package durianhln.polymorph;

import android.os.Bundle;

import com.badlogic.gdx.backends.android.AndroidApplication;
import com.badlogic.gdx.backends.android.AndroidApplicationConfiguration;
import durianhln.polymorph.Polymorph;

public class AndroidLauncher extends AndroidApplication {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        AndroidApplicationConfiguration config = new AndroidApplicationConfiguration();
        initialize(new Polymorph(), config);
    }
}

package durianhln.polymorph;

import android.os.Bundle;

import com.badlogic.gdx.backends.android.AndroidApplication;
import com.badlogic.gdx.backends.android.AndroidApplicationConfiguration;
import durianhln.polymorph.Polymorph;

public class AndroidLauncher extends AndroidApplication {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        AndroidApplicationConfiguration config = new AndroidApplicationConfiguration();
        config.useImmersiveMode = true;
        initialize(new Polymorph(), config);
    }
}

Change Android to immersive mode