Amending the code to use the full screen and the best Android class

As we did for the Sub Hunter project, find the following line of code near the top of the PongActivity.java file:

import androidx.appcompat.app.AppCompatActivity;

Change the preceding line of code to the same as this next line of code:

import android.app.Activity;

Immediately after the preceding line of code, add this new line of code:

import android.view.Window;

The line of code we changed enables us to use a more efficient version of the Android API, Activity instead of AppCompatActivity, and the new line of code allows us to use the Window class, which we will do in this section in a moment.

At this point, there are errors in our code. This next step will remove the errors. Find the following line of code in the PongActivity.java file:

public class PongActivity extends AppCompatActivity {

Change the preceding line of code to the same as this next line of code:

public class PongActivity...