Example usage for android.content ContentQueryMap getRows

Introduction

In this page you can find the example usage for android.content ContentQueryMap getRows.

Prototype

public synchronized Map<String, ContentValues> getRows() 

Source Link

Usage

From source file:com.andrew.apolloMod.helpers.AddIdCursorLoader.java

@Override
public Cursor loadInBackground() {

    Cursor mediaCursor = getContext().getContentResolver().query(mUri, mProjection, mSelection, mSelectionArgs,
            mSortOrder);//from   w  w  w .  j  a  v  a2  s  . c  o m
    //Get cursor filled with Audio Id's
    String[] projection = new String[] { BaseColumns._ID, AlbumColumns.ALBUM };
    Uri uri = Audio.Albums.EXTERNAL_CONTENT_URI;
    String sortOrder = Audio.Albums.DEFAULT_SORT_ORDER;
    Cursor albumCursor = getContext().getContentResolver().query(uri, projection, null, null, sortOrder);

    //Matrix cursor to hold final data to be returned to calling context
    MatrixCursor cursor = new MatrixCursor(new String[] { BaseColumns._ID, MediaColumns.TITLE,
            AudioColumns.ARTIST, AudioColumns.ALBUM, AudioColumns.ALBUM_ID });
    //Map data from Audio Id cursor to the ALbumName Colum
    ContentQueryMap mQueryMap = new ContentQueryMap(albumCursor, AlbumColumns.ALBUM, false, null);

    Map<String, ContentValues> data = mQueryMap.getRows();
    if (mediaCursor != null) {
        while (mediaCursor.moveToNext()) {
            String id = mediaCursor.getString(mediaCursor.getColumnIndexOrThrow(BaseColumns._ID));
            String title = mediaCursor.getString(mediaCursor.getColumnIndexOrThrow(MediaColumns.TITLE));
            String artist = mediaCursor.getString(mediaCursor.getColumnIndexOrThrow(AudioColumns.ARTIST));
            String album = mediaCursor.getString(mediaCursor.getColumnIndexOrThrow(AudioColumns.ALBUM));

            ContentValues tData = data.get(album);
            String albumid = (String) tData.get(BaseColumns._ID);
            cursor.addRow(new String[] { id, title, artist, album, albumid });
        }
        mediaCursor.close();
    }

    if (cursor != null) {
        // Ensure the cursor window is filled
        registerContentObserver(cursor, mObserver);
    }
    return cursor;
}

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