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 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.util.AttributeSet; 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.View; 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewGroup; 268a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganovimport android.view.accessibility.AccessibilityEvent; 278a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganovimport android.view.accessibility.AccessibilityNodeInfo; 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>This class is used to create a multiple-exclusion scope for a set of radio 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * buttons. Checking one radio button that belongs to a radio group unchecks 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * any previously checked radio button within the same group.</p> 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>Intially, all of the radio buttons are unchecked. While it is not possible 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to uncheck a particular radio button, the radio group can be cleared to 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * remove the checked state.</p> 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>The selection is identified by the unique id of the radio button as defined 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the XML layout file.</p> 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p><strong>XML Attributes</strong></p> 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>See {@link android.R.styleable#RadioGroup RadioGroup Attributes}, 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.R.styleable#LinearLayout LinearLayout Attributes}, 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.R.styleable#ViewGroup ViewGroup Attributes}, 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.R.styleable#View View Attributes}</p> 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>Also see 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.LinearLayout.LayoutParams LinearLayout.LayoutParams} 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * for layout attributes.</p> 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see RadioButton 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic class RadioGroup extends LinearLayout { 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // holds the checked id; the selection is empty by default 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mCheckedId = -1; 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // tracks children radio buttons checked state 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CompoundButton.OnCheckedChangeListener mChildOnCheckedChangeListener; 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // when true, mOnCheckedChangeListener discards events 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mProtectFromCheckedChange = false; 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private OnCheckedChangeListener mOnCheckedChangeListener; 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private PassThroughHierarchyChangeListener mPassThroughListener; 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public RadioGroup(Context context) { 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context); 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setOrientation(VERTICAL); 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project init(); 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public RadioGroup(Context context, AttributeSet attrs) { 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, attrs); 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // retrieve selected radio button as requested by the user in the 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // XML layout file 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray attributes = context.obtainStyledAttributes( 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project attrs, com.android.internal.R.styleable.RadioGroup, com.android.internal.R.attr.radioButtonStyle, 0); 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int value = attributes.getResourceId(R.styleable.RadioGroup_checkedButton, View.NO_ID); 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (value != View.NO_ID) { 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCheckedId = value; 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int index = attributes.getInt(com.android.internal.R.styleable.RadioGroup_orientation, VERTICAL); 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setOrientation(index); 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project attributes.recycle(); 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project init(); 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void init() { 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mChildOnCheckedChangeListener = new CheckedStateTracker(); 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPassThroughListener = new PassThroughHierarchyChangeListener(); 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.setOnHierarchyChangeListener(mPassThroughListener); 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setOnHierarchyChangeListener(OnHierarchyChangeListener listener) { 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the user listener is delegated to our pass-through listener 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPassThroughListener.mOnHierarchyChangeListener = listener; 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onFinishInflate() { 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onFinishInflate(); 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // checks the appropriate radio button as requested in the XML file 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCheckedId != -1) { 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mProtectFromCheckedChange = true; 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setCheckedStateForView(mCheckedId, true); 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mProtectFromCheckedChange = false; 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setCheckedId(mCheckedId); 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addView(View child, int index, ViewGroup.LayoutParams params) { 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child instanceof RadioButton) { 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final RadioButton button = (RadioButton) child; 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (button.isChecked()) { 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mProtectFromCheckedChange = true; 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCheckedId != -1) { 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setCheckedStateForView(mCheckedId, false); 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mProtectFromCheckedChange = false; 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setCheckedId(button.getId()); 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.addView(child, index, params); 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>Sets the selection to the radio button whose identifier is passed in 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * parameter. Using -1 as the selection identifier clears the selection; 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * such an operation is equivalent to invoking {@link #clearCheck()}.</p> 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id the unique id of the radio button to select in this group 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getCheckedRadioButtonId() 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #clearCheck() 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void check(int id) { 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // don't even bother 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (id != -1 && (id == mCheckedId)) { 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCheckedId != -1) { 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setCheckedStateForView(mCheckedId, false); 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (id != -1) { 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setCheckedStateForView(id, true); 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setCheckedId(id); 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void setCheckedId(int id) { 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCheckedId = id; 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnCheckedChangeListener != null) { 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnCheckedChangeListener.onCheckedChanged(this, mCheckedId); 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void setCheckedStateForView(int viewId, boolean checked) { 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View checkedView = findViewById(viewId); 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (checkedView != null && checkedView instanceof RadioButton) { 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((RadioButton) checkedView).setChecked(checked); 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>Returns the identifier of the selected radio button in this group. 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Upon empty selection, the returned value is -1.</p> 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the unique id of the selected radio button in this group 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #check(int) 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #clearCheck() 193aac722a9c0d199c79ae8ce2dd3cce113f01c30b7Philip Milne * 194aac722a9c0d199c79ae8ce2dd3cce113f01c30b7Philip Milne * @attr ref android.R.styleable#RadioGroup_checkedButton 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCheckedRadioButtonId() { 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCheckedId; 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>Clears the selection. When the selection is cleared, no radio button 2029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in this group is selected and {@link #getCheckedRadioButtonId()} returns 2039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * null.</p> 2049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #check(int) 2069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getCheckedRadioButtonId() 2079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void clearCheck() { 2099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project check(-1); 2109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>Register a callback to be invoked when the checked radio button 2149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * changes in this group.</p> 2159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param listener the callback to call on checked state change 2179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setOnCheckedChangeListener(OnCheckedChangeListener listener) { 2199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnCheckedChangeListener = listener; 2209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 2249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams generateLayoutParams(AttributeSet attrs) { 2279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new RadioGroup.LayoutParams(getContext(), attrs); 2289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 2329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 2359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof RadioGroup.LayoutParams; 2369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected LinearLayout.LayoutParams generateDefaultLayoutParams() { 2409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT); 2419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2438a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 2448a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityEvent(AccessibilityEvent event) { 2458a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityEvent(event); 2468a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov event.setClassName(RadioGroup.class.getName()); 2478a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 2488a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 2498a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 2508a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { 2518a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityNodeInfo(info); 2528a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov info.setClassName(RadioGroup.class.getName()); 2538a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 2548a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>This set of layout parameters defaults the width and the height of 2579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the children to {@link #WRAP_CONTENT} when they are not specified in the 2589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * XML file. Otherwise, this class ussed the value read from the XML file.</p> 2599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>See 2619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.R.styleable#LinearLayout_Layout LinearLayout Attributes} 2629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * for a list of all child view attributes that this class supports.</p> 2639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class LayoutParams extends LinearLayout.LayoutParams { 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(Context c, AttributeSet attrs) { 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(c, attrs); 2719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 2759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h) { 2779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 2789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h, float initWeight) { 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h, initWeight); 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams p) { 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(p); 2929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 2969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(MarginLayoutParams source) { 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 300579e14016c4a972e70cd2bd0c6d89bbd7e9e941cDave Burke 301579e14016c4a972e70cd2bd0c6d89bbd7e9e941cDave Burke /** 302579e14016c4a972e70cd2bd0c6d89bbd7e9e941cDave Burke * <p>Fixes the child's width to 303579e14016c4a972e70cd2bd0c6d89bbd7e9e941cDave Burke * {@link android.view.ViewGroup.LayoutParams#WRAP_CONTENT} and the child's 304579e14016c4a972e70cd2bd0c6d89bbd7e9e941cDave Burke * height to {@link android.view.ViewGroup.LayoutParams#WRAP_CONTENT} 305579e14016c4a972e70cd2bd0c6d89bbd7e9e941cDave Burke * when not specified in the XML file.</p> 306579e14016c4a972e70cd2bd0c6d89bbd7e9e941cDave Burke * 307579e14016c4a972e70cd2bd0c6d89bbd7e9e941cDave Burke * @param a the styled attributes set 308579e14016c4a972e70cd2bd0c6d89bbd7e9e941cDave Burke * @param widthAttr the width attribute to fetch 309579e14016c4a972e70cd2bd0c6d89bbd7e9e941cDave Burke * @param heightAttr the height attribute to fetch 310579e14016c4a972e70cd2bd0c6d89bbd7e9e941cDave Burke */ 311579e14016c4a972e70cd2bd0c6d89bbd7e9e941cDave Burke @Override 312579e14016c4a972e70cd2bd0c6d89bbd7e9e941cDave Burke protected void setBaseAttributes(TypedArray a, 313579e14016c4a972e70cd2bd0c6d89bbd7e9e941cDave Burke int widthAttr, int heightAttr) { 314579e14016c4a972e70cd2bd0c6d89bbd7e9e941cDave Burke 315579e14016c4a972e70cd2bd0c6d89bbd7e9e941cDave Burke if (a.hasValue(widthAttr)) { 316579e14016c4a972e70cd2bd0c6d89bbd7e9e941cDave Burke width = a.getLayoutDimension(widthAttr, "layout_width"); 317579e14016c4a972e70cd2bd0c6d89bbd7e9e941cDave Burke } else { 318579e14016c4a972e70cd2bd0c6d89bbd7e9e941cDave Burke width = WRAP_CONTENT; 319579e14016c4a972e70cd2bd0c6d89bbd7e9e941cDave Burke } 320579e14016c4a972e70cd2bd0c6d89bbd7e9e941cDave Burke 321579e14016c4a972e70cd2bd0c6d89bbd7e9e941cDave Burke if (a.hasValue(heightAttr)) { 322579e14016c4a972e70cd2bd0c6d89bbd7e9e941cDave Burke height = a.getLayoutDimension(heightAttr, "layout_height"); 323579e14016c4a972e70cd2bd0c6d89bbd7e9e941cDave Burke } else { 324579e14016c4a972e70cd2bd0c6d89bbd7e9e941cDave Burke height = WRAP_CONTENT; 325579e14016c4a972e70cd2bd0c6d89bbd7e9e941cDave Burke } 326579e14016c4a972e70cd2bd0c6d89bbd7e9e941cDave Burke } 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>Interface definition for a callback to be invoked when the checked 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * radio button changed in this group.</p> 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public interface OnCheckedChangeListener { 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>Called when the checked radio button has changed. When the 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * selection is cleared, checkedId is -1.</p> 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param group the group in which the checked radio button has changed 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param checkedId the unique identifier of the newly checked radio button 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onCheckedChanged(RadioGroup group, int checkedId); 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckedStateTracker implements CompoundButton.OnCheckedChangeListener { 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // prevents from infinite recursion 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mProtectFromCheckedChange) { 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mProtectFromCheckedChange = true; 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCheckedId != -1) { 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setCheckedStateForView(mCheckedId, false); 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mProtectFromCheckedChange = false; 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int id = buttonView.getId(); 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setCheckedId(id); 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>A pass-through listener acts upon the events and dispatches them 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to another listener. This allows the table layout to set its own internal 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * hierarchy change listener without preventing the user to setup his.</p> 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class PassThroughHierarchyChangeListener implements 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewGroup.OnHierarchyChangeListener { 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ViewGroup.OnHierarchyChangeListener mOnHierarchyChangeListener; 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onChildViewAdded(View parent, View child) { 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (parent == RadioGroup.this && child instanceof RadioButton) { 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int id = child.getId(); 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // generates an id if it's missing 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (id == View.NO_ID) { 379a9108a217e039492855fbeacda2ab6c4f4a3f70aAdam Powell id = View.generateViewId(); 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setId(id); 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((RadioButton) child).setOnCheckedChangeWidgetListener( 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mChildOnCheckedChangeListener); 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnHierarchyChangeListener != null) { 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnHierarchyChangeListener.onChildViewAdded(parent, child); 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onChildViewRemoved(View parent, View child) { 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (parent == RadioGroup.this && child instanceof RadioButton) { 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((RadioButton) child).setOnCheckedChangeWidgetListener(null); 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnHierarchyChangeListener != null) { 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnHierarchyChangeListener.onChildViewRemoved(parent, child); 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 405