android-contentprovider

I'm trying to load an email attachment in my application. I can get the content, but I cannot get the file name. Here's how my intent filter looks like: <intent-filter> <action android:name="android.intent.action.VIEW" /> <category android:name="android.intent.category.DEFAULT" /> <data android:mimeType="image/jpeg" /> </intent-filter> Here is what I get: INFO/ActivityManager(97): Starting: Intent { act=android.intent.action.VIEW dat=content://gmail-ls/messages/john.doe%40gmail.com/42/attachments/0.1/SIMPLE/false typ=image/jpeg flg=0x3880001 cmp=com.myapp/.ui.email.EmailDocumentActivityJpeg }

I'm trying to batch delete some items in a table. String ids = { "1", "2", "3" }; mContentResolver.delete(uri, MyTables._ID + "=?", ids); However I keep getting this following error java.lang.IllegalArgumentException: Too many bind arguments. 3 arguments were provided but the statement needs 1 arguments. The error occurs because you have a single placeholder (?) in your where clause, while you pass three arguments. You should do: String ids = { "1", "2", "3" }; mContentResolver.delete(uri, MyTables._ID + "=? OR " + MyTables._ID + "=? OR " + MyTables._ID + "=?", ids); I do not know if SQLite

I'm using this code to copy an image using documentFile.createFile() private void newcopyFile(File fileInput, String outputParentPath, String mimeType, String newFileName) { DocumentFile documentFileGoal = DocumentFile.fromTreeUri(this, treeUri); String[] parts = outputParentPath.split("\\/"); for (int i = 3; i < parts.length; i++) { if (documentFileGoal != null) { documentFileGoal = documentFileGoal.findFile(parts[i]); } } if (documentFileGoal == null) { Toast.makeText(MainActivity.this, "Directory not found", Toast.LENGTH_SHORT).show(); return; } DocumentFile documentFileNewFile =

I am using a ContentProvider to query a database and return a Cursor that is used in a CursorLoader : ItemsActivity: public class ItemsActivity extends SherlockActivity implements LoaderCallbacks<Cursor> { @Override public void onCreate(Bundle savedInstance) { .... getSupportLoaderManager().initLoader(LOADER_ID, null, this); ... } @Override public Loader<Cursor> onCreateLoader(int loaderId, Bundle bundle) { return new CursorLoader(getApplicationContext(), itemsListUri, ...); } ... } ItemsContentProvider: public Cursor query(Uri uri, String[] projection, String selection, ...) {

I'm a little confused about content providers. If I have multiple activities in my application do they each get their own instance of the content provider? it's just essentially a class/interface? In one activity I will have many threads simultaneously writing to the database. How do I deal with allowing one thread to write at a time? Do I just catch SQLiteDatabaseLockedException, put the thread to sleep then retry? Or is there a better way? Are the database locks released when an activity pauses/is destroyed? If so could I just create a synchronized lock against the content provider itself?