1c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn/* 2c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn * Copyright (C) 2010 The Android Open Source Project 3c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn * 4c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn * Licensed under the Apache License, Version 2.0 (the "License"); 5c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn * you may not use this file except in compliance with the License. 6c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn * You may obtain a copy of the License at 7c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn * 8c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn * http://www.apache.org/licenses/LICENSE-2.0 9c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn * 10c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn * Unless required by applicable law or agreed to in writing, software 11c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn * distributed under the License is distributed on an "AS IS" BASIS, 12c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn * See the License for the specific language governing permissions and 14c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn * limitations under the License. 15c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn */ 16c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn 17c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackbornpackage android.app; 18c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn 19c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackbornimport android.content.Loader; 20c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackbornimport android.os.Bundle; 21a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackbornimport android.util.DebugUtils; 225e0d59547c4042037e23a42ba4e2521721e9c7d3Dianne Hackbornimport android.util.Log; 23c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackbornimport android.util.SparseArray; 24c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn 2530d7189067524000c738c188c4ff91f84f474d25Dianne Hackbornimport java.io.FileDescriptor; 2630d7189067524000c738c188c4ff91f84f474d25Dianne Hackbornimport java.io.PrintWriter; 270e3b8f421dfcc5363f234eb1b76479cb2fb2e8eeDianne Hackbornimport java.lang.reflect.Modifier; 2830d7189067524000c738c188c4ff91f84f474d25Dianne Hackborn 29c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn/** 304911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn * Interface associated with an {@link Activity} or {@link Fragment} for managing 31c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * one or more {@link android.content.Loader} instances associated with it. This 32c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * helps an application manage longer-running operations in conjunction with the 33c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * Activity or Fragment lifecycle; the most common use of this is with a 34c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * {@link android.content.CursorLoader}, however applications are free to write 35c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * their own loaders for loading other types of data. 36c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * 37f9dd34f4d3203fd50363b3b0247c5d0db6fe2c8fDianne Hackborn * While the LoaderManager API was introduced in 38f9dd34f4d3203fd50363b3b0247c5d0db6fe2c8fDianne Hackborn * {@link android.os.Build.VERSION_CODES#HONEYCOMB}, a version of the API 397871badd5d4d29d80207e9cc09a0681f26a151d0Dianne Hackborn * at is also available for use on older platforms through 407871badd5d4d29d80207e9cc09a0681f26a151d0Dianne Hackborn * {@link android.support.v4.app.FragmentActivity}. See the blog post 41f9dd34f4d3203fd50363b3b0247c5d0db6fe2c8fDianne Hackborn * <a href="http://android-developers.blogspot.com/2011/03/fragments-for-all.html"> 42f9dd34f4d3203fd50363b3b0247c5d0db6fe2c8fDianne Hackborn * Fragments For All</a> for more details. 43f9dd34f4d3203fd50363b3b0247c5d0db6fe2c8fDianne Hackborn * 44c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * <p>As an example, here is the full implementation of a {@link Fragment} 45c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * that displays a {@link android.widget.ListView} containing the results of 46c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * a query against the contacts content provider. It uses a 47c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * {@link android.content.CursorLoader} to manage the query on the provider. 48c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * 49f9dd34f4d3203fd50363b3b0247c5d0db6fe2c8fDianne Hackborn * {@sample development/samples/ApiDemos/src/com/example/android/apis/app/LoaderCursor.java 50c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * fragment_cursor} 51b54e7a3d9f60ac605f404f9eb3c5e92ca51bbd23Joe Fernandez * 52b54e7a3d9f60ac605f404f9eb3c5e92ca51bbd23Joe Fernandez * <div class="special reference"> 53b54e7a3d9f60ac605f404f9eb3c5e92ca51bbd23Joe Fernandez * <h3>Developer Guides</h3> 54b54e7a3d9f60ac605f404f9eb3c5e92ca51bbd23Joe Fernandez * <p>For more information about using loaders, read the 55b54e7a3d9f60ac605f404f9eb3c5e92ca51bbd23Joe Fernandez * <a href="{@docRoot}guide/topics/fundamentals/loaders.html">Loaders</a> developer guide.</p> 56b54e7a3d9f60ac605f404f9eb3c5e92ca51bbd23Joe Fernandez * </div> 570a1feb819234ae7fc8cc32aa1dc5929823b0a5bcIan Lake * 581f4e67b6e17e9b86151140174491b2360bac82d9Ian Lake * @deprecated Use the <a href="{@docRoot}tools/extras/support-library.html">Support Library</a> 591f4e67b6e17e9b86151140174491b2360bac82d9Ian Lake * {@link android.support.v4.app.LoaderManager} 60c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn */ 610a1feb819234ae7fc8cc32aa1dc5929823b0a5bcIan Lake@Deprecated 62ab36acb39941ce981dddda9f9cf4d2d23a56fd26Dianne Hackbornpublic abstract class LoaderManager { 63c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn /** 64c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn * Callback interface for a client to interact with the manager. 650a1feb819234ae7fc8cc32aa1dc5929823b0a5bcIan Lake * 661f4e67b6e17e9b86151140174491b2360bac82d9Ian Lake * @deprecated Use the <a href="{@docRoot}tools/extras/support-library.html"> 671f4e67b6e17e9b86151140174491b2360bac82d9Ian Lake * Support Library</a> {@link android.support.v4.app.LoaderManager.LoaderCallbacks} 68c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn */ 690a1feb819234ae7fc8cc32aa1dc5929823b0a5bcIan Lake @Deprecated 70c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn public interface LoaderCallbacks<D> { 714911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn /** 724911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn * Instantiate and return a new Loader for the given ID. 734911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn * 744911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn * @param id The ID whose loader is to be created. 754911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn * @param args Any arguments supplied by the caller. 764911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn * @return Return a new Loader instance that is ready to start loading. 774911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn */ 78c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn public Loader<D> onCreateLoader(int id, Bundle args); 794911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn 804911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn /** 81fb3cffeb35368da22f99b85d45039c4e6e471c06Dianne Hackborn * Called when a previously created loader has finished its load. Note 82fb3cffeb35368da22f99b85d45039c4e6e471c06Dianne Hackborn * that normally an application is <em>not</em> allowed to commit fragment 83fb3cffeb35368da22f99b85d45039c4e6e471c06Dianne Hackborn * transactions while in this call, since it can happen after an 8448e7b458694acdf3a4fc58e62437f1dbc4f29d83Dianne Hackborn * activity's state is saved. See {@link FragmentManager#beginTransaction() 85fb3cffeb35368da22f99b85d45039c4e6e471c06Dianne Hackborn * FragmentManager.openTransaction()} for further discussion on this. 86fb3cffeb35368da22f99b85d45039c4e6e471c06Dianne Hackborn * 87c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * <p>This function is guaranteed to be called prior to the release of 88c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * the last data that was supplied for this Loader. At this point 89c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * you should remove all use of the old data (since it will be released 90c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * soon), but should not do your own release of the data since its Loader 91c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * owns it and will take care of that. The Loader will take care of 92c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * management of its data so you don't have to. In particular: 93c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * 94c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * <ul> 95c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * <li> <p>The Loader will monitor for changes to the data, and report 96c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * them to you through new calls here. You should not monitor the 97c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * data yourself. For example, if the data is a {@link android.database.Cursor} 98c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * and you place it in a {@link android.widget.CursorAdapter}, use 99c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * the {@link android.widget.CursorAdapter#CursorAdapter(android.content.Context, 100c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * android.database.Cursor, int)} constructor <em>without</em> passing 101c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * in either {@link android.widget.CursorAdapter#FLAG_AUTO_REQUERY} 102c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * or {@link android.widget.CursorAdapter#FLAG_REGISTER_CONTENT_OBSERVER} 103c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * (that is, use 0 for the flags argument). This prevents the CursorAdapter 104c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * from doing its own observing of the Cursor, which is not needed since 105c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * when a change happens you will get a new Cursor throw another call 106c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * here. 107c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * <li> The Loader will release the data once it knows the application 108c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * is no longer using it. For example, if the data is 109c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * a {@link android.database.Cursor} from a {@link android.content.CursorLoader}, 110c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * you should not call close() on it yourself. If the Cursor is being placed in a 111c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * {@link android.widget.CursorAdapter}, you should use the 112c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * {@link android.widget.CursorAdapter#swapCursor(android.database.Cursor)} 113c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * method so that the old Cursor is not closed. 114c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * </ul> 115c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * 1164911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn * @param loader The Loader that has finished. 1174911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn * @param data The data generated by the Loader. 1184911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn */ 119c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn public void onLoadFinished(Loader<D> loader, D data); 120c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn 121c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn /** 122c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * Called when a previously created loader is being reset, and thus 123c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * making its data unavailable. The application should at this point 124c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * remove any references it has to the Loader's data. 125c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * 126c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * @param loader The Loader that is being reset. 127c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn */ 128c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn public void onLoaderReset(Loader<D> loader); 129c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn } 130c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn 1314911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn /** 1324911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn * Ensures a loader is initialized and active. If the loader doesn't 1334911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn * already exist, one is created and (if the activity/fragment is currently 1344911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn * started) starts the loader. Otherwise the last created 1354911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn * loader is re-used. 1364911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn * 1374911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn * <p>In either case, the given callback is associated with the loader, and 1384911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn * will be called as the loader state changes. If at the point of call 1394911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn * the caller is in its started state, and the requested loader 1404911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn * already exists and has generated its data, then 141c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * callback {@link LoaderCallbacks#onLoadFinished} will 1424911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn * be called immediately (inside of this function), so you must be prepared 1434911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn * for this to happen. 144c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * 145c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * @param id A unique identifier for this loader. Can be whatever you want. 146c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * Identifiers are scoped to a particular LoaderManager instance. 147c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * @param args Optional arguments to supply to the loader at construction. 148a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn * If a loader already exists (a new one does not need to be created), this 149a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn * parameter will be ignored and the last arguments continue to be used. 150c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * @param callback Interface the LoaderManager will call to report about 151c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * changes in the state of the loader. Required. 1524911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn */ 153ab36acb39941ce981dddda9f9cf4d2d23a56fd26Dianne Hackborn public abstract <D> Loader<D> initLoader(int id, Bundle args, 1544911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn LoaderManager.LoaderCallbacks<D> callback); 1554911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn 1564911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn /** 157c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * Starts a new or restarts an existing {@link android.content.Loader} in 158c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * this manager, registers the callbacks to it, 1594911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn * and (if the activity/fragment is currently started) starts loading it. 1604911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn * If a loader with the same id has previously been 1614911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn * started it will automatically be destroyed when the new loader completes 1624911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn * its work. The callback will be delivered before the old loader 1634911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn * is destroyed. 164c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * 165c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * @param id A unique identifier for this loader. Can be whatever you want. 166c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * Identifiers are scoped to a particular LoaderManager instance. 167c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * @param args Optional arguments to supply to the loader at construction. 168c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * @param callback Interface the LoaderManager will call to report about 169c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn * changes in the state of the loader. Required. 1704911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn */ 171ab36acb39941ce981dddda9f9cf4d2d23a56fd26Dianne Hackborn public abstract <D> Loader<D> restartLoader(int id, Bundle args, 1724911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn LoaderManager.LoaderCallbacks<D> callback); 1734911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn 1744911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn /** 175f73c75ca20fcaaee1b0eeaaf756252c33e3099c6Dianne Hackborn * Stops and removes the loader with the given ID. If this loader 176f73c75ca20fcaaee1b0eeaaf756252c33e3099c6Dianne Hackborn * had previously reported data to the client through 177f73c75ca20fcaaee1b0eeaaf756252c33e3099c6Dianne Hackborn * {@link LoaderCallbacks#onLoadFinished(Loader, Object)}, a call 178f73c75ca20fcaaee1b0eeaaf756252c33e3099c6Dianne Hackborn * will be made to {@link LoaderCallbacks#onLoaderReset(Loader)}. 1794911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn */ 180c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn public abstract void destroyLoader(int id); 181c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn 182c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn /** 1834911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn * Return the Loader with the given id or null if no matching Loader 1844911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn * is found. 1854911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn */ 186ab36acb39941ce981dddda9f9cf4d2d23a56fd26Dianne Hackborn public abstract <D> Loader<D> getLoader(int id); 18730d7189067524000c738c188c4ff91f84f474d25Dianne Hackborn 18830d7189067524000c738c188c4ff91f84f474d25Dianne Hackborn /** 18930d7189067524000c738c188c4ff91f84f474d25Dianne Hackborn * Print the LoaderManager's state into the given stream. 19030d7189067524000c738c188c4ff91f84f474d25Dianne Hackborn * 19130d7189067524000c738c188c4ff91f84f474d25Dianne Hackborn * @param prefix Text to print at the front of each line. 19230d7189067524000c738c188c4ff91f84f474d25Dianne Hackborn * @param fd The raw file descriptor that the dump is being sent to. 19330d7189067524000c738c188c4ff91f84f474d25Dianne Hackborn * @param writer A PrintWriter to which the dump is to be set. 19430d7189067524000c738c188c4ff91f84f474d25Dianne Hackborn * @param args Additional arguments to the dump request. 19530d7189067524000c738c188c4ff91f84f474d25Dianne Hackborn */ 19630d7189067524000c738c188c4ff91f84f474d25Dianne Hackborn public abstract void dump(String prefix, FileDescriptor fd, PrintWriter writer, String[] args); 197a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn 198a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn /** 199a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn * Control whether the framework's internal loader manager debugging 200a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn * logs are turned on. If enabled, you will see output in logcat as 201a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn * the framework performs loader operations. 202a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn */ 203a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn public static void enableDebugLogging(boolean enabled) { 204a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn LoaderManagerImpl.DEBUG = enabled; 205a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn } 206180202f2211d8c6bbb7a7057e61dafc90fe31930Adam Powell 207180202f2211d8c6bbb7a7057e61dafc90fe31930Adam Powell /** @hide for internal testing only */ 208180202f2211d8c6bbb7a7057e61dafc90fe31930Adam Powell public FragmentHostCallback getFragmentHostCallback() { return null; } 2094911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn} 2104911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn 211ab36acb39941ce981dddda9f9cf4d2d23a56fd26Dianne Hackbornclass LoaderManagerImpl extends LoaderManager { 212a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn static final String TAG = "LoaderManager"; 213ec541e1787b39605200584042fa1e144923eeb4fDianne Hackborn static boolean DEBUG = false; 2145e0d59547c4042037e23a42ba4e2521721e9c7d3Dianne Hackborn 2155e0d59547c4042037e23a42ba4e2521721e9c7d3Dianne Hackborn // These are the currently active loaders. A loader is here 2165e0d59547c4042037e23a42ba4e2521721e9c7d3Dianne Hackborn // from the time its load is started until it has been explicitly 2175e0d59547c4042037e23a42ba4e2521721e9c7d3Dianne Hackborn // stopped or restarted by the application. 218f4bf0ae2a7c2d9d92c5c8abdb82baa53b4c9ccdaDianne Hackborn final SparseArray<LoaderInfo> mLoaders = new SparseArray<LoaderInfo>(0); 2195e0d59547c4042037e23a42ba4e2521721e9c7d3Dianne Hackborn 2205e0d59547c4042037e23a42ba4e2521721e9c7d3Dianne Hackborn // These are previously run loaders. This list is maintained internally 2215e0d59547c4042037e23a42ba4e2521721e9c7d3Dianne Hackborn // to avoid destroying a loader while an application is still using it. 2225e0d59547c4042037e23a42ba4e2521721e9c7d3Dianne Hackborn // It allows an application to restart a loader, but continue using its 2235e0d59547c4042037e23a42ba4e2521721e9c7d3Dianne Hackborn // previously run loader until the new loader's data is available. 224f4bf0ae2a7c2d9d92c5c8abdb82baa53b4c9ccdaDianne Hackborn final SparseArray<LoaderInfo> mInactiveLoaders = new SparseArray<LoaderInfo>(0); 2255e0d59547c4042037e23a42ba4e2521721e9c7d3Dianne Hackborn 22662bea2f1710be0d1a42c07109fd4307ded660d3bDianne Hackborn final String mWho; 22762bea2f1710be0d1a42c07109fd4307ded660d3bDianne Hackborn 2284911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn boolean mStarted; 2294911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn boolean mRetaining; 2304911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn boolean mRetainingStarted; 2316e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn 2326e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn boolean mCreatingLoader; 233a5fc6f006f67867417b7a427de6e7394c4312decTodd Kennedy private FragmentHostCallback mHost; 2344911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn 235b19a71a20adb48c084e87d06a1e6b0dcb49170f5Jeff Brown final class LoaderInfo implements Loader.OnLoadCompleteListener<Object>, 236b19a71a20adb48c084e87d06a1e6b0dcb49170f5Jeff Brown Loader.OnLoadCanceledListener<Object> { 2372707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn final int mId; 2382707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn final Bundle mArgs; 2392707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn LoaderManager.LoaderCallbacks<Object> mCallbacks; 2402707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn Loader<Object> mLoader; 2416e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn boolean mHaveData; 2426e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn boolean mDeliveredData; 2432707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn Object mData; 2442707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn boolean mStarted; 2452707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn boolean mRetaining; 2462707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn boolean mRetainingStarted; 247afc4b283fdaedec9bf32492a019b43cc33edc9b6Dianne Hackborn boolean mReportNextStart; 2482707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn boolean mDestroyed; 2492707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn boolean mListenerRegistered; 25030d7189067524000c738c188c4ff91f84f474d25Dianne Hackborn 2516e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn LoaderInfo mPendingLoader; 2526e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn 2532707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn public LoaderInfo(int id, Bundle args, LoaderManager.LoaderCallbacks<Object> callbacks) { 2542707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn mId = id; 2552707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn mArgs = args; 2562707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn mCallbacks = callbacks; 2572707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn } 2582707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn 2592707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn void start() { 2602707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn if (mRetaining && mRetainingStarted) { 2612707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn // Our owner is started, but we were being retained from a 2622707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn // previous instance in the started state... so there is really 2632707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn // nothing to do here, since the loaders are still started. 2642707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn mStarted = true; 2652707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn return; 2662707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn } 2672707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn 2684911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn if (mStarted) { 2694911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn // If loader already started, don't restart. 2704911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn return; 2714911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn } 2724911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn 2730e3b8f421dfcc5363f234eb1b76479cb2fb2e8eeDianne Hackborn mStarted = true; 2740e3b8f421dfcc5363f234eb1b76479cb2fb2e8eeDianne Hackborn 2755e0d59547c4042037e23a42ba4e2521721e9c7d3Dianne Hackborn if (DEBUG) Log.v(TAG, " Starting: " + this); 2762707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn if (mLoader == null && mCallbacks != null) { 2772707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn mLoader = mCallbacks.onCreateLoader(mId, mArgs); 2782707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn } 2792707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn if (mLoader != null) { 2800e3b8f421dfcc5363f234eb1b76479cb2fb2e8eeDianne Hackborn if (mLoader.getClass().isMemberClass() 2810e3b8f421dfcc5363f234eb1b76479cb2fb2e8eeDianne Hackborn && !Modifier.isStatic(mLoader.getClass().getModifiers())) { 282a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn throw new IllegalArgumentException( 2830e3b8f421dfcc5363f234eb1b76479cb2fb2e8eeDianne Hackborn "Object returned from onCreateLoader must not be a non-static inner member class: " 284a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn + mLoader); 285a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn } 2864911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn if (!mListenerRegistered) { 2874911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn mLoader.registerListener(mId, this); 288b19a71a20adb48c084e87d06a1e6b0dcb49170f5Jeff Brown mLoader.registerOnLoadCanceledListener(this); 2894911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn mListenerRegistered = true; 2904911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn } 2912707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn mLoader.startLoading(); 2922707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn } 2932707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn } 2942707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn 2952707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn void retain() { 2965e0d59547c4042037e23a42ba4e2521721e9c7d3Dianne Hackborn if (DEBUG) Log.v(TAG, " Retaining: " + this); 2972707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn mRetaining = true; 2982707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn mRetainingStarted = mStarted; 2992707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn mStarted = false; 3002707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn mCallbacks = null; 3012707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn } 3022707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn 3032707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn void finishRetain() { 3042707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn if (mRetaining) { 3055e0d59547c4042037e23a42ba4e2521721e9c7d3Dianne Hackborn if (DEBUG) Log.v(TAG, " Finished Retaining: " + this); 3062707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn mRetaining = false; 3072707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn if (mStarted != mRetainingStarted) { 3082707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn if (!mStarted) { 3092707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn // This loader was retained in a started state, but 3102707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn // at the end of retaining everything our owner is 3112707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn // no longer started... so make it stop. 3122707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn stop(); 3132707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn } 3142707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn } 315c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn } 316c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn 317afc4b283fdaedec9bf32492a019b43cc33edc9b6Dianne Hackborn if (mStarted && mHaveData && !mReportNextStart) { 318c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn // This loader has retained its data, either completely across 319c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn // a configuration change or just whatever the last data set 320c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn // was after being restarted from a stop, and now at the point of 321c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn // finishing the retain we find we remain started, have 322c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn // our data, and the owner has a new callback... so 323c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn // let's deliver the data now. 324c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn callOnLoadFinished(mLoader, mData); 3252707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn } 3262707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn } 3272707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn 328afc4b283fdaedec9bf32492a019b43cc33edc9b6Dianne Hackborn void reportStart() { 329afc4b283fdaedec9bf32492a019b43cc33edc9b6Dianne Hackborn if (mStarted) { 330afc4b283fdaedec9bf32492a019b43cc33edc9b6Dianne Hackborn if (mReportNextStart) { 331afc4b283fdaedec9bf32492a019b43cc33edc9b6Dianne Hackborn mReportNextStart = false; 332eba13dd07f2e9070b2017f8defddd5bb719939a1Adam Powell if (mHaveData && !mRetaining) { 333afc4b283fdaedec9bf32492a019b43cc33edc9b6Dianne Hackborn callOnLoadFinished(mLoader, mData); 334afc4b283fdaedec9bf32492a019b43cc33edc9b6Dianne Hackborn } 335afc4b283fdaedec9bf32492a019b43cc33edc9b6Dianne Hackborn } 336afc4b283fdaedec9bf32492a019b43cc33edc9b6Dianne Hackborn } 337afc4b283fdaedec9bf32492a019b43cc33edc9b6Dianne Hackborn } 338afc4b283fdaedec9bf32492a019b43cc33edc9b6Dianne Hackborn 3392707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn void stop() { 3405e0d59547c4042037e23a42ba4e2521721e9c7d3Dianne Hackborn if (DEBUG) Log.v(TAG, " Stopping: " + this); 3412707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn mStarted = false; 342debb2e25b3ce2f0f5195a2895dd1882fc172d4d8Dianne Hackborn if (!mRetaining) { 343debb2e25b3ce2f0f5195a2895dd1882fc172d4d8Dianne Hackborn if (mLoader != null && mListenerRegistered) { 344debb2e25b3ce2f0f5195a2895dd1882fc172d4d8Dianne Hackborn // Let the loader know we're done with it 345debb2e25b3ce2f0f5195a2895dd1882fc172d4d8Dianne Hackborn mListenerRegistered = false; 346debb2e25b3ce2f0f5195a2895dd1882fc172d4d8Dianne Hackborn mLoader.unregisterListener(this); 347b19a71a20adb48c084e87d06a1e6b0dcb49170f5Jeff Brown mLoader.unregisterOnLoadCanceledListener(this); 348debb2e25b3ce2f0f5195a2895dd1882fc172d4d8Dianne Hackborn mLoader.stopLoading(); 349debb2e25b3ce2f0f5195a2895dd1882fc172d4d8Dianne Hackborn } 3502707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn } 3512707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn } 352b19a71a20adb48c084e87d06a1e6b0dcb49170f5Jeff Brown 353e5552be22a016dd8b79026f56b071ab128d5a904Adam Powell boolean cancel() { 354b19a71a20adb48c084e87d06a1e6b0dcb49170f5Jeff Brown if (DEBUG) Log.v(TAG, " Canceling: " + this); 355b19a71a20adb48c084e87d06a1e6b0dcb49170f5Jeff Brown if (mStarted && mLoader != null && mListenerRegistered) { 356e5552be22a016dd8b79026f56b071ab128d5a904Adam Powell final boolean cancelLoadResult = mLoader.cancelLoad(); 357e5552be22a016dd8b79026f56b071ab128d5a904Adam Powell if (!cancelLoadResult) { 358b19a71a20adb48c084e87d06a1e6b0dcb49170f5Jeff Brown onLoadCanceled(mLoader); 359b19a71a20adb48c084e87d06a1e6b0dcb49170f5Jeff Brown } 360e5552be22a016dd8b79026f56b071ab128d5a904Adam Powell return cancelLoadResult; 361b19a71a20adb48c084e87d06a1e6b0dcb49170f5Jeff Brown } 362e5552be22a016dd8b79026f56b071ab128d5a904Adam Powell return false; 363b19a71a20adb48c084e87d06a1e6b0dcb49170f5Jeff Brown } 364b19a71a20adb48c084e87d06a1e6b0dcb49170f5Jeff Brown 3652707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn void destroy() { 3665e0d59547c4042037e23a42ba4e2521721e9c7d3Dianne Hackborn if (DEBUG) Log.v(TAG, " Destroying: " + this); 3672707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn mDestroyed = true; 3686e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn boolean needReset = mDeliveredData; 3696e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn mDeliveredData = false; 3706e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn if (mCallbacks != null && mLoader != null && mHaveData && needReset) { 371a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn if (DEBUG) Log.v(TAG, " Reseting: " + this); 372c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn String lastBecause = null; 373a5fc6f006f67867417b7a427de6e7394c4312decTodd Kennedy if (mHost != null) { 374a5fc6f006f67867417b7a427de6e7394c4312decTodd Kennedy lastBecause = mHost.mFragmentManager.mNoTransactionsBecause; 375a5fc6f006f67867417b7a427de6e7394c4312decTodd Kennedy mHost.mFragmentManager.mNoTransactionsBecause = "onLoaderReset"; 376c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn } 377c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn try { 378c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn mCallbacks.onLoaderReset(mLoader); 379c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn } finally { 380a5fc6f006f67867417b7a427de6e7394c4312decTodd Kennedy if (mHost != null) { 381a5fc6f006f67867417b7a427de6e7394c4312decTodd Kennedy mHost.mFragmentManager.mNoTransactionsBecause = lastBecause; 382c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn } 383c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn } 384c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn } 3852707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn mCallbacks = null; 386c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn mData = null; 3876e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn mHaveData = false; 3882707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn if (mLoader != null) { 3892707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn if (mListenerRegistered) { 3902707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn mListenerRegistered = false; 3912707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn mLoader.unregisterListener(this); 392b19a71a20adb48c084e87d06a1e6b0dcb49170f5Jeff Brown mLoader.unregisterOnLoadCanceledListener(this); 3932707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn } 394c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn mLoader.reset(); 3952707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn } 3966e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn if (mPendingLoader != null) { 3976e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn mPendingLoader.destroy(); 3986e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn } 3992707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn } 400b19a71a20adb48c084e87d06a1e6b0dcb49170f5Jeff Brown 401b19a71a20adb48c084e87d06a1e6b0dcb49170f5Jeff Brown @Override 402b19a71a20adb48c084e87d06a1e6b0dcb49170f5Jeff Brown public void onLoadCanceled(Loader<Object> loader) { 403b19a71a20adb48c084e87d06a1e6b0dcb49170f5Jeff Brown if (DEBUG) Log.v(TAG, "onLoadCanceled: " + this); 404b19a71a20adb48c084e87d06a1e6b0dcb49170f5Jeff Brown 405b19a71a20adb48c084e87d06a1e6b0dcb49170f5Jeff Brown if (mDestroyed) { 406b19a71a20adb48c084e87d06a1e6b0dcb49170f5Jeff Brown if (DEBUG) Log.v(TAG, " Ignoring load canceled -- destroyed"); 407b19a71a20adb48c084e87d06a1e6b0dcb49170f5Jeff Brown return; 408b19a71a20adb48c084e87d06a1e6b0dcb49170f5Jeff Brown } 409b19a71a20adb48c084e87d06a1e6b0dcb49170f5Jeff Brown 410b19a71a20adb48c084e87d06a1e6b0dcb49170f5Jeff Brown if (mLoaders.get(mId) != this) { 411b19a71a20adb48c084e87d06a1e6b0dcb49170f5Jeff Brown // This cancellation message is not coming from the current active loader. 412b19a71a20adb48c084e87d06a1e6b0dcb49170f5Jeff Brown // We don't care about it. 413b19a71a20adb48c084e87d06a1e6b0dcb49170f5Jeff Brown if (DEBUG) Log.v(TAG, " Ignoring load canceled -- not active"); 414b19a71a20adb48c084e87d06a1e6b0dcb49170f5Jeff Brown return; 415b19a71a20adb48c084e87d06a1e6b0dcb49170f5Jeff Brown } 416b19a71a20adb48c084e87d06a1e6b0dcb49170f5Jeff Brown 417b19a71a20adb48c084e87d06a1e6b0dcb49170f5Jeff Brown LoaderInfo pending = mPendingLoader; 418b19a71a20adb48c084e87d06a1e6b0dcb49170f5Jeff Brown if (pending != null) { 419b19a71a20adb48c084e87d06a1e6b0dcb49170f5Jeff Brown // There is a new request pending and we were just 420b19a71a20adb48c084e87d06a1e6b0dcb49170f5Jeff Brown // waiting for the old one to cancel or complete before starting 421b19a71a20adb48c084e87d06a1e6b0dcb49170f5Jeff Brown // it. So now it is time, switch over to the new loader. 422b19a71a20adb48c084e87d06a1e6b0dcb49170f5Jeff Brown if (DEBUG) Log.v(TAG, " Switching to pending loader: " + pending); 423b19a71a20adb48c084e87d06a1e6b0dcb49170f5Jeff Brown mPendingLoader = null; 424b19a71a20adb48c084e87d06a1e6b0dcb49170f5Jeff Brown mLoaders.put(mId, null); 425b19a71a20adb48c084e87d06a1e6b0dcb49170f5Jeff Brown destroy(); 426b19a71a20adb48c084e87d06a1e6b0dcb49170f5Jeff Brown installLoader(pending); 427b19a71a20adb48c084e87d06a1e6b0dcb49170f5Jeff Brown } 428b19a71a20adb48c084e87d06a1e6b0dcb49170f5Jeff Brown } 429b19a71a20adb48c084e87d06a1e6b0dcb49170f5Jeff Brown 430b19a71a20adb48c084e87d06a1e6b0dcb49170f5Jeff Brown @Override 431b19a71a20adb48c084e87d06a1e6b0dcb49170f5Jeff Brown public void onLoadComplete(Loader<Object> loader, Object data) { 432a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn if (DEBUG) Log.v(TAG, "onLoadComplete: " + this); 4336e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn 4342707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn if (mDestroyed) { 435a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn if (DEBUG) Log.v(TAG, " Ignoring load complete -- destroyed"); 4362707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn return; 4372707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn } 4386e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn 4396e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn if (mLoaders.get(mId) != this) { 4406e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn // This data is not coming from the current active loader. 4416e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn // We don't care about it. 4426e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn if (DEBUG) Log.v(TAG, " Ignoring load complete -- not active"); 4436e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn return; 4446e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn } 4456e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn 4466e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn LoaderInfo pending = mPendingLoader; 4476e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn if (pending != null) { 4486e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn // There is a new request pending and we were just 4496e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn // waiting for the old one to complete before starting 4506e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn // it. So now it is time, switch over to the new loader. 4516e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn if (DEBUG) Log.v(TAG, " Switching to pending loader: " + pending); 4526e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn mPendingLoader = null; 4536e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn mLoaders.put(mId, null); 4546e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn destroy(); 4556e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn installLoader(pending); 4566e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn return; 4576e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn } 4582707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn 459c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn // Notify of the new data so the app can switch out the old data before 460c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn // we try to destroy it. 4616e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn if (mData != data || !mHaveData) { 4620e3b8f421dfcc5363f234eb1b76479cb2fb2e8eeDianne Hackborn mData = data; 4636e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn mHaveData = true; 4640e3b8f421dfcc5363f234eb1b76479cb2fb2e8eeDianne Hackborn if (mStarted) { 4650e3b8f421dfcc5363f234eb1b76479cb2fb2e8eeDianne Hackborn callOnLoadFinished(loader, data); 4660e3b8f421dfcc5363f234eb1b76479cb2fb2e8eeDianne Hackborn } 467c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn } 468c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn 469a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn //if (DEBUG) Log.v(TAG, " onLoadFinished returned: " + this); 4705e0d59547c4042037e23a42ba4e2521721e9c7d3Dianne Hackborn 4715e0d59547c4042037e23a42ba4e2521721e9c7d3Dianne Hackborn // We have now given the application the new loader with its 4725e0d59547c4042037e23a42ba4e2521721e9c7d3Dianne Hackborn // loaded data, so it should have stopped using the previous 4735e0d59547c4042037e23a42ba4e2521721e9c7d3Dianne Hackborn // loader. If there is a previous loader on the inactive list, 4745e0d59547c4042037e23a42ba4e2521721e9c7d3Dianne Hackborn // clean it up. 4752707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn LoaderInfo info = mInactiveLoaders.get(mId); 4765e0d59547c4042037e23a42ba4e2521721e9c7d3Dianne Hackborn if (info != null && info != this) { 4776e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn info.mDeliveredData = false; 4785e0d59547c4042037e23a42ba4e2521721e9c7d3Dianne Hackborn info.destroy(); 4792707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn mInactiveLoaders.remove(mId); 480c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn } 481635c60af623c73d2409f5729c0953638b5d6c497Adam Powell 482a5fc6f006f67867417b7a427de6e7394c4312decTodd Kennedy if (mHost != null && !hasRunningLoaders()) { 483a5fc6f006f67867417b7a427de6e7394c4312decTodd Kennedy mHost.mFragmentManager.startPendingDeferredFragments(); 484635c60af623c73d2409f5729c0953638b5d6c497Adam Powell } 485c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn } 4865e0d59547c4042037e23a42ba4e2521721e9c7d3Dianne Hackborn 487fb3cffeb35368da22f99b85d45039c4e6e471c06Dianne Hackborn void callOnLoadFinished(Loader<Object> loader, Object data) { 488fb3cffeb35368da22f99b85d45039c4e6e471c06Dianne Hackborn if (mCallbacks != null) { 489fb3cffeb35368da22f99b85d45039c4e6e471c06Dianne Hackborn String lastBecause = null; 490a5fc6f006f67867417b7a427de6e7394c4312decTodd Kennedy if (mHost != null) { 491a5fc6f006f67867417b7a427de6e7394c4312decTodd Kennedy lastBecause = mHost.mFragmentManager.mNoTransactionsBecause; 492a5fc6f006f67867417b7a427de6e7394c4312decTodd Kennedy mHost.mFragmentManager.mNoTransactionsBecause = "onLoadFinished"; 493fb3cffeb35368da22f99b85d45039c4e6e471c06Dianne Hackborn } 494fb3cffeb35368da22f99b85d45039c4e6e471c06Dianne Hackborn try { 495a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn if (DEBUG) Log.v(TAG, " onLoadFinished in " + loader + ": " 496a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn + loader.dataToString(data)); 497fb3cffeb35368da22f99b85d45039c4e6e471c06Dianne Hackborn mCallbacks.onLoadFinished(loader, data); 498fb3cffeb35368da22f99b85d45039c4e6e471c06Dianne Hackborn } finally { 499a5fc6f006f67867417b7a427de6e7394c4312decTodd Kennedy if (mHost != null) { 500a5fc6f006f67867417b7a427de6e7394c4312decTodd Kennedy mHost.mFragmentManager.mNoTransactionsBecause = lastBecause; 501fb3cffeb35368da22f99b85d45039c4e6e471c06Dianne Hackborn } 502fb3cffeb35368da22f99b85d45039c4e6e471c06Dianne Hackborn } 5036e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn mDeliveredData = true; 504fb3cffeb35368da22f99b85d45039c4e6e471c06Dianne Hackborn } 505fb3cffeb35368da22f99b85d45039c4e6e471c06Dianne Hackborn } 506fb3cffeb35368da22f99b85d45039c4e6e471c06Dianne Hackborn 5075e0d59547c4042037e23a42ba4e2521721e9c7d3Dianne Hackborn @Override 5085e0d59547c4042037e23a42ba4e2521721e9c7d3Dianne Hackborn public String toString() { 5095e0d59547c4042037e23a42ba4e2521721e9c7d3Dianne Hackborn StringBuilder sb = new StringBuilder(64); 5105e0d59547c4042037e23a42ba4e2521721e9c7d3Dianne Hackborn sb.append("LoaderInfo{"); 5115e0d59547c4042037e23a42ba4e2521721e9c7d3Dianne Hackborn sb.append(Integer.toHexString(System.identityHashCode(this))); 5125e0d59547c4042037e23a42ba4e2521721e9c7d3Dianne Hackborn sb.append(" #"); 5135e0d59547c4042037e23a42ba4e2521721e9c7d3Dianne Hackborn sb.append(mId); 514a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn sb.append(" : "); 515a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn DebugUtils.buildShortClassTag(mLoader, sb); 516a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn sb.append("}}"); 51730d7189067524000c738c188c4ff91f84f474d25Dianne Hackborn return sb.toString(); 51830d7189067524000c738c188c4ff91f84f474d25Dianne Hackborn } 51930d7189067524000c738c188c4ff91f84f474d25Dianne Hackborn 52030d7189067524000c738c188c4ff91f84f474d25Dianne Hackborn public void dump(String prefix, FileDescriptor fd, PrintWriter writer, String[] args) { 52130d7189067524000c738c188c4ff91f84f474d25Dianne Hackborn writer.print(prefix); writer.print("mId="); writer.print(mId); 52230d7189067524000c738c188c4ff91f84f474d25Dianne Hackborn writer.print(" mArgs="); writer.println(mArgs); 52330d7189067524000c738c188c4ff91f84f474d25Dianne Hackborn writer.print(prefix); writer.print("mCallbacks="); writer.println(mCallbacks); 52430d7189067524000c738c188c4ff91f84f474d25Dianne Hackborn writer.print(prefix); writer.print("mLoader="); writer.println(mLoader); 525a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn if (mLoader != null) { 526a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn mLoader.dump(prefix + " ", fd, writer, args); 527a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn } 5286e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn if (mHaveData || mDeliveredData) { 5296e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn writer.print(prefix); writer.print("mHaveData="); writer.print(mHaveData); 5306e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn writer.print(" mDeliveredData="); writer.println(mDeliveredData); 5316e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn writer.print(prefix); writer.print("mData="); writer.println(mData); 5326e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn } 53330d7189067524000c738c188c4ff91f84f474d25Dianne Hackborn writer.print(prefix); writer.print("mStarted="); writer.print(mStarted); 534afc4b283fdaedec9bf32492a019b43cc33edc9b6Dianne Hackborn writer.print(" mReportNextStart="); writer.print(mReportNextStart); 535f73c75ca20fcaaee1b0eeaaf756252c33e3099c6Dianne Hackborn writer.print(" mDestroyed="); writer.println(mDestroyed); 536afc4b283fdaedec9bf32492a019b43cc33edc9b6Dianne Hackborn writer.print(prefix); writer.print("mRetaining="); writer.print(mRetaining); 537afc4b283fdaedec9bf32492a019b43cc33edc9b6Dianne Hackborn writer.print(" mRetainingStarted="); writer.print(mRetainingStarted); 538afc4b283fdaedec9bf32492a019b43cc33edc9b6Dianne Hackborn writer.print(" mListenerRegistered="); writer.println(mListenerRegistered); 5396e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn if (mPendingLoader != null) { 5406e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn writer.print(prefix); writer.println("Pending Loader "); 5416e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn writer.print(mPendingLoader); writer.println(":"); 5426e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn mPendingLoader.dump(prefix + " ", fd, writer, args); 5436e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn } 54430d7189067524000c738c188c4ff91f84f474d25Dianne Hackborn } 545c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn } 546c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn 547a5fc6f006f67867417b7a427de6e7394c4312decTodd Kennedy LoaderManagerImpl(String who, FragmentHostCallback host, boolean started) { 54862bea2f1710be0d1a42c07109fd4307ded660d3bDianne Hackborn mWho = who; 549a5fc6f006f67867417b7a427de6e7394c4312decTodd Kennedy mHost = host; 550c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn mStarted = started; 551c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn } 552c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn 553a5fc6f006f67867417b7a427de6e7394c4312decTodd Kennedy void updateHostController(FragmentHostCallback host) { 554a5fc6f006f67867417b7a427de6e7394c4312decTodd Kennedy mHost = host; 555fb3cffeb35368da22f99b85d45039c4e6e471c06Dianne Hackborn } 556180202f2211d8c6bbb7a7057e61dafc90fe31930Adam Powell 557180202f2211d8c6bbb7a7057e61dafc90fe31930Adam Powell public FragmentHostCallback getFragmentHostCallback() { 558180202f2211d8c6bbb7a7057e61dafc90fe31930Adam Powell return mHost; 559180202f2211d8c6bbb7a7057e61dafc90fe31930Adam Powell } 560fb3cffeb35368da22f99b85d45039c4e6e471c06Dianne Hackborn 5612707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn private LoaderInfo createLoader(int id, Bundle args, 5622707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn LoaderManager.LoaderCallbacks<Object> callback) { 5632707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn LoaderInfo info = new LoaderInfo(id, args, (LoaderManager.LoaderCallbacks<Object>)callback); 5642707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn Loader<Object> loader = callback.onCreateLoader(id, args); 5652707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn info.mLoader = (Loader<Object>)loader; 5666e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn return info; 5676e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn } 5686e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn 5696e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn private LoaderInfo createAndInstallLoader(int id, Bundle args, 5706e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn LoaderManager.LoaderCallbacks<Object> callback) { 5716e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn try { 5726e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn mCreatingLoader = true; 5736e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn LoaderInfo info = createLoader(id, args, callback); 5746e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn installLoader(info); 5756e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn return info; 5766e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn } finally { 5776e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn mCreatingLoader = false; 5786e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn } 5796e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn } 5806e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn 5816e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn void installLoader(LoaderInfo info) { 5826e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn mLoaders.put(info.mId, info); 5832707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn if (mStarted) { 5844911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn // The activity will start all existing loaders in it's onStart(), 5854911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn // so only start them here if we're past that point of the activitiy's 5864911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn // life cycle 5874911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn info.start(); 5882707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn } 5892707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn } 5902707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn 5916e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn /** 5926e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn * Call to initialize a particular ID with a Loader. If this ID already 5936e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn * has a Loader associated with it, it is left unchanged and any previous 5946e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn * callbacks replaced with the newly provided ones. If there is not currently 5956e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn * a Loader for the ID, a new one is created and started. 5966e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn * 5976e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn * <p>This function should generally be used when a component is initializing, 5986e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn * to ensure that a Loader it relies on is created. This allows it to re-use 5996e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn * an existing Loader's data if there already is one, so that for example 6006e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn * when an {@link Activity} is re-created after a configuration change it 6016e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn * does not need to re-create its loaders. 6026e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn * 6036e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn * <p>Note that in the case where an existing Loader is re-used, the 6046e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn * <var>args</var> given here <em>will be ignored</em> because you will 6056e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn * continue using the previous Loader. 6066e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn * 6076e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn * @param id A unique (to this LoaderManager instance) identifier under 6086e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn * which to manage the new Loader. 6096e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn * @param args Optional arguments that will be propagated to 6106e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn * {@link LoaderCallbacks#onCreateLoader(int, Bundle) LoaderCallbacks.onCreateLoader()}. 6116e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn * @param callback Interface implementing management of this Loader. Required. 6126e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn * Its onCreateLoader() method will be called while inside of the function to 6136e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn * instantiate the Loader object. 6146e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn */ 6152707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn @SuppressWarnings("unchecked") 6162707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn public <D> Loader<D> initLoader(int id, Bundle args, LoaderManager.LoaderCallbacks<D> callback) { 6176e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn if (mCreatingLoader) { 6186e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn throw new IllegalStateException("Called while creating a loader"); 6196e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn } 6206e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn 6212707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn LoaderInfo info = mLoaders.get(id); 6222707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn 623a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn if (DEBUG) Log.v(TAG, "initLoader in " + this + ": args=" + args); 6245e0d59547c4042037e23a42ba4e2521721e9c7d3Dianne Hackborn 6252707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn if (info == null) { 6262707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn // Loader doesn't already exist; create. 6276e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn info = createAndInstallLoader(id, args, (LoaderManager.LoaderCallbacks<Object>)callback); 628a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn if (DEBUG) Log.v(TAG, " Created new loader " + info); 6292707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn } else { 630a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn if (DEBUG) Log.v(TAG, " Re-using existing loader " + info); 6312707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn info.mCallbacks = (LoaderManager.LoaderCallbacks<Object>)callback; 6322707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn } 6332707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn 6346e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn if (info.mHaveData && mStarted) { 6352707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn // If the loader has already generated its data, report it now. 636fb3cffeb35368da22f99b85d45039c4e6e471c06Dianne Hackborn info.callOnLoadFinished(info.mLoader, info.mData); 6372707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn } 6382707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn 6392707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn return (Loader<D>)info.mLoader; 6402707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn } 6412707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn 6426e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn /** 6436e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn * Call to re-create the Loader associated with a particular ID. If there 6446e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn * is currently a Loader associated with this ID, it will be 6456e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn * canceled/stopped/destroyed as appropriate. A new Loader with the given 6466e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn * arguments will be created and its data delivered to you once available. 6476e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn * 6486e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn * <p>This function does some throttling of Loaders. If too many Loaders 6496e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn * have been created for the given ID but not yet generated their data, 6506e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn * new calls to this function will create and return a new Loader but not 6516e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn * actually start it until some previous loaders have completed. 6526e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn * 6536e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn * <p>After calling this function, any previous Loaders associated with 6546e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn * this ID will be considered invalid, and you will receive no further 6556e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn * data updates from them. 6566e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn * 6576e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn * @param id A unique (to this LoaderManager instance) identifier under 6586e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn * which to manage the new Loader. 6596e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn * @param args Optional arguments that will be propagated to 6606e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn * {@link LoaderCallbacks#onCreateLoader(int, Bundle) LoaderCallbacks.onCreateLoader()}. 6616e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn * @param callback Interface implementing management of this Loader. Required. 6626e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn * Its onCreateLoader() method will be called while inside of the function to 6636e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn * instantiate the Loader object. 6646e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn */ 665c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn @SuppressWarnings("unchecked") 6662707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn public <D> Loader<D> restartLoader(int id, Bundle args, LoaderManager.LoaderCallbacks<D> callback) { 6676e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn if (mCreatingLoader) { 6686e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn throw new IllegalStateException("Called while creating a loader"); 6696e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn } 6706e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn 671c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn LoaderInfo info = mLoaders.get(id); 672a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn if (DEBUG) Log.v(TAG, "restartLoader in " + this + ": args=" + args); 673c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn if (info != null) { 6745e0d59547c4042037e23a42ba4e2521721e9c7d3Dianne Hackborn LoaderInfo inactive = mInactiveLoaders.get(id); 6755e0d59547c4042037e23a42ba4e2521721e9c7d3Dianne Hackborn if (inactive != null) { 6766e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn if (info.mHaveData) { 6775e0d59547c4042037e23a42ba4e2521721e9c7d3Dianne Hackborn // This loader now has data... we are probably being 6785e0d59547c4042037e23a42ba4e2521721e9c7d3Dianne Hackborn // called from within onLoadComplete, where we haven't 6795e0d59547c4042037e23a42ba4e2521721e9c7d3Dianne Hackborn // yet destroyed the last inactive loader. So just do 6805e0d59547c4042037e23a42ba4e2521721e9c7d3Dianne Hackborn // that now. 681a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn if (DEBUG) Log.v(TAG, " Removing last inactive loader: " + info); 6826e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn inactive.mDeliveredData = false; 6835e0d59547c4042037e23a42ba4e2521721e9c7d3Dianne Hackborn inactive.destroy(); 684260c3c77d9b340164e055f87002c64d78da6e836Dianne Hackborn info.mLoader.abandon(); 6855e0d59547c4042037e23a42ba4e2521721e9c7d3Dianne Hackborn mInactiveLoaders.put(id, info); 6865e0d59547c4042037e23a42ba4e2521721e9c7d3Dianne Hackborn } else { 6875e0d59547c4042037e23a42ba4e2521721e9c7d3Dianne Hackborn // We already have an inactive loader for this ID that we are 688e5552be22a016dd8b79026f56b071ab128d5a904Adam Powell // waiting for! Try to cancel; if this returns true then the task is still 689e5552be22a016dd8b79026f56b071ab128d5a904Adam Powell // running and we have more work to do. 690e5552be22a016dd8b79026f56b071ab128d5a904Adam Powell if (!info.cancel()) { 691e5552be22a016dd8b79026f56b071ab128d5a904Adam Powell // The current Loader has not been started or was successfully canceled, 692e5552be22a016dd8b79026f56b071ab128d5a904Adam Powell // we thus have no reason to keep it around. Remove it and a new 693e5552be22a016dd8b79026f56b071ab128d5a904Adam Powell // LoaderInfo will be created below. 6946e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn if (DEBUG) Log.v(TAG, " Current loader is stopped; replacing"); 6956e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn mLoaders.put(id, null); 6966e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn info.destroy(); 6976e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn } else { 6986e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn // Now we have three active loaders... we'll queue 6996e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn // up this request to be processed once one of the other loaders 700e5552be22a016dd8b79026f56b071ab128d5a904Adam Powell // finishes. 701e5552be22a016dd8b79026f56b071ab128d5a904Adam Powell if (DEBUG) Log.v(TAG, 702e5552be22a016dd8b79026f56b071ab128d5a904Adam Powell " Current loader is running; configuring pending loader"); 7036e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn if (info.mPendingLoader != null) { 7046e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn if (DEBUG) Log.v(TAG, " Removing pending loader: " + info.mPendingLoader); 7056e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn info.mPendingLoader.destroy(); 7066e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn info.mPendingLoader = null; 7076e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn } 7086e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn if (DEBUG) Log.v(TAG, " Enqueuing as new pending loader"); 7096e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn info.mPendingLoader = createLoader(id, args, 7106e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn (LoaderManager.LoaderCallbacks<Object>)callback); 7116e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn return (Loader<D>)info.mPendingLoader.mLoader; 7126e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn } 7135e0d59547c4042037e23a42ba4e2521721e9c7d3Dianne Hackborn } 7142707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn } else { 7152707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn // Keep track of the previous instance of this loader so we can destroy 7162707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn // it when the new one completes. 717a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn if (DEBUG) Log.v(TAG, " Making last loader inactive: " + info); 718260c3c77d9b340164e055f87002c64d78da6e836Dianne Hackborn info.mLoader.abandon(); 7192707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn mInactiveLoaders.put(id, info); 7202707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn } 721c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn } 722c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn 7236e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn info = createAndInstallLoader(id, args, (LoaderManager.LoaderCallbacks<Object>)callback); 7242707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn return (Loader<D>)info.mLoader; 725c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn } 726c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn 7276e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn /** 7286e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn * Rip down, tear apart, shred to pieces a current Loader ID. After returning 7296e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn * from this function, any Loader objects associated with this ID are 7306e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn * destroyed. Any data associated with them is destroyed. You better not 7316e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn * be using it when you do this. 7326e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn * @param id Identifier of the Loader to be destroyed. 7336e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn */ 734c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn public void destroyLoader(int id) { 7356e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn if (mCreatingLoader) { 7366e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn throw new IllegalStateException("Called while creating a loader"); 7376e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn } 7386e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn 739a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn if (DEBUG) Log.v(TAG, "destroyLoader in " + this + " of " + id); 7402707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn int idx = mLoaders.indexOfKey(id); 7412707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn if (idx >= 0) { 7422707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn LoaderInfo info = mLoaders.valueAt(idx); 7432707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn mLoaders.removeAt(idx); 7444911b783aa9f4af5ac919db861751d350471f5efDianne Hackborn info.destroy(); 745c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn } 746f73c75ca20fcaaee1b0eeaaf756252c33e3099c6Dianne Hackborn idx = mInactiveLoaders.indexOfKey(id); 747f73c75ca20fcaaee1b0eeaaf756252c33e3099c6Dianne Hackborn if (idx >= 0) { 748f73c75ca20fcaaee1b0eeaaf756252c33e3099c6Dianne Hackborn LoaderInfo info = mInactiveLoaders.valueAt(idx); 749f73c75ca20fcaaee1b0eeaaf756252c33e3099c6Dianne Hackborn mInactiveLoaders.removeAt(idx); 750f73c75ca20fcaaee1b0eeaaf756252c33e3099c6Dianne Hackborn info.destroy(); 751f73c75ca20fcaaee1b0eeaaf756252c33e3099c6Dianne Hackborn } 752a5fc6f006f67867417b7a427de6e7394c4312decTodd Kennedy if (mHost != null && !hasRunningLoaders()) { 753a5fc6f006f67867417b7a427de6e7394c4312decTodd Kennedy mHost.mFragmentManager.startPendingDeferredFragments(); 75437510908a7b570accb2c4829842790b3d9d3a102Adam Powell } 755c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn } 756c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn 7576e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn /** 7586e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn * Return the most recent Loader object associated with the 7596e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn * given ID. 7606e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn */ 761c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn @SuppressWarnings("unchecked") 762c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn public <D> Loader<D> getLoader(int id) { 7636e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn if (mCreatingLoader) { 7646e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn throw new IllegalStateException("Called while creating a loader"); 7656e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn } 7666e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn 767c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn LoaderInfo loaderInfo = mLoaders.get(id); 768c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn if (loaderInfo != null) { 7696e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn if (loaderInfo.mPendingLoader != null) { 7706e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn return (Loader<D>)loaderInfo.mPendingLoader.mLoader; 7716e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn } 7726e1bf6a3054674281bafd270165c99cb2423666dDianne Hackborn return (Loader<D>)loaderInfo.mLoader; 773c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn } 774c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn return null; 775c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn } 776c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn 777c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn void doStart() { 778a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn if (DEBUG) Log.v(TAG, "Starting in " + this); 779fb3cffeb35368da22f99b85d45039c4e6e471c06Dianne Hackborn if (mStarted) { 780fb3cffeb35368da22f99b85d45039c4e6e471c06Dianne Hackborn RuntimeException e = new RuntimeException("here"); 781fb3cffeb35368da22f99b85d45039c4e6e471c06Dianne Hackborn e.fillInStackTrace(); 782fb3cffeb35368da22f99b85d45039c4e6e471c06Dianne Hackborn Log.w(TAG, "Called doStart when already started: " + this, e); 783fb3cffeb35368da22f99b85d45039c4e6e471c06Dianne Hackborn return; 784fb3cffeb35368da22f99b85d45039c4e6e471c06Dianne Hackborn } 785fb3cffeb35368da22f99b85d45039c4e6e471c06Dianne Hackborn 786c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn mStarted = true; 787c91893511dc1b9e634648406c9ae61b15476e65dDianne Hackborn 788c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn // Call out to sub classes so they can start their loaders 789c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn // Let the existing loaders know that we want to be notified when a load is complete 790c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn for (int i = mLoaders.size()-1; i >= 0; i--) { 7912707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn mLoaders.valueAt(i).start(); 792c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn } 793c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn } 794c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn 795c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn void doStop() { 796a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn if (DEBUG) Log.v(TAG, "Stopping in " + this); 797fb3cffeb35368da22f99b85d45039c4e6e471c06Dianne Hackborn if (!mStarted) { 798fb3cffeb35368da22f99b85d45039c4e6e471c06Dianne Hackborn RuntimeException e = new RuntimeException("here"); 799fb3cffeb35368da22f99b85d45039c4e6e471c06Dianne Hackborn e.fillInStackTrace(); 800fb3cffeb35368da22f99b85d45039c4e6e471c06Dianne Hackborn Log.w(TAG, "Called doStop when not started: " + this, e); 801fb3cffeb35368da22f99b85d45039c4e6e471c06Dianne Hackborn return; 802fb3cffeb35368da22f99b85d45039c4e6e471c06Dianne Hackborn } 8035e0d59547c4042037e23a42ba4e2521721e9c7d3Dianne Hackborn 804c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn for (int i = mLoaders.size()-1; i >= 0; i--) { 8052707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn mLoaders.valueAt(i).stop(); 806c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn } 807c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn mStarted = false; 808c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn } 809c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn 8102707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn void doRetain() { 811a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn if (DEBUG) Log.v(TAG, "Retaining in " + this); 812fb3cffeb35368da22f99b85d45039c4e6e471c06Dianne Hackborn if (!mStarted) { 813fb3cffeb35368da22f99b85d45039c4e6e471c06Dianne Hackborn RuntimeException e = new RuntimeException("here"); 814fb3cffeb35368da22f99b85d45039c4e6e471c06Dianne Hackborn e.fillInStackTrace(); 815fb3cffeb35368da22f99b85d45039c4e6e471c06Dianne Hackborn Log.w(TAG, "Called doRetain when not started: " + this, e); 816fb3cffeb35368da22f99b85d45039c4e6e471c06Dianne Hackborn return; 817fb3cffeb35368da22f99b85d45039c4e6e471c06Dianne Hackborn } 8185e0d59547c4042037e23a42ba4e2521721e9c7d3Dianne Hackborn 8192707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn mRetaining = true; 8202707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn mStarted = false; 8212707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn for (int i = mLoaders.size()-1; i >= 0; i--) { 8222707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn mLoaders.valueAt(i).retain(); 8232707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn } 8242707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn } 8252707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn 8262707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn void finishRetain() { 827a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn if (mRetaining) { 828a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn if (DEBUG) Log.v(TAG, "Finished Retaining in " + this); 8295e0d59547c4042037e23a42ba4e2521721e9c7d3Dianne Hackborn 830a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn mRetaining = false; 831a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn for (int i = mLoaders.size()-1; i >= 0; i--) { 832a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn mLoaders.valueAt(i).finishRetain(); 833a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn } 8342707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn } 8352707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn } 8362707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn 837afc4b283fdaedec9bf32492a019b43cc33edc9b6Dianne Hackborn void doReportNextStart() { 838afc4b283fdaedec9bf32492a019b43cc33edc9b6Dianne Hackborn for (int i = mLoaders.size()-1; i >= 0; i--) { 839afc4b283fdaedec9bf32492a019b43cc33edc9b6Dianne Hackborn mLoaders.valueAt(i).mReportNextStart = true; 840afc4b283fdaedec9bf32492a019b43cc33edc9b6Dianne Hackborn } 841afc4b283fdaedec9bf32492a019b43cc33edc9b6Dianne Hackborn } 842afc4b283fdaedec9bf32492a019b43cc33edc9b6Dianne Hackborn 843afc4b283fdaedec9bf32492a019b43cc33edc9b6Dianne Hackborn void doReportStart() { 844afc4b283fdaedec9bf32492a019b43cc33edc9b6Dianne Hackborn for (int i = mLoaders.size()-1; i >= 0; i--) { 845afc4b283fdaedec9bf32492a019b43cc33edc9b6Dianne Hackborn mLoaders.valueAt(i).reportStart(); 846afc4b283fdaedec9bf32492a019b43cc33edc9b6Dianne Hackborn } 847afc4b283fdaedec9bf32492a019b43cc33edc9b6Dianne Hackborn } 848afc4b283fdaedec9bf32492a019b43cc33edc9b6Dianne Hackborn 849c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn void doDestroy() { 8502707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn if (!mRetaining) { 851a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn if (DEBUG) Log.v(TAG, "Destroying Active in " + this); 852c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn for (int i = mLoaders.size()-1; i >= 0; i--) { 8532707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn mLoaders.valueAt(i).destroy(); 854c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn } 8551da8e8ce8912b79a5ed7cd3865a3913ee9bfb1d9Roman Mazur mLoaders.clear(); 856c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn } 8572707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn 858a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn if (DEBUG) Log.v(TAG, "Destroying Inactive in " + this); 8592707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn for (int i = mInactiveLoaders.size()-1; i >= 0; i--) { 8602707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn mInactiveLoaders.valueAt(i).destroy(); 8612707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn } 8622707d6026240bcca6f0e35e2e1138958882e90ceDianne Hackborn mInactiveLoaders.clear(); 863e6f7daeb469ee4242416270b803e06909436d90eGeorge Mount mHost = null; 864c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn } 86530d7189067524000c738c188c4ff91f84f474d25Dianne Hackborn 86630d7189067524000c738c188c4ff91f84f474d25Dianne Hackborn @Override 867a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn public String toString() { 868a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn StringBuilder sb = new StringBuilder(128); 869a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn sb.append("LoaderManager{"); 870a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn sb.append(Integer.toHexString(System.identityHashCode(this))); 871a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn sb.append(" in "); 872a5fc6f006f67867417b7a427de6e7394c4312decTodd Kennedy DebugUtils.buildShortClassTag(mHost, sb); 873a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn sb.append("}}"); 874a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn return sb.toString(); 875a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn } 876a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn 877a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn @Override 87830d7189067524000c738c188c4ff91f84f474d25Dianne Hackborn public void dump(String prefix, FileDescriptor fd, PrintWriter writer, String[] args) { 87930d7189067524000c738c188c4ff91f84f474d25Dianne Hackborn if (mLoaders.size() > 0) { 88030d7189067524000c738c188c4ff91f84f474d25Dianne Hackborn writer.print(prefix); writer.println("Active Loaders:"); 88130d7189067524000c738c188c4ff91f84f474d25Dianne Hackborn String innerPrefix = prefix + " "; 88230d7189067524000c738c188c4ff91f84f474d25Dianne Hackborn for (int i=0; i < mLoaders.size(); i++) { 88330d7189067524000c738c188c4ff91f84f474d25Dianne Hackborn LoaderInfo li = mLoaders.valueAt(i); 88430d7189067524000c738c188c4ff91f84f474d25Dianne Hackborn writer.print(prefix); writer.print(" #"); writer.print(mLoaders.keyAt(i)); 885a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn writer.print(": "); writer.println(li.toString()); 88630d7189067524000c738c188c4ff91f84f474d25Dianne Hackborn li.dump(innerPrefix, fd, writer, args); 88730d7189067524000c738c188c4ff91f84f474d25Dianne Hackborn } 88830d7189067524000c738c188c4ff91f84f474d25Dianne Hackborn } 88930d7189067524000c738c188c4ff91f84f474d25Dianne Hackborn if (mInactiveLoaders.size() > 0) { 89030d7189067524000c738c188c4ff91f84f474d25Dianne Hackborn writer.print(prefix); writer.println("Inactive Loaders:"); 89130d7189067524000c738c188c4ff91f84f474d25Dianne Hackborn String innerPrefix = prefix + " "; 89230d7189067524000c738c188c4ff91f84f474d25Dianne Hackborn for (int i=0; i < mInactiveLoaders.size(); i++) { 89330d7189067524000c738c188c4ff91f84f474d25Dianne Hackborn LoaderInfo li = mInactiveLoaders.valueAt(i); 89430d7189067524000c738c188c4ff91f84f474d25Dianne Hackborn writer.print(prefix); writer.print(" #"); writer.print(mInactiveLoaders.keyAt(i)); 895a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn writer.print(": "); writer.println(li.toString()); 89630d7189067524000c738c188c4ff91f84f474d25Dianne Hackborn li.dump(innerPrefix, fd, writer, args); 89730d7189067524000c738c188c4ff91f84f474d25Dianne Hackborn } 89830d7189067524000c738c188c4ff91f84f474d25Dianne Hackborn } 89930d7189067524000c738c188c4ff91f84f474d25Dianne Hackborn } 900635c60af623c73d2409f5729c0953638b5d6c497Adam Powell 901635c60af623c73d2409f5729c0953638b5d6c497Adam Powell public boolean hasRunningLoaders() { 902635c60af623c73d2409f5729c0953638b5d6c497Adam Powell boolean loadersRunning = false; 903635c60af623c73d2409f5729c0953638b5d6c497Adam Powell final int count = mLoaders.size(); 904635c60af623c73d2409f5729c0953638b5d6c497Adam Powell for (int i = 0; i < count; i++) { 905635c60af623c73d2409f5729c0953638b5d6c497Adam Powell final LoaderInfo li = mLoaders.valueAt(i); 906635c60af623c73d2409f5729c0953638b5d6c497Adam Powell loadersRunning |= li.mStarted && !li.mDeliveredData; 907635c60af623c73d2409f5729c0953638b5d6c497Adam Powell } 908635c60af623c73d2409f5729c0953638b5d6c497Adam Powell return loadersRunning; 909635c60af623c73d2409f5729c0953638b5d6c497Adam Powell } 910c801768e4d29667a2608695449ebc2833ba0f200Dianne Hackborn} 911