Remove the white screen a Slide window transition creates when it starts

Question

I am using an activity with a black background. That same activity has a toolbar and a DrawerLayout as well. This white screen makes the look inconsistent.

It can be

Answer 1

Seems like the old activity will not "stay" in view when you have a custom transition. I don't know when that started, but you definitely didn't need a stay animation in some previous API levels. The old 2.0 era overridePendingTransition still works fine:

anim/slide_in.xml

anim/slide_out.xml

anim/stay.xml

Main activity's startActivity:

startActivity(intent);
overridePendingTransition(
        R.anim.slide_in,
        R.anim.stay
);

Second activity's return:

@Override
public void onBackPressed() {
    super.onBackPressed();

    overridePendingTransition(
            0,
            R.anim.slide_out
    );
}