ViewFlipper

ViewFlipper flips the view with the values given to its adapter. The flipping rate can be modified to make it flip faster or slower

Layout file for the activity

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    >
    <ViewFlipper android:id="@+id/flippy"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        >
    </ViewFlipper>
</LinearLayout>

Activity class for the ViewFlipper

public class MainActivity extends AppCompatActivity {

    static String[] items={"answer1", "answer2", "answer3"};
    ViewFlipper flipper;

    @Override
    public void onCreate(Bundle state) {
        super.onCreate(state);
        setContentView(R.layout.activity_main);

        flipper=(ViewFlipper)findViewById(R.id.flippy);

        for (String item : items) {
            Button btn=new Button(this);

            btn.setText(item);

            flipper.addView(btn,
                    new ViewGroup.LayoutParams(
                            ViewGroup.LayoutParams.FILL_PARENT,
                            ViewGroup.LayoutParams.FILL_PARENT));
        }

        flipper.setFlipInterval(2000);
        flipper.startFlipping();
    }
}