Self-destructing message android app > Sending a Message > App Crash when using Take Picture

Disclaimer: I'm no expert by any means. I merely want to share what I feel might help others with a similar issue.

A lot of you may have run into NullPointerExceptions at line 27 of the FileHelper class or simply found your app crashing when trying to Take Picture and found it weird that Choose Picture and Video worked fine.

From my digging around and debugging, I've found that when the camera is called in some cases the Ribbit activity gets destroyed, so when it returns mMediaUri is null.

The work around that I have used is to save the value using onSavedInstanceState in MainActivity.java

protected void onSaveInstanceState(Bundle outState){
    super.onSaveInstanceState(outState);
    if(mMediaUri != null){
        outState.putString("mediaUri", mMediaUri.toString());
    }
}

protected void onRestoreInstanceState(Bundle savedInstanceState){
    super.onRestoreInstanceState(savedInstanceState);
    if(savedInstanceState.containsKey("mediaUri")){
        mMediaUri=Uri.parse(savedInstanceState.getString("mediaUri"));
    }
}

I do not know if this was intentionally left out for learning purposes, but it seems to get pretty misleading at times.

I hope Ben Jakuben could either enlighten us with the right woraround or atleast include it in the videos so that the future students don't end up at a stand still.

Thanks in Avance