthMode = MeasureSpec.getMode(widthMeasureSpec); 409132a742b94b9716451ddef30cec20548b346f1b9Adam Powell final int heightMode = MeasureSpec.getMode(heightMeasureSpec); 410132a742b94b9716451ddef30cec20548b346f1b9Adam Powell final int widthSize = MeasureSpec.getSize(widthMeasureSpec); 411132a742b94b9716451ddef30cec20548b346f1b9Adam Powell final int heightSize = MeasureSpec.getSize(heightMeasureSpec); 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Record our dimensions if they are known; 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (widthMode != MeasureSpec.UNSPECIFIED) { 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project myWidth = widthSize; 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (heightMode != MeasureSpec.UNSPECIFIED) { 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project myHeight = heightSize; 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (widthMode == MeasureSpec.EXACTLY) { 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project width = myWidth; 4249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (heightMode == MeasureSpec.EXACTLY) { 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = myHeight; 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mHasBaselineAlignedChild = false; 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View ignore = null; 4336a03640539405afbdefe72894759281b98aa6e6fFabrice Di Meglio int gravity = mGravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK; 434f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio final boolean horizontalGravity = gravity != Gravity.START && gravity != 0; 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean verticalGravity = gravity != Gravity.TOP && gravity != 0; 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int left = Integer.MAX_VALUE; 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int top = Integer.MAX_VALUE; 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int right = Integer.MIN_VALUE; 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int bottom = Integer.MIN_VALUE; 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 443f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy boolean offsetHorizontalAxis = false; 444f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy boolean offsetVerticalAxis = false; 445f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((horizontalGravity || verticalGravity) && mIgnoreGravity != View.NO_ID) { 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ignore = findViewById(mIgnoreGravity); 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 450f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy final boolean isWrapContentWidth = widthMode != MeasureSpec.EXACTLY; 451f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy final boolean isWrapContentHeight = heightMode != MeasureSpec.EXACTLY; 452f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 453306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio // We need to know our size for doing the correct computation of children positioning in RTL 454306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio // mode but there is no practical way to get it instead of running the code below. 455306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio // So, instead of running the code twice, we just set the width to the "display width" 456306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio // before the computation and then, as a last pass, we will update their real position with 457306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio // an offset equals to "displayWidth - width". 458306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio final int layoutDirection = getLayoutDirection(); 459306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio if (isLayoutRtl() && myWidth == -1) { 460306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio myWidth = mDisplayWidth; 461306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio } 462306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio 463e24ef6032f52cb754bfeb9ab32aae0a5cfa61f8aRomain Guy View[] views = mSortedHorizontalChildren; 464725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy int count = views.length; 46513705eda8cc065ee98feb94af649615579cd4a58Fabrice Di Meglio 466725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 467725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy View child = views[i]; 468725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (child.getVisibility() != GONE) { 469725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy LayoutParams params = (LayoutParams) child.getLayoutParams(); 470547261320cb4bbb3e967246bc86578263d94e84dFabrice Di Meglio int[] rules = params.getRules(layoutDirection); 471956070383945db5f842ec05e507fd0233705738cRomain Guy 472547261320cb4bbb3e967246bc86578263d94e84dFabrice Di Meglio applyHorizontalSizeRules(params, myWidth, rules); 473f782e60efc09f210643432f31b4c18026d7716d6Romain Guy measureChildHorizontal(child, params, myWidth, myHeight); 474547261320cb4bbb3e967246bc86578263d94e84dFabrice Di Meglio 475f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (positionChildHorizontal(child, params, myWidth, isWrapContentWidth)) { 476f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy offsetHorizontalAxis = true; 477f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 478725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 479725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 480725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 481e24ef6032f52cb754bfeb9ab32aae0a5cfa61f8aRomain Guy views = mSortedVerticalChildren; 482725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy count = views.length; 483f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 484725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 485725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy View child = views[i]; 4869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() != GONE) { 4879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LayoutParams params = (LayoutParams) child.getLayoutParams(); 488956070383945db5f842ec05e507fd0233705738cRomain Guy 489956070383945db5f842ec05e507fd0233705738cRomain Guy applyVerticalSizeRules(params, myHeight); 4909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project measureChild(child, params, myWidth, myHeight); 491f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (positionChildVertical(child, params, myHeight, isWrapContentHeight)) { 492f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy offsetVerticalAxis = true; 493f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 4949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 495f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (isWrapContentWidth) { 496306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio if (isLayoutRtl()) { 497306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio width = Math.max(width, myWidth - params.mLeft); 498306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio } else { 499306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio width = Math.max(width, params.mRight); 500306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio } 5019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 502f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 503f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (isWrapContentHeight) { 5049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = Math.max(height, params.mBottom); 5059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != ignore || verticalGravity) { 5089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project left = Math.min(left, params.mLeft - params.leftMargin); 5099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project top = Math.min(top, params.mTop - params.topMargin); 5109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != ignore || horizontalGravity) { 5139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project right = Math.max(right, params.mRight + params.rightMargin); 5149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project bottom = Math.max(bottom, params.mBottom + params.bottomMargin); 5159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mHasBaselineAlignedChild) { 520725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() != GONE) { 5239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LayoutParams params = (LayoutParams) child.getLayoutParams(); 5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project alignBaseline(child, params); 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != ignore || verticalGravity) { 527725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy left = Math.min(left, params.mLeft - params.leftMargin); 528725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy top = Math.min(top, params.mTop - params.topMargin); 5299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != ignore || horizontalGravity) { 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project right = Math.max(right, params.mRight + params.rightMargin); 5339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project bottom = Math.max(bottom, params.mBottom + params.bottomMargin); 5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 539f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (isWrapContentWidth) { 540a1f3e4aef19882b4b81075d9205bd363efe1e66dRomain Guy // Width already has left padding in it since it was calculated by looking at 5419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the right of each child view 5429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project width += mPaddingRight; 5439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mLayoutParams.width >= 0) { 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project width = Math.max(width, mLayoutParams.width); 5469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project width = Math.max(width, getSuggestedMinimumWidth()); 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project width = resolveSize(width, widthMeasureSpec); 550f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 551f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (offsetHorizontalAxis) { 552d10a576791675628a014c0488c3d054371d4d63aRomain Guy for (int i = 0; i < count; i++) { 553f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy View child = getChildAt(i); 554f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (child.getVisibility() != GONE) { 555f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy LayoutParams params = (LayoutParams) child.getLayoutParams(); 556f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio final int[] rules = params.getRules(layoutDirection); 557f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (rules[CENTER_IN_PARENT] != 0 || rules[CENTER_HORIZONTAL] != 0) { 558f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy centerHorizontal(child, params, width); 55942460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy } else if (rules[ALIGN_PARENT_RIGHT] != 0) { 56042460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy final int childWidth = child.getMeasuredWidth(); 56142460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy params.mLeft = width - mPaddingRight - childWidth; 56242460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy params.mRight = params.mLeft + childWidth; 563f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 564f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 565f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 566f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 5679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 568f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 569f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (isWrapContentHeight) { 570a1f3e4aef19882b4b81075d9205bd363efe1e66dRomain Guy // Height already has top padding in it since it was calculated by looking at 5719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the bottom of each child view 5729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height += mPaddingBottom; 5739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mLayoutParams.height >= 0) { 5759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = Math.max(height, mLayoutParams.height); 5769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = Math.max(height, getSuggestedMinimumHeight()); 5799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = resolveSize(height, heightMeasureSpec); 580f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 581f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (offsetVerticalAxis) { 582f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy for (int i = 0; i < count; i++) { 583f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy View child = getChildAt(i); 584f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (child.getVisibility() != GONE) { 585f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy LayoutParams params = (LayoutParams) child.getLayoutParams(); 586f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio final int[] rules = params.getRules(layoutDirection); 587f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (rules[CENTER_IN_PARENT] != 0 || rules[CENTER_VERTICAL] != 0) { 588f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy centerVertical(child, params, height); 58942460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy } else if (rules[ALIGN_PARENT_BOTTOM] != 0) { 59042460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy final int childHeight = child.getMeasuredHeight(); 59142460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy params.mTop = height - mPaddingBottom - childHeight; 59242460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy params.mBottom = params.mTop + childHeight; 593f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 594f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 595f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 596f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 5979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (horizontalGravity || verticalGravity) { 6009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selfBounds = mSelfBounds; 6019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selfBounds.set(mPaddingLeft, mPaddingTop, width - mPaddingRight, 6029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height - mPaddingBottom); 6039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect contentBounds = mContentBounds; 6056a03640539405afbdefe72894759281b98aa6e6fFabrice Di Meglio Gravity.apply(mGravity, right - left, bottom - top, selfBounds, contentBounds, 606c0053223bedf33581b0830fb87be32c1f26e5372Fabrice Di Meglio layoutDirection); 6079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int horizontalOffset = contentBounds.left - left; 6099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int verticalOffset = contentBounds.top - top; 6109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (horizontalOffset != 0 || verticalOffset != 0) { 611725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 6129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 6139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() != GONE && child != ignore) { 6149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LayoutParams params = (LayoutParams) child.getLayoutParams(); 615d10a576791675628a014c0488c3d054371d4d63aRomain Guy if (horizontalGravity) { 616d10a576791675628a014c0488c3d054371d4d63aRomain Guy params.mLeft += horizontalOffset; 617d10a576791675628a014c0488c3d054371d4d63aRomain Guy params.mRight += horizontalOffset; 618d10a576791675628a014c0488c3d054371d4d63aRomain Guy } 619d10a576791675628a014c0488c3d054371d4d63aRomain Guy if (verticalGravity) { 620d10a576791675628a014c0488c3d054371d4d63aRomain Guy params.mTop += verticalOffset; 621d10a576791675628a014c0488c3d054371d4d63aRomain Guy params.mBottom += verticalOffset; 622d10a576791675628a014c0488c3d054371d4d63aRomain Guy } 6239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 628306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio if (isLayoutRtl()) { 629306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio final int offsetWidth = myWidth - width; 630306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio for (int i = 0; i < count; i++) { 631306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio View child = getChildAt(i); 632306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio if (child.getVisibility() != GONE) { 633306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio LayoutParams params = (LayoutParams) child.getLayoutParams(); 634306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio params.mLeft -= offsetWidth; 635306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio params.mRight -= offsetWidth; 636306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio } 637306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio } 638306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio 639306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio } 640306fe5cc0e85e8a5ef07ff64493982f99caeba3aFabrice Di Meglio 6419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setMeasuredDimension(width, height); 6429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void alignBaseline(View child, LayoutParams params) { 645e56ffdc7b31b0937628609cc3bbaa15879023569Fabrice Di Meglio final int layoutDirection = getLayoutDirection(); 646f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio int[] rules = params.getRules(layoutDirection); 6479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int anchorBaseline = getRelatedViewBaseline(rules, ALIGN_BASELINE); 6489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorBaseline != -1) { 6509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LayoutParams anchorParams = getRelatedViewParams(rules, ALIGN_BASELINE); 6519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 6529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int offset = anchorParams.mTop + anchorBaseline; 6539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int baseline = child.getBaseline(); 6549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (baseline != -1) { 6559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offset -= baseline; 6569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = params.mBottom - params.mTop; 6589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mTop = offset; 6599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mBottom = params.mTop + height; 6609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mBaselineView == null) { 6649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mBaselineView = child; 6659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 6669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LayoutParams lp = (LayoutParams) mBaselineView.getLayoutParams(); 6679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (params.mTop < lp.mTop || (params.mTop == lp.mTop && params.mLeft < lp.mLeft)) { 6689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mBaselineView = child; 6699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Measure a child. The child should have left, top, right and bottom information 6759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * stored in its LayoutParams. If any of these values is -1 it means that the view 6769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * can extend up to the corresponding edge. 6779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param child Child to measure 6799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param params LayoutParams associated with child 6809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param myWidth Width of the the RelativeLayout 6819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param myHeight Height of the RelativeLayout 6829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 683725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private void measureChild(View child, LayoutParams params, int myWidth, int myHeight) { 6849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childWidthMeasureSpec = getChildMeasureSpec(params.mLeft, 6859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mRight, params.width, 6869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.leftMargin, params.rightMargin, 6879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPaddingLeft, mPaddingRight, 6889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project myWidth); 6899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childHeightMeasureSpec = getChildMeasureSpec(params.mTop, 6909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mBottom, params.height, 6919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.topMargin, params.bottomMargin, 6929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPaddingTop, mPaddingBottom, 6939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project myHeight); 6949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.measure(childWidthMeasureSpec, childHeightMeasureSpec); 6959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 697f782e60efc09f210643432f31b4c18026d7716d6Romain Guy private void measureChildHorizontal(View child, LayoutParams params, int myWidth, int myHeight) { 698956070383945db5f842ec05e507fd0233705738cRomain Guy int childWidthMeasureSpec = getChildMeasureSpec(params.mLeft, 699956070383945db5f842ec05e507fd0233705738cRomain Guy params.mRight, params.width, 700956070383945db5f842ec05e507fd0233705738cRomain Guy params.leftMargin, params.rightMargin, 701956070383945db5f842ec05e507fd0233705738cRomain Guy mPaddingLeft, mPaddingRight, 702956070383945db5f842ec05e507fd0233705738cRomain Guy myWidth); 703f782e60efc09f210643432f31b4c18026d7716d6Romain Guy int childHeightMeasureSpec; 7047da4b73a236b7c72d1337696949df7a00776dd06Adam Powell if (myHeight < 0 && !mAllowBrokenMeasureSpecs) { 705f16c7a97548cedccea291ffebc4388a7f15c9aa1Romain Guy if (params.height >= 0) { 706f16c7a97548cedccea291ffebc4388a7f15c9aa1Romain Guy childHeightMeasureSpec = MeasureSpec.makeMeasureSpec( 707f16c7a97548cedccea291ffebc4388a7f15c9aa1Romain Guy params.height, MeasureSpec.EXACTLY); 708f16c7a97548cedccea291ffebc4388a7f15c9aa1Romain Guy } else { 709f16c7a97548cedccea291ffebc4388a7f15c9aa1Romain Guy // Negative values in a mySize/myWidth/myWidth value in RelativeLayout measurement 710f16c7a97548cedccea291ffebc4388a7f15c9aa1Romain Guy // is code for, "we got an unspecified mode in the RelativeLayout's measurespec." 711f16c7a97548cedccea291ffebc4388a7f15c9aa1Romain Guy // Carry it forward. 712f16c7a97548cedccea291ffebc4388a7f15c9aa1Romain Guy childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED); 713f16c7a97548cedccea291ffebc4388a7f15c9aa1Romain Guy } 714132a742b94b9716451ddef30cec20548b346f1b9Adam Powell } else if (params.width == LayoutParams.MATCH_PARENT) { 715baac46339da03aed166e8a4240ad063caad019adRomain Guy childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(myHeight, MeasureSpec.EXACTLY); 716f782e60efc09f210643432f31b4c18026d7716d6Romain Guy } else { 717baac46339da03aed166e8a4240ad063caad019adRomain Guy childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(myHeight, MeasureSpec.AT_MOST); 718f782e60efc09f210643432f31b4c18026d7716d6Romain Guy } 719725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy child.measure(childWidthMeasureSpec, childHeightMeasureSpec); 720725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 721725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a measure spec that accounts for all of the constraints on this view. 724f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * This includes size constraints imposed by the RelativeLayout as well as 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the View's desired dimension. 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childStart The left or top field of the child's layout params 7289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childEnd The right or bottom field of the child's layout params 7299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childSize The child's desired size (the width or height field of 7309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the child's layout params) 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param startMargin The left or top margin 7329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param endMargin The right or bottom margin 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param startPadding mPaddingLeft or mPaddingTop 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param endPadding mPaddingRight or mPaddingBottom 7359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mySize The width or height of this view (the RelativeLayout) 7369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return MeasureSpec for the child 7379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int getChildMeasureSpec(int childStart, int childEnd, 7399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childSize, int startMargin, int endMargin, int startPadding, 7409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int endPadding, int mySize) { 7417da4b73a236b7c72d1337696949df7a00776dd06Adam Powell if (mySize < 0 && !mAllowBrokenMeasureSpecs) { 742f16c7a97548cedccea291ffebc4388a7f15c9aa1Romain Guy if (childSize >= 0) { 743f16c7a97548cedccea291ffebc4388a7f15c9aa1Romain Guy return MeasureSpec.makeMeasureSpec(childSize, MeasureSpec.EXACTLY); 744f16c7a97548cedccea291ffebc4388a7f15c9aa1Romain Guy } 745132a742b94b9716451ddef30cec20548b346f1b9Adam Powell // Negative values in a mySize/myWidth/myWidth value in RelativeLayout measurement 746132a742b94b9716451ddef30cec20548b346f1b9Adam Powell // is code for, "we got an unspecified mode in the RelativeLayout's measurespec." 747132a742b94b9716451ddef30cec20548b346f1b9Adam Powell // Carry it forward. 748132a742b94b9716451ddef30cec20548b346f1b9Adam Powell return MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED); 749132a742b94b9716451ddef30cec20548b346f1b9Adam Powell } 750132a742b94b9716451ddef30cec20548b346f1b9Adam Powell 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childSpecMode = 0; 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childSpecSize = 0; 7539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Figure out start and end bounds. 7559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int tempStart = childStart; 7569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int tempEnd = childEnd; 7579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the view did not express a layout constraint for an edge, use 7599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // view's margins and our padding 7609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (tempStart < 0) { 7619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project tempStart = startPadding + startMargin; 7629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (tempEnd < 0) { 7649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project tempEnd = mySize - endPadding - endMargin; 7659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Figure out maximum size available to this view 7689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int maxAvailable = tempEnd - tempStart; 7699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childStart >= 0 && childEnd >= 0) { 7719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Constraints fixed both edges, so child must be an exact size 7729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecMode = MeasureSpec.EXACTLY; 7739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecSize = maxAvailable; 7749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 7759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childSize >= 0) { 7769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Child wanted an exact size. Give as much as possible 7779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecMode = MeasureSpec.EXACTLY; 7789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (maxAvailable >= 0) { 7809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We have a maxmum size in this dimension. 7819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecSize = Math.min(maxAvailable, childSize); 7829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 7839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We can grow in this dimension. 7849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecSize = childSize; 7859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 786980a938c1c9a6a5791a8240e5a1e6638ab28dc77Romain Guy } else if (childSize == LayoutParams.MATCH_PARENT) { 787f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio // Child wanted to be as big as possible. Give all available 7889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // space 7899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecMode = MeasureSpec.EXACTLY; 7909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecSize = maxAvailable; 7919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childSize == LayoutParams.WRAP_CONTENT) { 7929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Child wants to wrap content. Use AT_MOST 7939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to communicate available space if we know 7949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // our max size 7959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (maxAvailable >= 0) { 796f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio // We have a maximum size in this dimension. 7979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecMode = MeasureSpec.AT_MOST; 7989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecSize = maxAvailable; 7999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 8009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We can grow in this dimension. Child can be as big as it 8019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // wants 8029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecMode = MeasureSpec.UNSPECIFIED; 8039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecSize = 0; 8049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return MeasureSpec.makeMeasureSpec(childSpecSize, childSpecMode); 8099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 811f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy private boolean positionChildHorizontal(View child, LayoutParams params, int myWidth, 812f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy boolean wrapContent) { 813f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 814e56ffdc7b31b0937628609cc3bbaa15879023569Fabrice Di Meglio final int layoutDirection = getLayoutDirection(); 815f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio int[] rules = params.getRules(layoutDirection); 8169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (params.mLeft < 0 && params.mRight >= 0) { 8189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Right is fixed, but left varies 8199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mLeft = params.mRight - child.getMeasuredWidth(); 8209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (params.mLeft >= 0 && params.mRight < 0) { 8219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Left is fixed, but right varies 8229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mRight = params.mLeft + child.getMeasuredWidth(); 8239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (params.mLeft < 0 && params.mRight < 0) { 8249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Both left and right vary 825f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (rules[CENTER_IN_PARENT] != 0 || rules[CENTER_HORIZONTAL] != 0) { 826f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (!wrapContent) { 827f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy centerHorizontal(child, params, myWidth); 828f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } else { 829f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy params.mLeft = mPaddingLeft + params.leftMargin; 830f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy params.mRight = params.mLeft + child.getMeasuredWidth(); 831f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 832f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy return true; 8339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 834f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio // This is the default case. For RTL we start from the right and for LTR we start 835f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio // from the left. This will give LEFT/TOP for LTR and RIGHT/TOP for RTL. 836f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio if (isLayoutRtl()) { 837f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio params.mRight = myWidth - mPaddingRight- params.rightMargin; 838f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio params.mLeft = params.mRight - child.getMeasuredWidth(); 839f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio } else { 840f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio params.mLeft = mPaddingLeft + params.leftMargin; 841f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio params.mRight = params.mLeft + child.getMeasuredWidth(); 842f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio } 8439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 845f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio return rules[ALIGN_PARENT_END] != 0; 846725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 847725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 848f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy private boolean positionChildVertical(View child, LayoutParams params, int myHeight, 849f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy boolean wrapContent) { 850f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 851725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy int[] rules = params.getRules(); 8529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (params.mTop < 0 && params.mBottom >= 0) { 8549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Bottom is fixed, but top varies 8559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mTop = params.mBottom - child.getMeasuredHeight(); 8569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (params.mTop >= 0 && params.mBottom < 0) { 8579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Top is fixed, but bottom varies 8589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mBottom = params.mTop + child.getMeasuredHeight(); 8599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (params.mTop < 0 && params.mBottom < 0) { 8609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Both top and bottom vary 861f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (rules[CENTER_IN_PARENT] != 0 || rules[CENTER_VERTICAL] != 0) { 862f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (!wrapContent) { 863f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy centerVertical(child, params, myHeight); 864f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } else { 865f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy params.mTop = mPaddingTop + params.topMargin; 866f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy params.mBottom = params.mTop + child.getMeasuredHeight(); 867f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 868f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy return true; 8699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 8709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mTop = mPaddingTop + params.topMargin; 8719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mBottom = params.mTop + child.getMeasuredHeight(); 8729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 87442460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy return rules[ALIGN_PARENT_BOTTOM] != 0; 8759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 877547261320cb4bbb3e967246bc86578263d94e84dFabrice Di Meglio private void applyHorizontalSizeRules(LayoutParams childParams, int myWidth, int[] rules) { 8789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RelativeLayout.LayoutParams anchorParams; 8799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // -1 indicated a "soft requirement" in that direction. For example: 8819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // left=10, right=-1 means the view must start at 10, but can go as far as it wants to the right 8829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // left =-1, right=10 means the view must end at 10, but can go as far as it wants to the left 8839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // left=10, right=20 means the left and right ends are both fixed 8849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mLeft = -1; 8859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mRight = -1; 8869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, LEFT_OF); 8889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 8899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mRight = anchorParams.mLeft - (anchorParams.leftMargin + 8909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.rightMargin); 8919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[LEFT_OF] != 0) { 8929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (myWidth >= 0) { 8939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mRight = myWidth - mPaddingRight - childParams.rightMargin; 8949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 8959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME uh oh... 8969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, RIGHT_OF); 9009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 9019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mLeft = anchorParams.mRight + (anchorParams.rightMargin + 9029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.leftMargin); 9039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[RIGHT_OF] != 0) { 9049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mLeft = mPaddingLeft + childParams.leftMargin; 9059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, ALIGN_LEFT); 9089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 9099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mLeft = anchorParams.mLeft + childParams.leftMargin; 9109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[ALIGN_LEFT] != 0) { 9119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mLeft = mPaddingLeft + childParams.leftMargin; 9129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, ALIGN_RIGHT); 9159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 9169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mRight = anchorParams.mRight - childParams.rightMargin; 9179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[ALIGN_RIGHT] != 0) { 9189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (myWidth >= 0) { 9199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mRight = myWidth - mPaddingRight - childParams.rightMargin; 9209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 9219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME uh oh... 9229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (0 != rules[ALIGN_PARENT_LEFT]) { 9269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mLeft = mPaddingLeft + childParams.leftMargin; 9279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (0 != rules[ALIGN_PARENT_RIGHT]) { 9309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (myWidth >= 0) { 9319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mRight = myWidth - mPaddingRight - childParams.rightMargin; 9329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 9339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME uh oh... 9349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 936725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 937725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 938725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private void applyVerticalSizeRules(LayoutParams childParams, int myHeight) { 939725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy int[] rules = childParams.getRules(); 940725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy RelativeLayout.LayoutParams anchorParams; 9419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mTop = -1; 9439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mBottom = -1; 9449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, ABOVE); 9469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 9479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mBottom = anchorParams.mTop - (anchorParams.topMargin + 9489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.bottomMargin); 9499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[ABOVE] != 0) { 9509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (myHeight >= 0) { 9519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mBottom = myHeight - mPaddingBottom - childParams.bottomMargin; 9529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 9539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME uh oh... 9549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, BELOW); 9589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 9599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mTop = anchorParams.mBottom + (anchorParams.bottomMargin + 9609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.topMargin); 9619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[BELOW] != 0) { 9629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mTop = mPaddingTop + childParams.topMargin; 9639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, ALIGN_TOP); 9669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 9679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mTop = anchorParams.mTop + childParams.topMargin; 9689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[ALIGN_TOP] != 0) { 9699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mTop = mPaddingTop + childParams.topMargin; 9709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, ALIGN_BOTTOM); 9739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 9749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mBottom = anchorParams.mBottom - childParams.bottomMargin; 9759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[ALIGN_BOTTOM] != 0) { 9769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (myHeight >= 0) { 9779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mBottom = myHeight - mPaddingBottom - childParams.bottomMargin; 9789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 9799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME uh oh... 9809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (0 != rules[ALIGN_PARENT_TOP]) { 9849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mTop = mPaddingTop + childParams.topMargin; 9859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (0 != rules[ALIGN_PARENT_BOTTOM]) { 9889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (myHeight >= 0) { 9899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mBottom = myHeight - mPaddingBottom - childParams.bottomMargin; 9909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 9919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME uh oh... 9929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (rules[ALIGN_BASELINE] != 0) { 9969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mHasBaselineAlignedChild = true; 9979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View getRelatedView(int[] rules, int relation) { 10019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int id = rules[relation]; 10029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (id != 0) { 10031ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy DependencyGraph.Node node = mGraph.mKeyNodes.get(id); 1004a0fd1d742d8edaf6c7e79bdd16a9b0c44fda4503Romain Guy if (node == null) return null; 1005a0fd1d742d8edaf6c7e79bdd16a9b0c44fda4503Romain Guy View v = node.view; 10069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Find the first non-GONE view up the chain 10089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while (v.getVisibility() == View.GONE) { 100913705eda8cc065ee98feb94af649615579cd4a58Fabrice Di Meglio rules = ((LayoutParams) v.getLayoutParams()).getRules(v.getLayoutDirection()); 10101ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy node = mGraph.mKeyNodes.get((rules[relation])); 1011a0fd1d742d8edaf6c7e79bdd16a9b0c44fda4503Romain Guy if (node == null) return null; 1012a0fd1d742d8edaf6c7e79bdd16a9b0c44fda4503Romain Guy v = node.view; 10139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return v; 10169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 10199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private LayoutParams getRelatedViewParams(int[] rules, int relation) { 10229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getRelatedView(rules, relation); 10239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) { 10249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewGroup.LayoutParams params = v.getLayoutParams(); 10259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (params instanceof LayoutParams) { 10269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (LayoutParams) v.getLayoutParams(); 10279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 10309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int getRelatedViewBaseline(int[] rules, int relation) { 10339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getRelatedView(rules, relation); 10349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) { 10359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return v.getBaseline(); 10369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return -1; 10389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1040f16c7a97548cedccea291ffebc4388a7f15c9aa1Romain Guy private static void centerHorizontal(View child, LayoutParams params, int myWidth) { 10419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childWidth = child.getMeasuredWidth(); 10429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int left = (myWidth - childWidth) / 2; 10439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mLeft = left; 10459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mRight = left + childWidth; 10469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1048f16c7a97548cedccea291ffebc4388a7f15c9aa1Romain Guy private static void centerVertical(View child, LayoutParams params, int myHeight) { 10499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childHeight = child.getMeasuredHeight(); 10509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int top = (myHeight - childHeight) / 2; 10519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mTop = top; 10539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mBottom = top + childHeight; 10549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 10579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 10589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The layout has actually already been performed and the positions 10599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // cached. Apply the cached values to the children. 106013705eda8cc065ee98feb94af649615579cd4a58Fabrice Di Meglio final int count = getChildCount(); 10619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 10639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 10649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() != GONE) { 10659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RelativeLayout.LayoutParams st = 10669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (RelativeLayout.LayoutParams) child.getLayoutParams(); 10679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.layout(st.mLeft, st.mTop, st.mRight, st.mBottom); 10689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 10739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams generateLayoutParams(AttributeSet attrs) { 10749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new RelativeLayout.LayoutParams(getContext(), attrs); 10759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns a set of layout parameters with a width of 10799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup.LayoutParams#WRAP_CONTENT}, 10809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * a height of {@link android.view.ViewGroup.LayoutParams#WRAP_CONTENT} and no spanning. 10819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 10839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateDefaultLayoutParams() { 10849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT); 10859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Override to allow type-checking of LayoutParams. 10889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 10899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 10909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof RelativeLayout.LayoutParams; 10919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 10949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 10959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(p); 10969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 109875986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov @Override 109975986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) { 110075986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov if (mTopToBottomLeftToRightSet == null) { 110175986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov mTopToBottomLeftToRightSet = new TreeSet<View>(new TopToBottomLeftToRightComparator()); 110275986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 110375986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov 110475986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov // sort children top-to-bottom and left-to-right 110575986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov for (int i = 0, count = getChildCount(); i < count; i++) { 110675986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov mTopToBottomLeftToRightSet.add(getChildAt(i)); 110775986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 110875986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov 110975986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov for (View view : mTopToBottomLeftToRightSet) { 11100b0a41d8e26eaf0f1d9d922621494daf40964a9aSvetoslav Ganov if (view.getVisibility() == View.VISIBLE 11110b0a41d8e26eaf0f1d9d922621494daf40964a9aSvetoslav Ganov && view.dispatchPopulateAccessibilityEvent(event)) { 111275986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov mTopToBottomLeftToRightSet.clear(); 111375986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov return true; 111475986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 111575986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 111675986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov 111775986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov mTopToBottomLeftToRightSet.clear(); 111875986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov return false; 111975986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 112075986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov 11218a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 11228a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityEvent(AccessibilityEvent event) { 11238a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityEvent(event); 11248a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov event.setClassName(RelativeLayout.class.getName()); 11258a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 11268a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 11278a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 11288a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { 11298a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityNodeInfo(info); 11308a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov info.setClassName(RelativeLayout.class.getName()); 11318a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 11328a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 113375986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov /** 113475986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov * Compares two views in left-to-right and top-to-bottom fashion. 113575986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov */ 113675986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov private class TopToBottomLeftToRightComparator implements Comparator<View> { 113775986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov public int compare(View first, View second) { 113875986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov // top - bottom 113975986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov int topDifference = first.getTop() - second.getTop(); 114075986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov if (topDifference != 0) { 114175986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov return topDifference; 114275986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 114375986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov // left - right 114475986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov int leftDifference = first.getLeft() - second.getLeft(); 114575986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov if (leftDifference != 0) { 114675986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov return leftDifference; 114775986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 114875986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov // break tie by height 114975986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov int heightDiference = first.getHeight() - second.getHeight(); 115075986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov if (heightDiference != 0) { 115175986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov return heightDiference; 115275986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 115375986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov // break tie by width 115475986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov int widthDiference = first.getWidth() - second.getWidth(); 115575986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov if (widthDiference != 0) { 115675986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov return widthDiference; 115775986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 115875986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov return 0; 115975986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 116075986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 116175986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov 11629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Per-child layout information associated with RelativeLayout. 11649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignWithParentIfMissing 11669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_toLeftOf 11679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_toRightOf 11689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_above 11699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_below 11709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignBaseline 11719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignLeft 11729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignTop 11739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignRight 11749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignBottom 11759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignParentLeft 11769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignParentTop 11779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignParentRight 11789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignParentBottom 11799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_centerInParent 11809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_centerHorizontal 11819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_centerVertical 1182f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * @attr ref android.R.styleable#RelativeLayout_Layout_layout_toStartOf 1183f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * @attr ref android.R.styleable#RelativeLayout_Layout_layout_toEndOf 1184f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignStart 1185f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignEnd 1186f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignParentStart 1187f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignParentEnd 11889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class LayoutParams extends ViewGroup.MarginLayoutParams { 1190bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "layout", resolveId = true, indexMapping = { 1191c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ABOVE, to = "above"), 1192c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_BASELINE, to = "alignBaseline"), 1193c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_BOTTOM, to = "alignBottom"), 1194c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_LEFT, to = "alignLeft"), 1195c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_PARENT_BOTTOM, to = "alignParentBottom"), 1196c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_PARENT_LEFT, to = "alignParentLeft"), 1197c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_PARENT_RIGHT, to = "alignParentRight"), 1198c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_PARENT_TOP, to = "alignParentTop"), 1199c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_RIGHT, to = "alignRight"), 1200c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_TOP, to = "alignTop"), 1201c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = BELOW, to = "below"), 1202c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = CENTER_HORIZONTAL, to = "centerHorizontal"), 1203c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = CENTER_IN_PARENT, to = "center"), 1204c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = CENTER_VERTICAL, to = "centerVertical"), 1205c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = LEFT_OF, to = "leftOf"), 1206f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio @ViewDebug.IntToString(from = RIGHT_OF, to = "rightOf"), 1207f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio @ViewDebug.IntToString(from = ALIGN_START, to = "alignStart"), 1208f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio @ViewDebug.IntToString(from = ALIGN_END, to = "alignEnd"), 1209f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio @ViewDebug.IntToString(from = ALIGN_PARENT_START, to = "alignParentStart"), 1210f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio @ViewDebug.IntToString(from = ALIGN_PARENT_END, to = "alignParentEnd"), 1211f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio @ViewDebug.IntToString(from = START_OF, to = "startOf"), 1212f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio @ViewDebug.IntToString(from = END_OF, to = "endOf") 1213105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project }, mapping = { 1214105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project @ViewDebug.IntToString(from = TRUE, to = "true"), 1215a1f3e4aef19882b4b81075d9205bd363efe1e66dRomain Guy @ViewDebug.IntToString(from = 0, to = "false/NO_ID") 1216105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project }) 1217f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio 12189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int[] mRules = new int[VERB_COUNT]; 1219f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio private int[] mInitialRules = new int[VERB_COUNT]; 1220c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project 12219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLeft, mTop, mRight, mBottom; 12229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1223f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio private int mStart = DEFAULT_RELATIVE; 1224f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio private int mEnd = DEFAULT_RELATIVE; 1225f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio 1226f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio private boolean mRulesChanged = false; 1227c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio private boolean mIsRtlCompatibilityMode = false; 1228f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio 12299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When true, uses the parent as the anchor if the anchor doesn't exist or if 12319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the anchor's visibility is GONE. 12329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1233bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "layout") 12349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean alignWithParent; 12359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(Context c, AttributeSet attrs) { 12379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(c, attrs); 12389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = c.obtainStyledAttributes(attrs, 12409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.RelativeLayout_Layout); 12419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1242c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio final int targetSdkVersion = c.getApplicationInfo().targetSdkVersion; 1243c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mIsRtlCompatibilityMode = (targetSdkVersion < JELLY_BEAN_MR1 || 1244c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio !c.getApplicationInfo().hasRtlSupport()); 1245c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio 12469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] rules = mRules; 1247f16c7a97548cedccea291ffebc4388a7f15c9aa1Romain Guy //noinspection MismatchedReadAndWriteOfArray 1248f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio final int[] initialRules = mInitialRules; 12499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int N = a.getIndexCount(); 12519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < N; i++) { 12529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int attr = a.getIndex(i); 12539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (attr) { 12549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignWithParentIfMissing: 12559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project alignWithParent = a.getBoolean(attr, false); 12569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 12579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_toLeftOf: 12589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[LEFT_OF] = a.getResourceId(attr, 0); 12599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 12609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_toRightOf: 12619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[RIGHT_OF] = a.getResourceId(attr, 0); 12629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 12639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_above: 12649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ABOVE] = a.getResourceId(attr, 0); 12659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 12669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_below: 12679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[BELOW] = a.getResourceId(attr, 0); 12689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 12699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignBaseline: 12709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_BASELINE] = a.getResourceId(attr, 0); 12719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 12729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignLeft: 12739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_LEFT] = a.getResourceId(attr, 0); 12749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 12759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignTop: 12769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_TOP] = a.getResourceId(attr, 0); 12779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 12789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignRight: 12799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_RIGHT] = a.getResourceId(attr, 0); 12809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 12819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignBottom: 12829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_BOTTOM] = a.getResourceId(attr, 0); 12839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 12849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignParentLeft: 12859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_PARENT_LEFT] = a.getBoolean(attr, false) ? TRUE : 0; 12869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 12879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignParentTop: 12889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_PARENT_TOP] = a.getBoolean(attr, false) ? TRUE : 0; 12899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 12909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignParentRight: 12919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_PARENT_RIGHT] = 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_alignParentBottom: 12949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_PARENT_BOTTOM] = 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_centerInParent: 12979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[CENTER_IN_PARENT] = 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_centerHorizontal: 13009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[CENTER_HORIZONTAL] = 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_centerVertical: 13039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[CENTER_VERTICAL] = a.getBoolean(attr, false) ? TRUE : 0; 13049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 1305f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio case com.android.internal.R.styleable.RelativeLayout_Layout_layout_toStartOf: 1306f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio rules[START_OF] = a.getResourceId(attr, 0); 1307f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio break; 1308f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio case com.android.internal.R.styleable.RelativeLayout_Layout_layout_toEndOf: 1309f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio rules[END_OF] = a.getResourceId(attr, 0); 1310f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio break; 1311f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignStart: 1312f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio rules[ALIGN_START] = a.getResourceId(attr, 0); 1313f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio break; 1314f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignEnd: 1315f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio rules[ALIGN_END] = a.getResourceId(attr, 0); 1316f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio break; 1317f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignParentStart: 1318f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio rules[ALIGN_PARENT_START] = a.getBoolean(attr, false) ? TRUE : 0; 1319f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio break; 1320f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignParentEnd: 1321f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio rules[ALIGN_PARENT_END] = a.getBoolean(attr, false) ? TRUE : 0; 1322f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio break; 13239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1326f16c7a97548cedccea291ffebc4388a7f15c9aa1Romain Guy System.arraycopy(rules, LEFT_OF, initialRules, LEFT_OF, VERB_COUNT); 1327f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio 13289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 13299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h) { 13329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 13339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 13379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams source) { 13399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 13409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 13449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.MarginLayoutParams source) { 13469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 13479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 13509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String debug(String output) { 13519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return output + "ViewGroup.LayoutParams={ width=" + sizeToString(width) + 13529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ", height=" + sizeToString(height) + " }"; 13539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Adds a layout rule to be interpreted by the RelativeLayout. This 13579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * method should only be used for constraints that don't refer to another sibling 13589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (e.g., CENTER_IN_PARENT) or take a boolean value ({@link RelativeLayout#TRUE} 1359f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * for true or 0 for false). To specify a verb that takes a subject, use 13609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #addRule(int, int)} instead. 13619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param verb One of the verbs defined by 13639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.RelativeLayout RelativeLayout}, such as 13649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * ALIGN_WITH_PARENT_LEFT. 13659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #addRule(int, int) 13669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addRule(int verb) { 13689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRules[verb] = TRUE; 1369f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio mInitialRules[verb] = TRUE; 1370f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio mRulesChanged = true; 13719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Adds a layout rule to be interpreted by the RelativeLayout. Use this for 13759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * verbs that take a target, such as a sibling (ALIGN_RIGHT) or a boolean 13769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * value (VISIBLE). 13779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param verb One of the verbs defined by 13799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.RelativeLayout RelativeLayout}, such as 13809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * ALIGN_WITH_PARENT_LEFT. 13819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param anchor The id of another view to use as an anchor, 13829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * or a boolean value(represented as {@link RelativeLayout#TRUE}) 13839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * for true or 0 for false). For verbs that don't refer to another sibling 13849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (for example, ALIGN_WITH_PARENT_BOTTOM) just use -1. 13859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #addRule(int) 13869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addRule(int verb, int anchor) { 13889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRules[verb] = anchor; 1389f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio mInitialRules[verb] = anchor; 1390f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio mRulesChanged = true; 1391f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio } 1392f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio 1393a4c1030870d8c91b6d871922c3e6962323700f25Fabrice Di Meglio /** 1394a4c1030870d8c91b6d871922c3e6962323700f25Fabrice Di Meglio * Removes a layout rule to be interpreted by the RelativeLayout. 1395a4c1030870d8c91b6d871922c3e6962323700f25Fabrice Di Meglio * 1396a4c1030870d8c91b6d871922c3e6962323700f25Fabrice Di Meglio * @param verb One of the verbs defined by 1397a4c1030870d8c91b6d871922c3e6962323700f25Fabrice Di Meglio * {@link android.widget.RelativeLayout RelativeLayout}, such as 1398a4c1030870d8c91b6d871922c3e6962323700f25Fabrice Di Meglio * ALIGN_WITH_PARENT_LEFT. 1399a4c1030870d8c91b6d871922c3e6962323700f25Fabrice Di Meglio * @see #addRule(int) 1400a4c1030870d8c91b6d871922c3e6962323700f25Fabrice Di Meglio * @see #addRule(int, int) 1401a4c1030870d8c91b6d871922c3e6962323700f25Fabrice Di Meglio */ 1402a4c1030870d8c91b6d871922c3e6962323700f25Fabrice Di Meglio public void removeRule(int verb) { 1403a4c1030870d8c91b6d871922c3e6962323700f25Fabrice Di Meglio mRules[verb] = 0; 1404a4c1030870d8c91b6d871922c3e6962323700f25Fabrice Di Meglio mInitialRules[verb] = 0; 1405a4c1030870d8c91b6d871922c3e6962323700f25Fabrice Di Meglio mRulesChanged = true; 1406a4c1030870d8c91b6d871922c3e6962323700f25Fabrice Di Meglio } 1407a4c1030870d8c91b6d871922c3e6962323700f25Fabrice Di Meglio 1408f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio private boolean hasRelativeRules() { 1409f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio return (mInitialRules[START_OF] != 0 || mInitialRules[END_OF] != 0 || 1410f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio mInitialRules[ALIGN_START] != 0 || mInitialRules[ALIGN_END] != 0 || 1411f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio mInitialRules[ALIGN_PARENT_START] != 0 || mInitialRules[ALIGN_PARENT_END] != 0); 1412f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio } 1413f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio 1414c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // The way we are resolving rules depends on the layout direction and if we are pre JB MR1 1415c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // or not. 1416c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // 1417c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // If we are pre JB MR1 (said as "RTL compatibility mode"), "left"/"right" rules are having 1418c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // predominance over any "start/end" rules that could have been defined. A special case: 1419c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // if no "left"/"right" rule has been defined and "start"/"end" rules are defined then we 1420c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // resolve those "start"/"end" rules to "left"/"right" respectively. 1421c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // 1422c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // If we are JB MR1+, then "start"/"end" rules are having predominance over "left"/"right" 1423c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // rules. If no "start"/"end" rule is defined then we use "left"/"right" rules. 1424c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // 1425c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // In all cases, the result of the resolution should clear the "start"/"end" rules to leave 1426c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // only the "left"/"right" rules at the end. 1427f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio private void resolveRules(int layoutDirection) { 1428f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio final boolean isLayoutRtl = (layoutDirection == View.LAYOUT_DIRECTION_RTL); 1429c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio 1430f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio // Reset to initial state 1431f16c7a97548cedccea291ffebc4388a7f15c9aa1Romain Guy System.arraycopy(mInitialRules, LEFT_OF, mRules, LEFT_OF, VERB_COUNT); 1432c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio 1433c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // Apply rules depending on direction and if we are in RTL compatibility mode 1434c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio if (mIsRtlCompatibilityMode) { 1435c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio if (mRules[ALIGN_START] != 0) { 1436c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio if (mRules[ALIGN_LEFT] == 0) { 1437c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // "left" rule is not defined but "start" rule is: use the "start" rule as 1438c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // the "left" rule 1439c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[ALIGN_LEFT] = mRules[ALIGN_START]; 1440c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio } 1441c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[ALIGN_START] = 0; 1442c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio } 1443c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio 1444c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio if (mRules[ALIGN_END] != 0) { 1445c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio if (mRules[ALIGN_RIGHT] == 0) { 1446c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // "right" rule is not defined but "end" rule is: use the "end" rule as the 1447c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // "right" rule 1448c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[ALIGN_RIGHT] = mRules[ALIGN_END]; 1449c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio } 1450c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[ALIGN_END] = 0; 1451c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio } 1452c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio 1453c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio if (mRules[START_OF] != 0) { 1454c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio if (mRules[LEFT_OF] == 0) { 1455c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // "left" rule is not defined but "start" rule is: use the "start" rule as 1456c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // the "left" rule 1457c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[LEFT_OF] = mRules[START_OF]; 1458c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio } 1459c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[START_OF] = 0; 1460c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio } 1461c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio 1462c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio if (mRules[END_OF] != 0) { 1463c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio if (mRules[RIGHT_OF] == 0) { 1464c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // "right" rule is not defined but "end" rule is: use the "end" rule as the 1465c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // "right" rule 1466c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[RIGHT_OF] = mRules[END_OF]; 1467c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio } 1468c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[END_OF] = 0; 1469c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio } 1470c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio 1471c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio if (mRules[ALIGN_PARENT_START] != 0) { 1472c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio if (mRules[ALIGN_PARENT_LEFT] == 0) { 1473c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // "left" rule is not defined but "start" rule is: use the "start" rule as 1474c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // the "left" rule 1475c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[ALIGN_PARENT_LEFT] = mRules[ALIGN_PARENT_START]; 1476c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio } 1477c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[ALIGN_PARENT_START] = 0; 1478c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio } 1479c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio 1480c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio if (mRules[ALIGN_PARENT_RIGHT] == 0) { 1481c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio if (mRules[ALIGN_PARENT_RIGHT] == 0) { 1482c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // "right" rule is not defined but "end" rule is: use the "end" rule as the 1483c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // "right" rule 1484c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[ALIGN_PARENT_RIGHT] = mRules[ALIGN_PARENT_END]; 1485c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio } 1486c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[ALIGN_PARENT_END] = 0; 1487c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio } 1488c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio } else { 1489c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // JB MR1+ case 1490c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio if ((mRules[ALIGN_START] != 0 || mRules[ALIGN_END] != 0) && 1491c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio (mRules[ALIGN_LEFT] != 0 || mRules[ALIGN_RIGHT] != 0)) { 1492c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // "start"/"end" rules take precedence over "left"/"right" rules 1493c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[ALIGN_LEFT] = 0; 1494c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[ALIGN_RIGHT] = 0; 1495c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio } 1496c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio if (mRules[ALIGN_START] != 0) { 1497c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // "start" rule resolved to "left" or "right" depending on the direction 1498c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[isLayoutRtl ? ALIGN_RIGHT : ALIGN_LEFT] = mRules[ALIGN_START]; 1499c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[ALIGN_START] = 0; 1500c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio } 1501c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio if (mRules[ALIGN_END] != 0) { 1502c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // "end" rule resolved to "left" or "right" depending on the direction 1503c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[isLayoutRtl ? ALIGN_LEFT : ALIGN_RIGHT] = mRules[ALIGN_END]; 1504c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[ALIGN_END] = 0; 1505c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio } 1506c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio 1507c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio if ((mRules[START_OF] != 0 || mRules[END_OF] != 0) && 1508c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio (mRules[LEFT_OF] != 0 || mRules[RIGHT_OF] != 0)) { 1509c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // "start"/"end" rules take precedence over "left"/"right" rules 1510c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[LEFT_OF] = 0; 1511c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[RIGHT_OF] = 0; 1512c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio } 1513c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio if (mRules[START_OF] != 0) { 1514c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // "start" rule resolved to "left" or "right" depending on the direction 1515c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[isLayoutRtl ? RIGHT_OF : LEFT_OF] = mRules[START_OF]; 1516c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[START_OF] = 0; 1517c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio } 1518c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio if (mRules[END_OF] != 0) { 1519c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // "end" rule resolved to "left" or "right" depending on the direction 1520c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[isLayoutRtl ? LEFT_OF : RIGHT_OF] = mRules[END_OF]; 1521c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[END_OF] = 0; 1522c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio } 1523c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio 1524c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio if ((mRules[ALIGN_PARENT_START] != 0 || mRules[ALIGN_PARENT_END] != 0) && 1525c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio (mRules[ALIGN_PARENT_LEFT] != 0 || mRules[ALIGN_PARENT_RIGHT] != 0)) { 1526c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // "start"/"end" rules take precedence over "left"/"right" rules 1527c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[ALIGN_PARENT_LEFT] = 0; 1528c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[ALIGN_PARENT_RIGHT] = 0; 1529c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio } 1530c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio if (mRules[ALIGN_PARENT_START] != 0) { 1531c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // "start" rule resolved to "left" or "right" depending on the direction 1532c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[isLayoutRtl ? ALIGN_PARENT_RIGHT : ALIGN_PARENT_LEFT] = mRules[ALIGN_PARENT_START]; 1533c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[ALIGN_PARENT_START] = 0; 1534c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio } 1535c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio if (mRules[ALIGN_PARENT_END] != 0) { 1536c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio // "end" rule resolved to "left" or "right" depending on the direction 1537c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[isLayoutRtl ? ALIGN_PARENT_LEFT : ALIGN_PARENT_RIGHT] = mRules[ALIGN_PARENT_END]; 1538c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio mRules[ALIGN_PARENT_END] = 0; 1539c44d880c508ded633b61930e1964df70876ec42fFabrice Di Meglio } 1540f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio } 1541f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio mRulesChanged = false; 1542f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio } 1543f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio 1544f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio /** 1545f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * Retrieves a complete list of all supported rules, where the index is the rule 1546f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * verb, and the element value is the value specified, or "false" if it was never 1547f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * set. If there are relative rules defined (*_START / *_END), they will be resolved 1548f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * depending on the layout direction. 1549f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * 1550f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * @param layoutDirection the direction of the layout. 1551f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * Should be either {@link View#LAYOUT_DIRECTION_LTR} 1552f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * or {@link View#LAYOUT_DIRECTION_RTL} 1553f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * @return the supported rules 1554f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * @see #addRule(int, int) 1555f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * 1556f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * @hide 1557f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio */ 1558f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio public int[] getRules(int layoutDirection) { 1559f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio if (hasRelativeRules() && 1560f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio (mRulesChanged || layoutDirection != getLayoutDirection())) { 1561f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio resolveRules(layoutDirection); 1562f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio if (layoutDirection != getLayoutDirection()) { 1563f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio setLayoutDirection(layoutDirection); 1564f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio } 1565f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio } 1566f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio return mRules; 15679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Retrieves a complete list of all supported rules, where the index is the rule 15719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * verb, and the element value is the value specified, or "false" if it was never 1572f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio * set. There will be no resolution of relative rules done. 15739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the supported rules 15759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #addRule(int, int) 15769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int[] getRules() { 15789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mRules; 15799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1580f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio 1581f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio @Override 15822918ab6c3258639148b8a5c78a34483af195246eFabrice Di Meglio public void resolveLayoutDirection(int layoutDirection) { 1583f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio final boolean isLayoutRtl = isLayoutRtl(); 1584f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio if (isLayoutRtl) { 1585f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio if (mStart != DEFAULT_RELATIVE) mRight = mStart; 1586f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio if (mEnd != DEFAULT_RELATIVE) mLeft = mEnd; 1587f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio } else { 1588f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio if (mStart != DEFAULT_RELATIVE) mLeft = mStart; 1589f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio if (mEnd != DEFAULT_RELATIVE) mRight = mEnd; 1590f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio } 1591f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio 1592f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio if (hasRelativeRules() && layoutDirection != getLayoutDirection()) { 1593f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio resolveRules(layoutDirection); 1594f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio } 1595f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio // This will set the layout direction 15962918ab6c3258639148b8a5c78a34483af195246eFabrice Di Meglio super.resolveLayoutDirection(layoutDirection); 1597f443f98e7f41badd8f5d6f7bf7d26432e79a88edFabrice Di Meglio } 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1599725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1600725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private static class DependencyGraph { 1601725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 16021ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy * List of all views in the graph. 16031ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy */ 16041ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy private ArrayList<Node> mNodes = new ArrayList<Node>(); 16051ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy 16061ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy /** 1607725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * List of nodes in the graph. Each node is identified by its 1608725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * view id (see View#getId()). 1609725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 16101ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy private SparseArray<Node> mKeyNodes = new SparseArray<Node>(); 1611725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1612725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1613725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * Temporary data structure used to build the list of roots 1614725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * for this graph. 1615725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1616bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy private ArrayDeque<Node> mRoots = new ArrayDeque<Node>(); 1617725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1618725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1619725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * Clears the graph. 1620725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1621725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy void clear() { 16221ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final ArrayList<Node> nodes = mNodes; 1623725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final int count = nodes.size(); 1624725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1625725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 16261ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy nodes.get(i).release(); 1627725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1628725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy nodes.clear(); 1629725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 16301ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy mKeyNodes.clear(); 1631725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy mRoots.clear(); 1632725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1633725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1634725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1635725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * Adds a view to the graph. 1636725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * 1637725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * @param view The view to be added as a node to the graph. 1638725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1639725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy void add(View view) { 16401ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final int id = view.getId(); 16411ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final Node node = Node.acquire(view); 16421ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy 16431ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy if (id != View.NO_ID) { 16441ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy mKeyNodes.put(id, node); 16451ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy } 16461ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy 16471ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy mNodes.add(node); 1648725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1649725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1650725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1651725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * Builds a sorted list of views. The sorting order depends on the dependencies 1652725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * between the view. For instance, if view C needs view A to be processed first 1653725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * and view A needs view B to be processed first, the dependency graph 1654725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * is: B -> A -> C. The sorted array will contain views B, A and C in this order. 1655725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * 1656725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * @param sorted The sorted list of views. The length of this array must 1657725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * be equal to getChildCount(). 1658725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * @param rules The list of rules to take into account. 1659725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1660725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy void getSortedViews(View[] sorted, int... rules) { 1661bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy final ArrayDeque<Node> roots = findRoots(rules); 1662725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy int index = 0; 1663725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1664bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy Node node; 1665bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy while ((node = roots.pollLast()) != null) { 1666725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final View view = node.view; 1667725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final int key = view.getId(); 1668725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1669725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy sorted[index++] = view; 1670725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1671bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy final HashMap<Node, DependencyGraph> dependents = node.dependents; 1672bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy for (Node dependent : dependents.keySet()) { 1673725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final SparseArray<Node> dependencies = dependent.dependencies; 1674725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1675725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy dependencies.remove(key); 1676725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (dependencies.size() == 0) { 1677725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy roots.add(dependent); 1678725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1679725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1680725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1681725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1682725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (index < sorted.length) { 1683725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy throw new IllegalStateException("Circular dependencies cannot exist" 1684725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy + " in RelativeLayout"); 1685725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1686725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1687725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1688725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1689725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * Finds the roots of the graph. A root is a node with no dependency and 1690725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * with [0..n] dependents. 1691725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * 1692725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * @param rulesFilter The list of rules to consider when building the 1693725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * dependencies 1694725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * 1695725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * @return A list of node, each being a root of the graph 1696725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1697bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy private ArrayDeque<Node> findRoots(int[] rulesFilter) { 16981ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final SparseArray<Node> keyNodes = mKeyNodes; 16991ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final ArrayList<Node> nodes = mNodes; 1700725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final int count = nodes.size(); 1701725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1702725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // Find roots can be invoked several times, so make sure to clear 1703725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // all dependents and dependencies before running the algorithm 1704725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 17051ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final Node node = nodes.get(i); 1706725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy node.dependents.clear(); 1707725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy node.dependencies.clear(); 1708725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1709725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1710725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // Builds up the dependents and dependencies for each node of the graph 1711725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 17121ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final Node node = nodes.get(i); 1713725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1714725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final LayoutParams layoutParams = (LayoutParams) node.view.getLayoutParams(); 1715725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final int[] rules = layoutParams.mRules; 1716725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final int rulesCount = rulesFilter.length; 1717725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1718725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // Look only the the rules passed in parameter, this way we build only the 1719725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // dependencies for a specific set of rules 1720725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int j = 0; j < rulesCount; j++) { 1721725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final int rule = rules[rulesFilter[j]]; 1722725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (rule > 0) { 1723725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // The node this node depends on 17241ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final Node dependency = keyNodes.get(rule); 1725da3003e1d71d66a1c936489025f8db314a2a4588Romain Guy // Skip unknowns and self dependencies 1726da3003e1d71d66a1c936489025f8db314a2a4588Romain Guy if (dependency == null || dependency == node) { 1727b8f8de85160b0a072158b45320e9fc2adba545f5Romain Guy continue; 1728b8f8de85160b0a072158b45320e9fc2adba545f5Romain Guy } 1729725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // Add the current node as a dependent 1730bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy dependency.dependents.put(node, this); 1731725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // Add a dependency to the current node 1732725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy node.dependencies.put(rule, dependency); 1733725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1734725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1735725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1736725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1737bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy final ArrayDeque<Node> roots = mRoots; 1738725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy roots.clear(); 1739725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1740725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // Finds all the roots in the graph: all nodes with no dependencies 1741725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 17421ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final Node node = nodes.get(i); 1743bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy if (node.dependencies.size() == 0) roots.addLast(node); 1744725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1745725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1746725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy return roots; 1747725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1748725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1749725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1750725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * Prints the dependency graph for the specified rules. 1751725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * 1752725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * @param resources The context's resources to print the ids. 1753725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * @param rules The list of rules to take into account. 1754725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1755725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy void log(Resources resources, int... rules) { 1756bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy final ArrayDeque<Node> roots = findRoots(rules); 1757725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (Node node : roots) { 1758725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy printNode(resources, node); 1759725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1760725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1761725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 17629fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy static void printViewId(Resources resources, View view) { 1763725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (view.getId() != View.NO_ID) { 1764725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy d(LOG_TAG, resources.getResourceEntryName(view.getId())); 1765725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } else { 1766725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy d(LOG_TAG, "NO_ID"); 1767725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1768725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1769725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1770725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private static void appendViewId(Resources resources, Node node, StringBuilder buffer) { 1771725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (node.view.getId() != View.NO_ID) { 1772725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy buffer.append(resources.getResourceEntryName(node.view.getId())); 1773725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } else { 1774725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy buffer.append("NO_ID"); 1775725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1776725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1777725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1778725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private static void printNode(Resources resources, Node node) { 1779725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (node.dependents.size() == 0) { 1780725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy printViewId(resources, node.view); 1781725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } else { 1782bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy for (Node dependent : node.dependents.keySet()) { 1783725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy StringBuilder buffer = new StringBuilder(); 1784725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy appendViewId(resources, node, buffer); 1785725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy printdependents(resources, dependent, buffer); 1786725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1787725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1788725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1789725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1790725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private static void printdependents(Resources resources, Node node, StringBuilder buffer) { 1791725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy buffer.append(" -> "); 1792725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy appendViewId(resources, node, buffer); 1793725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1794725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (node.dependents.size() == 0) { 1795725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy d(LOG_TAG, buffer.toString()); 1796725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } else { 1797bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy for (Node dependent : node.dependents.keySet()) { 1798725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy StringBuilder subBuffer = new StringBuilder(buffer); 1799725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy printdependents(resources, dependent, subBuffer); 1800725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1801725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1802725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1803725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1804725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1805725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * A node in the dependency graph. A node is a view, its list of dependencies 1806725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * and its list of dependents. 1807725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * 1808725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * A node with no dependent is considered a root of the graph. 1809725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1810abae2a1b891772d36d8f781adfcc8969e551691fSvetoslav Ganov static class Node { 1811725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1812725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * The view representing this node in the layout. 1813725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1814725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy View view; 1815725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1816725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1817725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * The list of dependents for this node; a dependent is a node 1818725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * that needs this node to be processed first. 1819725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1820bc5d876df0856e027f1e2cfce91cbdedb6aaf66fRomain Guy final HashMap<Node, DependencyGraph> dependents = new HashMap<Node, DependencyGraph>(); 1821725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1822725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1823725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * The list of dependencies for this node. 1824725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1825725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final SparseArray<Node> dependencies = new SparseArray<Node>(); 1826725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1827725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /* 1828725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * START POOL IMPLEMENTATION 1829725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1830baac46339da03aed166e8a4240ad063caad019adRomain Guy // The pool is static, so all nodes instances are shared across 1831baac46339da03aed166e8a4240ad063caad019adRomain Guy // activities, that's why we give it a rather high limit 1832baac46339da03aed166e8a4240ad063caad019adRomain Guy private static final int POOL_LIMIT = 100; 1833abae2a1b891772d36d8f781adfcc8969e551691fSvetoslav Ganov private static final SimplePool<Node> sPool = new SimplePool<Node>(POOL_LIMIT); 18348643aa0179e598e78d938c59035389054535a229Svetoslav Ganov 1835725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy static Node acquire(View view) { 1836abae2a1b891772d36d8f781adfcc8969e551691fSvetoslav Ganov Node node = sPool.acquire(); 1837abae2a1b891772d36d8f781adfcc8969e551691fSvetoslav Ganov if (node == null) { 1838abae2a1b891772d36d8f781adfcc8969e551691fSvetoslav Ganov node = new Node(); 1839abae2a1b891772d36d8f781adfcc8969e551691fSvetoslav Ganov } 1840725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy node.view = view; 1841725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy return node; 1842725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1843725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1844725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy void release() { 1845725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy view = null; 1846725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy dependents.clear(); 1847725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy dependencies.clear(); 1848725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1849725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy sPool.release(this); 1850725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1851725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /* 1852725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * END POOL IMPLEMENTATION 1853725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1854725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1855725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 18569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1857