Second Snippet for hiding status bar and nav bar

Hiding status and nav bar with java.txt

package com.example.android.myapplication;

import android.graphics.Color;
import android.os.Build;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.view.WindowManager;
import android.widget.TextView;


public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        // If the Android version is lower than Jellybean, use this call to hide
        // the status bar.
        if (Build.VERSION.SDK_INT < 16) {
            getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
            WindowManager.LayoutParams.FLAG_FULLSCREEN);
         // You can hide the navigation bar using the SYSTEM_UI_FLAG_HIDE_NAVIGATION flag. This snippet hides both the navigation bar and the status bar
         // snipet source code: https://developer.android.com/training/system-ui/navigation.html#40
        }else {
            View decorView = getWindow().getDecorView();
            // Hide both the navigation bar and the status bar.
            // SYSTEM_UI_FLAG_FULLSCREEN is only available on Android 4.1 and higher, but as
            // a general rule, you should design your app to hide the status bar whenever you
            // hide the navigation bar.
            int uiOptions = View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
                    | View.SYSTEM_UI_FLAG_FULLSCREEN;
            decorView.setSystemUiVisibility(uiOptions);
	
        }
	setContentView(R.layout.activity_main);
...
...

}