Example usage for android.content AsyncQueryHandler startQuery

Introduction

In this page you can find the example usage for android.content AsyncQueryHandler startQuery.

Prototype

public void startQuery(int token, Object cookie, Uri uri, String[] projection, String selection,
        String[] selectionArgs, String orderBy) 

Source Link

Document

This method begins an asynchronous query.

Usage

From source file:com.android.music.ArtistAlbumBrowserFragment.java

private Cursor getArtistCursor(AsyncQueryHandler async, String filter) {

    String[] cols = new String[] { MediaStore.Audio.Artists._ID, MediaStore.Audio.Artists.ARTIST,
            MediaStore.Audio.Artists.NUMBER_OF_ALBUMS, MediaStore.Audio.Artists.NUMBER_OF_TRACKS };

    Uri uri = MediaStore.Audio.Artists.EXTERNAL_CONTENT_URI;
    if (!TextUtils.isEmpty(filter)) {
        uri = uri.buildUpon().appendQueryParameter("filter", Uri.encode(filter)).build();
    }//from   w w w .  j  av  a  2  s .c o m

    Cursor ret = null;
    if (async != null) {
        async.startQuery(0, null, uri, cols, null, null, MediaStore.Audio.Artists.ARTIST_KEY);
    } else {
        ret = MusicUtils.query(getActivity(), uri, cols, null, null, MediaStore.Audio.Artists.ARTIST_KEY);
    }
    return ret;
}

---

From source file:com.android.music.AlbumBrowserFragment.java

private Cursor getAlbumCursor(AsyncQueryHandler async, String filter) {
    String[] cols = new String[] { MediaStore.Audio.Albums._ID, MediaStore.Audio.Albums.ARTIST,
            MediaStore.Audio.Albums.ALBUM, MediaStore.Audio.Albums.ALBUM_ART };

    Cursor ret = null;/*  w w  w. ja v  a 2  s.  c o  m*/
    if (mArtistId != null) {
        Uri uri = MediaStore.Audio.Artists.Albums.getContentUri("external", Long.valueOf(mArtistId));
        if (!TextUtils.isEmpty(filter)) {
            uri = uri.buildUpon().appendQueryParameter("filter", Uri.encode(filter)).build();
        }
        if (async != null) {
            async.startQuery(0, null, uri, cols, null, null, MediaStore.Audio.Albums.DEFAULT_SORT_ORDER);
        } else {
            ret = MusicUtils.query(getActivity(), uri, cols, null, null,
                    MediaStore.Audio.Albums.DEFAULT_SORT_ORDER);
        }
    } else {
        Uri uri = MediaStore.Audio.Albums.EXTERNAL_CONTENT_URI;
        if (!TextUtils.isEmpty(filter)) {
            uri = uri.buildUpon().appendQueryParameter("filter", Uri.encode(filter)).build();
        }
        if (async != null) {
            async.startQuery(0, null, uri, cols, null, null, MediaStore.Audio.Albums.DEFAULT_SORT_ORDER);
        } else {
            ret = MusicUtils.query(getActivity(), uri, cols, null, null,
                    MediaStore.Audio.Albums.DEFAULT_SORT_ORDER);
        }
    }
    return ret;
}

---

From source file:com.android.music.AlbumBrowserActivity.java

private Cursor getAlbumCursor(AsyncQueryHandler async, String filter) {
    String[] cols = new String[] { MediaStore.Audio.Albums._ID, MediaStore.Audio.Albums.ARTIST,
            MediaStore.Audio.Albums.ALBUM, MediaStore.Audio.Albums.ALBUM_ART };

    Cursor ret = null;//from   ww  w  . j  a  v a2  s.c o m
    if (mArtistId != null) {
        Uri uri = MediaStore.Audio.Artists.Albums.getContentUri("external", Long.valueOf(mArtistId));
        if (!TextUtils.isEmpty(filter)) {
            uri = uri.buildUpon().appendQueryParameter("filter", Uri.encode(filter)).build();
        }
        if (async != null) {
            async.startQuery(0, null, uri, cols, null, null, MediaStore.Audio.Albums.DEFAULT_SORT_ORDER);
        } else {
            ret = MusicUtils.query(this, uri, cols, null, null, MediaStore.Audio.Albums.DEFAULT_SORT_ORDER);
        }
    } else {
        Uri uri = MediaStore.Audio.Albums.EXTERNAL_CONTENT_URI;
        if (!TextUtils.isEmpty(filter)) {
            uri = uri.buildUpon().appendQueryParameter("filter", Uri.encode(filter)).build();
        }
        if (async != null) {
            async.startQuery(0, null, uri, cols, null, null, MediaStore.Audio.Albums.DEFAULT_SORT_ORDER);
        } else {
            ret = MusicUtils.query(this, uri, cols, null, null, MediaStore.Audio.Albums.DEFAULT_SORT_ORDER);
        }
    }
    return ret;
}

---

From source file:com.android.music.PlaylistBrowserFragment.java

private Cursor getPlaylistCursor(AsyncQueryHandler async, String filterstring) {

    StringBuilder where = new StringBuilder();
    where.append(MediaStore.Audio.Playlists.NAME + " != ''");

    // Add in the filtering constraints
    String[] keywords = null;//  www  . j  ava  2 s  .com
    if (filterstring != null) {
        String[] searchWords = filterstring.split(" ");
        keywords = new String[searchWords.length];
        Collator col = Collator.getInstance();
        col.setStrength(Collator.PRIMARY);
        for (int i = 0; i < searchWords.length; i++) {
            keywords[i] = '%' + searchWords[i] + '%';
        }
        for (int i = 0; i < searchWords.length; i++) {
            where.append(" AND ");
            where.append(MediaStore.Audio.Playlists.NAME + " LIKE ?");
        }
    }

    String whereclause = where.toString();

    if (async != null) {
        async.startQuery(0, null, MediaStore.Audio.Playlists.EXTERNAL_CONTENT_URI, mCols, whereclause, keywords,
                MediaStore.Audio.Playlists.NAME);
        return null;
    }
    Cursor c = null;
    c = MusicUtils.query(getActivity(), MediaStore.Audio.Playlists.EXTERNAL_CONTENT_URI, mCols, whereclause,
            keywords, MediaStore.Audio.Playlists.NAME);

    return mergedCursor(c);
}

---

From source file:de.sindzinski.lpictrainer.TestActivity.java

public void onCheckAll() {
    Integer points = 0;/* www  .  j ava2s .co m*/
    Integer maxPoints = 0;

    //Uri mDataUrl = Uri.parse(TrainerContract.AnswerEntry.CONTENT_URI + "/"
    //        + mAnswer.index);
    String[] projection = { TrainerContract.AnswerEntry._ID, TrainerContract.AnswerEntry.COLUMN_ID,
            //                AnswerEntry.COLUMN_CHECKED,
            TrainerContract.AnswerEntry.COLUMN_POINTS, };
    //String selectionClause = TrainerContract.AnswerEntry.CO + "=" + mAnswer.index;
    String selectionClause = null;
    String[] selectionArgs = null;
    String sortOrder = null;

    //        try {
    //            Cursor cursor = this.getContentResolver().query(
    //                    AnswerEntry.CONTENT_URI,
    //                    projection,
    //                    selectionClause,
    //                    selectionArgs,
    //                    sortOrder);
    //
    //            if (cursor != null) {
    //                if (cursor.moveToFirst()) {
    //                    do {
    //                        //points = points + 1;
    //                        int rowPoints = Integer.parseInt(cursor.getString(cursor.getColumnIndexOrThrow(TrainerContract.QuestionEntry.COLUMN_POINTS)));
    //                        if (rowPoints > 0 ) {
    //                            points = points + 1;
    //                                    }
    //
    //                    } while (cursor.moveToNext());
    //                }
    //                // always close the cursor
    //                cursor.close();
    //            }
    //        } catch (SQLiteException e) {
    //            Logger.e(TAG, "Error reading database: " + e);
    //        }
    //        maxPoints = to - from;
    //        Toast.makeText(this,
    //                "You reached " + points.toString() + " out of " + maxPoints.toString(), Toast.LENGTH_LONG).show();

    int token = 2;
    AsyncQueryHandler handler = new AsyncQueryHandler(this.getContentResolver()) {
        @Override
        protected void onQueryComplete(int token, Object cookie, Cursor cursor) {
            super.onQueryComplete(token, cookie, cursor);
            if (cursor != null) {
                Integer points = 0;
                Integer maxPoints = 0;
                if (cursor.moveToFirst()) {
                    do {
                        if (Integer.parseInt(cursor.getString(cursor
                                .getColumnIndexOrThrow(TrainerContract.QuestionEntry.COLUMN_POINTS))) > 0) {
                            points = points + 1;
                        }
                        //points = points + cursor.getColumnIndexOrThrow(TrainerContract.QuestionEntry.COLUMN_POINTS);
                    } while (cursor.moveToNext());
                }
                // always close the cursor
                cursor.close();
                maxPoints = to - from;
                Toast.makeText(de.sindzinski.lpictrainer.TestActivity.this,
                        "You reached " + points.toString() + " out of " + maxPoints.toString(),
                        Toast.LENGTH_LONG).show();
            }
        }
    };

    handler.startQuery(token, null, TrainerContract.AnswerEntry.CONTENT_URI, projection, selectionClause,
            selectionArgs, sortOrder);
}

---

• «
• 1
• 2
• »