Android无法访问外部存储

Question

I have this code:

File rootsd = Environment.getExternalStorageDirectory();
File[] imagelist = rootsd.listFiles(new FilenameFilter(){
public boolean accept(File dir, String name)
{
 return ((name.endsWith(".jpg"))||(name.endsWith(".png")));
}
});

And my permission:

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>

Somehow the imagelist is null instead of empty. Can anyone help me. Thanks a lot.

Answer 1

move rootsd file upto the directory where images are present. you are just considering /mnt/sdcard path. point to the directory where images are in, like

File rootsd = new File(Environment.getExternalStorageDirectory().getPath()
            + File.separator + "imagesdirectory");