Is there any difference between Activityname.this() & this?

Question

Is there any difference between Activityname.this() & this in Android?

I am trying to open an activity from same activity with button i

Answer 1

no MyActivity.this is the same thing as just using this when you are in the activity itself and not something like a runnable where this would refer to the runnable and not the context

you should always use this or getActivity() if in a fragment and never use getApplicationContext()

check here for why you shouldn't use getApplicationContext()

getApplication() vs. getApplicationContext()