java.io.IOException: setDataSource failed

Question

I'm trying to play a video using FullscreenVideoView but i keep getting this error everytime that i try to play a stored video

Java.io.IOException: setDataSource failed.

 File n  = new File(getApplicationContext().getFilesDir()+"/Downloads/video9.mp4");
        Log.e(TAG, "URL:" + n); 

        fullscreenVideoView.videoFile(n).enableAutoStart().fastForwardSeconds(5)
                .rewindSeconds(5)
                .addSeekBackwardButton()
                .addSeekForwardButton();

Answer 1

There are bunch of reasons, why your dataSource doesn't work. Try to add logging:

 File n  = new File(getApplicationContext().getFilesDir()+"/Downloads/video9.mp4");
        Log.e(TAG, "URL:" + n); 
        Log.e(TAG, "exists: " + n.exists());

        fullscreenVideoView.videoFile(n).enableAutoStart().fastForwardSeconds(5)
                .rewindSeconds(5)
                .addSeekBackwardButton()
                .addSeekForwardButton();

Probably file doesn't exist. It may be because of not granted permissions or the wrong way of file.

At first I would advise you ti check permissions. If you running your code on app on 6+ android, you must request permissions in runtime. In your case they would be: READ_EXTERNAL_STORAGE, WRITE_EXTERNAL_STORAGE.