CompoundButton.java revision 9066cfe9886ac131c34d59ed0e2d287b0e3c0087
19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2007 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 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport com.android.internal.R; 209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.Context; 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.res.TypedArray; 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.Canvas; 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.drawable.Drawable; 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcel; 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcelable; 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.AttributeSet; 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.Gravity; 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p> 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A button with two states, checked and unchecked. When the button is pressed 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * or clicked, the state changes automatically. 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * </p> 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p><strong>XML attributes</strong></p> 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p> 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See {@link android.R.styleable#CompoundButton 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * CompoundButton Attributes}, {@link android.R.styleable#Button Button 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Attributes}, {@link android.R.styleable#TextView TextView Attributes}, {@link 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * android.R.styleable#View View Attributes} 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * </p> 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic abstract class CompoundButton extends Button implements Checkable { 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mChecked; 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mButtonResource; 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mBroadcasting; 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Drawable mButtonDrawable; 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private OnCheckedChangeListener mOnCheckedChangeListener; 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private OnCheckedChangeListener mOnCheckedChangeWidgetListener; 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int[] CHECKED_STATE_SET = { 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project R.attr.state_checked 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CompoundButton(Context context) { 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(context, null); 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CompoundButton(Context context, AttributeSet attrs) { 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(context, attrs, 0); 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CompoundButton(Context context, AttributeSet attrs, int defStyle) { 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, attrs, defStyle); 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project context.obtainStyledAttributes( 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project attrs, com.android.internal.R.styleable.CompoundButton, defStyle, 0); 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = a.getDrawable(com.android.internal.R.styleable.CompoundButton_button); 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null) { 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setButtonDrawable(d); 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean checked = a 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project .getBoolean(com.android.internal.R.styleable.CompoundButton_checked, false); 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChecked(checked); 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void toggle() { 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChecked(!mChecked); 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean performClick() { 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * XXX: These are tiny, need some surrounding 'expanded touch area', 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which will need to be implemented in Button if we only override 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * performClick() 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* When clicked, toggle the state */ 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project toggle(); 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.performClick(); 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isChecked() { 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mChecked; 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>Changes the checked state of this button.</p> 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param checked true to check the button, false to uncheck it 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setChecked(boolean checked) { 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mChecked != checked) { 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mChecked = checked; 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project refreshDrawableState(); 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Avoid infinite recursions if setChecked() is called from a listener 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mBroadcasting) { 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mBroadcasting = true; 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnCheckedChangeListener != null) { 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnCheckedChangeListener.onCheckedChanged(this, mChecked); 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnCheckedChangeWidgetListener != null) { 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnCheckedChangeWidgetListener.onCheckedChanged(this, mChecked); 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mBroadcasting = false; 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Register a callback to be invoked when the checked state of this button 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * changes. 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param listener the callback to call on checked state change 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setOnCheckedChangeListener(OnCheckedChangeListener listener) { 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnCheckedChangeListener = listener; 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Register a callback to be invoked when the checked state of this button 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * changes. This callback is used for internal purpose only. 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param listener the callback to call on checked state change 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void setOnCheckedChangeWidgetListener(OnCheckedChangeListener listener) { 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnCheckedChangeWidgetListener = listener; 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Interface definition for a callback to be invoked when the checked state 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of a compound button changed. 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static interface OnCheckedChangeListener { 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Called when the checked state of a compound button has changed. 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param buttonView The compound button view whose state has changed. 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param isChecked The new checked state of buttonView. 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void onCheckedChanged(CompoundButton buttonView, boolean isChecked); 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the background to a given Drawable, identified by its resource id. 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param resid the resource id of the drawable to use as the background 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setButtonDrawable(int resid) { 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (resid != 0 && resid == mButtonResource) { 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mButtonResource = resid; 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = null; 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mButtonResource != 0) { 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project d = getResources().getDrawable(mButtonResource); 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setButtonDrawable(d); 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the background to a given Drawable 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param d The Drawable to use as the background 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setButtonDrawable(Drawable d) { 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null) { 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mButtonDrawable != null) { 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mButtonDrawable.setCallback(null); 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleDrawable(mButtonDrawable); 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project d.setCallback(this); 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project d.setState(getDrawableState()); 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project d.setVisible(getVisibility() == VISIBLE, false); 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mButtonDrawable = d; 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mButtonDrawable.setState(null); 2019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setMinHeight(mButtonDrawable.getIntrinsicHeight()); 2029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project refreshDrawableState(); 2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDraw(Canvas canvas) { 2099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDraw(canvas); 2109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable buttonDrawable = mButtonDrawable; 2129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (buttonDrawable != null) { 2139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int verticalGravity = getGravity() & Gravity.VERTICAL_GRAVITY_MASK; 2149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = buttonDrawable.getIntrinsicHeight(); 2159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int y = 0; 2179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (verticalGravity) { 2199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case Gravity.BOTTOM: 2209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project y = getHeight() - height; 2219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 2229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case Gravity.CENTER_VERTICAL: 2239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project y = (getHeight() - height) / 2; 2249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 2259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project buttonDrawable.setBounds(0, y, buttonDrawable.getIntrinsicWidth(), y + height); 2289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project buttonDrawable.draw(canvas); 2299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int[] onCreateDrawableState(int extraSpace) { 2349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] drawableState = super.onCreateDrawableState(extraSpace + 1); 2359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isChecked()) { 2369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mergeDrawableStates(drawableState, CHECKED_STATE_SET); 2379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return drawableState; 2399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void drawableStateChanged() { 2439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.drawableStateChanged(); 2449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mButtonDrawable != null) { 2469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] myDrawableState = getDrawableState(); 2479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Set the state of the Drawable 2499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mButtonDrawable.setState(myDrawableState); 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean verifyDrawable(Drawable who) { 2579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.verifyDrawable(who) || who == mButtonDrawable; 2589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static class SavedState extends BaseSavedState { 2619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean checked; 2629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link CompoundButton#onSaveInstanceState()} 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState(Parcelable superState) { 2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(superState); 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link #CREATOR} 2729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private SavedState(Parcel in) { 2749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(in); 2759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checked = (Boolean)in.readValue(null); 2769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel out, int flags) { 2809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.writeToParcel(out, flags); 2819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeValue(checked); 2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String toString() { 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "CompoundButton.SavedState{" 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + Integer.toHexString(System.identityHashCode(this)) 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " checked=" + checked + "}"; 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<SavedState> CREATOR 2929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<SavedState>() { 2939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState createFromParcel(Parcel in) { 2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState(in); 2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState[] newArray(int size) { 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState[size]; 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Parcelable onSaveInstanceState() { 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Force our ancestor class to save its state 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFreezesText(true); 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcelable superState = super.onSaveInstanceState(); 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = new SavedState(superState); 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.checked = isChecked(); 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ss; 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onRestoreInstanceState(Parcelable state) { 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = (SavedState) state; 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onRestoreInstanceState(ss.getSuperState()); 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChecked(ss.checked); 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 324