例如,如果有两个目录 / SD卡/音乐/音乐-1
和 / SD卡/音乐/音乐-2
如何构建一个URI来得到音乐-1 DIR为例。我可以使用 MediaStore.Audio.Media.EXTERNAL_CONTENT_URI
来获取所有外部存储设备,但是怎么做的伎俩只对特定目录的内容。
For example if a have two directories /sdcard/Music/Music-1
and /sdcard/Music/Music-2
how can I construct a URI to get the files in Music-1
dir for example. I can use MediaStore.Audio.Media.EXTERNAL_CONTENT_URI
to get the content of all external storage but how to do the trick only for specific dir.
在 DATA
字段筛选的路径,构建波普尔 SELECT WHERE
语句相匹配的文件夹名称,您可以使用 SUBSTR
查询; - )
Filter the path from the DATA
field and construct a poper SELECT WHERE
statement to match the folder names, you can use SUBSTR
in the query ;-)