本文整理汇总了Java中android.content.ContentQueryMap类的典型用法代码示例。如果您正苦于以下问题：Java ContentQueryMap类的具体用法？Java ContentQueryMap怎么用？Java ContentQueryMap使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
ContentQueryMap类属于android.content包，在下文中一共展示了ContentQueryMap类的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: loadInBackground
import android.content.ContentQueryMap; //导入依赖的package包/类
@Override
public Cursor loadInBackground() {
Cursor mediaCursor = getContext().getContentResolver().query(mUri, mProjection, mSelection,
mSelectionArgs, mSortOrder);
//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;
}
示例2: loadInBackground
import android.content.ContentQueryMap; //导入依赖的package包/类
@Override
public Cursor loadInBackground() {
Cursor mediaCursor = getContext().getContentResolver().query(mUri, mProjection, mSelection,
mSelectionArgs, mSortOrder);
//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;
}