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.graphics.drawable; 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport org.xmlpull.v1.XmlPullParser; 209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport org.xmlpull.v1.XmlPullParserException; 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.io.IOException; 23079e23575024e103358c982152afb7a720ae1a8aDianne Hackbornimport java.util.Arrays; 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.res.Resources; 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.res.TypedArray; 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.AttributeSet; 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.StateSet; 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Lets you assign a number of graphic images to a single Drawable and swap out the visible item by a string 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * ID value. 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p/> 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>It can be defined in an XML file with the <code><selector></code> element. 35dfe5c204403bc56c29bb36410574eab8b1950417Scott Main * Each state Drawable is defined in a nested <code><item></code> element. For more 36dfe5c204403bc56c29bb36410574eab8b1950417Scott Main * information, see the guide to <a 37dfe5c204403bc56c29bb36410574eab8b1950417Scott Main * href="{@docRoot}guide/topics/resources/drawable-resource.html">Drawable Resources</a>.</p> 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#StateListDrawable_visible 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#StateListDrawable_variablePadding 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#StateListDrawable_constantSize 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#DrawableStates_state_focused 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#DrawableStates_state_window_focused 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#DrawableStates_state_enabled 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#DrawableStates_state_checkable 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#DrawableStates_state_checked 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#DrawableStates_state_selected 48079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * @attr ref android.R.styleable#DrawableStates_state_activated 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#DrawableStates_state_active 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#DrawableStates_state_single 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#DrawableStates_state_first 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#DrawableStates_state_middle 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#DrawableStates_state_last 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#DrawableStates_state_pressed 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic class StateListDrawable extends DrawableContainer { 57079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn private static final boolean DEBUG = false; 58079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn private static final String TAG = "StateListDrawable"; 59079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 60211db4a2874f1a2d0e7a8cb8d33e81fa08801763Mike Reed /** 61211db4a2874f1a2d0e7a8cb8d33e81fa08801763Mike Reed * To be proper, we should have a getter for dither (and alpha, etc.) 62211db4a2874f1a2d0e7a8cb8d33e81fa08801763Mike Reed * so that proxy classes like this can save/restore their delegates' 63211db4a2874f1a2d0e7a8cb8d33e81fa08801763Mike Reed * values, but we don't have getters. Since we do have setters 64211db4a2874f1a2d0e7a8cb8d33e81fa08801763Mike Reed * (e.g. setDither), which this proxy forwards on, we have to have some 65211db4a2874f1a2d0e7a8cb8d33e81fa08801763Mike Reed * default/initial setting. 66211db4a2874f1a2d0e7a8cb8d33e81fa08801763Mike Reed * 67211db4a2874f1a2d0e7a8cb8d33e81fa08801763Mike Reed * The initial setting for dither is now true, since it almost always seems 68211db4a2874f1a2d0e7a8cb8d33e81fa08801763Mike Reed * to improve the quality at negligible cost. 69211db4a2874f1a2d0e7a8cb8d33e81fa08801763Mike Reed */ 70211db4a2874f1a2d0e7a8cb8d33e81fa08801763Mike Reed private static final boolean DEFAULT_DITHER = true; 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final StateListState mStateListState; 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mMutated; 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public StateListDrawable() { 75c2974809373697147cbe5754835cc871fb93aef1Dianne Hackborn this(null, null); 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Add a new image/string ID to the set of images. 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stateSet - An array of resource Ids to associate with the image. 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Switch to this image by calling setState(). 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param drawable -The image to show. 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addState(int[] stateSet, Drawable drawable) { 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (drawable != null) { 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStateListState.addStateSet(stateSet, drawable); 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // in case the new state matches our current state... 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project onStateChange(getState()); 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isStateful() { 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean onStateChange(int[] stateSet) { 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int idx = mStateListState.indexOfStateSet(stateSet); 101079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (DEBUG) android.util.Log.i(TAG, "onStateChange " + this + " states " 102079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn + Arrays.toString(stateSet) + " found " + idx); 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (idx < 0) { 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project idx = mStateListState.indexOfStateSet(StateSet.WILD_CARD); 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectDrawable(idx)) { 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onStateChange(stateSet); 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void inflate(Resources r, XmlPullParser parser, 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AttributeSet attrs) 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throws XmlPullParserException, IOException { 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = r.obtainAttributes(attrs, 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.StateListDrawable); 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.inflateWithAttributes(r, parser, a, 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.StateListDrawable_visible); 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStateListState.setVariablePadding(a.getBoolean( 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.StateListDrawable_variablePadding, false)); 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStateListState.setConstantSize(a.getBoolean( 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.StateListDrawable_constantSize, false)); 127079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mStateListState.setEnterFadeDuration(a.getInt( 128079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn com.android.internal.R.styleable.StateListDrawable_enterFadeDuration, 0)); 129079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mStateListState.setExitFadeDuration(a.getInt( 130079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn com.android.internal.R.styleable.StateListDrawable_exitFadeDuration, 0)); 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 132211db4a2874f1a2d0e7a8cb8d33e81fa08801763Mike Reed setDither(a.getBoolean(com.android.internal.R.styleable.StateListDrawable_dither, 133211db4a2874f1a2d0e7a8cb8d33e81fa08801763Mike Reed DEFAULT_DITHER)); 1346afa16feb32d44c4977b3eb6007246a99f22fdbfJeff Sharkey 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int type; 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int innerDepth = parser.getDepth() + 1; 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int depth; 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while ((type = parser.next()) != XmlPullParser.END_DOCUMENT 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project && ((depth = parser.getDepth()) >= innerDepth 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project || type != XmlPullParser.END_TAG)) { 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (type != XmlPullParser.START_TAG) { 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (depth > innerDepth || !parser.getName().equals("item")) { 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int drawableRes = 0; 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int i; 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int j = 0; 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int numAttrs = attrs.getAttributeCount(); 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] states = new int[numAttrs]; 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (i = 0; i < numAttrs; i++) { 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int stateResId = attrs.getAttributeNameResource(i); 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (stateResId == 0) break; 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (stateResId == com.android.internal.R.attr.drawable) { 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawableRes = attrs.getAttributeResourceValue(i, 0); 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project states[j++] = attrs.getAttributeBooleanValue(i, false) 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ? stateResId 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project : -stateResId; 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project states = StateSet.trimStateSet(states, j); 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable dr; 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (drawableRes != 0) { 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dr = r.getDrawable(drawableRes); 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while ((type = parser.next()) == XmlPullParser.TEXT) { 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (type != XmlPullParser.START_TAG) { 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new XmlPullParserException( 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project parser.getPositionDescription() 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + ": <item> tag requires a 'drawable' attribute or " 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "child tag defining a drawable"); 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dr = Drawable.createFromXmlInner(r, parser, attrs); 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStateListState.addStateSet(states, dr); 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project onStateChange(getState()); 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project StateListState getStateListState() { 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStateListState; 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Gets the number of states contained in this drawable. 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of states contained in this drawable. 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide pending API council 2019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getStateSet(int) 2029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getStateDrawable(int) 2039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getStateCount() { 2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStateListState.getChildCount(); 2069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Gets the state set at an index. 2109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param index The index of the state set. 2129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The state set at the index. 2139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide pending API council 2149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getStateCount() 2159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getStateDrawable(int) 2169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int[] getStateSet(int index) { 2189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStateListState.mStateSets[index]; 2199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Gets the drawable at an index. 2239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param index The index of the drawable. 2259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The drawable at the index. 2269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide pending API council 2279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getStateCount() 2289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getStateSet(int) 2299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable getStateDrawable(int index) { 2319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStateListState.getChildren()[index]; 2329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Gets the index of the drawable with the provided state set. 2369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stateSet the state set to look up 2389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the index of the provided state set, or -1 if not found 2399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide pending API council 2409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getStateDrawable(int) 2419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getStateSet(int) 2429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getStateDrawableIndex(int[] stateSet) { 2449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStateListState.indexOfStateSet(stateSet); 2459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable mutate() { 2499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mMutated && super.mutate() == this) { 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[][] sets = mStateListState.mStateSets; 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = sets.length; 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStateListState.mStateSets = new int[count][]; 2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 2542b95c2413838c2e2b127ebab8fb4fead7d52e460Jeff Sharkey final int[] set = sets[i]; 2552b95c2413838c2e2b127ebab8fb4fead7d52e460Jeff Sharkey if (set != null) { 2562b95c2413838c2e2b127ebab8fb4fead7d52e460Jeff Sharkey mStateListState.mStateSets[i] = set.clone(); 2572b95c2413838c2e2b127ebab8fb4fead7d52e460Jeff Sharkey } 2589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMutated = true; 2609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return this; 2629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 264fc4947491f785600b8770112fa1d19ece06d42f9Dianne Hackborn /** @hide */ 2650af4b8b0c8b038bca9b4f60eb81f71e186f471ceFabrice Di Meglio @Override 2660af4b8b0c8b038bca9b4f60eb81f71e186f471ceFabrice Di Meglio public void setLayoutDirection(int layoutDirection) { 2670af4b8b0c8b038bca9b4f60eb81f71e186f471ceFabrice Di Meglio final int numStates = getStateCount(); 2680af4b8b0c8b038bca9b4f60eb81f71e186f471ceFabrice Di Meglio for (int i = 0; i < numStates; i++) { 2690af4b8b0c8b038bca9b4f60eb81f71e186f471ceFabrice Di Meglio getStateDrawable(i).setLayoutDirection(layoutDirection); 2700af4b8b0c8b038bca9b4f60eb81f71e186f471ceFabrice Di Meglio } 2710af4b8b0c8b038bca9b4f60eb81f71e186f471ceFabrice Di Meglio super.setLayoutDirection(layoutDirection); 2720af4b8b0c8b038bca9b4f60eb81f71e186f471ceFabrice Di Meglio } 2730af4b8b0c8b038bca9b4f60eb81f71e186f471ceFabrice Di Meglio 2749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final class StateListState extends DrawableContainerState { 275079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int[][] mStateSets; 2769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 277c2974809373697147cbe5754835cc871fb93aef1Dianne Hackborn StateListState(StateListState orig, StateListDrawable owner, Resources res) { 278c2974809373697147cbe5754835cc871fb93aef1Dianne Hackborn super(orig, owner, res); 2799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (orig != null) { 2819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStateSets = orig.mStateSets; 2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 2839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStateSets = new int[getChildren().length][]; 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int addStateSet(int[] stateSet, Drawable drawable) { 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int pos = addChild(drawable); 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStateSets[pos] = stateSet; 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return pos; 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int indexOfStateSet(int[] stateSet) { 2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[][] stateSets = mStateSets; 2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int N = getChildCount(); 2969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < N; i++) { 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (StateSet.stateSetMatches(stateSets[i], stateSet)) { 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return i; 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return -1; 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable newDrawable() { 306c2974809373697147cbe5754835cc871fb93aef1Dianne Hackborn return new StateListDrawable(this, null); 307c2974809373697147cbe5754835cc871fb93aef1Dianne Hackborn } 308c2974809373697147cbe5754835cc871fb93aef1Dianne Hackborn 309c2974809373697147cbe5754835cc871fb93aef1Dianne Hackborn @Override 310c2974809373697147cbe5754835cc871fb93aef1Dianne Hackborn public Drawable newDrawable(Resources res) { 311c2974809373697147cbe5754835cc871fb93aef1Dianne Hackborn return new StateListDrawable(this, res); 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void growArray(int oldSize, int newSize) { 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.growArray(oldSize, newSize); 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[][] newStateSets = new int[newSize][]; 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(mStateSets, 0, newStateSets, 0, oldSize); 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStateSets = newStateSets; 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 323c2974809373697147cbe5754835cc871fb93aef1Dianne Hackborn private StateListDrawable(StateListState state, Resources res) { 324c2974809373697147cbe5754835cc871fb93aef1Dianne Hackborn StateListState as = new StateListState(state, this, res); 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStateListState = as; 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setConstantState(as); 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project onStateChange(getState()); 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 331