android-cursorloader

Custom CursorAdapter and CheckBox states

由 最后都变了- 提交于 2019-12-08 09:16:07
问题 I have a problem with trying to use a suggested CursorAdapter implementation together with a CursorLoader. The CursorAdapter works beatifully when I can provide it with a static set of data through a Cursor, but when I try and combine this with a CursorLoader I get a problem with nullpointers. I have pinned it down to the fact that when I feed the adapter a cursor, it is initially empty (set to null as is frequently suggested when dealing with a CursorLoader implementation). The Adapter, on

Migrating to CursorLoader & LoaderManager for AutoCompleteTextView with SQLiteDatabase

由 爱⌒轻易说出口 提交于 2019-12-08 08:41:05
问题 I have an AutoCompleteTextView , which shows dropdown list of suggestions taken from a SQLiteDatabase query. At the moment it uses SimpleCursorAdapter , however there are several problems with it (I have a separate question about the issue here: SimpleCursorAdapter issue - "java.lang.IllegalStateException: trying to requery an already closed cursor"). Nevertheless, I was advised to look in the direction of CursorLoader and LoaderManager , and I've tried it, yet couldn't make it work . I'd be

Migrating to CursorLoader & LoaderManager for AutoCompleteTextView with SQLiteDatabase

由 戏子无情 提交于 2019-12-06 15:50:48
I have an AutoCompleteTextView , which shows dropdown list of suggestions taken from a SQLiteDatabase query. At the moment it uses SimpleCursorAdapter , however there are several problems with it (I have a separate question about the issue here: SimpleCursorAdapter issue - "java.lang.IllegalStateException: trying to requery an already closed cursor" ). Nevertheless, I was advised to look in the direction of CursorLoader and LoaderManager , and I've tried it, yet couldn't make it work . I'd be grateful if someone would guide/recommend/show the right way of migrating my code below to

swapCursor() slow: “The application may be doing too much work on its main thread.”

由 ◇◆丶佛笑我妖孽 提交于 2019-12-06 15:02:35
问题 I keep seeing "The application may be doing too much work on its main thread." Is this being caused by swapCursor() in my code below? It appears so: if I remove it, the above warning disappears. I still don't understand why it claims to be the main thread that is causing the problem. I have moved the swapCursor() around into various places such as onLoadFinished() and in loadInBackground() but I get the same result. How can I call swapCursor() so that this warning doesn't appear? The whole

Android DBFlow and CursorLoader

由 风流意气都作罢 提交于 2019-12-06 15:02:13
问题 Anyone knows how to use cursorLoader with DBFlow ? I seen this issue but this is not added to DBFlow. Thanks. 回答1: You can find official docs here or you can implement it the way i have DBFlow ver used 3 //I have edited my answer & provided easier way for content provider part below add this to manifest inside application <provider android:authorities="com.hashx19.pristinekashmir.mycontentprovider" android:exported="false" android:name=".MyContentProvider"/> Create java file named

RejectedExecutionException 128 Active Threads AsyncTaskLoader

由 ぐ巨炮叔叔 提交于 2019-12-06 13:06:07
I've searched around for solutions to RejectedExecutionException using AsyncTaskLoader but none have worked. Most of them are for AsyncTask like https://github.com/commonsguy/cwac-task/blob/master/src/com/commonsware/cwac/task/AsyncTaskEx.java but AsyncTaskLoader is kind of different. The first thing I tried was in onCreateLoader() doing this before returning a CursorLoader. if (loaderCount >= 100) { cursorLoader.setUpdateThrottle(1000000000); } All that really does is stop the loaders after 100 which is not what I want. I tried toying around with different values but it seemed like a waste of

Handle CursorLoader exceptions

由 社会主义新天地 提交于 2019-12-06 01:40:04
问题 I have a Fragment implementing LoaderManager and using CursorLoader (nothing fancy). I want to catch exceptions thrown during the query but I don't see how!!! Any help? Thx. 回答1: You would need to derive from CursorLoader to do it. Something like this: class MyCursorLoader extends CursorLoader { public MyCursorLoader(Context context) { super(context) } public CursorLoader(Context context, Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) { super(context

IllegalStateException - Support LoaderManager with AutocompleteTextView

由 梦想的初衷 提交于 2019-12-06 00:24:03
问题 One of the benefits I thought of using CursorLoaders and Loadermanagers was that you didn't need to manually manage the lifecycle of the cursor. So I used a loadermanager to bind an adapter to an AutoCompleteTextView using the support package. It works quite well except that it randomly throws an error saying "IllegalStateException - attempt to re-open an already closed object". Surely that's not supposed to happen if we're using the loader manager? Here's the code: package com.bhagwad.tennis

SherlockFragmentActivity with multiple ListFragments and SQLite cursor battles

由 99封情书 提交于 2019-12-05 21:19:16
I am using an Activity that extends SherlockFragmentActivity , that has 3 tabs. The 3 tabs are ListFragments that implement LoaderManager.LoaderCallbacks . The OnCreate method for the Activity loads the tabs like so bar.addTab(bar.newTab() .setTag("venues_list") .setText(getString(R.string.list_venues_header)) .setTabListener(new TabListener<VenueListFragment>( this, getString(R.string.list_invites_header), VenueListFragment.class, null))); // I do the EXACT same thing for the other two tabs, using their respective ListFragments if (savedInstanceState != null) { bar.setSelectedNavigationItem

Display Album and Artist in listview with LoaderManager and CursorLoader

由 妖精的绣舞 提交于 2019-12-05 19:34:44
I have a ListFragment whose list should diplay the Albums of the device and the associated artist using MediaStore . Each row has thus two TextViews . I'm using LoaderManager and CursorLoader to fill the list up, with a custom CursorAdapter in order to bind the TextViews of the row to the data. ListFragment Code : public class AlbumsFragment extends ListFragment implements LoaderManager.LoaderCallbacks<Cursor> { AlbumsAdapter mAdapter; @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View myFragmentView = inflater.inflate(R.layout
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