Check if extras are set or not

Question

Is there any way to check if an extra has been passed when starting an Activity?

I would like to do something like (on the onCreate() in the Activity):<

Answer 1

I think you need to check when extras != null

Bundle extras = getIntent().getExtras();
   if (extras != null) {
        String extraStr = extras.getString("extra");
    }else {
        extraStr = "extra not set";
    }