Hide TitleBar or Enable Full Screen - varshaAv/Android-Tutorials GitHub Wiki

In this tutorial, we are going to see how to hide title bar and how to display content in full screen mode.

The requestWindowFeature(Window.FEATURE_NO_TITLE); method of activity should be called to hide a title. but it must be placed before the setContentView method.

@Override  
protected void onCreate(Bundle savedInstanceState) {  
    super.onCreate(savedInstanceState);  
      
    requestWindowFeature(Window.FEATURE_NO_TITLE);//will hide the title not the title bar  
      
    setContentView(R.layout.activity_main);  
    
} 
}    

The setFlags() method of Window class is used to display content in full screen mode. You need to pass the WindowManager.LayoutParams.FLAG_FULLSCREEN constant in the setFlags method.

@Override  
protected void onCreate(Bundle savedInstanceState) {  
super.onCreate(savedInstanceState);  
  
requestWindowFeature(Window.FEATURE_NO_TITLE);  
//code that displays the content in full screen mode  
this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,  
            WindowManager.LayoutParams.FLAG_FULLSCREEN);//int flag, int mask  
  
setContentView(R.layout.activity_main);     
}    

Full Activity class

import android.os.Bundle;  
import android.app.Activity;  
import android.view.Menu;  
import android.view.Window;  
import android.view.WindowManager;  

public class MainActivity extends Activity {  

@Override  
protected void onCreate(Bundle savedInstanceState) {  
    super.onCreate(savedInstanceState);  
      
    requestWindowFeature(Window.FEATURE_NO_TITLE);  
   
  /*this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, 
              WindowManager.LayoutParams.FLAG_FULLSCREEN);//int flag, int mask 
  */  
    setContentView(R.layout.activity_main);  
      
}   
}