Code example for AsyncQueryHandler

Methods: startQuery

        Uri search = Uri.parse("content://media/external/audio/search/fancy/" + Uri.encode(filter));
        Cursor ret = null;
        if (async != null) {
            async.startQuery(0, null, search, ccols, null, null, null);
        } else { 
            ret = MusicUtils.query(this, search, ccols, null, null, null);
        return ret;
    static class QueryListAdapter extends SimpleCursorAdapter {
        private QueryBrowserActivity mActivity = null;
        private final AsyncQueryHandler mQueryHandler;
        private String mConstraint = null;
        private boolean mConstraintIsValid = false;
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