RelativeLayout.java revision d10a576791675628a014c0488c3d054371d4d63a
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 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * parent. For the sake of efficiency, the relations between views are evaluated in one pass, so if 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view Y is dependent on the position of view X, make sure the view X comes first in the layout. 50a1f3e4aef19882b4b81075d9205bd363efe1e66dRomain Guy * 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p> 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that you cannot have a circular dependency between the size of the RelativeLayout and the 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position of its children. For example, you cannot have a RelativeLayout whose height is set to 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup.LayoutParams#WRAP_CONTENT WRAP_CONTENT} and a child set to 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #ALIGN_PARENT_BOTTOM}. 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * </p> 57a1f3e4aef19882b4b81075d9205bd363efe1e66dRomain Guy * 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p> 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Also see {@link android.widget.RelativeLayout.LayoutParams RelativeLayout.LayoutParams} for 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout attributes 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * </p> 62a1f3e4aef19882b4b81075d9205bd363efe1e66dRomain Guy * 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_gravity 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_ignoreGravity 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project@RemoteView 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic class RelativeLayout extends ViewGroup { 68725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private static final String LOG_TAG = "RelativeLayout"; 69725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 70725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private static final boolean DEBUG_GRAPH = false; 71725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRUE = -1; 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's right edge with another child's left edge. 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int LEFT_OF = 0; 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's left edge with another child's right edge. 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int RIGHT_OF = 1; 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's bottom edge with another child's top edge. 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ABOVE = 2; 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's top edge with another child's bottom edge. 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int BELOW = 3; 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's baseline with another child's baseline. 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_BASELINE = 4; 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's left edge with another child's left edge. 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_LEFT = 5; 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's top edge with another child's top edge. 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_TOP = 6; 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's right edge with another child's right edge. 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_RIGHT = 7; 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's bottom edge with another child's bottom edge. 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_BOTTOM = 8; 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns the child's left edge with its RelativeLayout 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * parent's left edge. 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_PARENT_LEFT = 9; 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns the child's top edge with its RelativeLayout 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * parent's top edge. 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_PARENT_TOP = 10; 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns the child's right edge with its RelativeLayout 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * parent's right edge. 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_PARENT_RIGHT = 11; 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns the child's bottom edge with its RelativeLayout 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * parent's bottom edge. 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_PARENT_BOTTOM = 12; 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that centers the child with respect to the bounds of its 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * RelativeLayout parent. 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int CENTER_IN_PARENT = 13; 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that centers the child horizontally with respect to the 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bounds of its RelativeLayout parent. 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int CENTER_HORIZONTAL = 14; 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that centers the child vertically with respect to the 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bounds of its RelativeLayout parent. 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int CENTER_VERTICAL = 15; 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int VERB_COUNT = 16; 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View mBaselineView = null; 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mHasBaselineAlignedChild; 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mGravity = Gravity.LEFT | Gravity.TOP; 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final Rect mContentBounds = new Rect(); 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final Rect mSelfBounds = new Rect(); 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mIgnoreGravity; 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 159725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private SortedSet<View> mTopToBottomLeftToRightSet = null; 160725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 161725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private boolean mDirtyHierarchy; 162725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private View[] mSortedHorizontalChildren = new View[0]; 163725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private View[] mSortedVerticalChildren = new View[0]; 164725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private final DependencyGraph mGraph = new DependencyGraph(); 16575986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public RelativeLayout(Context context) { 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context); 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public RelativeLayout(Context context, AttributeSet attrs) { 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, attrs); 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initFromAttributes(context, attrs); 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public RelativeLayout(Context context, AttributeSet attrs, int defStyle) { 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, attrs, defStyle); 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initFromAttributes(context, attrs); 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void initFromAttributes(Context context, AttributeSet attrs) { 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.RelativeLayout); 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIgnoreGravity = a.getResourceId(R.styleable.RelativeLayout_ignoreGravity, View.NO_ID); 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGravity = a.getInt(R.styleable.RelativeLayout_gravity, mGravity); 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines which View is ignored when the gravity is applied. This setting has no 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * effect if the gravity is <code>Gravity.LEFT | Gravity.TOP</code>. 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param viewId The id of the View to be ignored by gravity, or 0 if no View 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * should be ignored. 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setGravity(int) 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_ignoreGravity 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @android.view.RemotableViewMethod 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setIgnoreGravity(int viewId) { 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIgnoreGravity = viewId; 2019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Describes how the child views are positioned. Defaults to 2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <code>Gravity.LEFT | Gravity.TOP</code>. 2069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param gravity See {@link android.view.Gravity} 2089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setHorizontalGravity(int) 2109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setVerticalGravity(int) 2119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_gravity 2139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @android.view.RemotableViewMethod 2159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setGravity(int gravity) { 2169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mGravity != gravity) { 2179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((gravity & Gravity.HORIZONTAL_GRAVITY_MASK) == 0) { 2189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project gravity |= Gravity.LEFT; 2199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((gravity & Gravity.VERTICAL_GRAVITY_MASK) == 0) { 2229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project gravity |= Gravity.TOP; 2239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGravity = gravity; 2269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 2279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @android.view.RemotableViewMethod 2319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setHorizontalGravity(int horizontalGravity) { 2329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int gravity = horizontalGravity & Gravity.HORIZONTAL_GRAVITY_MASK; 2339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) != gravity) { 2349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGravity = (mGravity & ~Gravity.HORIZONTAL_GRAVITY_MASK) | gravity; 2359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 2369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @android.view.RemotableViewMethod 2409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setVerticalGravity(int verticalGravity) { 2419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int gravity = verticalGravity & Gravity.VERTICAL_GRAVITY_MASK; 2429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != gravity) { 2439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGravity = (mGravity & ~Gravity.VERTICAL_GRAVITY_MASK) | gravity; 2449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 2459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getBaseline() { 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mBaselineView != null ? mBaselineView.getBaseline() : super.getBaseline(); 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 254725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy public void requestLayout() { 255725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy super.requestLayout(); 256725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy mDirtyHierarchy = true; 257725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 258725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 259725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private void sortChildren() { 260725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy int count = getChildCount(); 261725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (mSortedVerticalChildren.length != count) mSortedVerticalChildren = new View[count]; 262725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (mSortedHorizontalChildren.length != count) mSortedHorizontalChildren = new View[count]; 263725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 264725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final DependencyGraph graph = mGraph; 265725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy graph.clear(); 266725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 267725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 268725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final View child = getChildAt(i); 269725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy graph.add(child); 270725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 271725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 272725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (DEBUG_GRAPH) { 273725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy d(LOG_TAG, "=== Sorted vertical children"); 274725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy graph.log(getResources(), ABOVE, BELOW, ALIGN_BASELINE, ALIGN_TOP, ALIGN_BOTTOM); 275725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy d(LOG_TAG, "=== Sorted horizontal children"); 276725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy graph.log(getResources(), LEFT_OF, RIGHT_OF, ALIGN_LEFT, ALIGN_RIGHT); 277725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 278725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 279725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy graph.getSortedViews(mSortedVerticalChildren, ABOVE, BELOW, ALIGN_BASELINE, 280725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy ALIGN_TOP, ALIGN_BOTTOM); 281725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy graph.getSortedViews(mSortedHorizontalChildren, LEFT_OF, RIGHT_OF, ALIGN_LEFT, ALIGN_RIGHT); 2829fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy 2839fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy if (DEBUG_GRAPH) { 2849fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy d(LOG_TAG, "=== Ordered list of vertical children"); 2859fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy for (View view : mSortedVerticalChildren) { 2869fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy DependencyGraph.printViewId(getResources(), view); 2879fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy } 2889fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy d(LOG_TAG, "=== Ordered list of horizontal children"); 2899fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy for (View view : mSortedHorizontalChildren) { 2909fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy DependencyGraph.printViewId(getResources(), view); 2919fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy } 2929fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy } 293725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 294725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 295725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy @Override 2969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 297725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (mDirtyHierarchy) { 298725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy mDirtyHierarchy = false; 299725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy sortChildren(); 300725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 301725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int myWidth = -1; 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int myHeight = -1; 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int width = 0; 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = 0; 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int widthMode = MeasureSpec.getMode(widthMeasureSpec); 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int heightMode = MeasureSpec.getMode(heightMeasureSpec); 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int widthSize = MeasureSpec.getSize(widthMeasureSpec); 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int heightSize = MeasureSpec.getSize(heightMeasureSpec); 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Record our dimensions if they are known; 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (widthMode != MeasureSpec.UNSPECIFIED) { 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project myWidth = widthSize; 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (heightMode != MeasureSpec.UNSPECIFIED) { 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project myHeight = heightSize; 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (widthMode == MeasureSpec.EXACTLY) { 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project width = myWidth; 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (heightMode == MeasureSpec.EXACTLY) { 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = myHeight; 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mHasBaselineAlignedChild = false; 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View ignore = null; 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int gravity = mGravity & Gravity.HORIZONTAL_GRAVITY_MASK; 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean horizontalGravity = gravity != Gravity.LEFT && gravity != 0; 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean verticalGravity = gravity != Gravity.TOP && gravity != 0; 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int left = Integer.MAX_VALUE; 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int top = Integer.MAX_VALUE; 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int right = Integer.MIN_VALUE; 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int bottom = Integer.MIN_VALUE; 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 343f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy boolean offsetHorizontalAxis = false; 344f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy boolean offsetVerticalAxis = false; 345f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((horizontalGravity || verticalGravity) && mIgnoreGravity != View.NO_ID) { 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ignore = findViewById(mIgnoreGravity); 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 350f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy final boolean isWrapContentWidth = widthMode != MeasureSpec.EXACTLY; 351f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy final boolean isWrapContentHeight = heightMode != MeasureSpec.EXACTLY; 352f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 353e24ef6032f52cb754bfeb9ab32aae0a5cfa61f8aRomain Guy View[] views = mSortedHorizontalChildren; 354725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy int count = views.length; 355725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 356725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy View child = views[i]; 357725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (child.getVisibility() != GONE) { 358725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy LayoutParams params = (LayoutParams) child.getLayoutParams(); 359956070383945db5f842ec05e507fd0233705738cRomain Guy 360956070383945db5f842ec05e507fd0233705738cRomain Guy applyHorizontalSizeRules(params, myWidth); 361f782e60efc09f210643432f31b4c18026d7716d6Romain Guy measureChildHorizontal(child, params, myWidth, myHeight); 362f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (positionChildHorizontal(child, params, myWidth, isWrapContentWidth)) { 363f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy offsetHorizontalAxis = true; 364f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 365725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 366725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 367725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 368e24ef6032f52cb754bfeb9ab32aae0a5cfa61f8aRomain Guy views = mSortedVerticalChildren; 369725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy count = views.length; 370f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 371725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 372725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy View child = views[i]; 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() != GONE) { 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LayoutParams params = (LayoutParams) child.getLayoutParams(); 375956070383945db5f842ec05e507fd0233705738cRomain Guy 376956070383945db5f842ec05e507fd0233705738cRomain Guy applyVerticalSizeRules(params, myHeight); 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project measureChild(child, params, myWidth, myHeight); 378f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (positionChildVertical(child, params, myHeight, isWrapContentHeight)) { 379f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy offsetVerticalAxis = true; 380f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 382f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (isWrapContentWidth) { 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project width = Math.max(width, params.mRight); 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 385f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 386f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (isWrapContentHeight) { 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = Math.max(height, params.mBottom); 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != ignore || verticalGravity) { 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project left = Math.min(left, params.mLeft - params.leftMargin); 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project top = Math.min(top, params.mTop - params.topMargin); 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != ignore || horizontalGravity) { 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project right = Math.max(right, params.mRight + params.rightMargin); 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project bottom = Math.max(bottom, params.mBottom + params.bottomMargin); 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mHasBaselineAlignedChild) { 403725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() != GONE) { 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LayoutParams params = (LayoutParams) child.getLayoutParams(); 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project alignBaseline(child, params); 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != ignore || verticalGravity) { 410725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy left = Math.min(left, params.mLeft - params.leftMargin); 411725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy top = Math.min(top, params.mTop - params.topMargin); 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != ignore || horizontalGravity) { 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project right = Math.max(right, params.mRight + params.rightMargin); 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project bottom = Math.max(bottom, params.mBottom + params.bottomMargin); 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 422f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (isWrapContentWidth) { 423a1f3e4aef19882b4b81075d9205bd363efe1e66dRomain Guy // Width already has left padding in it since it was calculated by looking at 4249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the right of each child view 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project width += mPaddingRight; 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mLayoutParams.width >= 0) { 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project width = Math.max(width, mLayoutParams.width); 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project width = Math.max(width, getSuggestedMinimumWidth()); 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project width = resolveSize(width, widthMeasureSpec); 433f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 434f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (offsetHorizontalAxis) { 435d10a576791675628a014c0488c3d054371d4d63aRomain Guy for (int i = 0; i < count; i++) { 436f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy View child = getChildAt(i); 437f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (child.getVisibility() != GONE) { 438f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy LayoutParams params = (LayoutParams) child.getLayoutParams(); 439f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy final int[] rules = params.getRules(); 440f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (rules[CENTER_IN_PARENT] != 0 || rules[CENTER_HORIZONTAL] != 0) { 441f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy centerHorizontal(child, params, width); 442f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 443f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 444f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 445f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 447f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 448f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (isWrapContentHeight) { 449a1f3e4aef19882b4b81075d9205bd363efe1e66dRomain Guy // Height already has top padding in it since it was calculated by looking at 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the bottom of each child view 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height += mPaddingBottom; 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mLayoutParams.height >= 0) { 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = Math.max(height, mLayoutParams.height); 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = Math.max(height, getSuggestedMinimumHeight()); 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = resolveSize(height, heightMeasureSpec); 459f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 460f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (offsetVerticalAxis) { 461f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy for (int i = 0; i < count; i++) { 462f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy View child = getChildAt(i); 463f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (child.getVisibility() != GONE) { 464f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy LayoutParams params = (LayoutParams) child.getLayoutParams(); 465f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy final int[] rules = params.getRules(); 466f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (rules[CENTER_IN_PARENT] != 0 || rules[CENTER_VERTICAL] != 0) { 467f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy centerVertical(child, params, height); 468f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 469f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 470f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 471f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (horizontalGravity || verticalGravity) { 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selfBounds = mSelfBounds; 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selfBounds.set(mPaddingLeft, mPaddingTop, width - mPaddingRight, 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height - mPaddingBottom); 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect contentBounds = mContentBounds; 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Gravity.apply(mGravity, right - left, bottom - top, selfBounds, contentBounds); 4819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int horizontalOffset = contentBounds.left - left; 4839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int verticalOffset = contentBounds.top - top; 4849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (horizontalOffset != 0 || verticalOffset != 0) { 485725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 4869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 4879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() != GONE && child != ignore) { 4889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LayoutParams params = (LayoutParams) child.getLayoutParams(); 489d10a576791675628a014c0488c3d054371d4d63aRomain Guy if (horizontalGravity) { 490d10a576791675628a014c0488c3d054371d4d63aRomain Guy params.mLeft += horizontalOffset; 491d10a576791675628a014c0488c3d054371d4d63aRomain Guy params.mRight += horizontalOffset; 492d10a576791675628a014c0488c3d054371d4d63aRomain Guy } 493d10a576791675628a014c0488c3d054371d4d63aRomain Guy if (verticalGravity) { 494d10a576791675628a014c0488c3d054371d4d63aRomain Guy params.mTop += verticalOffset; 495d10a576791675628a014c0488c3d054371d4d63aRomain Guy params.mBottom += verticalOffset; 496d10a576791675628a014c0488c3d054371d4d63aRomain Guy } 4979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setMeasuredDimension(width, height); 5039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void alignBaseline(View child, LayoutParams params) { 5069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] rules = params.getRules(); 5079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int anchorBaseline = getRelatedViewBaseline(rules, ALIGN_BASELINE); 5089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorBaseline != -1) { 5109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LayoutParams anchorParams = getRelatedViewParams(rules, ALIGN_BASELINE); 5119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 5129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int offset = anchorParams.mTop + anchorBaseline; 5139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int baseline = child.getBaseline(); 5149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (baseline != -1) { 5159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offset -= baseline; 5169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = params.mBottom - params.mTop; 5189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mTop = offset; 5199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mBottom = params.mTop + height; 5209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mBaselineView == null) { 5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mBaselineView = child; 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LayoutParams lp = (LayoutParams) mBaselineView.getLayoutParams(); 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (params.mTop < lp.mTop || (params.mTop == lp.mTop && params.mLeft < lp.mLeft)) { 5289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mBaselineView = child; 5299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Measure a child. The child should have left, top, right and bottom information 5359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * stored in its LayoutParams. If any of these values is -1 it means that the view 5369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * can extend up to the corresponding edge. 5379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param child Child to measure 5399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param params LayoutParams associated with child 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param myWidth Width of the the RelativeLayout 5419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param myHeight Height of the RelativeLayout 5429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 543725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private void measureChild(View child, LayoutParams params, int myWidth, int myHeight) { 5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childWidthMeasureSpec = getChildMeasureSpec(params.mLeft, 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mRight, params.width, 5469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.leftMargin, params.rightMargin, 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPaddingLeft, mPaddingRight, 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project myWidth); 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childHeightMeasureSpec = getChildMeasureSpec(params.mTop, 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mBottom, params.height, 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.topMargin, params.bottomMargin, 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPaddingTop, mPaddingBottom, 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project myHeight); 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.measure(childWidthMeasureSpec, childHeightMeasureSpec); 5559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 557f782e60efc09f210643432f31b4c18026d7716d6Romain Guy private void measureChildHorizontal(View child, LayoutParams params, int myWidth, int myHeight) { 558956070383945db5f842ec05e507fd0233705738cRomain Guy int childWidthMeasureSpec = getChildMeasureSpec(params.mLeft, 559956070383945db5f842ec05e507fd0233705738cRomain Guy params.mRight, params.width, 560956070383945db5f842ec05e507fd0233705738cRomain Guy params.leftMargin, params.rightMargin, 561956070383945db5f842ec05e507fd0233705738cRomain Guy mPaddingLeft, mPaddingRight, 562956070383945db5f842ec05e507fd0233705738cRomain Guy myWidth); 563f782e60efc09f210643432f31b4c18026d7716d6Romain Guy int childHeightMeasureSpec; 564f782e60efc09f210643432f31b4c18026d7716d6Romain Guy if (params.width == LayoutParams.FILL_PARENT) { 565baac46339da03aed166e8a4240ad063caad019adRomain Guy childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(myHeight, MeasureSpec.EXACTLY); 566f782e60efc09f210643432f31b4c18026d7716d6Romain Guy } else { 567baac46339da03aed166e8a4240ad063caad019adRomain Guy childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(myHeight, MeasureSpec.AT_MOST); 568f782e60efc09f210643432f31b4c18026d7716d6Romain Guy } 569725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy child.measure(childWidthMeasureSpec, childHeightMeasureSpec); 570725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 571725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 5729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a measure spec that accounts for all of the constraints on this view. 5749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This includes size contstraints imposed by the RelativeLayout as well as 5759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the View's desired dimension. 5769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childStart The left or top field of the child's layout params 5789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childEnd The right or bottom field of the child's layout params 5799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childSize The child's desired size (the width or height field of 5809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the child's layout params) 5819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param startMargin The left or top margin 5829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param endMargin The right or bottom margin 5839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param startPadding mPaddingLeft or mPaddingTop 5849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param endPadding mPaddingRight or mPaddingBottom 5859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mySize The width or height of this view (the RelativeLayout) 5869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return MeasureSpec for the child 5879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int getChildMeasureSpec(int childStart, int childEnd, 5899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childSize, int startMargin, int endMargin, int startPadding, 5909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int endPadding, int mySize) { 5919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childSpecMode = 0; 5929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childSpecSize = 0; 5939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Figure out start and end bounds. 5959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int tempStart = childStart; 5969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int tempEnd = childEnd; 5979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the view did not express a layout constraint for an edge, use 5999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // view's margins and our padding 6009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (tempStart < 0) { 6019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project tempStart = startPadding + startMargin; 6029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (tempEnd < 0) { 6049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project tempEnd = mySize - endPadding - endMargin; 6059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Figure out maximum size available to this view 6089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int maxAvailable = tempEnd - tempStart; 6099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childStart >= 0 && childEnd >= 0) { 6119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Constraints fixed both edges, so child must be an exact size 6129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecMode = MeasureSpec.EXACTLY; 6139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecSize = maxAvailable; 6149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 6159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childSize >= 0) { 6169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Child wanted an exact size. Give as much as possible 6179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecMode = MeasureSpec.EXACTLY; 6189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (maxAvailable >= 0) { 6209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We have a maxmum size in this dimension. 6219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecSize = Math.min(maxAvailable, childSize); 6229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 6239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We can grow in this dimension. 6249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecSize = childSize; 6259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childSize == LayoutParams.FILL_PARENT) { 6279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Child wanted to be as big as possible. Give all availble 6289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // space 6299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecMode = MeasureSpec.EXACTLY; 6309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecSize = maxAvailable; 6319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childSize == LayoutParams.WRAP_CONTENT) { 6329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Child wants to wrap content. Use AT_MOST 6339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to communicate available space if we know 6349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // our max size 6359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (maxAvailable >= 0) { 6369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We have a maxmum size in this dimension. 6379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecMode = MeasureSpec.AT_MOST; 6389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecSize = maxAvailable; 6399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 6409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We can grow in this dimension. Child can be as big as it 6419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // wants 6429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecMode = MeasureSpec.UNSPECIFIED; 6439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecSize = 0; 6449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return MeasureSpec.makeMeasureSpec(childSpecSize, childSpecMode); 6499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 651f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy private boolean positionChildHorizontal(View child, LayoutParams params, int myWidth, 652f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy boolean wrapContent) { 653f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 6549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] rules = params.getRules(); 6559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (params.mLeft < 0 && params.mRight >= 0) { 6579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Right is fixed, but left varies 6589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mLeft = params.mRight - child.getMeasuredWidth(); 6599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (params.mLeft >= 0 && params.mRight < 0) { 6609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Left is fixed, but right varies 6619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mRight = params.mLeft + child.getMeasuredWidth(); 6629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (params.mLeft < 0 && params.mRight < 0) { 6639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Both left and right vary 664f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (rules[CENTER_IN_PARENT] != 0 || rules[CENTER_HORIZONTAL] != 0) { 665f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (!wrapContent) { 666f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy centerHorizontal(child, params, myWidth); 667f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } else { 668f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy params.mLeft = mPaddingLeft + params.leftMargin; 669f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy params.mRight = params.mLeft + child.getMeasuredWidth(); 670f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 671f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy return true; 6729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 6739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mLeft = mPaddingLeft + params.leftMargin; 6749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mRight = params.mLeft + child.getMeasuredWidth(); 6759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 677f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy return false; 678725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 679725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 680f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy private boolean positionChildVertical(View child, LayoutParams params, int myHeight, 681f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy boolean wrapContent) { 682f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy 683725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy int[] rules = params.getRules(); 6849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (params.mTop < 0 && params.mBottom >= 0) { 6869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Bottom is fixed, but top varies 6879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mTop = params.mBottom - child.getMeasuredHeight(); 6889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (params.mTop >= 0 && params.mBottom < 0) { 6899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Top is fixed, but bottom varies 6909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mBottom = params.mTop + child.getMeasuredHeight(); 6919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (params.mTop < 0 && params.mBottom < 0) { 6929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Both top and bottom vary 693f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (rules[CENTER_IN_PARENT] != 0 || rules[CENTER_VERTICAL] != 0) { 694f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy if (!wrapContent) { 695f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy centerVertical(child, params, myHeight); 696f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } else { 697f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy params.mTop = mPaddingTop + params.topMargin; 698f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy params.mBottom = params.mTop + child.getMeasuredHeight(); 699f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy } 700f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy return true; 7019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 7029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mTop = mPaddingTop + params.topMargin; 7039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mBottom = params.mTop + child.getMeasuredHeight(); 7049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 706f7dabb088a474f821d1b07af9a51d063b4782537Romain Guy return false; 7079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 709725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private void applyHorizontalSizeRules(LayoutParams childParams, int myWidth) { 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] rules = childParams.getRules(); 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RelativeLayout.LayoutParams anchorParams; 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // -1 indicated a "soft requirement" in that direction. For example: 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The 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 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The 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 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // left=10, right=20 means the left and right ends are both fixed 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mLeft = -1; 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mRight = -1; 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, LEFT_OF); 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mRight = anchorParams.mLeft - (anchorParams.leftMargin + 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.rightMargin); 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[LEFT_OF] != 0) { 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (myWidth >= 0) { 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mRight = myWidth - mPaddingRight - childParams.rightMargin; 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 7289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME uh oh... 7299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, RIGHT_OF); 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mLeft = anchorParams.mRight + (anchorParams.rightMargin + 7359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.leftMargin); 7369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[RIGHT_OF] != 0) { 7379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mLeft = mPaddingLeft + childParams.leftMargin; 7389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, ALIGN_LEFT); 7419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 7429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mLeft = anchorParams.mLeft + childParams.leftMargin; 7439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[ALIGN_LEFT] != 0) { 7449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mLeft = mPaddingLeft + childParams.leftMargin; 7459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, ALIGN_RIGHT); 7489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 7499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mRight = anchorParams.mRight - childParams.rightMargin; 7509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[ALIGN_RIGHT] != 0) { 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (myWidth >= 0) { 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mRight = myWidth - mPaddingRight - childParams.rightMargin; 7539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 7549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME uh oh... 7559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (0 != rules[ALIGN_PARENT_LEFT]) { 7599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mLeft = mPaddingLeft + childParams.leftMargin; 7609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (0 != rules[ALIGN_PARENT_RIGHT]) { 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 } 769725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 770725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 771725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private void applyVerticalSizeRules(LayoutParams childParams, int myHeight) { 772725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy int[] rules = childParams.getRules(); 773725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy RelativeLayout.LayoutParams anchorParams; 7749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mTop = -1; 7769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mBottom = -1; 7779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, ABOVE); 7799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 7809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mBottom = anchorParams.mTop - (anchorParams.topMargin + 7819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.bottomMargin); 7829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[ABOVE] != 0) { 7839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (myHeight >= 0) { 7849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mBottom = myHeight - mPaddingBottom - childParams.bottomMargin; 7859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 7869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME uh oh... 7879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, BELOW); 7919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 7929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mTop = anchorParams.mBottom + (anchorParams.bottomMargin + 7939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.topMargin); 7949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[BELOW] != 0) { 7959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mTop = mPaddingTop + childParams.topMargin; 7969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, ALIGN_TOP); 7999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 8009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mTop = anchorParams.mTop + childParams.topMargin; 8019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[ALIGN_TOP] != 0) { 8029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mTop = mPaddingTop + childParams.topMargin; 8039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, ALIGN_BOTTOM); 8069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 8079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mBottom = anchorParams.mBottom - childParams.bottomMargin; 8089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[ALIGN_BOTTOM] != 0) { 8099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (myHeight >= 0) { 8109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mBottom = myHeight - mPaddingBottom - childParams.bottomMargin; 8119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 8129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME uh oh... 8139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (0 != rules[ALIGN_PARENT_TOP]) { 8179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mTop = mPaddingTop + childParams.topMargin; 8189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (0 != rules[ALIGN_PARENT_BOTTOM]) { 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 (rules[ALIGN_BASELINE] != 0) { 8299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mHasBaselineAlignedChild = true; 8309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View getRelatedView(int[] rules, int relation) { 8349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int id = rules[relation]; 8359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (id != 0) { 8361ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy DependencyGraph.Node node = mGraph.mKeyNodes.get(id); 837a0fd1d742d8edaf6c7e79bdd16a9b0c44fda4503Romain Guy if (node == null) return null; 838a0fd1d742d8edaf6c7e79bdd16a9b0c44fda4503Romain Guy View v = node.view; 8399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Find the first non-GONE view up the chain 8419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while (v.getVisibility() == View.GONE) { 8429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules = ((LayoutParams) v.getLayoutParams()).getRules(); 8431ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy node = mGraph.mKeyNodes.get((rules[relation])); 844a0fd1d742d8edaf6c7e79bdd16a9b0c44fda4503Romain Guy if (node == null) return null; 845a0fd1d742d8edaf6c7e79bdd16a9b0c44fda4503Romain Guy v = node.view; 8469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return v; 8499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 8529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private LayoutParams getRelatedViewParams(int[] rules, int relation) { 8559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getRelatedView(rules, relation); 8569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) { 8579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewGroup.LayoutParams params = v.getLayoutParams(); 8589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (params instanceof LayoutParams) { 8599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (LayoutParams) v.getLayoutParams(); 8609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 8639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int getRelatedViewBaseline(int[] rules, int relation) { 8669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getRelatedView(rules, relation); 8679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) { 8689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return v.getBaseline(); 8699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return -1; 8719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void centerHorizontal(View child, LayoutParams params, int myWidth) { 8749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childWidth = child.getMeasuredWidth(); 8759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int left = (myWidth - childWidth) / 2; 8769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mLeft = left; 8789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mRight = left + childWidth; 8799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void centerVertical(View child, LayoutParams params, int myHeight) { 8829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childHeight = child.getMeasuredHeight(); 8839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int top = (myHeight - childHeight) / 2; 8849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mTop = top; 8869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mBottom = top + childHeight; 8879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 8909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 8919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The layout has actually already been performed and the positions 8929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // cached. Apply the cached values to the children. 8939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 8949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 8969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 8979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() != GONE) { 8989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RelativeLayout.LayoutParams st = 8999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (RelativeLayout.LayoutParams) child.getLayoutParams(); 9009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.layout(st.mLeft, st.mTop, st.mRight, st.mBottom); 9019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 9079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams generateLayoutParams(AttributeSet attrs) { 9089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new RelativeLayout.LayoutParams(getContext(), attrs); 9099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns a set of layout parameters with a width of 9139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup.LayoutParams#WRAP_CONTENT}, 9149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * a height of {@link android.view.ViewGroup.LayoutParams#WRAP_CONTENT} and no spanning. 9159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 9179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateDefaultLayoutParams() { 9189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT); 9199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Override to allow type-checking of LayoutParams. 9229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 9239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 9249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof RelativeLayout.LayoutParams; 9259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 9289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 9299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(p); 9309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 93275986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov @Override 93375986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) { 93475986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov if (mTopToBottomLeftToRightSet == null) { 93575986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov mTopToBottomLeftToRightSet = new TreeSet<View>(new TopToBottomLeftToRightComparator()); 93675986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 93775986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov 93875986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov // sort children top-to-bottom and left-to-right 93975986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov for (int i = 0, count = getChildCount(); i < count; i++) { 94075986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov mTopToBottomLeftToRightSet.add(getChildAt(i)); 94175986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 94275986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov 94375986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov for (View view : mTopToBottomLeftToRightSet) { 94475986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov if (view.dispatchPopulateAccessibilityEvent(event)) { 94575986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov mTopToBottomLeftToRightSet.clear(); 94675986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov return true; 94775986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 94875986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 94975986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov 95075986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov mTopToBottomLeftToRightSet.clear(); 95175986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov return false; 95275986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 95375986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov 95475986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov /** 95575986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov * Compares two views in left-to-right and top-to-bottom fashion. 95675986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov */ 95775986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov private class TopToBottomLeftToRightComparator implements Comparator<View> { 95875986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov public int compare(View first, View second) { 95975986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov // top - bottom 96075986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov int topDifference = first.getTop() - second.getTop(); 96175986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov if (topDifference != 0) { 96275986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov return topDifference; 96375986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 96475986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov // left - right 96575986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov int leftDifference = first.getLeft() - second.getLeft(); 96675986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov if (leftDifference != 0) { 96775986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov return leftDifference; 96875986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 96975986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov // break tie by height 97075986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov int heightDiference = first.getHeight() - second.getHeight(); 97175986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov if (heightDiference != 0) { 97275986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov return heightDiference; 97375986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 97475986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov // break tie by width 97575986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov int widthDiference = first.getWidth() - second.getWidth(); 97675986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov if (widthDiference != 0) { 97775986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov return widthDiference; 97875986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 97975986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov return 0; 98075986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 98175986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 98275986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov 9839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Per-child layout information associated with RelativeLayout. 9859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 9869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignWithParentIfMissing 9879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_toLeftOf 9889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_toRightOf 9899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_above 9909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_below 9919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignBaseline 9929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignLeft 9939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignTop 9949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignRight 9959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignBottom 9969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignParentLeft 9979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignParentTop 9989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignParentRight 9999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignParentBottom 10009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_centerInParent 10019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_centerHorizontal 10029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_centerVertical 10039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class LayoutParams extends ViewGroup.MarginLayoutParams { 1005c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.ExportedProperty(resolveId = true, indexMapping = { 1006c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ABOVE, to = "above"), 1007c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_BASELINE, to = "alignBaseline"), 1008c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_BOTTOM, to = "alignBottom"), 1009c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_LEFT, to = "alignLeft"), 1010c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_PARENT_BOTTOM, to = "alignParentBottom"), 1011c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_PARENT_LEFT, to = "alignParentLeft"), 1012c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_PARENT_RIGHT, to = "alignParentRight"), 1013c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_PARENT_TOP, to = "alignParentTop"), 1014c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_RIGHT, to = "alignRight"), 1015c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_TOP, to = "alignTop"), 1016c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = BELOW, to = "below"), 1017c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = CENTER_HORIZONTAL, to = "centerHorizontal"), 1018c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = CENTER_IN_PARENT, to = "center"), 1019c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = CENTER_VERTICAL, to = "centerVertical"), 1020c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = LEFT_OF, to = "leftOf"), 1021c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = RIGHT_OF, to = "rightOf") 1022105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project }, mapping = { 1023105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project @ViewDebug.IntToString(from = TRUE, to = "true"), 1024a1f3e4aef19882b4b81075d9205bd363efe1e66dRomain Guy @ViewDebug.IntToString(from = 0, to = "false/NO_ID") 1025105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project }) 10269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int[] mRules = new int[VERB_COUNT]; 1027c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project 10289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLeft, mTop, mRight, mBottom; 10299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When true, uses the parent as the anchor if the anchor doesn't exist or if 10329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the anchor's visibility is GONE. 10339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1034c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.ExportedProperty 10359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean alignWithParent; 10369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(Context c, AttributeSet attrs) { 10389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(c, attrs); 10399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = c.obtainStyledAttributes(attrs, 10419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.RelativeLayout_Layout); 10429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] rules = mRules; 10449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int N = a.getIndexCount(); 10469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < N; i++) { 10479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int attr = a.getIndex(i); 10489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (attr) { 10499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignWithParentIfMissing: 10509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project alignWithParent = a.getBoolean(attr, false); 10519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 10529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_toLeftOf: 10539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[LEFT_OF] = a.getResourceId(attr, 0); 10549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 10559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_toRightOf: 10569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[RIGHT_OF] = a.getResourceId(attr, 0); 10579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 10589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_above: 10599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ABOVE] = a.getResourceId(attr, 0); 10609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 10619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_below: 10629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[BELOW] = a.getResourceId(attr, 0); 10639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 10649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignBaseline: 10659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_BASELINE] = a.getResourceId(attr, 0); 10669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 10679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignLeft: 10689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_LEFT] = a.getResourceId(attr, 0); 10699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 10709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignTop: 10719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_TOP] = a.getResourceId(attr, 0); 10729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 10739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignRight: 10749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_RIGHT] = a.getResourceId(attr, 0); 10759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 10769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignBottom: 10779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_BOTTOM] = a.getResourceId(attr, 0); 10789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 10799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignParentLeft: 10809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_PARENT_LEFT] = a.getBoolean(attr, false) ? TRUE : 0; 10819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 10829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignParentTop: 10839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_PARENT_TOP] = a.getBoolean(attr, false) ? TRUE : 0; 10849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 10859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignParentRight: 10869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_PARENT_RIGHT] = a.getBoolean(attr, false) ? TRUE : 0; 10879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 10889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignParentBottom: 10899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_PARENT_BOTTOM] = a.getBoolean(attr, false) ? TRUE : 0; 10909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 10919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_centerInParent: 10929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[CENTER_IN_PARENT] = 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_centerHorizontal: 10959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[CENTER_HORIZONTAL] = 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_centerVertical: 10989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[CENTER_VERTICAL] = a.getBoolean(attr, false) ? TRUE : 0; 10999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 11009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 11049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h) { 11079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 11089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 11129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams source) { 11149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 11159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 11199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.MarginLayoutParams source) { 11219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 11229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 11259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String debug(String output) { 11269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return output + "ViewGroup.LayoutParams={ width=" + sizeToString(width) + 11279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ", height=" + sizeToString(height) + " }"; 11289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Adds a layout rule to be interpreted by the RelativeLayout. This 11329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * method should only be used for constraints that don't refer to another sibling 11339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (e.g., CENTER_IN_PARENT) or take a boolean value ({@link RelativeLayout#TRUE} 11349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * for true or - for false). To specify a verb that takes a subject, use 11359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #addRule(int, int)} instead. 11369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param verb One of the verbs defined by 11389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.RelativeLayout RelativeLayout}, such as 11399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * ALIGN_WITH_PARENT_LEFT. 11409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #addRule(int, int) 11419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addRule(int verb) { 11439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRules[verb] = TRUE; 11449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Adds a layout rule to be interpreted by the RelativeLayout. Use this for 11489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * verbs that take a target, such as a sibling (ALIGN_RIGHT) or a boolean 11499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * value (VISIBLE). 11509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param verb One of the verbs defined by 11529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.RelativeLayout RelativeLayout}, such as 11539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * ALIGN_WITH_PARENT_LEFT. 11549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param anchor The id of another view to use as an anchor, 11559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * or a boolean value(represented as {@link RelativeLayout#TRUE}) 11569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * for true or 0 for false). For verbs that don't refer to another sibling 11579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (for example, ALIGN_WITH_PARENT_BOTTOM) just use -1. 11589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #addRule(int) 11599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addRule(int verb, int anchor) { 11619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRules[verb] = anchor; 11629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Retrieves a complete list of all supported rules, where the index is the rule 11669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * verb, and the element value is the value specified, or "false" if it was never 11679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * set. 11689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the supported rules 11709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #addRule(int, int) 11719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int[] getRules() { 11739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mRules; 11749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1176725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1177725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private static class DependencyGraph { 1178725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 11791ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy * List of all views in the graph. 11801ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy */ 11811ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy private ArrayList<Node> mNodes = new ArrayList<Node>(); 11821ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy 11831ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy /** 1184725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * List of nodes in the graph. Each node is identified by its 1185725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * view id (see View#getId()). 1186725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 11871ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy private SparseArray<Node> mKeyNodes = new SparseArray<Node>(); 1188725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1189725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1190725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * Temporary data structure used to build the list of roots 1191725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * for this graph. 1192725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1193725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private LinkedList<Node> mRoots = new LinkedList<Node>(); 1194725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1195725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1196725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * Clears the graph. 1197725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1198725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy void clear() { 11991ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final ArrayList<Node> nodes = mNodes; 1200725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final int count = nodes.size(); 1201725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1202725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 12031ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy nodes.get(i).release(); 1204725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1205725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy nodes.clear(); 1206725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 12071ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy mKeyNodes.clear(); 1208725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy mRoots.clear(); 1209725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1210725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1211725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1212725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * Adds a view to the graph. 1213725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * 1214725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * @param view The view to be added as a node to the graph. 1215725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1216725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy void add(View view) { 12171ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final int id = view.getId(); 12181ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final Node node = Node.acquire(view); 12191ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy 12201ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy if (id != View.NO_ID) { 12211ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy mKeyNodes.put(id, node); 12221ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy } 12231ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy 12241ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy mNodes.add(node); 1225725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1226725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1227725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1228725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * Builds a sorted list of views. The sorting order depends on the dependencies 1229725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * between the view. For instance, if view C needs view A to be processed first 1230725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * and view A needs view B to be processed first, the dependency graph 1231725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * is: B -> A -> C. The sorted array will contain views B, A and C in this order. 1232725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * 1233725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * @param sorted The sorted list of views. The length of this array must 1234725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * be equal to getChildCount(). 1235725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * @param rules The list of rules to take into account. 1236725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1237725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy void getSortedViews(View[] sorted, int... rules) { 1238725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final LinkedList<Node> roots = findRoots(rules); 1239725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy int index = 0; 1240725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1241725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy while (roots.size() > 0) { 1242725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final Node node = roots.removeFirst(); 1243725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final View view = node.view; 1244725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final int key = view.getId(); 1245725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1246725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy sorted[index++] = view; 1247725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1248725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final HashSet<Node> dependents = node.dependents; 1249725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (Node dependent : dependents) { 1250725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final SparseArray<Node> dependencies = dependent.dependencies; 1251725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1252725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy dependencies.remove(key); 1253725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (dependencies.size() == 0) { 1254725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy roots.add(dependent); 1255725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1256725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1257725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1258725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1259725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (index < sorted.length) { 1260725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy throw new IllegalStateException("Circular dependencies cannot exist" 1261725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy + " in RelativeLayout"); 1262725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1263725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1264725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1265725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1266725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * Finds the roots of the graph. A root is a node with no dependency and 1267725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * with [0..n] dependents. 1268725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * 1269725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * @param rulesFilter The list of rules to consider when building the 1270725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * dependencies 1271725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * 1272725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * @return A list of node, each being a root of the graph 1273725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1274725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private LinkedList<Node> findRoots(int[] rulesFilter) { 12751ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final SparseArray<Node> keyNodes = mKeyNodes; 12761ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final ArrayList<Node> nodes = mNodes; 1277725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final int count = nodes.size(); 1278725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1279725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // Find roots can be invoked several times, so make sure to clear 1280725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // all dependents and dependencies before running the algorithm 1281725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 12821ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final Node node = nodes.get(i); 1283725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy node.dependents.clear(); 1284725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy node.dependencies.clear(); 1285725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1286725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1287725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // Builds up the dependents and dependencies for each node of the graph 1288725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 12891ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final Node node = nodes.get(i); 1290725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1291725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final LayoutParams layoutParams = (LayoutParams) node.view.getLayoutParams(); 1292725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final int[] rules = layoutParams.mRules; 1293725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final int rulesCount = rulesFilter.length; 1294725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1295725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // Look only the the rules passed in parameter, this way we build only the 1296725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // dependencies for a specific set of rules 1297725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int j = 0; j < rulesCount; j++) { 1298725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final int rule = rules[rulesFilter[j]]; 1299725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (rule > 0) { 1300725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // The node this node depends on 13011ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final Node dependency = keyNodes.get(rule); 1302da3003e1d71d66a1c936489025f8db314a2a4588Romain Guy // Skip unknowns and self dependencies 1303da3003e1d71d66a1c936489025f8db314a2a4588Romain Guy if (dependency == null || dependency == node) { 1304b8f8de85160b0a072158b45320e9fc2adba545f5Romain Guy continue; 1305b8f8de85160b0a072158b45320e9fc2adba545f5Romain Guy } 1306725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // Add the current node as a dependent 1307725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy dependency.dependents.add(node); 1308725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // Add a dependency to the current node 1309725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy node.dependencies.put(rule, dependency); 1310725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1311725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1312725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1313725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1314725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final LinkedList<Node> roots = mRoots; 1315725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy roots.clear(); 1316725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1317725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // Finds all the roots in the graph: all nodes with no dependencies 1318725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 13191ab621e316828fa65e8941954e2a3c7f1d68f77aRomain Guy final Node node = nodes.get(i); 1320725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (node.dependencies.size() == 0) roots.add(node); 1321725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1322725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1323725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy return roots; 1324725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1325725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1326725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1327725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * Prints the dependency graph for the specified rules. 1328725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * 1329725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * @param resources The context's resources to print the ids. 1330725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * @param rules The list of rules to take into account. 1331725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1332725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy void log(Resources resources, int... rules) { 1333725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final LinkedList<Node> roots = findRoots(rules); 1334725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (Node node : roots) { 1335725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy printNode(resources, node); 1336725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1337725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1338725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 13399fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy static void printViewId(Resources resources, View view) { 1340725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (view.getId() != View.NO_ID) { 1341725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy d(LOG_TAG, resources.getResourceEntryName(view.getId())); 1342725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } else { 1343725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy d(LOG_TAG, "NO_ID"); 1344725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1345725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1346725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1347725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private static void appendViewId(Resources resources, Node node, StringBuilder buffer) { 1348725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (node.view.getId() != View.NO_ID) { 1349725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy buffer.append(resources.getResourceEntryName(node.view.getId())); 1350725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } else { 1351725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy buffer.append("NO_ID"); 1352725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1353725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1354725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1355725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private static void printNode(Resources resources, Node node) { 1356725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (node.dependents.size() == 0) { 1357725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy printViewId(resources, node.view); 1358725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } else { 1359725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (Node dependent : node.dependents) { 1360725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy StringBuilder buffer = new StringBuilder(); 1361725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy appendViewId(resources, node, buffer); 1362725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy printdependents(resources, dependent, buffer); 1363725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1364725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1365725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1366725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1367725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private static void printdependents(Resources resources, Node node, StringBuilder buffer) { 1368725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy buffer.append(" -> "); 1369725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy appendViewId(resources, node, buffer); 1370725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1371725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (node.dependents.size() == 0) { 1372725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy d(LOG_TAG, buffer.toString()); 1373725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } else { 1374725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (Node dependent : node.dependents) { 1375725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy StringBuilder subBuffer = new StringBuilder(buffer); 1376725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy printdependents(resources, dependent, subBuffer); 1377725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1378725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1379725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1380725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1381725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1382725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * A node in the dependency graph. A node is a view, its list of dependencies 1383725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * and its list of dependents. 1384725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * 1385725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * A node with no dependent is considered a root of the graph. 1386725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1387725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy static class Node implements Poolable<Node> { 1388725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1389725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * The view representing this node in the layout. 1390725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1391725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy View view; 1392725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1393725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1394725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * The list of dependents for this node; a dependent is a node 1395725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * that needs this node to be processed first. 1396725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1397725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final HashSet<Node> dependents = new HashSet<Node>(); 1398725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1399725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1400725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * The list of dependencies for this node. 1401725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1402725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final SparseArray<Node> dependencies = new SparseArray<Node>(); 1403725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1404725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /* 1405725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * START POOL IMPLEMENTATION 1406725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1407baac46339da03aed166e8a4240ad063caad019adRomain Guy // The pool is static, so all nodes instances are shared across 1408baac46339da03aed166e8a4240ad063caad019adRomain Guy // activities, that's why we give it a rather high limit 1409baac46339da03aed166e8a4240ad063caad019adRomain Guy private static final int POOL_LIMIT = 100; 1410725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private static final Pool<Node> sPool = Pools.synchronizedPool( 1411725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy Pools.finitePool(new PoolableManager<Node>() { 1412725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy public Node newInstance() { 1413725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy return new Node(); 1414725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1415725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1416725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy public void onAcquired(Node element) { 1417725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1418725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1419725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy public void onReleased(Node element) { 1420725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1421725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy }, POOL_LIMIT) 1422725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy ); 1423725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1424725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private Node mNext; 1425725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1426725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy public void setNextPoolable(Node element) { 1427725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy mNext = element; 1428725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1429725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1430725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy public Node getNextPoolable() { 1431725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy return mNext; 1432725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1433725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1434725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy static Node acquire(View view) { 1435725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final Node node = sPool.acquire(); 1436725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy node.view = view; 1437725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1438725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy return node; 1439725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1440725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1441725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy void release() { 1442725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy view = null; 1443725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy dependents.clear(); 1444725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy dependencies.clear(); 1445725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1446725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy sPool.release(this); 1447725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1448725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /* 1449725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * END POOL IMPLEMENTATION 1450725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1451725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1452725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 14539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1454