PreferenceScreen.java revision cdd0c59a0108036895796dcb2bea69ff5eef26ca
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.preference; 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.app.Dialog; 209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.Context; 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.DialogInterface; 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Bundle; 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcel; 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcelable; 25ca74c90cf5c15f648abca77e12a91e1ce2b435e4Amith Yamasaniimport android.text.TextUtils; 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.AttributeSet; 27f9638a4aeecf23079fa74618ad3c285a8a2abfdaAmith Yamasaniimport android.view.LayoutInflater; 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.View; 2972e6bece43ca2778d8101a6d4dede2a12e0d47e8Amith Yamasaniimport android.view.Window; 302d43d283fc0f22b08f43c6db4da71031168e7f59Amith Yamasaniimport android.widget.AbsListView; 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.widget.Adapter; 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.widget.AdapterView; 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.widget.ListAdapter; 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.widget.ListView; 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Represents a top-level {@link Preference} that 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is the root of a Preference hierarchy. A {@link PreferenceActivity} 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * points to an instance of this class to show the preferences. To instantiate 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this class, use {@link PreferenceManager#createPreferenceScreen(Context)}. 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <ul> 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This class can appear in two places: 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <li> When a {@link PreferenceActivity} points to this, it is used as the root 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * and is not shown (only the contained preferences are shown). 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <li> When it appears inside another preference hierarchy, it is shown and 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * serves as the gateway to another screen of preferences (either by showing 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * another screen of preferences as a {@link Dialog} or via a 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Context#startActivity(android.content.Intent)} from the 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Preference#getIntent()}). The children of this {@link PreferenceScreen} 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * are NOT shown in the screen that this {@link PreferenceScreen} is shown in. 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Instead, a separate screen will be shown when this preference is clicked. 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * </ul> 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>Here's an example XML layout of a PreferenceScreen:</p> 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <pre> 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project<PreferenceScreen 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project xmlns:android="http://schemas.android.com/apk/res/android" 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project android:key="first_preferencescreen"> 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project <CheckBoxPreference 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project android:key="wifi enabled" 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project android:title="WiFi" /> 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project <PreferenceScreen 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project android:key="second_preferencescreen" 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project android:title="WiFi settings"> 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project <CheckBoxPreference 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project android:key="prefer wifi" 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project android:title="Prefer WiFi" /> 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ... other preferences here ... 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project </PreferenceScreen> 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project</PreferenceScreen> </pre> 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p> 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * In this example, the "first_preferencescreen" will be used as the root of the 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * hierarchy and given to a {@link PreferenceActivity}. The first screen will 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * show preferences "WiFi" (which can be used to quickly enable/disable WiFi) 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * and "WiFi settings". The "WiFi settings" is the "second_preferencescreen" and when 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * clicked will show another screen of preferences such as "Prefer WiFi" (and 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the other preferences that are children of the "second_preferencescreen" tag). 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 78cdd0c59a0108036895796dcb2bea69ff5eef26caScott Main * <div class="special reference"> 79cdd0c59a0108036895796dcb2bea69ff5eef26caScott Main * <h3>Developer Guides</h3> 80cdd0c59a0108036895796dcb2bea69ff5eef26caScott Main * <p>For information about building a settings UI with Preferences, 81cdd0c59a0108036895796dcb2bea69ff5eef26caScott Main * read the <a href="{@docRoot}guide/topics/ui/settings.html">Settings</a> 82cdd0c59a0108036895796dcb2bea69ff5eef26caScott Main * guide.</p> 83cdd0c59a0108036895796dcb2bea69ff5eef26caScott Main * </div> 84cdd0c59a0108036895796dcb2bea69ff5eef26caScott Main * 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see PreferenceCategory 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic final class PreferenceScreen extends PreferenceGroup implements AdapterView.OnItemClickListener, 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project DialogInterface.OnDismissListener { 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ListAdapter mRootAdapter; 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Dialog mDialog; 931560003d4a1a0ce36bb288905a6a317c1fd74b32Mathias Jeppsson 941560003d4a1a0ce36bb288905a6a317c1fd74b32Mathias Jeppsson private ListView mListView; 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Do NOT use this constructor, use {@link PreferenceManager#createPreferenceScreen(Context)}. 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide- 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public PreferenceScreen(Context context, AttributeSet attrs) { 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, attrs, com.android.internal.R.attr.preferenceScreenStyle); 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns an adapter that can be attached to a {@link PreferenceActivity} 10652a50782d52d0ad2444d08550e4318421e6a15abDaisuke Miyakawa * or {@link PreferenceFragment} to show the preferences contained in this 10752a50782d52d0ad2444d08550e4318421e6a15abDaisuke Miyakawa * {@link PreferenceScreen}. 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p> 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This {@link PreferenceScreen} will NOT appear in the returned adapter, instead 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * it appears in the hierarchy above this {@link PreferenceScreen}. 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p> 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This adapter's {@link Adapter#getItem(int)} should always return a 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * subclass of {@link Preference}. 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return An adapter that provides the {@link Preference} contained in this 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link PreferenceScreen}. 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public ListAdapter getRootAdapter() { 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mRootAdapter == null) { 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRootAdapter = onCreateRootAdapter(); 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mRootAdapter; 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the root adapter. 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return An adapter that contains the preferences contained in this {@link PreferenceScreen}. 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getRootAdapter() 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ListAdapter onCreateRootAdapter() { 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new PreferenceGroupAdapter(this); 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Binds a {@link ListView} to the preferences contained in this {@link PreferenceScreen} via 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #getRootAdapter()}. It also handles passing list item clicks to the corresponding 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Preference} contained by this {@link PreferenceScreen}. 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param listView The list view to attach to. 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void bind(ListView listView) { 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listView.setOnItemClickListener(this); 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listView.setAdapter(getRootAdapter()); 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project onAttachedToActivity(); 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onClick() { 152b3cf10ffa8ff9cac0da8b23a0d84076b3f501400Dianne Hackborn if (getIntent() != null || getFragment() != null || getPreferenceCount() == 0) { 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showDialog(null); 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void showDialog(Bundle state) { 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Context context = getContext(); 1611560003d4a1a0ce36bb288905a6a317c1fd74b32Mathias Jeppsson if (mListView != null) { 1621560003d4a1a0ce36bb288905a6a317c1fd74b32Mathias Jeppsson mListView.setAdapter(null); 1631560003d4a1a0ce36bb288905a6a317c1fd74b32Mathias Jeppsson } 164f9638a4aeecf23079fa74618ad3c285a8a2abfdaAmith Yamasani 165f9638a4aeecf23079fa74618ad3c285a8a2abfdaAmith Yamasani LayoutInflater inflater = (LayoutInflater) 166f9638a4aeecf23079fa74618ad3c285a8a2abfdaAmith Yamasani context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 167f9638a4aeecf23079fa74618ad3c285a8a2abfdaAmith Yamasani View childPrefScreen = inflater.inflate( 168f9638a4aeecf23079fa74618ad3c285a8a2abfdaAmith Yamasani com.android.internal.R.layout.preference_list_fragment, null); 169f9638a4aeecf23079fa74618ad3c285a8a2abfdaAmith Yamasani mListView = (ListView) childPrefScreen.findViewById(android.R.id.list); 1701560003d4a1a0ce36bb288905a6a317c1fd74b32Mathias Jeppsson bind(mListView); 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 172ca74c90cf5c15f648abca77e12a91e1ce2b435e4Amith Yamasani // Set the title bar if title is available, else no title bar 173ca74c90cf5c15f648abca77e12a91e1ce2b435e4Amith Yamasani final CharSequence title = getTitle(); 17472e6bece43ca2778d8101a6d4dede2a12e0d47e8Amith Yamasani Dialog dialog = mDialog = new Dialog(context, context.getThemeResId()); 17572e6bece43ca2778d8101a6d4dede2a12e0d47e8Amith Yamasani if (TextUtils.isEmpty(title)) { 17672e6bece43ca2778d8101a6d4dede2a12e0d47e8Amith Yamasani dialog.getWindow().requestFeature(Window.FEATURE_NO_TITLE); 17772e6bece43ca2778d8101a6d4dede2a12e0d47e8Amith Yamasani } else { 178ca74c90cf5c15f648abca77e12a91e1ce2b435e4Amith Yamasani dialog.setTitle(title); 179ca74c90cf5c15f648abca77e12a91e1ce2b435e4Amith Yamasani } 180f9638a4aeecf23079fa74618ad3c285a8a2abfdaAmith Yamasani dialog.setContentView(childPrefScreen); 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dialog.setOnDismissListener(this); 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state != null) { 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dialog.onRestoreInstanceState(state); 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 185ca74c90cf5c15f648abca77e12a91e1ce2b435e4Amith Yamasani 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Add the screen to the list of preferences screens opened as dialogs 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getPreferenceManager().addPreferencesScreen(dialog); 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dialog.show(); 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onDismiss(DialogInterface dialog) { 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDialog = null; 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getPreferenceManager().removePreferencesScreen(dialog); 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used to get a handle to the dialog. 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This is useful for cases where we want to manipulate the dialog 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * as we would with any other activity or view. 2019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Dialog getDialog() { 2039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mDialog; 2049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onItemClick(AdapterView parent, View view, int position, long id) { 2072d43d283fc0f22b08f43c6db4da71031168e7f59Amith Yamasani // If the list has headers, subtract them from the index. 2082d43d283fc0f22b08f43c6db4da71031168e7f59Amith Yamasani if (parent instanceof ListView) { 2092d43d283fc0f22b08f43c6db4da71031168e7f59Amith Yamasani position -= ((ListView) parent).getHeaderViewsCount(); 2102d43d283fc0f22b08f43c6db4da71031168e7f59Amith Yamasani } 2119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Object item = getRootAdapter().getItem(position); 2129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!(item instanceof Preference)) return; 2132d43d283fc0f22b08f43c6db4da71031168e7f59Amith Yamasani 2149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Preference preference = (Preference) item; 2159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project preference.performClick(this); 2169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isOnSameScreenAsChildren() { 2209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 2219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected Parcelable onSaveInstanceState() { 2259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Parcelable superState = super.onSaveInstanceState(); 2269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Dialog dialog = mDialog; 2279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (dialog == null || !dialog.isShowing()) { 2289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return superState; 2299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final SavedState myState = new SavedState(superState); 2329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project myState.isDialogShowing = true; 2339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project myState.dialogBundle = dialog.onSaveInstanceState(); 2349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return myState; 2359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onRestoreInstanceState(Parcelable state) { 2399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state == null || !state.getClass().equals(SavedState.class)) { 2409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Didn't save state for us in onSaveInstanceState 2419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onRestoreInstanceState(state); 2429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 2439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState myState = (SavedState) state; 2469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onRestoreInstanceState(myState.getSuperState()); 2479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (myState.isDialogShowing) { 2489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showDialog(myState.dialogBundle); 2499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static class SavedState extends BaseSavedState { 2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean isDialogShowing; 2549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Bundle dialogBundle; 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState(Parcel source) { 2579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 2589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project isDialogShowing = source.readInt() == 1; 2599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dialogBundle = source.readBundle(); 2609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel dest, int flags) { 2649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.writeToParcel(dest, flags); 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dest.writeInt(isDialogShowing ? 1 : 0); 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dest.writeBundle(dialogBundle); 2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState(Parcelable superState) { 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(superState); 2719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<SavedState> CREATOR = 2749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project new Parcelable.Creator<SavedState>() { 2759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState createFromParcel(Parcel in) { 2769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState(in); 2779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState[] newArray(int size) { 2809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState[size]; 2819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 2839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 286