FileNotFoundException: open failed: EACCES (Permission denied)

Question

In emulator (i use genymotion) it works fine, but when I run it on a real device (my phone is ASUS ZenFone Laser 5.0) throws a filenotfoundexception

java.io.

Answer 1

I suspect WRITE_EXTERNAL_STORAGE overrides the READ_EXTERNAL_STORAGE read permission. If you look into the documentation you'll see that the former also permits reading from storage.

Try and remove the android:maxSdkVersion attribute and see if that works. I suspect that your device runs an SDK version > 18.

Check out this answer for more info: https://stackoverflow.com/a/15270626/425238

Answer 2

you have to request permission before you start your instructions because this permission is considered dangerous in Marshmallow:

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M && 
checkSelfPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) 
     {
      requestPermissions(new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, RESULT);
     } 
    else
     {
    //your code
     }