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2014/10/16 ¤W¤È 08:15:56
android Programming Glossary: initloaderSimpleCursorTreeAdapter and CursorLoader for ExpandableListView http://stackoverflow.com/questions/10611927/simplecursortreeadapter-and-cursorloader-for-expandablelistview savedInstanceState populateContactList getLoaderManager .initLoader 1 null this public Loader Cursor onCreateLoader int id Bundle.. groupId null mFragment else mActivity.getLoaderManager .initLoader groupId null mFragment The problem is that when i click one.. the value of ContactsContract.Groups._ID to pass into the initLoader call. I also changed the logic to call restartLoader only when..
Android: LoaderCallbacks.OnLoadFinished called twice http://stackoverflow.com/questions/11293441/android-loadercallbacks-onloadfinished-called-twice Android Loaders and Fragments. When I invoke LoaderManager.initLoader after orientation change onLoadFinished is not called although.. loader share improve this question You can put the initLoader method inside your Fragment's onResume callback then the Loader's..
AsyncTaskLoader onLoadFinished with a pending task and config change http://stackoverflow.com/questions/11515934/asynctaskloader-onloadfinished-with-a-pending-task-and-config-change .findFragmentById R.id.result_fragment getLoaderManager .initLoader 0 null this @Override protected void onDestroy super.onDestroy.. issue by looking at the source for LoaderManager . When initLoader is called after the configuration change the LoaderInfo object.. of LoaderCallbacks as I would expect. public D Loader D initLoader int id Bundle args LoaderManager.LoaderCallbacks D callback..
http://stackoverflow.com/questions/7120813/asynctaskloader-vs-asynctask kick the right loader when you call initLoader in your Activity You need to use the LoaderManager to interface..
LoaderCallbacks.onLoadFinished not called if orientation change happens during AsyncTaskLoader run http://stackoverflow.com/questions/7166363/loadercallbacks-onloadfinished-not-called-if-orientation-change-happens-during-a the loader callbacks. In the source for LoaderManager.initLoader I see that if the loader already exists the new callback is.. Nikolay identified the issue Thank you. I was calling initLoader fron onResume . The Android documentation states You typically.. dealing with configuration change life cycle. I moved my initLoader call to onCreate and that solved my problem. I think the reason..
What are the benefits of CursorLoaders? http://stackoverflow.com/questions/7182920/what-are-the-benefits-of-cursorloaders which obviously takes Uris but how does this mesh with the initLoader method Must I set up each of my Fragments to use Loaders individually.. can persist even beyond a single Activity . LoaderManager.initLoader and LoaderManager.restartLoader allow you to reconnect with.. implement the LoaderManager.Callback interface. Calling initLoader will result in the onCreateLoader method where you will construct..
Initializing a Loader in an Activity http://stackoverflow.com/questions/9918397/initializing-a-loader-in-an-activity setContentView R.layout.main getLoaderManager .initLoader 0 null this public Loader SampleLoader.SampleLoaderResult onCreateLoader.. loader However eclipse gives an error stating The method initLoader int Bundle LoaderManager.LoaderCallbacks in the type LoaderManager.. setContentView R.layout.main getSupportLoaderManager .initLoader 0 null this @Override public Loader Object onCreateLoader int..
SimpleCursorTreeAdapter and CursorLoader for ExpandableListView http://stackoverflow.com/questions/10611927/simplecursortreeadapter-and-cursorloader-for-expandablelistview Bundle savedInstanceState super.onActivityCreated savedInstanceState populateContactList getLoaderManager .initLoader 1 null this public Loader Cursor onCreateLoader int id Bundle args This is called when a new Loader needs to be created... null loader.isReset mActivity.getLoaderManager .restartLoader groupId null mFragment else mActivity.getLoaderManager .initLoader groupId null mFragment The problem is that when i click one of the parent groups one of three things happens in what appears.. method. I am now selecting the groupCursor position not the value of ContactsContract.Groups._ID to pass into the initLoader call. I also changed the logic to call restartLoader only when loader is not null and loader isReset is false. protected..
Android: LoaderCallbacks.OnLoadFinished called twice http://stackoverflow.com/questions/11293441/android-loadercallbacks-onloadfinished-called-twice called twice I noticed strange situation using Android Loaders and Fragments. When I invoke LoaderManager.initLoader after orientation change onLoadFinished is not called although documentation suggests I should be prepared for this but.. check if this happens and it does. Anyone noticed this android loader share improve this question You can put the initLoader method inside your Fragment's onResume callback then the Loader's onLoadFinished will not be called twice anymore. @Override..
AsyncTaskLoader onLoadFinished with a pending task and config change http://stackoverflow.com/questions/11515934/asynctaskloader-onloadfinished-with-a-pending-task-and-config-change resultFragment ResultFragment getFragmentManager .findFragmentById R.id.result_fragment getLoaderManager .initLoader 0 null this @Override protected void onDestroy super.onDestroy Log.d DemoActivity onDestroy for myActivityId @Override public.. automatically. EDIT I think I may have tracked down the issue by looking at the source for LoaderManager . When initLoader is called after the configuration change the LoaderInfo object has its mCallbacks field updated with the new activity as.. field updated with the new activity as the implementation of LoaderCallbacks as I would expect. public D Loader D initLoader int id Bundle args LoaderManager.LoaderCallbacks D callback if mCreatingLoader throw new IllegalStateException Called while..
http://stackoverflow.com/questions/7120813/asynctaskloader-vs-asynctask change occurs by saving instances using onRetainNonConfigurationInstance kick the right loader when you call initLoader in your Activity You need to use the LoaderManager to interface with the loaders and provide the needed callbacks to create..
LoaderCallbacks.onLoadFinished not called if orientation change happens during AsyncTaskLoader run http://stackoverflow.com/questions/7166363/loadercallbacks-onloadfinished-not-called-if-orientation-change-happens-during-a onLoadFinished gets called as expected. My Activity implements the loader callbacks. In the source for LoaderManager.initLoader I see that if the loader already exists the new callback is set to the LoaderInfo inner object class but I don't see where.. orientation change android share improve this question Nikolay identified the issue Thank you. I was calling initLoader fron onResume . The Android documentation states You typically initialize a Loader within the activity's onCreate method.. typically as a bit more emphatic than I did when it comes to dealing with configuration change life cycle. I moved my initLoader call to onCreate and that solved my problem. I think the reason is that in FragmentActivity.onCreate a collection of LoaderManagers..
What are the benefits of CursorLoaders? http://stackoverflow.com/questions/7182920/what-are-the-benefits-of-cursorloaders for example And I use a ContentProvider to deal with data which obviously takes Uris but how does this mesh with the initLoader method Must I set up each of my Fragments to use Loaders individually And how unique does the id need to be for each loader.. have to manage the cursor directly and now the connection can persist even beyond a single Activity . LoaderManager.initLoader and LoaderManager.restartLoader allow you to reconnect with an existing Loader already set up for your query and in some.. if it is available. Your Activity or Fragment will likely now implement the LoaderManager.Callback interface. Calling initLoader will result in the onCreateLoader method where you will construct the query and a new CursorLoader instance if necessary...
Initializing a Loader in an Activity http://stackoverflow.com/questions/9918397/initializing-a-loader-in-an-activity onCreate Bundle savedInstanceState super.onCreate savedInstanceState setContentView R.layout.main getLoaderManager .initLoader 0 null this public Loader SampleLoader.SampleLoaderResult onCreateLoader int id Bundle args return new SampleLoader getBaseContext.. void onLoaderReset Loader SampleLoader.SampleLoaderResult loader However eclipse gives an error stating The method initLoader int Bundle LoaderManager.LoaderCallbacks in the type LoaderManager is not applicable for the arguments int null ActivitySwitchActivity.. Bundle savedInstanceState super.onCreate savedInstanceState setContentView R.layout.main getSupportLoaderManager .initLoader 0 null this @Override public Loader Object onCreateLoader int i Bundle bundle return null TODO @Override public void onLoadFinished..
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