小编mko*_*kar的帖子

我怎么能得到像光标一样的多个相同返回类型的实例

例如 :-

Module
@CursorScope
public class CursorModule {


    @Provides
    Cursor provideSongCursor(
            @Named("Song") Musician musician) {
        return musician.getApplicationContext().getContentResolver().query(MediaStore.Audio.Media.EXTERNAL_CONTENT_URI,
                new String[]{
                        BaseColumns._ID,
                        MediaStore.Audio.AudioColumns.TITLE,
                        MediaStore.Audio.AudioColumns.ARTIST,
                        MediaStore.Audio.AudioColumns.ALBUM,
                        MediaStore.Audio.AudioColumns.DURATION
                }, MediaStore.Audio.AudioColumns.IS_MUSIC + "=1", null, null);
    }

    @Provides
    Cursor provideAlbumCursor(
            @Named("Album") Musician musician) {
        return musician.getApplicationContext().getContentResolver().query(MediaStore.Audio.Albums.EXTERNAL_CONTENT_URI,
                new String[]{
                        BaseColumns._ID,
                        MediaStore.Audio.AlbumColumns.ALBUM,
                        MediaStore.Audio.AlbumColumns.ARTIST,
                        MediaStore.Audio.AlbumColumns.NUMBER_OF_SONGS,
                        MediaStore.Audio.AlbumColumns.FIRST_YEAR
                }, null, null, null);
    }

    @Provides
    Cursor provideArtistCursor(@Named("Artist") Musician musician) {
        return musician.getApplicationContext().getContentResolver().query(MediaStore.Audio.Artists.EXTERNAL_CONTENT_URI,
                new String[] {
                        BaseColumns._ID,
                        MediaStore.Audio.ArtistColumns.ARTIST,
                        MediaStore.Audio.ArtistColumns.NUMBER_OF_ALBUMS,
                        MediaStore.Audio.ArtistColumns.NUMBER_OF_TRACKS
                }, null, null,null);
    }

    @Provides
    Cursor provideGenreCursor(
            @Named("Genres") Musician musician) {
        return …