Why is the list of files empty if reading the content from getExternalStorageDirectory?

Asked Jan 12 '17 at 20:54

Active Jan 12 '17 at 20:54

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Following an answer from this post I have run the following code:

String path = Environment.getExternalStorageDirectory().toString();
Log.d("Files", "Path: " + path);
File f = new File(path);
File file[] = f.listFiles();
Log.d("Files", "Size: " + file.length);

which results in an NullPointerException, as the array file seems to be empty. However, the location /storage/emulated/0 to which the variable path refers to, is NOT empty.

What is going on? Why is the list of files empty, althugh there are files in that directory?

edited May 23 '17 at 12:33

Community

asked Jan 12 '17 at 20:54

Alex

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https://stackoverflow.com/questions/32635704/android-permission-doesnt-work-even-if-i-have-declared-it – CommonsWare Jan 12 '17 at 20:55
Yes, thats it! And I have this problem EACH time when creating an android app. – Alex Jan 12 '17 at 20:58

Why is the list of files empty if reading the content from getExternalStorageDirectory?

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