RelativeLayout.java revision 9fffa1eb40f5121866cb8e547b8bbd7eafee5281
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; 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A Layout where the positions of the children can be described in relation to each other or to the 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * parent. For the sake of efficiency, the relations between views are evaluated in one pass, so if 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view Y is dependent on the position of view X, make sure the view X comes first in the layout. 49a1f3e4aef19882b4b81075d9205bd363efe1e66dRomain Guy * 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p> 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that you cannot have a circular dependency between the size of the RelativeLayout and the 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position of its children. For example, you cannot have a RelativeLayout whose height is set to 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup.LayoutParams#WRAP_CONTENT WRAP_CONTENT} and a child set to 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #ALIGN_PARENT_BOTTOM}. 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * </p> 56a1f3e4aef19882b4b81075d9205bd363efe1e66dRomain Guy * 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p> 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Also see {@link android.widget.RelativeLayout.LayoutParams RelativeLayout.LayoutParams} for 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout attributes 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * </p> 61a1f3e4aef19882b4b81075d9205bd363efe1e66dRomain Guy * 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_gravity 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_ignoreGravity 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project@RemoteView 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic class RelativeLayout extends ViewGroup { 67725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private static final String LOG_TAG = "RelativeLayout"; 68725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 69725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private static final boolean DEBUG_GRAPH = false; 70725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRUE = -1; 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's right edge with another child's left edge. 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int LEFT_OF = 0; 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's left edge with another child's right edge. 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int RIGHT_OF = 1; 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's bottom edge with another child's top edge. 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ABOVE = 2; 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's top edge with another child's bottom edge. 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int BELOW = 3; 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's baseline with another child's baseline. 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_BASELINE = 4; 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's left edge with another child's left edge. 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_LEFT = 5; 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's top edge with another child's top edge. 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_TOP = 6; 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's right edge with another child's right edge. 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_RIGHT = 7; 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns a child's bottom edge with another child's bottom edge. 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_BOTTOM = 8; 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns the child's left edge with its RelativeLayout 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * parent's left edge. 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_PARENT_LEFT = 9; 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns the child's top edge with its RelativeLayout 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * parent's top edge. 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_PARENT_TOP = 10; 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns the child's right edge with its RelativeLayout 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * parent's right edge. 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_PARENT_RIGHT = 11; 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that aligns the child's bottom edge with its RelativeLayout 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * parent's bottom edge. 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALIGN_PARENT_BOTTOM = 12; 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that centers the child with respect to the bounds of its 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * RelativeLayout parent. 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int CENTER_IN_PARENT = 13; 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that centers the child horizontally with respect to the 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bounds of its RelativeLayout parent. 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int CENTER_HORIZONTAL = 14; 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rule that centers the child vertically with respect to the 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bounds of its RelativeLayout parent. 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int CENTER_VERTICAL = 15; 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int VERB_COUNT = 16; 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View mBaselineView = null; 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mHasBaselineAlignedChild; 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mGravity = Gravity.LEFT | Gravity.TOP; 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final Rect mContentBounds = new Rect(); 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final Rect mSelfBounds = new Rect(); 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mIgnoreGravity; 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 158725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private SortedSet<View> mTopToBottomLeftToRightSet = null; 159725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 160725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private boolean mDirtyHierarchy; 161725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private View[] mSortedHorizontalChildren = new View[0]; 162725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private View[] mSortedVerticalChildren = new View[0]; 163725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private final DependencyGraph mGraph = new DependencyGraph(); 16475986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public RelativeLayout(Context context) { 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context); 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public RelativeLayout(Context context, AttributeSet attrs) { 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, attrs); 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initFromAttributes(context, attrs); 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public RelativeLayout(Context context, AttributeSet attrs, int defStyle) { 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, attrs, defStyle); 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initFromAttributes(context, attrs); 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void initFromAttributes(Context context, AttributeSet attrs) { 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.RelativeLayout); 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIgnoreGravity = a.getResourceId(R.styleable.RelativeLayout_ignoreGravity, View.NO_ID); 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGravity = a.getInt(R.styleable.RelativeLayout_gravity, mGravity); 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines which View is ignored when the gravity is applied. This setting has no 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * effect if the gravity is <code>Gravity.LEFT | Gravity.TOP</code>. 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param viewId The id of the View to be ignored by gravity, or 0 if no View 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * should be ignored. 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setGravity(int) 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_ignoreGravity 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @android.view.RemotableViewMethod 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setIgnoreGravity(int viewId) { 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIgnoreGravity = viewId; 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Describes how the child views are positioned. Defaults to 2049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <code>Gravity.LEFT | Gravity.TOP</code>. 2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param gravity See {@link android.view.Gravity} 2079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setHorizontalGravity(int) 2099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setVerticalGravity(int) 2109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_gravity 2129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @android.view.RemotableViewMethod 2149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setGravity(int gravity) { 2159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mGravity != gravity) { 2169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((gravity & Gravity.HORIZONTAL_GRAVITY_MASK) == 0) { 2179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project gravity |= Gravity.LEFT; 2189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((gravity & Gravity.VERTICAL_GRAVITY_MASK) == 0) { 2219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project gravity |= Gravity.TOP; 2229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGravity = gravity; 2259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 2269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @android.view.RemotableViewMethod 2309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setHorizontalGravity(int horizontalGravity) { 2319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int gravity = horizontalGravity & Gravity.HORIZONTAL_GRAVITY_MASK; 2329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) != gravity) { 2339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGravity = (mGravity & ~Gravity.HORIZONTAL_GRAVITY_MASK) | gravity; 2349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 2359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @android.view.RemotableViewMethod 2399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setVerticalGravity(int verticalGravity) { 2409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int gravity = verticalGravity & Gravity.VERTICAL_GRAVITY_MASK; 2419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != gravity) { 2429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGravity = (mGravity & ~Gravity.VERTICAL_GRAVITY_MASK) | gravity; 2439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 2449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getBaseline() { 2499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mBaselineView != null ? mBaselineView.getBaseline() : super.getBaseline(); 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 253725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy public void requestLayout() { 254725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy super.requestLayout(); 255725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy mDirtyHierarchy = true; 256725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 257725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 258725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private void sortChildren() { 259725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy int count = getChildCount(); 260725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (mSortedVerticalChildren.length != count) mSortedVerticalChildren = new View[count]; 261725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (mSortedHorizontalChildren.length != count) mSortedHorizontalChildren = new View[count]; 262725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 263725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final DependencyGraph graph = mGraph; 264725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy graph.clear(); 265725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 266725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 267725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final View child = getChildAt(i); 268725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy graph.add(child); 269725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 270725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 271725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (DEBUG_GRAPH) { 272725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy d(LOG_TAG, "=== Sorted vertical children"); 273725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy graph.log(getResources(), ABOVE, BELOW, ALIGN_BASELINE, ALIGN_TOP, ALIGN_BOTTOM); 274725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy d(LOG_TAG, "=== Sorted horizontal children"); 275725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy graph.log(getResources(), LEFT_OF, RIGHT_OF, ALIGN_LEFT, ALIGN_RIGHT); 276725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 277725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 278725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy graph.getSortedViews(mSortedVerticalChildren, ABOVE, BELOW, ALIGN_BASELINE, 279725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy ALIGN_TOP, ALIGN_BOTTOM); 280725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy graph.getSortedViews(mSortedHorizontalChildren, LEFT_OF, RIGHT_OF, ALIGN_LEFT, ALIGN_RIGHT); 2819fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy 2829fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy if (DEBUG_GRAPH) { 2839fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy d(LOG_TAG, "=== Ordered list of vertical children"); 2849fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy for (View view : mSortedVerticalChildren) { 2859fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy DependencyGraph.printViewId(getResources(), view); 2869fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy } 2879fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy d(LOG_TAG, "=== Ordered list of horizontal children"); 2889fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy for (View view : mSortedHorizontalChildren) { 2899fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy DependencyGraph.printViewId(getResources(), view); 2909fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy } 2919fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy } 292725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 293725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 294725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy @Override 2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 296725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (mDirtyHierarchy) { 297725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy mDirtyHierarchy = false; 298725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy sortChildren(); 299725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 300725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int myWidth = -1; 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int myHeight = -1; 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int width = 0; 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = 0; 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int widthMode = MeasureSpec.getMode(widthMeasureSpec); 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int heightMode = MeasureSpec.getMode(heightMeasureSpec); 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int widthSize = MeasureSpec.getSize(widthMeasureSpec); 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int heightSize = MeasureSpec.getSize(heightMeasureSpec); 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Record our dimensions if they are known; 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (widthMode != MeasureSpec.UNSPECIFIED) { 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project myWidth = widthSize; 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (heightMode != MeasureSpec.UNSPECIFIED) { 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project myHeight = heightSize; 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (widthMode == MeasureSpec.EXACTLY) { 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project width = myWidth; 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (heightMode == MeasureSpec.EXACTLY) { 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = myHeight; 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mHasBaselineAlignedChild = false; 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View ignore = null; 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int gravity = mGravity & Gravity.HORIZONTAL_GRAVITY_MASK; 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean horizontalGravity = gravity != Gravity.LEFT && gravity != 0; 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean verticalGravity = gravity != Gravity.TOP && gravity != 0; 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int left = Integer.MAX_VALUE; 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int top = Integer.MAX_VALUE; 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int right = Integer.MIN_VALUE; 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int bottom = Integer.MIN_VALUE; 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((horizontalGravity || verticalGravity) && mIgnoreGravity != View.NO_ID) { 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ignore = findViewById(mIgnoreGravity); 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 346725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy View[] views = mSortedVerticalChildren; 347725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy int count = views.length; 348725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 349725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy View child = views[i]; 350725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (child.getVisibility() != GONE) { 351725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy LayoutParams params = (LayoutParams) child.getLayoutParams(); 352725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy applyVerticalSizeRules(params, myHeight); 353725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy measureChildVertical(child, params, myHeight); 354725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy positionChildVertical(child, params, myHeight); 355725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 356725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 357725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 358725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy views = mSortedHorizontalChildren; 359725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy count = views.length; 360725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 361725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy View child = views[i]; 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() != GONE) { 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LayoutParams params = (LayoutParams) child.getLayoutParams(); 364725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy applyHorizontalSizeRules(params, myWidth); 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project measureChild(child, params, myWidth, myHeight); 366725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy positionChildHorizontal(child, params, myWidth); 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (widthMode != MeasureSpec.EXACTLY) { 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project width = Math.max(width, params.mRight); 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (heightMode != MeasureSpec.EXACTLY) { 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = Math.max(height, params.mBottom); 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != ignore || verticalGravity) { 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project left = Math.min(left, params.mLeft - params.leftMargin); 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project top = Math.min(top, params.mTop - params.topMargin); 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != ignore || horizontalGravity) { 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project right = Math.max(right, params.mRight + params.rightMargin); 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project bottom = Math.max(bottom, params.mBottom + params.bottomMargin); 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mHasBaselineAlignedChild) { 388725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() != GONE) { 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LayoutParams params = (LayoutParams) child.getLayoutParams(); 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project alignBaseline(child, params); 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != ignore || verticalGravity) { 395725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy left = Math.min(left, params.mLeft - params.leftMargin); 396725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy top = Math.min(top, params.mTop - params.topMargin); 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != ignore || horizontalGravity) { 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project right = Math.max(right, params.mRight + params.rightMargin); 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project bottom = Math.max(bottom, params.mBottom + params.bottomMargin); 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (widthMode != MeasureSpec.EXACTLY) { 408a1f3e4aef19882b4b81075d9205bd363efe1e66dRomain Guy // Width already has left padding in it since it was calculated by looking at 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the right of each child view 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project width += mPaddingRight; 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mLayoutParams.width >= 0) { 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project width = Math.max(width, mLayoutParams.width); 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project width = Math.max(width, getSuggestedMinimumWidth()); 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project width = resolveSize(width, widthMeasureSpec); 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (heightMode != MeasureSpec.EXACTLY) { 420a1f3e4aef19882b4b81075d9205bd363efe1e66dRomain Guy // Height already has top padding in it since it was calculated by looking at 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the bottom of each child view 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height += mPaddingBottom; 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mLayoutParams.height >= 0) { 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = Math.max(height, mLayoutParams.height); 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = Math.max(height, getSuggestedMinimumHeight()); 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = resolveSize(height, heightMeasureSpec); 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (horizontalGravity || verticalGravity) { 4339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selfBounds = mSelfBounds; 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selfBounds.set(mPaddingLeft, mPaddingTop, width - mPaddingRight, 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height - mPaddingBottom); 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect contentBounds = mContentBounds; 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Gravity.apply(mGravity, right - left, bottom - top, selfBounds, contentBounds); 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int horizontalOffset = contentBounds.left - left; 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int verticalOffset = contentBounds.top - top; 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (horizontalOffset != 0 || verticalOffset != 0) { 443725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() != GONE && child != ignore) { 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LayoutParams params = (LayoutParams) child.getLayoutParams(); 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mLeft += horizontalOffset; 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mRight += horizontalOffset; 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mTop += verticalOffset; 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mBottom += verticalOffset; 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setMeasuredDimension(width, height); 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void alignBaseline(View child, LayoutParams params) { 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] rules = params.getRules(); 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int anchorBaseline = getRelatedViewBaseline(rules, ALIGN_BASELINE); 4629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorBaseline != -1) { 4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LayoutParams anchorParams = getRelatedViewParams(rules, ALIGN_BASELINE); 4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 4669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int offset = anchorParams.mTop + anchorBaseline; 4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int baseline = child.getBaseline(); 4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (baseline != -1) { 4699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offset -= baseline; 4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = params.mBottom - params.mTop; 4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mTop = offset; 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mBottom = params.mTop + height; 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mBaselineView == null) { 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mBaselineView = child; 4799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LayoutParams lp = (LayoutParams) mBaselineView.getLayoutParams(); 4819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (params.mTop < lp.mTop || (params.mTop == lp.mTop && params.mLeft < lp.mLeft)) { 4829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mBaselineView = child; 4839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Measure a child. The child should have left, top, right and bottom information 4899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * stored in its LayoutParams. If any of these values is -1 it means that the view 4909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * can extend up to the corresponding edge. 4919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param child Child to measure 4939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param params LayoutParams associated with child 4949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param myWidth Width of the the RelativeLayout 4959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param myHeight Height of the RelativeLayout 4969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 497725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private void measureChild(View child, LayoutParams params, int myWidth, int myHeight) { 4989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childWidthMeasureSpec = getChildMeasureSpec(params.mLeft, 4999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mRight, params.width, 5009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.leftMargin, params.rightMargin, 5019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPaddingLeft, mPaddingRight, 5029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project myWidth); 5039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childHeightMeasureSpec = getChildMeasureSpec(params.mTop, 5049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mBottom, params.height, 5059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.topMargin, params.bottomMargin, 5069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPaddingTop, mPaddingBottom, 5079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project myHeight); 5089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.measure(childWidthMeasureSpec, childHeightMeasureSpec); 5099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 511725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private void measureChildVertical(View child, LayoutParams params, int myHeight) { 512725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy int childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED); 513725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy int childHeightMeasureSpec = getChildMeasureSpec(params.mTop, 514725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy params.mBottom, params.height, 515725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy params.topMargin, params.bottomMargin, 516725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy mPaddingTop, mPaddingBottom, 517725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy myHeight); 518725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy child.measure(childWidthMeasureSpec, childHeightMeasureSpec); 519725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 520725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a measure spec that accounts for all of the constraints on this view. 5239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This includes size contstraints imposed by the RelativeLayout as well as 5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the View's desired dimension. 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childStart The left or top field of the child's layout params 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childEnd The right or bottom field of the child's layout params 5289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childSize The child's desired size (the width or height field of 5299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the child's layout params) 5309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param startMargin The left or top margin 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param endMargin The right or bottom margin 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param startPadding mPaddingLeft or mPaddingTop 5339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param endPadding mPaddingRight or mPaddingBottom 5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mySize The width or height of this view (the RelativeLayout) 5359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return MeasureSpec for the child 5369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int getChildMeasureSpec(int childStart, int childEnd, 5389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childSize, int startMargin, int endMargin, int startPadding, 5399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int endPadding, int mySize) { 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childSpecMode = 0; 5419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childSpecSize = 0; 5429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Figure out start and end bounds. 5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int tempStart = childStart; 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int tempEnd = childEnd; 5469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the view did not express a layout constraint for an edge, use 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // view's margins and our padding 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (tempStart < 0) { 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project tempStart = startPadding + startMargin; 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (tempEnd < 0) { 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project tempEnd = mySize - endPadding - endMargin; 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Figure out maximum size available to this view 5579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int maxAvailable = tempEnd - tempStart; 5589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childStart >= 0 && childEnd >= 0) { 5609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Constraints fixed both edges, so child must be an exact size 5619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecMode = MeasureSpec.EXACTLY; 5629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecSize = maxAvailable; 5639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 5649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childSize >= 0) { 5659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Child wanted an exact size. Give as much as possible 5669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecMode = MeasureSpec.EXACTLY; 5679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (maxAvailable >= 0) { 5699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We have a maxmum size in this dimension. 5709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecSize = Math.min(maxAvailable, childSize); 5719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 5729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We can grow in this dimension. 5739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecSize = childSize; 5749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childSize == LayoutParams.FILL_PARENT) { 5769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Child wanted to be as big as possible. Give all availble 5779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // space 5789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecMode = MeasureSpec.EXACTLY; 5799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecSize = maxAvailable; 5809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childSize == LayoutParams.WRAP_CONTENT) { 5819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Child wants to wrap content. Use AT_MOST 5829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to communicate available space if we know 5839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // our max size 5849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (maxAvailable >= 0) { 5859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We have a maxmum size in this dimension. 5869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecMode = MeasureSpec.AT_MOST; 5879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecSize = maxAvailable; 5889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 5899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We can grow in this dimension. Child can be as big as it 5909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // wants 5919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecMode = MeasureSpec.UNSPECIFIED; 5929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childSpecSize = 0; 5939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return MeasureSpec.makeMeasureSpec(childSpecSize, childSpecMode); 5989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 600725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private void positionChildHorizontal(View child, LayoutParams params, int myWidth) { 6019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] rules = params.getRules(); 6029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (params.mLeft < 0 && params.mRight >= 0) { 6049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Right is fixed, but left varies 6059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mLeft = params.mRight - child.getMeasuredWidth(); 6069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (params.mLeft >= 0 && params.mRight < 0) { 6079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Left is fixed, but right varies 6089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mRight = params.mLeft + child.getMeasuredWidth(); 6099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (params.mLeft < 0 && params.mRight < 0) { 6109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Both left and right vary 6119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (0 != rules[CENTER_IN_PARENT] || 0 != rules[CENTER_HORIZONTAL]) { 6129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project centerHorizontal(child, params, myWidth); 6139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 6149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mLeft = mPaddingLeft + params.leftMargin; 6159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mRight = params.mLeft + child.getMeasuredWidth(); 6169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 618725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 619725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 620725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private void positionChildVertical(View child, LayoutParams params, int myHeight) { 621725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy int[] rules = params.getRules(); 6229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (params.mTop < 0 && params.mBottom >= 0) { 6249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Bottom is fixed, but top varies 6259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mTop = params.mBottom - child.getMeasuredHeight(); 6269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (params.mTop >= 0 && params.mBottom < 0) { 6279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Top is fixed, but bottom varies 6289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mBottom = params.mTop + child.getMeasuredHeight(); 6299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (params.mTop < 0 && params.mBottom < 0) { 6309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Both top and bottom vary 6319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (0 != rules[CENTER_IN_PARENT] || 0 != rules[CENTER_VERTICAL]) { 6329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project centerVertical(child, params, myHeight); 6339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 6349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mTop = mPaddingTop + params.topMargin; 6359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mBottom = params.mTop + child.getMeasuredHeight(); 6369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 640725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private void applyHorizontalSizeRules(LayoutParams childParams, int myWidth) { 6419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] rules = childParams.getRules(); 6429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RelativeLayout.LayoutParams anchorParams; 6439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // -1 indicated a "soft requirement" in that direction. For example: 6459066cfe9886ac131c34d59ed0e2d287b0e3c0087The 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 6469066cfe9886ac131c34d59ed0e2d287b0e3c0087The 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 6479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // left=10, right=20 means the left and right ends are both fixed 6489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mLeft = -1; 6499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mRight = -1; 6509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, LEFT_OF); 6529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 6539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mRight = anchorParams.mLeft - (anchorParams.leftMargin + 6549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.rightMargin); 6559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[LEFT_OF] != 0) { 6569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (myWidth >= 0) { 6579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mRight = myWidth - mPaddingRight - childParams.rightMargin; 6589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 6599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME uh oh... 6609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, RIGHT_OF); 6649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 6659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mLeft = anchorParams.mRight + (anchorParams.rightMargin + 6669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.leftMargin); 6679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[RIGHT_OF] != 0) { 6689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mLeft = mPaddingLeft + childParams.leftMargin; 6699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, ALIGN_LEFT); 6729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 6739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mLeft = anchorParams.mLeft + childParams.leftMargin; 6749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[ALIGN_LEFT] != 0) { 6759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mLeft = mPaddingLeft + childParams.leftMargin; 6769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, ALIGN_RIGHT); 6799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 6809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mRight = anchorParams.mRight - childParams.rightMargin; 6819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[ALIGN_RIGHT] != 0) { 6829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (myWidth >= 0) { 6839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mRight = myWidth - mPaddingRight - childParams.rightMargin; 6849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 6859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME uh oh... 6869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (0 != rules[ALIGN_PARENT_LEFT]) { 6909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mLeft = mPaddingLeft + childParams.leftMargin; 6919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (0 != rules[ALIGN_PARENT_RIGHT]) { 6949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (myWidth >= 0) { 6959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mRight = myWidth - mPaddingRight - childParams.rightMargin; 6969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME uh oh... 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 700725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 701725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 702725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private void applyVerticalSizeRules(LayoutParams childParams, int myHeight) { 703725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy int[] rules = childParams.getRules(); 704725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy RelativeLayout.LayoutParams anchorParams; 7059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mTop = -1; 7079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mBottom = -1; 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, ABOVE); 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mBottom = anchorParams.mTop - (anchorParams.topMargin + 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.bottomMargin); 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[ABOVE] != 0) { 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (myHeight >= 0) { 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mBottom = myHeight - mPaddingBottom - childParams.bottomMargin; 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME uh oh... 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, BELOW); 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mTop = anchorParams.mBottom + (anchorParams.bottomMargin + 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.topMargin); 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[BELOW] != 0) { 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mTop = mPaddingTop + childParams.topMargin; 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, ALIGN_TOP); 7309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mTop = anchorParams.mTop + childParams.topMargin; 7329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[ALIGN_TOP] != 0) { 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mTop = mPaddingTop + childParams.topMargin; 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project anchorParams = getRelatedViewParams(rules, ALIGN_BOTTOM); 7379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorParams != null) { 7389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mBottom = anchorParams.mBottom - childParams.bottomMargin; 7399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (childParams.alignWithParent && rules[ALIGN_BOTTOM] != 0) { 7409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (myHeight >= 0) { 7419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mBottom = myHeight - mPaddingBottom - childParams.bottomMargin; 7429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 7439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME uh oh... 7449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (0 != rules[ALIGN_PARENT_TOP]) { 7489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mTop = mPaddingTop + childParams.topMargin; 7499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (0 != rules[ALIGN_PARENT_BOTTOM]) { 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (myHeight >= 0) { 7539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childParams.mBottom = myHeight - mPaddingBottom - childParams.bottomMargin; 7549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 7559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME uh oh... 7569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (rules[ALIGN_BASELINE] != 0) { 7609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mHasBaselineAlignedChild = true; 7619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View getRelatedView(int[] rules, int relation) { 7659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int id = rules[relation]; 7669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (id != 0) { 7679fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy View v = mGraph.mNodes.get(id).view; 7689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v == null) { 7699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 7709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Find the first non-GONE view up the chain 7739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while (v.getVisibility() == View.GONE) { 7749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules = ((LayoutParams) v.getLayoutParams()).getRules(); 7759fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy v = mGraph.mNodes.get((rules[relation])).view; 7769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v == null) { 7779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 7789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return v; 7829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 7859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private LayoutParams getRelatedViewParams(int[] rules, int relation) { 7889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getRelatedView(rules, relation); 7899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) { 7909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewGroup.LayoutParams params = v.getLayoutParams(); 7919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (params instanceof LayoutParams) { 7929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (LayoutParams) v.getLayoutParams(); 7939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 7969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int getRelatedViewBaseline(int[] rules, int relation) { 7999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getRelatedView(rules, relation); 8009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) { 8019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return v.getBaseline(); 8029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return -1; 8049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void centerHorizontal(View child, LayoutParams params, int myWidth) { 8079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childWidth = child.getMeasuredWidth(); 8089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int left = (myWidth - childWidth) / 2; 8099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mLeft = left; 8119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mRight = left + childWidth; 8129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void centerVertical(View child, LayoutParams params, int myHeight) { 8159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childHeight = child.getMeasuredHeight(); 8169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int top = (myHeight - childHeight) / 2; 8179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mTop = top; 8199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project params.mBottom = top + childHeight; 8209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 8239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 8249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The layout has actually already been performed and the positions 8259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // cached. Apply the cached values to the children. 8269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 8279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 8299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 8309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() != GONE) { 8319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RelativeLayout.LayoutParams st = 8329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (RelativeLayout.LayoutParams) child.getLayoutParams(); 8339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.layout(st.mLeft, st.mTop, st.mRight, st.mBottom); 8349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 8409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams generateLayoutParams(AttributeSet attrs) { 8419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new RelativeLayout.LayoutParams(getContext(), attrs); 8429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns a set of layout parameters with a width of 8469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup.LayoutParams#WRAP_CONTENT}, 8479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * a height of {@link android.view.ViewGroup.LayoutParams#WRAP_CONTENT} and no spanning. 8489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 8509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateDefaultLayoutParams() { 8519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT); 8529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Override to allow type-checking of LayoutParams. 8559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 8569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 8579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof RelativeLayout.LayoutParams; 8589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 8619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 8629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(p); 8639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 86575986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov @Override 86675986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) { 86775986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov if (mTopToBottomLeftToRightSet == null) { 86875986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov mTopToBottomLeftToRightSet = new TreeSet<View>(new TopToBottomLeftToRightComparator()); 86975986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 87075986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov 87175986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov // sort children top-to-bottom and left-to-right 87275986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov for (int i = 0, count = getChildCount(); i < count; i++) { 87375986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov mTopToBottomLeftToRightSet.add(getChildAt(i)); 87475986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 87575986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov 87675986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov for (View view : mTopToBottomLeftToRightSet) { 87775986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov if (view.dispatchPopulateAccessibilityEvent(event)) { 87875986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov mTopToBottomLeftToRightSet.clear(); 87975986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov return true; 88075986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 88175986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 88275986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov 88375986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov mTopToBottomLeftToRightSet.clear(); 88475986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov return false; 88575986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 88675986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov 88775986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov /** 88875986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov * Compares two views in left-to-right and top-to-bottom fashion. 88975986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov */ 89075986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov private class TopToBottomLeftToRightComparator implements Comparator<View> { 89175986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov public int compare(View first, View second) { 89275986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov // top - bottom 89375986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov int topDifference = first.getTop() - second.getTop(); 89475986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov if (topDifference != 0) { 89575986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov return topDifference; 89675986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 89775986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov // left - right 89875986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov int leftDifference = first.getLeft() - second.getLeft(); 89975986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov if (leftDifference != 0) { 90075986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov return leftDifference; 90175986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 90275986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov // break tie by height 90375986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov int heightDiference = first.getHeight() - second.getHeight(); 90475986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov if (heightDiference != 0) { 90575986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov return heightDiference; 90675986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 90775986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov // break tie by width 90875986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov int widthDiference = first.getWidth() - second.getWidth(); 90975986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov if (widthDiference != 0) { 91075986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov return widthDiference; 91175986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 91275986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov return 0; 91375986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 91475986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov } 91575986cf9bc57ef11ad70f36fb77fbbf5d63af6ecsvetoslavganov 9169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Per-child layout information associated with RelativeLayout. 9189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 9199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignWithParentIfMissing 9209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_toLeftOf 9219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_toRightOf 9229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_above 9239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_below 9249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignBaseline 9259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignLeft 9269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignTop 9279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignRight 9289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignBottom 9299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignParentLeft 9309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignParentTop 9319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignParentRight 9329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_alignParentBottom 9339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_centerInParent 9349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_centerHorizontal 9359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#RelativeLayout_Layout_layout_centerVertical 9369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class LayoutParams extends ViewGroup.MarginLayoutParams { 938c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.ExportedProperty(resolveId = true, indexMapping = { 939c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ABOVE, to = "above"), 940c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_BASELINE, to = "alignBaseline"), 941c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_BOTTOM, to = "alignBottom"), 942c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_LEFT, to = "alignLeft"), 943c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_PARENT_BOTTOM, to = "alignParentBottom"), 944c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_PARENT_LEFT, to = "alignParentLeft"), 945c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_PARENT_RIGHT, to = "alignParentRight"), 946c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_PARENT_TOP, to = "alignParentTop"), 947c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_RIGHT, to = "alignRight"), 948c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = ALIGN_TOP, to = "alignTop"), 949c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = BELOW, to = "below"), 950c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = CENTER_HORIZONTAL, to = "centerHorizontal"), 951c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = CENTER_IN_PARENT, to = "center"), 952c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = CENTER_VERTICAL, to = "centerVertical"), 953c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = LEFT_OF, to = "leftOf"), 954c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.IntToString(from = RIGHT_OF, to = "rightOf") 955105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project }, mapping = { 956105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project @ViewDebug.IntToString(from = TRUE, to = "true"), 957a1f3e4aef19882b4b81075d9205bd363efe1e66dRomain Guy @ViewDebug.IntToString(from = 0, to = "false/NO_ID") 958105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project }) 9599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int[] mRules = new int[VERB_COUNT]; 960c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project 9619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLeft, mTop, mRight, mBottom; 9629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When true, uses the parent as the anchor if the anchor doesn't exist or if 9659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the anchor's visibility is GONE. 9669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 967c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.ExportedProperty 9689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean alignWithParent; 9699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(Context c, AttributeSet attrs) { 9719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(c, attrs); 9729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = c.obtainStyledAttributes(attrs, 9749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.RelativeLayout_Layout); 9759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] rules = mRules; 9779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int N = a.getIndexCount(); 9799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < N; i++) { 9809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int attr = a.getIndex(i); 9819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (attr) { 9829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignWithParentIfMissing: 9839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project alignWithParent = a.getBoolean(attr, false); 9849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 9859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_toLeftOf: 9869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[LEFT_OF] = a.getResourceId(attr, 0); 9879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 9889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_toRightOf: 9899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[RIGHT_OF] = a.getResourceId(attr, 0); 9909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 9919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_above: 9929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ABOVE] = a.getResourceId(attr, 0); 9939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 9949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_below: 9959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[BELOW] = a.getResourceId(attr, 0); 9969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 9979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignBaseline: 9989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_BASELINE] = a.getResourceId(attr, 0); 9999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 10009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignLeft: 10019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_LEFT] = a.getResourceId(attr, 0); 10029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 10039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignTop: 10049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_TOP] = a.getResourceId(attr, 0); 10059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 10069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignRight: 10079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_RIGHT] = a.getResourceId(attr, 0); 10089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 10099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignBottom: 10109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_BOTTOM] = a.getResourceId(attr, 0); 10119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 10129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignParentLeft: 10139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_PARENT_LEFT] = a.getBoolean(attr, false) ? TRUE : 0; 10149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 10159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignParentTop: 10169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_PARENT_TOP] = a.getBoolean(attr, false) ? TRUE : 0; 10179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 10189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignParentRight: 10199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_PARENT_RIGHT] = a.getBoolean(attr, false) ? TRUE : 0; 10209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 10219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_alignParentBottom: 10229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[ALIGN_PARENT_BOTTOM] = a.getBoolean(attr, false) ? TRUE : 0; 10239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 10249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_centerInParent: 10259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[CENTER_IN_PARENT] = a.getBoolean(attr, false) ? TRUE : 0; 10269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 10279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_centerHorizontal: 10289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[CENTER_HORIZONTAL] = a.getBoolean(attr, false) ? TRUE : 0; 10299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 10309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case com.android.internal.R.styleable.RelativeLayout_Layout_layout_centerVertical: 10319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rules[CENTER_VERTICAL] = a.getBoolean(attr, false) ? TRUE : 0; 10329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 10339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 10379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h) { 10409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 10419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 10459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams source) { 10479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 10489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 10529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.MarginLayoutParams source) { 10549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 10559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 10589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String debug(String output) { 10599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return output + "ViewGroup.LayoutParams={ width=" + sizeToString(width) + 10609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ", height=" + sizeToString(height) + " }"; 10619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Adds a layout rule to be interpreted by the RelativeLayout. This 10659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * method should only be used for constraints that don't refer to another sibling 10669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (e.g., CENTER_IN_PARENT) or take a boolean value ({@link RelativeLayout#TRUE} 10679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * for true or - for false). To specify a verb that takes a subject, use 10689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #addRule(int, int)} instead. 10699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param verb One of the verbs defined by 10719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.RelativeLayout RelativeLayout}, such as 10729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * ALIGN_WITH_PARENT_LEFT. 10739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #addRule(int, int) 10749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addRule(int verb) { 10769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRules[verb] = TRUE; 10779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Adds a layout rule to be interpreted by the RelativeLayout. Use this for 10819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * verbs that take a target, such as a sibling (ALIGN_RIGHT) or a boolean 10829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * value (VISIBLE). 10839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param verb One of the verbs defined by 10859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.RelativeLayout RelativeLayout}, such as 10869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * ALIGN_WITH_PARENT_LEFT. 10879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param anchor The id of another view to use as an anchor, 10889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * or a boolean value(represented as {@link RelativeLayout#TRUE}) 10899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * for true or 0 for false). For verbs that don't refer to another sibling 10909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (for example, ALIGN_WITH_PARENT_BOTTOM) just use -1. 10919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #addRule(int) 10929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addRule(int verb, int anchor) { 10949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRules[verb] = anchor; 10959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Retrieves a complete list of all supported rules, where the index is the rule 10999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * verb, and the element value is the value specified, or "false" if it was never 11009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * set. 11019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the supported rules 11039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #addRule(int, int) 11049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int[] getRules() { 11069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mRules; 11079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1109725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1110725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private static class DependencyGraph { 1111725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1112725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * List of nodes in the graph. Each node is identified by its 1113725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * view id (see View#getId()). 1114725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1115725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private SparseArray<Node> mNodes = new SparseArray<Node>(); 1116725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1117725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1118725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * Temporary data structure used to build the list of roots 1119725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * for this graph. 1120725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1121725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private LinkedList<Node> mRoots = new LinkedList<Node>(); 1122725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1123725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1124725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * Clears the graph. 1125725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1126725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy void clear() { 1127725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final SparseArray<Node> nodes = mNodes; 1128725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final int count = nodes.size(); 1129725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1130725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 1131725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy nodes.valueAt(i).release(); 1132725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1133725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy nodes.clear(); 1134725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1135725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy mRoots.clear(); 1136725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1137725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1138725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1139725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * Adds a view to the graph. 1140725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * 1141725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * @param view The view to be added as a node to the graph. 1142725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1143725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy void add(View view) { 11449fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy mNodes.put(view.getId(), Node.acquire(view)); 1145725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1146725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1147725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1148725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * Builds a sorted list of views. The sorting order depends on the dependencies 1149725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * between the view. For instance, if view C needs view A to be processed first 1150725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * and view A needs view B to be processed first, the dependency graph 1151725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * is: B -> A -> C. The sorted array will contain views B, A and C in this order. 1152725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * 1153725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * @param sorted The sorted list of views. The length of this array must 1154725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * be equal to getChildCount(). 1155725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * @param rules The list of rules to take into account. 1156725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1157725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy void getSortedViews(View[] sorted, int... rules) { 1158725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final LinkedList<Node> roots = findRoots(rules); 1159725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy int index = 0; 1160725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1161725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy while (roots.size() > 0) { 1162725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final Node node = roots.removeFirst(); 1163725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final View view = node.view; 1164725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final int key = view.getId(); 1165725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1166725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy sorted[index++] = view; 1167725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1168725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final HashSet<Node> dependents = node.dependents; 1169725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (Node dependent : dependents) { 1170725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final SparseArray<Node> dependencies = dependent.dependencies; 1171725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1172725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy dependencies.remove(key); 1173725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (dependencies.size() == 0) { 1174725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy roots.add(dependent); 1175725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1176725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1177725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1178725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1179725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (index < sorted.length) { 1180725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy throw new IllegalStateException("Circular dependencies cannot exist" 1181725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy + " in RelativeLayout"); 1182725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1183725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1184725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1185725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1186725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * Finds the roots of the graph. A root is a node with no dependency and 1187725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * with [0..n] dependents. 1188725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * 1189725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * @param rulesFilter The list of rules to consider when building the 1190725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * dependencies 1191725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * 1192725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * @return A list of node, each being a root of the graph 1193725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1194725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private LinkedList<Node> findRoots(int[] rulesFilter) { 1195725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final SparseArray<Node> nodes = mNodes; 1196725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final int count = nodes.size(); 1197725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1198725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // Find roots can be invoked several times, so make sure to clear 1199725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // all dependents and dependencies before running the algorithm 1200725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 1201725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final Node node = nodes.valueAt(i); 1202725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy node.dependents.clear(); 1203725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy node.dependencies.clear(); 1204725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1205725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1206725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // Builds up the dependents and dependencies for each node of the graph 1207725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 1208725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final Node node = nodes.valueAt(i); 1209725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1210725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final LayoutParams layoutParams = (LayoutParams) node.view.getLayoutParams(); 1211725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final int[] rules = layoutParams.mRules; 1212725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final int rulesCount = rulesFilter.length; 1213725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1214725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // Look only the the rules passed in parameter, this way we build only the 1215725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // dependencies for a specific set of rules 1216725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int j = 0; j < rulesCount; j++) { 1217725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final int rule = rules[rulesFilter[j]]; 1218725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (rule > 0) { 1219725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // The node this node depends on 1220725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final Node dependency = nodes.get(rule); 1221725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (dependency == node) { 1222725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy throw new IllegalStateException("A view cannot have a dependency" + 1223725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy " on itself"); 1224725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1225725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // Add the current node as a dependent 1226725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy dependency.dependents.add(node); 1227725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // Add a dependency to the current node 1228725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy node.dependencies.put(rule, dependency); 1229725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1230725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1231725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1232725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1233725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final LinkedList<Node> roots = mRoots; 1234725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy roots.clear(); 1235725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1236725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy // Finds all the roots in the graph: all nodes with no dependencies 1237725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (int i = 0; i < count; i++) { 1238725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final Node node = nodes.valueAt(i); 1239725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (node.dependencies.size() == 0) roots.add(node); 1240725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1241725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1242725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy return roots; 1243725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1244725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1245725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1246725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * Prints the dependency graph for the specified rules. 1247725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * 1248725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * @param resources The context's resources to print the ids. 1249725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * @param rules The list of rules to take into account. 1250725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1251725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy void log(Resources resources, int... rules) { 1252725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final LinkedList<Node> roots = findRoots(rules); 1253725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (Node node : roots) { 1254725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy printNode(resources, node); 1255725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1256725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1257725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 12589fffa1eb40f5121866cb8e547b8bbd7eafee5281Romain Guy static void printViewId(Resources resources, View view) { 1259725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (view.getId() != View.NO_ID) { 1260725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy d(LOG_TAG, resources.getResourceEntryName(view.getId())); 1261725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } else { 1262725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy d(LOG_TAG, "NO_ID"); 1263725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1264725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1265725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1266725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private static void appendViewId(Resources resources, Node node, StringBuilder buffer) { 1267725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (node.view.getId() != View.NO_ID) { 1268725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy buffer.append(resources.getResourceEntryName(node.view.getId())); 1269725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } else { 1270725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy buffer.append("NO_ID"); 1271725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1272725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1273725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1274725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private static void printNode(Resources resources, Node node) { 1275725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (node.dependents.size() == 0) { 1276725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy printViewId(resources, node.view); 1277725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } else { 1278725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (Node dependent : node.dependents) { 1279725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy StringBuilder buffer = new StringBuilder(); 1280725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy appendViewId(resources, node, buffer); 1281725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy printdependents(resources, dependent, buffer); 1282725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1283725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1284725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1285725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1286725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private static void printdependents(Resources resources, Node node, StringBuilder buffer) { 1287725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy buffer.append(" -> "); 1288725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy appendViewId(resources, node, buffer); 1289725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1290725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy if (node.dependents.size() == 0) { 1291725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy d(LOG_TAG, buffer.toString()); 1292725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } else { 1293725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy for (Node dependent : node.dependents) { 1294725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy StringBuilder subBuffer = new StringBuilder(buffer); 1295725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy printdependents(resources, dependent, subBuffer); 1296725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1297725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1298725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1299725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1300725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1301725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * A node in the dependency graph. A node is a view, its list of dependencies 1302725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * and its list of dependents. 1303725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * 1304725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * A node with no dependent is considered a root of the graph. 1305725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1306725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy static class Node implements Poolable<Node> { 1307725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1308725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * The view representing this node in the layout. 1309725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1310725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy View view; 1311725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1312725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1313725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * The list of dependents for this node; a dependent is a node 1314725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * that needs this node to be processed first. 1315725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1316725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final HashSet<Node> dependents = new HashSet<Node>(); 1317725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1318725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /** 1319725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * The list of dependencies for this node. 1320725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1321725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final SparseArray<Node> dependencies = new SparseArray<Node>(); 1322725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1323725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /* 1324725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * START POOL IMPLEMENTATION 1325725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1326725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private static final int POOL_LIMIT = 12; 1327725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private static final Pool<Node> sPool = Pools.synchronizedPool( 1328725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy Pools.finitePool(new PoolableManager<Node>() { 1329725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy public Node newInstance() { 1330725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy return new Node(); 1331725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1332725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1333725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy public void onAcquired(Node element) { 1334725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1335725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1336725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy public void onReleased(Node element) { 1337725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1338725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy }, POOL_LIMIT) 1339725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy ); 1340725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1341725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy private Node mNext; 1342725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1343725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy public void setNextPoolable(Node element) { 1344725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy mNext = element; 1345725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1346725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1347725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy public Node getNextPoolable() { 1348725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy return mNext; 1349725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1350725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1351725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy static Node acquire(View view) { 1352725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy final Node node = sPool.acquire(); 1353725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy node.view = view; 1354725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1355725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy return node; 1356725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1357725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1358725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy void release() { 1359725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy view = null; 1360725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy dependents.clear(); 1361725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy dependencies.clear(); 1362725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy 1363725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy sPool.release(this); 1364725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1365725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy /* 1366725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy * END POOL IMPLEMENTATION 1367725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy */ 1368725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 1369725015a9cda8f5bfcf05dff7d2b0ebbd799bb577Romain Guy } 13709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1371