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 1975986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganovimport com.android.internal.R; 2075986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.Context; 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.res.TypedArray; 23725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guyimport android.content.res.Resources; 2475986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganovimport android.graphics.Rect; 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.AttributeSet; 26725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guyimport android.util.SparseArray; 27725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guyimport android.util.Poolable; 28725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guyimport android.util.Pool; 29725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guyimport android.util.Pools; 30725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guyimport android.util.PoolableManager; 31725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guyimport static android.util.Log.d; 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.Gravity; 3375986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganovimport android.view.View; 34c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Projectimport android.view.ViewDebug; 3575986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganovimport android.view.ViewGroup; 3675986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganovimport android.view.accessibility.AccessibilityEvent; 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.widget.RemoteViews.RemoteView; 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3975986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganovimport java.util.Comparator; 4075986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganovimport java.util.SortedSet; 4175986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganovimport java.util.TreeSet; 42725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guyimport java.util.LinkedList; 43725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guyimport java.util.HashSet; 441ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guyimport java.util.ArrayList; 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A Layout where the positions of the children can be described in relation to each other or to the 48520c4204fb9d4f2a7a79dcb5d171e681b7bc6a07Romain Guy * parent. 49a1f3e4aef19882b4b81075d9205bd363efe1e66dRomain Guy * 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p> 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that you cannot have a circular dependency between the size of the RelativeLayout and the 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position of its children. For example, you cannot have a RelativeLayout whose height is set to 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup.LayoutParams#WRAP_CONTENT WRAP_CONTENT} and a child set to 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #ALIGN_PARENT_BOTTOM}. 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * </p> 56a1f3e4aef19882b4b81075d9205bd363efe1e66dRomain Guy * 5741ec65355bd6ded652769725b276d47c54a0d913Scott Main * <p>See the <a href="{@docRoot}resources/tutorials/views/hello-relativelayout.html">Relative 5841ec65355bd6ded652769725b276d47c54a0d913Scott Main * Layout tutorial</a>.</p> 5941ec65355bd6ded652769725b276d47c54a0d913Scott Main * 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p> 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Also see {@link android.widget.RelativeLayout.LayoutParams RelativeLayout.LayoutParams} for 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout attributes 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * </p> 64a1f3e4aef19882b4b81075d9205bd363efe1e66dRomain Guy * 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_gravity 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_ignoreGravity 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project@RemoteView 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic class RelativeLayout extends ViewGroup { 70725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private static final String LOG_TAG = "RelativeLayout"; 71725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 72725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private static final boolean DEBUG_GRAPH = false; 73725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRUE = -1; 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's right edge with another child's left edge. 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int LEFT_OF = 0; 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's left edge with another child's right edge. 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int RIGHT_OF = 1; 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's bottom edge with another child's top edge. 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ABOVE = 2; 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's top edge with another child's bottom edge. 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int BELOW = 3; 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's baseline with another child's baseline. 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_BASELINE = 4; 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's left edge with another child's left edge. 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_LEFT = 5; 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's top edge with another child's top edge. 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_TOP = 6; 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's right edge with another child's right edge. 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_RIGHT = 7; 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's bottom edge with another child's bottom edge. 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_BOTTOM = 8; 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns the child's left edge with its RelativeLayout 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * parent's left edge. 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_PARENT_LEFT = 9; 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns the child's top edge with its RelativeLayout 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * parent's top edge. 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_PARENT_TOP = 10; 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns the child's right edge with its RelativeLayout 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * parent's right edge. 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_PARENT_RIGHT = 11; 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns the child's bottom edge with its RelativeLayout 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * parent's bottom edge. 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_PARENT_BOTTOM = 12; 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that centers the child with respect to the bounds of its 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * RelativeLayout parent. 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int CENTER_IN_PARENT = 13; 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that centers the child horizontally with respect to the 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bounds of its RelativeLayout parent. 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int CENTER_HORIZONTAL = 14; 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that centers the child vertically with respect to the 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bounds of its RelativeLayout parent. 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int CENTER_VERTICAL = 15; 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int VERB_COUNT = 16; 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View mBaselineView = null; 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mHasBaselineAlignedChild; 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mGravity = Gravity.LEFT | Gravity.TOP; 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final Rect mContentBounds = new Rect(); 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final Rect mSelfBounds = new Rect(); 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mIgnoreGravity; 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 161725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private SortedSet<View> mTopToBottomLeftToRightSet = null; 162725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 163725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private boolean mDirtyHierarchy; 164725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private View[] mSortedHorizontalChildren = new View[0]; 165725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private View[] mSortedVerticalChildren = new View[0]; 166725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private final DependencyGraph mGraph = new DependencyGraph(); 16775986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public RelativeLayout(Context context) { 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context); 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public RelativeLayout(Context context, AttributeSet attrs) { 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, attrs); 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initFromAttributes(context, attrs); 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public RelativeLayout(Context context, AttributeSet attrs, int defStyle) { 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, attrs, defStyle); 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initFromAttributes(context, attrs); 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void initFromAttributes(Context context, AttributeSet attrs) { 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.RelativeLayout); 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIgnoreGravity = a.getResourceId(R.styleable.RelativeLayout_ignoreGravity, View.NO_ID); 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGravity = a.getInt(R.styleable.RelativeLayout_gravity, mGravity); 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines which View is ignored when the gravity is applied. This setting has no 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * effect if the gravity is <code>Gravity.LEFT | Gravity.TOP</code>. 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param viewId The id of the View to be ignored by gravity, or 0 if no View 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * should be ignored. 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setGravity(int) 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_ignoreGravity 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @android.view.RemotableViewMethod 2019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setIgnoreGravity(int viewId) { 2029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIgnoreGravity = viewId; 2039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Describes how the child views are positioned. Defaults to 2079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <code>Gravity.LEFT | Gravity.TOP</code>. 2089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param gravity See {@link android.view.Gravity} 2109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setHorizontalGravity(int) 2129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setVerticalGravity(int) 2139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_gravity 2159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @android.view.RemotableViewMethod 2179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setGravity(int gravity) { 2189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mGravity != gravity) { 2199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((gravity & Gravity.HORIZONTAL_GRAVITY_MASK) == 0) { 2209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project gravity |= Gravity.LEFT; 2219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((gravity & Gravity.VERTICAL_GRAVITY_MASK) == 0) { 2249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project gravity |= Gravity.TOP; 2259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGravity = gravity; 2289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 2299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @android.view.RemotableViewMethod 2339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setHorizontalGravity(int horizontalGravity) { 2349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int gravity = horizontalGravity & Gravity.HORIZONTAL_GRAVITY_MASK; 2359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) != gravity) { 2369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGravity = (mGravity & ~Gravity.HORIZONTAL_GRAVITY_MASK) | gravity; 2379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 2389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @android.view.RemotableViewMethod 2429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setVerticalGravity(int verticalGravity) { 2439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int gravity = verticalGravity & Gravity.VERTICAL_GRAVITY_MASK; 2449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != gravity) { 2459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGravity = (mGravity & ~Gravity.VERTICAL_GRAVITY_MASK) | gravity; 2469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 2479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getBaseline() { 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mBaselineView != null ? mBaselineView.getBaseline() : super.getBaseline(); 2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 256725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy public void requestLayout() { 257725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy super.requestLayout(); 258725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy mDirtyHierarchy = true; 259725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 260725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 261725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private void sortChildren() { 262725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy int count = getChildCount(); 263725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (mSortedVerticalChildren.length != count) mSortedVerticalChildren = new View[count]; 264725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (mSortedHorizontalChildren.length != count) mSortedHorizontalChildren = new View[count]; 265725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 266725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final DependencyGraph graph = mGraph; 267725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy graph.clear(); 268725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 269725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 270725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final View child = getChildAt(i); 271725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy graph.add(child); 272725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 273725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 274725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (DEBUG_GRAPH) { 275725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy d(LOG_TAG, "=== Sorted vertical children"); 276725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy graph.log(getResources(), ABOVE, BELOW, ALIGN_BASELINE, ALIGN_TOP, ALIGN_BOTTOM); 277725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy d(LOG_TAG, "=== Sorted horizontal children"); 278725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy graph.log(getResources(), LEFT_OF, RIGHT_OF, ALIGN_LEFT, ALIGN_RIGHT); 279725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 280725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 281725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy graph.getSortedViews(mSortedVerticalChildren, ABOVE, BELOW, ALIGN_BASELINE, 282725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy ALIGN_TOP, ALIGN_BOTTOM); 283725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy graph.getSortedViews(mSortedHorizontalChildren, LEFT_OF, RIGHT_OF, ALIGN_LEFT, ALIGN_RIGHT); 2849fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy 2859fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy if (DEBUG_GRAPH) { 2869fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy d(LOG_TAG, "=== Ordered list of vertical children"); 2879fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy for (View view : mSortedVerticalChildren) { 2889fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy DependencyGraph.printViewId(getResources(), view); 2899fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy } 2909fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy d(LOG_TAG, "=== Ordered list of horizontal children"); 2919fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy for (View view : mSortedHorizontalChildren) { 2929fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy DependencyGraph.printViewId(getResources(), view); 2939fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy } 2949fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy } 295725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 296725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 29742460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy // TODO: we need to find another way to implement RelativeLayout 29842460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy // This implementation cannot handle every case 299725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy @Override 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 301725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (mDirtyHierarchy) { 302725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy mDirtyHierarchy = false; 303725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy sortChildren(); 304725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 305725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int myWidth = -1; 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int myHeight = -1; 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int width = 0; 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = 0; 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int widthMode = MeasureSpec.getMode(widthMeasureSpec); 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int heightMode = MeasureSpec.getMode(heightMeasureSpec); 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int widthSize = MeasureSpec.getSize(widthMeasureSpec); 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int heightSize = MeasureSpec.getSize(heightMeasureSpec); 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Record our dimensions if they are known; 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (widthMode != MeasureSpec.UNSPECIFIED) { 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project myWidth = widthSize; 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (heightMode != MeasureSpec.UNSPECIFIED) { 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project myHeight = heightSize; 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (widthMode == MeasureSpec.EXACTLY) { 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project width = myWidth; 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (heightMode == MeasureSpec.EXACTLY) { 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = myHeight; 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mHasBaselineAlignedChild = false; 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View ignore = null; 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int gravity = mGravity & Gravity.HORIZONTAL_GRAVITY_MASK; 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean horizontalGravity = gravity != Gravity.LEFT && gravity != 0; 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean verticalGravity = gravity != Gravity.TOP && gravity != 0; 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int left = Integer.MAX_VALUE; 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int top = Integer.MAX_VALUE; 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int right = Integer.MIN_VALUE; 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int bottom = Integer.MIN_VALUE; 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 347f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy boolean offsetHorizontalAxis = false; 348f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy boolean offsetVerticalAxis = false; 349f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((horizontalGravity || verticalGravity) && mIgnoreGravity != View.NO_ID) { 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ignore = findViewById(mIgnoreGravity); 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 354f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy final boolean isWrapContentWidth = widthMode != MeasureSpec.EXACTLY; 355f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy final boolean isWrapContentHeight = heightMode != MeasureSpec.EXACTLY; 356f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 357e24ef6032f52cb754bfeb9ab32aae0a5cfa61f8aRomain Guy View[] views = mSortedHorizontalChildren; 358725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy int count = views.length; 359725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 360725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy View child = views[i]; 361725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (child.getVisibility() != GONE) { 362725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy LayoutParams params = (LayoutParams) child.getLayoutParams(); 363956070383945db5f842ec05e507fd0233705738cRomain Guy 364956070383945db5f842ec05e507fd0233705738cRomain Guy applyHorizontalSizeRules(params, myWidth); 365f782e60efc09f210643432f31b4c18026d7716d6Romain Guy measureChildHorizontal(child, params, myWidth, myHeight); 366f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (positionChildHorizontal(child, params, myWidth, isWrapContentWidth)) { 367f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy offsetHorizontalAxis = true; 368f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 369725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 370725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 371725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 372e24ef6032f52cb754bfeb9ab32aae0a5cfa61f8aRomain Guy views = mSortedVerticalChildren; 373725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy count = views.length; 374f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 375725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 376725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy View child = views[i]; 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() != GONE) { 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LayoutParams params = (LayoutParams) child.getLayoutParams(); 379956070383945db5f842ec05e507fd0233705738cRomain Guy 380956070383945db5f842ec05e507fd0233705738cRomain Guy applyVerticalSizeRules(params, myHeight); 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project measureChild(child, params, myWidth, myHeight); 382f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (positionChildVertical(child, params, myHeight, isWrapContentHeight)) { 383f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy offsetVerticalAxis = true; 384f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 386f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (isWrapContentWidth) { 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project width = Math.max(width, params.mRight); 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 389f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 390f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (isWrapContentHeight) { 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = Math.max(height, params.mBottom); 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != ignore || verticalGravity) { 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project left = Math.min(left, params.mLeft - params.leftMargin); 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project top = Math.min(top, params.mTop - params.topMargin); 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != ignore || horizontalGravity) { 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project right = Math.max(right, params.mRight + params.rightMargin); 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project bottom = Math.max(bottom, params.mBottom + params.bottomMargin); 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mHasBaselineAlignedChild) { 407725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() != GONE) { 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LayoutParams params = (LayoutParams) child.getLayoutParams(); 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project alignBaseline(child, params); 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != ignore || verticalGravity) { 414725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy left = Math.min(left, params.mLeft - params.leftMargin); 415725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy top = Math.min(top, params.mTop - params.topMargin); 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != ignore || horizontalGravity) { 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project right = Math.max(right, params.mRight + params.rightMargin); 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project bottom = Math.max(bottom, params.mBottom + params.bottomMargin); 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 426f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (isWrapContentWidth) { 427a1f3e4aef19882b4b81075d9205bd363efe1e66dRomain Guy // Width already has left padding in it since it was calculated by looking at 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the right of each child view 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project width += mPaddingRight; 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mLayoutParams.width >= 0) { 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project width = Math.max(width, mLayoutParams.width); 4339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project width = Math.max(width, getSuggestedMinimumWidth()); 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project width = resolveSize(width, widthMeasureSpec); 437f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 438f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (offsetHorizontalAxis) { 439d10a576791675628a014c0488c3d054371d4d63aRomain Guy for (int i = 0; i < count; i++) { 440f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy View child = getChildAt(i); 441f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (child.getVisibility() != GONE) { 442f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy LayoutParams params = (LayoutParams) child.getLayoutParams(); 443f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy final int[] rules = params.getRules(); 444f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (rules[CENTER_IN_PARENT] != 0 || rules[CENTER_HORIZONTAL] != 0) { 445f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy centerHorizontal(child, params, width); 44642460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy } else if (rules[ALIGN_PARENT_RIGHT] != 0) { 44742460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy final int childWidth = child.getMeasuredWidth(); 44842460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy params.mLeft = width - mPaddingRight - childWidth; 44942460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy params.mRight = params.mLeft + childWidth; 450f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 451f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 452f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 453f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 455f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 456f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (isWrapContentHeight) { 457a1f3e4aef19882b4b81075d9205bd363efe1e66dRomain Guy // Height already has top padding in it since it was calculated by looking at 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the bottom of each child view 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height += mPaddingBottom; 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mLayoutParams.height >= 0) { 4629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = Math.max(height, mLayoutParams.height); 4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = Math.max(height, getSuggestedMinimumHeight()); 4669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = resolveSize(height, heightMeasureSpec); 467f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 468f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (offsetVerticalAxis) { 469f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy for (int i = 0; i < count; i++) { 470f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy View child = getChildAt(i); 471f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (child.getVisibility() != GONE) { 472f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy LayoutParams params = (LayoutParams) child.getLayoutParams(); 473f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy final int[] rules = params.getRules(); 474f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (rules[CENTER_IN_PARENT] != 0 || rules[CENTER_VERTICAL] != 0) { 475f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy centerVertical(child, params, height); 47642460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy } else if (rules[ALIGN_PARENT_BOTTOM] != 0) { 47742460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy final int childHeight = child.getMeasuredHeight(); 47842460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy params.mTop = height - mPaddingBottom - childHeight; 47942460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy params.mBottom = params.mTop + childHeight; 480f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 481f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 482f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 483f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 4849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (horizontalGravity || verticalGravity) { 4879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selfBounds = mSelfBounds; 4889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selfBounds.set(mPaddingLeft, mPaddingTop, width - mPaddingRight, 4899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height - mPaddingBottom); 4909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect contentBounds = mContentBounds; 4929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Gravity.apply(mGravity, right - left, bottom - top, selfBounds, contentBounds); 4939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int horizontalOffset = contentBounds.left - left; 4959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int verticalOffset = contentBounds.top - top; 4969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (horizontalOffset != 0 || verticalOffset != 0) { 497725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 4989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 4999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() != GONE && child != ignore) { 5009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LayoutParams params = (LayoutParams) child.getLayoutParams(); 501d10a576791675628a014c0488c3d054371d4d63aRomain Guy if (horizontalGravity) { 502d10a576791675628a014c0488c3d054371d4d63aRomain Guy params.mLeft += horizontalOffset; 503d10a576791675628a014c0488c3d054371d4d63aRomain Guy params.mRight += horizontalOffset; 504d10a576791675628a014c0488c3d054371d4d63aRomain Guy } 505d10a576791675628a014c0488c3d054371d4d63aRomain Guy if (verticalGravity) { 506d10a576791675628a014c0488c3d054371d4d63aRomain Guy params.mTop += verticalOffset; 507d10a576791675628a014c0488c3d054371d4d63aRomain Guy params.mBottom += verticalOffset; 508d10a576791675628a014c0488c3d054371d4d63aRomain Guy } 5099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setMeasuredDimension(width, height); 5159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void alignBaseline(View child, LayoutParams params) { 5189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] rules = params.getRules(); 5199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int anchorBaseline = getRelatedViewBaseline(rules, ALIGN_BASELINE); 5209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorBaseline != -1) { 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LayoutParams anchorParams = getRelatedViewParams(rules, ALIGN_BASELINE); 5239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int offset = anchorParams.mTop + anchorBaseline; 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int baseline = child.getBaseline(); 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (baseline != -1) { 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offset -= baseline; 5289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = params.mBottom - params.mTop; 5309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mTop = offset; 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mBottom = params.mTop + height; 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mBaselineView == null) { 5369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mBaselineView = child; 5379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 5389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LayoutParams lp = (LayoutParams) mBaselineView.getLayoutParams(); 5399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (params.mTop < lp.mTop || (params.mTop == lp.mTop && params.mLeft < lp.mLeft)) { 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mBaselineView = child; 5419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Measure a child. The child should have left, top, right and bottom information 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * stored in its LayoutParams. If any of these values is -1 it means that the view 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * can extend up to the corresponding edge. 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param child Child to measure 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param params LayoutParams associated with child 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param myWidth Width of the the RelativeLayout 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param myHeight Height of the RelativeLayout 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 555725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private void measureChild(View child, LayoutParams params, int myWidth, int myHeight) { 5569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childWidthMeasureSpec = getChildMeasureSpec(params.mLeft, 5579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mRight, params.width, 5589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.leftMargin, params.rightMargin, 5599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPaddingLeft, mPaddingRight, 5609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project myWidth); 5619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childHeightMeasureSpec = getChildMeasureSpec(params.mTop, 5629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mBottom, params.height, 5639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.topMargin, params.bottomMargin, 5649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPaddingTop, mPaddingBottom, 5659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project myHeight); 5669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.measure(childWidthMeasureSpec, childHeightMeasureSpec); 5679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 569f782e60efc09f210643432f31b4c18026d7716d6Romain Guy private void measureChildHorizontal(View child, LayoutParams params, int myWidth, int myHeight) { 570956070383945db5f842ec05e507fd0233705738cRomain Guy int childWidthMeasureSpec = getChildMeasureSpec(params.mLeft, 571956070383945db5f842ec05e507fd0233705738cRomain Guy params.mRight, params.width, 572956070383945db5f842ec05e507fd0233705738cRomain Guy params.leftMargin, params.rightMargin, 573956070383945db5f842ec05e507fd0233705738cRomain Guy mPaddingLeft, mPaddingRight, 574956070383945db5f842ec05e507fd0233705738cRomain Guy myWidth); 575f782e60efc09f210643432f31b4c18026d7716d6Romain Guy int childHeightMeasureSpec; 576980a938c1c9a6a5791a8240e5a1e6638ab28dc77Romain Guy if (params.width == LayoutParams.MATCH_PARENT) { 577baac46339da03aed166e8a4240ad063caad019adRomain Guy childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(myHeight, MeasureSpec.EXACTLY); 578f782e60efc09f210643432f31b4c18026d7716d6Romain Guy } else { 579baac46339da03aed166e8a4240ad063caad019adRomain Guy childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(myHeight, MeasureSpec.AT_MOST); 580f782e60efc09f210643432f31b4c18026d7716d6Romain Guy } 581725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy child.measure(childWidthMeasureSpec, childHeightMeasureSpec); 582725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 583725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 5849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a measure spec that accounts for all of the constraints on this view. 5869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This includes size contstraints imposed by the RelativeLayout as well as 5879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the View's desired dimension. 5889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childStart The left or top field of the child's layout params 5909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childEnd The right or bottom field of the child's layout params 5919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childSize The child's desired size (the width or height field of 5929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the child's layout params) 5939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param startMargin The left or top margin 5949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param endMargin The right or bottom margin 5959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param startPadding mPaddingLeft or mPaddingTop 5969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param endPadding mPaddingRight or mPaddingBottom 5979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mySize The width or height of this view (the RelativeLayout) 5989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return MeasureSpec for the child 5999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int getChildMeasureSpec(int childStart, int childEnd, 6019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childSize, int startMargin, int endMargin, int startPadding, 6029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int endPadding, int mySize) { 6039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childSpecMode = 0; 6049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childSpecSize = 0; 6059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Figure out start and end bounds. 6079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int tempStart = childStart; 6089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int tempEnd = childEnd; 6099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the view did not express a layout constraint for an edge, use 6119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // view's margins and our padding 6129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (tempStart < 0) { 6139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project tempStart = startPadding + startMargin; 6149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (tempEnd < 0) { 6169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project tempEnd = mySize - endPadding - endMargin; 6179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Figure out maximum size available to this view 6209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int maxAvailable = tempEnd - tempStart; 6219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childStart >= 0 && childEnd >= 0) { 6239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Constraints fixed both edges, so child must be an exact size 6249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecMode = MeasureSpec.EXACTLY; 6259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecSize = maxAvailable; 6269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 6279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childSize >= 0) { 6289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Child wanted an exact size. Give as much as possible 6299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecMode = MeasureSpec.EXACTLY; 6309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (maxAvailable >= 0) { 6329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We have a maxmum size in this dimension. 6339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecSize = Math.min(maxAvailable, childSize); 6349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 6359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We can grow in this dimension. 6369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecSize = childSize; 6379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 638980a938c1c9a6a5791a8240e5a1e6638ab28dc77Romain Guy } else if (childSize == LayoutParams.MATCH_PARENT) { 6399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Child wanted to be as big as possible. Give all availble 6409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // space 6419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecMode = MeasureSpec.EXACTLY; 6429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecSize = maxAvailable; 6439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childSize == LayoutParams.WRAP_CONTENT) { 6449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Child wants to wrap content. Use AT_MOST 6459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to communicate available space if we know 6469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // our max size 6479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (maxAvailable >= 0) { 6489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We have a maxmum size in this dimension. 6499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecMode = MeasureSpec.AT_MOST; 6509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecSize = maxAvailable; 6519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 6529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We can grow in this dimension. Child can be as big as it 6539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // wants 6549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecMode = MeasureSpec.UNSPECIFIED; 6559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecSize = 0; 6569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return MeasureSpec.makeMeasureSpec(childSpecSize, childSpecMode); 6619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 663f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy private boolean positionChildHorizontal(View child, LayoutParams params, int myWidth, 664f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy boolean wrapContent) { 665f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 6669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] rules = params.getRules(); 6679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (params.mLeft < 0 && params.mRight >= 0) { 6699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Right is fixed, but left varies 6709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mLeft = params.mRight - child.getMeasuredWidth(); 6719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (params.mLeft >= 0 && params.mRight < 0) { 6729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Left is fixed, but right varies 6739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mRight = params.mLeft + child.getMeasuredWidth(); 6749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (params.mLeft < 0 && params.mRight < 0) { 6759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Both left and right vary 676f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (rules[CENTER_IN_PARENT] != 0 || rules[CENTER_HORIZONTAL] != 0) { 677f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (!wrapContent) { 678f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy centerHorizontal(child, params, myWidth); 679f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } else { 680f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy params.mLeft = mPaddingLeft + params.leftMargin; 681f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy params.mRight = params.mLeft + child.getMeasuredWidth(); 682f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 683f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy return true; 6849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 6859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mLeft = mPaddingLeft + params.leftMargin; 6869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mRight = params.mLeft + child.getMeasuredWidth(); 6879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 68942460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy return rules[ALIGN_PARENT_RIGHT] != 0; 690725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 691725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 692f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy private boolean positionChildVertical(View child, LayoutParams params, int myHeight, 693f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy boolean wrapContent) { 694f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 695725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy int[] rules = params.getRules(); 6969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (params.mTop < 0 && params.mBottom >= 0) { 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Bottom is fixed, but top varies 6999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mTop = params.mBottom - child.getMeasuredHeight(); 7009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (params.mTop >= 0 && params.mBottom < 0) { 7019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Top is fixed, but bottom varies 7029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mBottom = params.mTop + child.getMeasuredHeight(); 7039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (params.mTop < 0 && params.mBottom < 0) { 7049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Both top and bottom vary 705f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (rules[CENTER_IN_PARENT] != 0 || rules[CENTER_VERTICAL] != 0) { 706f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (!wrapContent) { 707f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy centerVertical(child, params, myHeight); 708f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } else { 709f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy params.mTop = mPaddingTop + params.topMargin; 710f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy params.mBottom = params.mTop + child.getMeasuredHeight(); 711f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 712f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy return true; 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mTop = mPaddingTop + params.topMargin; 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mBottom = params.mTop + child.getMeasuredHeight(); 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 71842460ac1bb5512a17a6891f7d99e2b45db0889d8Romain Guy return rules[ALIGN_PARENT_BOTTOM] != 0; 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 721725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private void applyHorizontalSizeRules(LayoutParams childParams, int myWidth) { 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] rules = childParams.getRules(); 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RelativeLayout.LayoutParams anchorParams; 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // -1 indicated a "soft requirement" in that direction. For example: 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The 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 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The 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 7289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // left=10, right=20 means the left and right ends are both fixed 7299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mLeft = -1; 7309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mRight = -1; 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, LEFT_OF); 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mRight = anchorParams.mLeft - (anchorParams.leftMargin + 7359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.rightMargin); 7369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[LEFT_OF] != 0) { 7379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (myWidth >= 0) { 7389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mRight = myWidth - mPaddingRight - childParams.rightMargin; 7399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 7409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME uh oh... 7419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, RIGHT_OF); 7459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 7469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mLeft = anchorParams.mRight + (anchorParams.rightMargin + 7479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.leftMargin); 7489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[RIGHT_OF] != 0) { 7499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mLeft = mPaddingLeft + childParams.leftMargin; 7509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, ALIGN_LEFT); 7539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 7549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mLeft = anchorParams.mLeft + childParams.leftMargin; 7559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[ALIGN_LEFT] != 0) { 7569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mLeft = mPaddingLeft + childParams.leftMargin; 7579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, ALIGN_RIGHT); 7609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 7619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mRight = anchorParams.mRight - childParams.rightMargin; 7629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[ALIGN_RIGHT] != 0) { 7639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (myWidth >= 0) { 7649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mRight = myWidth - mPaddingRight - childParams.rightMargin; 7659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 7669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME uh oh... 7679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (0 != rules[ALIGN_PARENT_LEFT]) { 7719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mLeft = mPaddingLeft + childParams.leftMargin; 7729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (0 != rules[ALIGN_PARENT_RIGHT]) { 7759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (myWidth >= 0) { 7769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mRight = myWidth - mPaddingRight - childParams.rightMargin; 7779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 7789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME uh oh... 7799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 781725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 782725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 783725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private void applyVerticalSizeRules(LayoutParams childParams, int myHeight) { 784725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy int[] rules = childParams.getRules(); 785725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy RelativeLayout.LayoutParams anchorParams; 7869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mTop = -1; 7889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mBottom = -1; 7899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, ABOVE); 7919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 7929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mBottom = anchorParams.mTop - (anchorParams.topMargin + 7939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.bottomMargin); 7949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[ABOVE] != 0) { 7959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (myHeight >= 0) { 7969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mBottom = myHeight - mPaddingBottom - childParams.bottomMargin; 7979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 7989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME uh oh... 7999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, BELOW); 8039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 8049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mTop = anchorParams.mBottom + (anchorParams.bottomMargin + 8059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.topMargin); 8069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[BELOW] != 0) { 8079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mTop = mPaddingTop + childParams.topMargin; 8089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, ALIGN_TOP); 8119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 8129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mTop = anchorParams.mTop + childParams.topMargin; 8139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[ALIGN_TOP] != 0) { 8149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mTop = mPaddingTop + childParams.topMargin; 8159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, ALIGN_BOTTOM); 8189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 8199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mBottom = anchorParams.mBottom - childParams.bottomMargin; 8209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[ALIGN_BOTTOM] != 0) { 8219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (myHeight >= 0) { 8229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mBottom = myHeight - mPaddingBottom - childParams.bottomMargin; 8239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 8249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME uh oh... 8259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (0 != rules[ALIGN_PARENT_TOP]) { 8299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mTop = mPaddingTop + childParams.topMargin; 8309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (0 != rules[ALIGN_PARENT_BOTTOM]) { 8339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (myHeight >= 0) { 8349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mBottom = myHeight - mPaddingBottom - childParams.bottomMargin; 8359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 8369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME uh oh... 8379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (rules[ALIGN_BASELINE] != 0) { 8419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mHasBaselineAlignedChild = true; 8429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View getRelatedView(int[] rules, int relation) { 8469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int id = rules[relation]; 8479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (id != 0) { 8481ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy DependencyGraph.Node node = mGraph.mKeyNodes.get(id); 849a0fd1d742d8edaf6c7e79bdd16a9b0c44fda4503Romain Guy if (node == null) return null; 850a0fd1d742d8edaf6c7e79bdd16a9b0c44fda4503Romain Guy View v = node.view; 8519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Find the first non-GONE view up the chain 8539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while (v.getVisibility() == View.GONE) { 8549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules = ((LayoutParams) v.getLayoutParams()).getRules(); 8551ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy node = mGraph.mKeyNodes.get((rules[relation])); 856a0fd1d742d8edaf6c7e79bdd16a9b0c44fda4503Romain Guy if (node == null) return null; 857a0fd1d742d8edaf6c7e79bdd16a9b0c44fda4503Romain Guy v = node.view; 8589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return v; 8619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 8649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private LayoutParams getRelatedViewParams(int[] rules, int relation) { 8679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getRelatedView(rules, relation); 8689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) { 8699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewGroup.LayoutParams params = v.getLayoutParams(); 8709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (params instanceof LayoutParams) { 8719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (LayoutParams) v.getLayoutParams(); 8729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 8759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int getRelatedViewBaseline(int[] rules, int relation) { 8789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getRelatedView(rules, relation); 8799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) { 8809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return v.getBaseline(); 8819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return -1; 8839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void centerHorizontal(View child, LayoutParams params, int myWidth) { 8869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childWidth = child.getMeasuredWidth(); 8879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int left = (myWidth - childWidth) / 2; 8889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mLeft = left; 8909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mRight = left + childWidth; 8919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void centerVertical(View child, LayoutParams params, int myHeight) { 8949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childHeight = child.getMeasuredHeight(); 8959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int top = (myHeight - childHeight) / 2; 8969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mTop = top; 8989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mBottom = top + childHeight; 8999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 9029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 9039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The layout has actually already been performed and the positions 9049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // cached. Apply the cached values to the children. 9059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 9069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 9089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 9099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() != GONE) { 9109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RelativeLayout.LayoutParams st = 9119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (RelativeLayout.LayoutParams) child.getLayoutParams(); 9129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.layout(st.mLeft, st.mTop, st.mRight, st.mBottom); 9139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 9199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams generateLayoutParams(AttributeSet attrs) { 9209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new RelativeLayout.LayoutParams(getContext(), attrs); 9219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns a set of layout parameters with a width of 9259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup.LayoutParams#WRAP_CONTENT}, 9269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * a height of {@link android.view.ViewGroup.LayoutParams#WRAP_CONTENT} and no spanning. 9279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 9299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateDefaultLayoutParams() { 9309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT); 9319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Override to allow type-checking of LayoutParams. 9349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 9359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 9369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof RelativeLayout.LayoutParams; 9379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 9409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 9419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(p); 9429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 94475986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov @Override 94575986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) { 94675986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov if (mTopToBottomLeftToRightSet == null) { 94775986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov mTopToBottomLeftToRightSet = new TreeSet<View>(new TopToBottomLeftToRightComparator()); 94875986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 94975986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov 95075986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov // sort children top-to-bottom and left-to-right 95175986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov for (int i = 0, count = getChildCount(); i < count; i++) { 95275986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov mTopToBottomLeftToRightSet.add(getChildAt(i)); 95375986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 95475986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov 95575986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov for (View view : mTopToBottomLeftToRightSet) { 95675986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov if (view.dispatchPopulateAccessibilityEvent(event)) { 95775986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov mTopToBottomLeftToRightSet.clear(); 95875986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov return true; 95975986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 96075986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 96175986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov 96275986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov mTopToBottomLeftToRightSet.clear(); 96375986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov return false; 96475986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 96575986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov 96675986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov /** 96775986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov * Compares two views in left-to-right and top-to-bottom fashion. 96875986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov */ 96975986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov private class TopToBottomLeftToRightComparator implements Comparator<View> { 97075986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov public int compare(View first, View second) { 97175986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov // top - bottom 97275986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov int topDifference = first.getTop() - second.getTop(); 97375986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov if (topDifference != 0) { 97475986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov return topDifference; 97575986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 97675986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov // left - right 97775986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov int leftDifference = first.getLeft() - second.getLeft(); 97875986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov if (leftDifference != 0) { 97975986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov return leftDifference; 98075986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 98175986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov // break tie by height 98275986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov int heightDiference = first.getHeight() - second.getHeight(); 98375986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov if (heightDiference != 0) { 98475986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov return heightDiference; 98575986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 98675986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov // break tie by width 98775986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov int widthDiference = first.getWidth() - second.getWidth(); 98875986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov if (widthDiference != 0) { 98975986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov return widthDiference; 99075986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 99175986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov return 0; 99275986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 99375986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 99475986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov 9959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Per-child layout information associated with RelativeLayout. 9979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 9989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignWithParentIfMissing 9999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_toLeftOf 10009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_toRightOf 10019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_above 10029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_below 10039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignBaseline 10049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignLeft 10059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignTop 10069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignRight 10079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignBottom 10089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignParentLeft 10099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignParentTop 10109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignParentRight 10119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignParentBottom 10129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_centerInParent 10139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_centerHorizontal 10149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_centerVertical 10159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class LayoutParams extends ViewGroup.MarginLayoutParams { 1017bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "layout", resolveId = true, indexMapping = { 1018c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ABOVE, to = "above"), 1019c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_BASELINE, to = "alignBaseline"), 1020c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_BOTTOM, to = "alignBottom"), 1021c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_LEFT, to = "alignLeft"), 1022c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_PARENT_BOTTOM, to = "alignParentBottom"), 1023c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_PARENT_LEFT, to = "alignParentLeft"), 1024c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_PARENT_RIGHT, to = "alignParentRight"), 1025c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_PARENT_TOP, to = "alignParentTop"), 1026c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_RIGHT, to = "alignRight"), 1027c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_TOP, to = "alignTop"), 1028c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = BELOW, to = "below"), 1029c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = CENTER_HORIZONTAL, to = "centerHorizontal"), 1030c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = CENTER_IN_PARENT, to = "center"), 1031c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = CENTER_VERTICAL, to = "centerVertical"), 1032c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = LEFT_OF, to = "leftOf"), 1033c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = RIGHT_OF, to = "rightOf") 1034105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project }, mapping = { 1035105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project @ViewDebug.IntToString(from = TRUE, to = "true"), 1036a1f3e4aef19882b4b81075d9205bd363efe1e66dRomain Guy @ViewDebug.IntToString(from = 0, to = "false/NO_ID") 1037105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project }) 10389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int[] mRules = new int[VERB_COUNT]; 1039c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project 10409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLeft, mTop, mRight, mBottom; 10419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When true, uses the parent as the anchor if the anchor doesn't exist or if 10449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the anchor's visibility is GONE. 10459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1046bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "layout") 10479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean alignWithParent; 10489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(Context c, AttributeSet attrs) { 10509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(c, attrs); 10519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = c.obtainStyledAttributes(attrs, 10539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.RelativeLayout_Layout); 10549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] rules = mRules; 10569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int N = a.getIndexCount(); 10589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < N; i++) { 10599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int attr = a.getIndex(i); 10609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (attr) { 10619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignWithParentIfMissing: 10629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project alignWithParent = a.getBoolean(attr, false); 10639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 10649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_toLeftOf: 10659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[LEFT_OF] = a.getResourceId(attr, 0); 10669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 10679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_toRightOf: 10689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[RIGHT_OF] = a.getResourceId(attr, 0); 10699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 10709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_above: 10719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ABOVE] = a.getResourceId(attr, 0); 10729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 10739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_below: 10749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[BELOW] = a.getResourceId(attr, 0); 10759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 10769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignBaseline: 10779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_BASELINE] = a.getResourceId(attr, 0); 10789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 10799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignLeft: 10809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_LEFT] = a.getResourceId(attr, 0); 10819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 10829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignTop: 10839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_TOP] = a.getResourceId(attr, 0); 10849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 10859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignRight: 10869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_RIGHT] = a.getResourceId(attr, 0); 10879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 10889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignBottom: 10899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_BOTTOM] = a.getResourceId(attr, 0); 10909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 10919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignParentLeft: 10929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_PARENT_LEFT] = a.getBoolean(attr, false) ? TRUE : 0; 10939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 10949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignParentTop: 10959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_PARENT_TOP] = a.getBoolean(attr, false) ? TRUE : 0; 10969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 10979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignParentRight: 10989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_PARENT_RIGHT] = a.getBoolean(attr, false) ? TRUE : 0; 10999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 11009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignParentBottom: 11019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_PARENT_BOTTOM] = a.getBoolean(attr, false) ? TRUE : 0; 11029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 11039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_centerInParent: 11049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[CENTER_IN_PARENT] = a.getBoolean(attr, false) ? TRUE : 0; 11059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 11069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_centerHorizontal: 11079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[CENTER_HORIZONTAL] = a.getBoolean(attr, false) ? TRUE : 0; 11089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 11099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_centerVertical: 11109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[CENTER_VERTICAL] = a.getBoolean(attr, false) ? TRUE : 0; 11119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 11129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 11169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h) { 11199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 11209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 11249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams source) { 11269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 11279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 11319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.MarginLayoutParams source) { 11339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 11349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 11379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String debug(String output) { 11389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return output + "ViewGroup.LayoutParams={ width=" + sizeToString(width) + 11399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ", height=" + sizeToString(height) + " }"; 11409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Adds a layout rule to be interpreted by the RelativeLayout. This 11449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * method should only be used for constraints that don't refer to another sibling 11459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (e.g., CENTER_IN_PARENT) or take a boolean value ({@link RelativeLayout#TRUE} 11469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * for true or - for false). To specify a verb that takes a subject, use 11479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #addRule(int, int)} instead. 11489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param verb One of the verbs defined by 11509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.RelativeLayout RelativeLayout}, such as 11519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * ALIGN_WITH_PARENT_LEFT. 11529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #addRule(int, int) 11539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addRule(int verb) { 11559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRules[verb] = TRUE; 11569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Adds a layout rule to be interpreted by the RelativeLayout. Use this for 11609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * verbs that take a target, such as a sibling (ALIGN_RIGHT) or a boolean 11619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * value (VISIBLE). 11629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param verb One of the verbs defined by 11649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.RelativeLayout RelativeLayout}, such as 11659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * ALIGN_WITH_PARENT_LEFT. 11669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param anchor The id of another view to use as an anchor, 11679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * or a boolean value(represented as {@link RelativeLayout#TRUE}) 11689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * for true or 0 for false). For verbs that don't refer to another sibling 11699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (for example, ALIGN_WITH_PARENT_BOTTOM) just use -1. 11709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #addRule(int) 11719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addRule(int verb, int anchor) { 11739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRules[verb] = anchor; 11749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Retrieves a complete list of all supported rules, where the index is the rule 11789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * verb, and the element value is the value specified, or "false" if it was never 11799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * set. 11809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the supported rules 11829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #addRule(int, int) 11839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int[] getRules() { 11859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mRules; 11869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1188725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1189725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private static class DependencyGraph { 1190725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 11911ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy * List of all views in the graph. 11921ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy */ 11931ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy private ArrayList<Node> mNodes = new ArrayList<Node>(); 11941ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy 11951ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy /** 1196725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * List of nodes in the graph. Each node is identified by its 1197725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * view id (see View#getId()). 1198725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 11991ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy private SparseArray<Node> mKeyNodes = new SparseArray<Node>(); 1200725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1201725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1202725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * Temporary data structure used to build the list of roots 1203725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * for this graph. 1204725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1205725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private LinkedList<Node> mRoots = new LinkedList<Node>(); 1206725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1207725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1208725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * Clears the graph. 1209725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1210725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy void clear() { 12111ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final ArrayList<Node> nodes = mNodes; 1212725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final int count = nodes.size(); 1213725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1214725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 12151ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy nodes.get(i).release(); 1216725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1217725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy nodes.clear(); 1218725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 12191ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy mKeyNodes.clear(); 1220725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy mRoots.clear(); 1221725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1222725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1223725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1224725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * Adds a view to the graph. 1225725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * 1226725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * @param view The view to be added as a node to the graph. 1227725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1228725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy void add(View view) { 12291ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final int id = view.getId(); 12301ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final Node node = Node.acquire(view); 12311ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy 12321ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy if (id != View.NO_ID) { 12331ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy mKeyNodes.put(id, node); 12341ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy } 12351ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy 12361ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy mNodes.add(node); 1237725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1238725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1239725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1240725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * Builds a sorted list of views. The sorting order depends on the dependencies 1241725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * between the view. For instance, if view C needs view A to be processed first 1242725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * and view A needs view B to be processed first, the dependency graph 1243725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * is: B -> A -> C. The sorted array will contain views B, A and C in this order. 1244725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * 1245725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * @param sorted The sorted list of views. The length of this array must 1246725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * be equal to getChildCount(). 1247725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * @param rules The list of rules to take into account. 1248725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1249725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy void getSortedViews(View[] sorted, int... rules) { 1250725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final LinkedList<Node> roots = findRoots(rules); 1251725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy int index = 0; 1252725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1253725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy while (roots.size() > 0) { 1254725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final Node node = roots.removeFirst(); 1255725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final View view = node.view; 1256725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final int key = view.getId(); 1257725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1258725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy sorted[index++] = view; 1259725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1260725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final HashSet<Node> dependents = node.dependents; 1261725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (Node dependent : dependents) { 1262725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final SparseArray<Node> dependencies = dependent.dependencies; 1263725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1264725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy dependencies.remove(key); 1265725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (dependencies.size() == 0) { 1266725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy roots.add(dependent); 1267725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1268725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1269725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1270725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1271725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (index < sorted.length) { 1272725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy throw new IllegalStateException("Circular dependencies cannot exist" 1273725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy + " in RelativeLayout"); 1274725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1275725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1276725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1277725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1278725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * Finds the roots of the graph. A root is a node with no dependency and 1279725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * with [0..n] dependents. 1280725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * 1281725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * @param rulesFilter The list of rules to consider when building the 1282725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * dependencies 1283725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * 1284725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * @return A list of node, each being a root of the graph 1285725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1286725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private LinkedList<Node> findRoots(int[] rulesFilter) { 12871ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final SparseArray<Node> keyNodes = mKeyNodes; 12881ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final ArrayList<Node> nodes = mNodes; 1289725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final int count = nodes.size(); 1290725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1291725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // Find roots can be invoked several times, so make sure to clear 1292725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // all dependents and dependencies before running the algorithm 1293725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 12941ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final Node node = nodes.get(i); 1295725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy node.dependents.clear(); 1296725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy node.dependencies.clear(); 1297725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1298725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1299725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // Builds up the dependents and dependencies for each node of the graph 1300725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 13011ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final Node node = nodes.get(i); 1302725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1303725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final LayoutParams layoutParams = (LayoutParams) node.view.getLayoutParams(); 1304725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final int[] rules = layoutParams.mRules; 1305725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final int rulesCount = rulesFilter.length; 1306725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1307725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // Look only the the rules passed in parameter, this way we build only the 1308725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // dependencies for a specific set of rules 1309725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int j = 0; j < rulesCount; j++) { 1310725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final int rule = rules[rulesFilter[j]]; 1311725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (rule > 0) { 1312725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // The node this node depends on 13131ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final Node dependency = keyNodes.get(rule); 1314da3003e1d71d66a1c936489025f8db314a2a4588Romain Guy // Skip unknowns and self dependencies 1315da3003e1d71d66a1c936489025f8db314a2a4588Romain Guy if (dependency == null || dependency == node) { 1316b8f8de85160b0a072158b45320e9fc2adba545f5Romain Guy continue; 1317b8f8de85160b0a072158b45320e9fc2adba545f5Romain Guy } 1318725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // Add the current node as a dependent 1319725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy dependency.dependents.add(node); 1320725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // Add a dependency to the current node 1321725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy node.dependencies.put(rule, dependency); 1322725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1323725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1324725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1325725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1326725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final LinkedList<Node> roots = mRoots; 1327725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy roots.clear(); 1328725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1329725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // Finds all the roots in the graph: all nodes with no dependencies 1330725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 13311ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final Node node = nodes.get(i); 1332725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (node.dependencies.size() == 0) roots.add(node); 1333725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1334725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1335725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy return roots; 1336725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1337725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1338725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1339725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * Prints the dependency graph for the specified rules. 1340725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * 1341725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * @param resources The context's resources to print the ids. 1342725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * @param rules The list of rules to take into account. 1343725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1344725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy void log(Resources resources, int... rules) { 1345725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final LinkedList<Node> roots = findRoots(rules); 1346725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (Node node : roots) { 1347725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy printNode(resources, node); 1348725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1349725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1350725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 13519fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy static void printViewId(Resources resources, View view) { 1352725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (view.getId() != View.NO_ID) { 1353725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy d(LOG_TAG, resources.getResourceEntryName(view.getId())); 1354725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } else { 1355725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy d(LOG_TAG, "NO_ID"); 1356725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1357725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1358725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1359725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private static void appendViewId(Resources resources, Node node, StringBuilder buffer) { 1360725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (node.view.getId() != View.NO_ID) { 1361725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy buffer.append(resources.getResourceEntryName(node.view.getId())); 1362725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } else { 1363725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy buffer.append("NO_ID"); 1364725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1365725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1366725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1367725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private static void printNode(Resources resources, Node node) { 1368725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (node.dependents.size() == 0) { 1369725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy printViewId(resources, node.view); 1370725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } else { 1371725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (Node dependent : node.dependents) { 1372725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy StringBuilder buffer = new StringBuilder(); 1373725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy appendViewId(resources, node, buffer); 1374725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy printdependents(resources, dependent, buffer); 1375725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1376725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1377725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1378725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1379725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private static void printdependents(Resources resources, Node node, StringBuilder buffer) { 1380725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy buffer.append(" -> "); 1381725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy appendViewId(resources, node, buffer); 1382725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1383725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (node.dependents.size() == 0) { 1384725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy d(LOG_TAG, buffer.toString()); 1385725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } else { 1386725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (Node dependent : node.dependents) { 1387725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy StringBuilder subBuffer = new StringBuilder(buffer); 1388725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy printdependents(resources, dependent, subBuffer); 1389725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1390725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1391725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1392725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1393725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1394725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * A node in the dependency graph. A node is a view, its list of dependencies 1395725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * and its list of dependents. 1396725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * 1397725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * A node with no dependent is considered a root of the graph. 1398725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1399725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy static class Node implements Poolable<Node> { 1400725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1401725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * The view representing this node in the layout. 1402725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1403725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy View view; 1404725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1405725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1406725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * The list of dependents for this node; a dependent is a node 1407725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * that needs this node to be processed first. 1408725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1409725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final HashSet<Node> dependents = new HashSet<Node>(); 1410725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1411725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1412725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * The list of dependencies for this node. 1413725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1414725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final SparseArray<Node> dependencies = new SparseArray<Node>(); 1415725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1416725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /* 1417725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * START POOL IMPLEMENTATION 1418725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1419baac46339da03aed166e8a4240ad063caad019adRomain Guy // The pool is static, so all nodes instances are shared across 1420baac46339da03aed166e8a4240ad063caad019adRomain Guy // activities, that's why we give it a rather high limit 1421baac46339da03aed166e8a4240ad063caad019adRomain Guy private static final int POOL_LIMIT = 100; 1422725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private static final Pool<Node> sPool = Pools.synchronizedPool( 1423725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy Pools.finitePool(new PoolableManager<Node>() { 1424725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy public Node newInstance() { 1425725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy return new Node(); 1426725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1427725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1428725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy public void onAcquired(Node element) { 1429725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1430725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1431725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy public void onReleased(Node element) { 1432725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1433725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy }, POOL_LIMIT) 1434725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy ); 1435725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1436725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private Node mNext; 1437725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1438725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy public void setNextPoolable(Node element) { 1439725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy mNext = element; 1440725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1441725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1442725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy public Node getNextPoolable() { 1443725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy return mNext; 1444725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1445725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1446725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy static Node acquire(View view) { 1447725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final Node node = sPool.acquire(); 1448725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy node.view = view; 1449725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1450725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy return node; 1451725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1452725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1453725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy void release() { 1454725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy view = null; 1455725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy dependents.clear(); 1456725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy dependencies.clear(); 1457725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1458725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy sPool.release(this); 1459725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1460725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /* 1461725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * END POOL IMPLEMENTATION 1462725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1463725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1464725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 14659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1466