曾經練習過用
Uri deviceMusic = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
String selection = MediaStore.Audio.Media.IS_MUSIC + " != 0";
String sortOrder = MediaStore.Audio.Media.DISPLAY_NAME;
Cursor cursor = this.getContentResolver().query(deviceMusic, null,
selection, null, sortOrder);
拿過 SDCard 中所有音樂的資訊
有沒有類似的方法可以拿取 SDCard 中所有照片呢?