Sample ContentProvider that performs all operations transactionally and notifies once in batch operations.

MyContentProvider.java

public class MyContentProvider extends ContentProvider {
	private final ThreadLocal<Boolean> mApplyingBatch;
	private final ThreadLocal<Set<Uri>> mChangedUris;

	private boolean applyingBatch() {
		return mApplyingBatch.get() != null && mApplyingBatch.get();
	}

	private Uri insert(final Uri uri, final ContentValues values, final SQLiteDatabase db) {
		// do the uri matching and insert
		return resultUri;
	}

	@Override
	public Uri insert(final Uri uri, final ContentValues values) {
		/* 
		 * there are no observers on content that does not exist
		 * so we add the base uri to the set for batch operations
		 * for delete/update we notify with the id instead.
		*/
		final SQLiteDatabase db = getDatabase(getContext());
		if (!applyingBatch()) {
			mChangedUris.set(new HashSet<Uri>());
			db.beginTransaction();
			try {
				Uri resultUri = insert(uri, values, db);
				db.setTransactionSuccessful();
				mChangedUris.get().add(uri);	
				return resultUri;
			} finally {
				db.endTransaction();
				onOperationComplete();	
			}
		} else {
			Uri resultUri = insert(uri, values, db);
			mChangedUris.get().add(uri);
			return resultUri;
		}
	}

	@Override
	public ContentProviderResult[] applyBatch(ArrayList<ContentProviderOperation> operations)
			throws OperationApplicationException {

		mChangedUris.set(new HashSet<Uri>());
		db.beginTransaction();
		try {
			mApplyingBatch.set(true);
			final int numOperations = operations.size();
			final ContentProviderResult[] results = new ContentProviderResult[numOperations];
			for (int i = 0; i < numOperations; i++) {
				results[i] = operations.get(i).apply(this, results, i);
			}
			db.setTransactionSuccessful();
			return results;
		} finally {
			db.endTransaction();
			mApplyingBatch.set(false);
			onOperationComplete();
		}
	}

	private void onOperationComplete() {
		for (Uri uri : mChangedUris.get()) {
			getContext().getContentResolver().notifyChange(uri, null);
		}
	}

	@Override
	public int bulkInsert(final Uri uri, final ContentValues[] values) {
		// for performance we dont want to call this.insert, better only match Uri once here
		final SQLiteDatabase db = getDatabase(getContext());
		int numberInserted = 0;
		db.beginTransaction();
		try {
			// iterate through values and do your db.insert satements
		} finally {
			db.endTransaction();
		}

		// now just notify the base url
		getContext().getContentResolver().notifyChange(uri, null);
		return numberInserted;
	}
}

this is beautiful.. thanks ...