ExampleActivity.java

package com.example.activity;

import android.os.Build;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;

import com.example.R;


public class ExampleActivity extends AppCompatActivity
{
	@Override
	public void onCreate(Bundle savedInstanceState)
	{
		supportRequestWindowFeature(Window.FEATURE_NO_TITLE);
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_example);
		setupFullscreen();
	}


	private void setupFullscreen()
	{
		getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);

		if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT)
		{
			getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE |
					View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION |
					View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN |
					View.SYSTEM_UI_FLAG_HIDE_NAVIGATION |
					View.SYSTEM_UI_FLAG_FULLSCREEN |
					View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);
		}
	}
}