screen rotation android source code

Hello Guys. Welcome to our new tutorial of android screen rotation using android studio. simple click button for change screen orientation.

please follow the code given below to rotate your android screen.

• First Create a new project in Android Studio
• File ⇒ New Android ⇒ Application Project
• Then Open src -> package -> MainActivity.java and then add following code :

JAVA (MainActivity.java)

import android.content.pm.ActivityInfo; 
import android.support.v7.app.AppCompatActivity; 
import android.os.Bundle; 
import android.view.View; 
import android.widget.Button; 

public class Changescreenorientation extends AppCompatActivity { 

    Button Landscape, Portrait; 
    @Override 
    protected void onCreate (Bundle savedInstanceState) { 
        super.onCreate (savedInstanceState); 
        setContentView (R.layout.activity_changescreenorientation); 

        Landscape = (Button) findViewById (R.id.button1); 
        Portrait = (Button) findViewById (R.id.button2); 

        Landscape.setOnClickListener (new View.OnClickListener () { 
            @Override
            public void onClick (View v) { 
                setRequestedOrientation (ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE); 
            } 
        }); 

        Portrait.setOnClickListener (new View.OnClickListener () { 
            @Override 
            public void onClick (View v) { 
                              setRequestedOrientation (ActivityInfo.SCREEN_ORIENTATION_PORTRAIT); 
            } 
        }); 

    } 
}

 

XML (activity_main.xml)

<RelativeLayout xmlns: android = "http://schemas.android.com/apk/res/android" 
    xmlns: tools = "http://schemas.android.com/tools" 
    android: layout_width = "match_parent" 
    android: layout_height = "match_parent" 
    > 

    <Button 
        android: id = "@ + id / button2" 
        android: layout_width = "wrap_content" 
        android: layout_height = "wrap_content" 
        android: layout_below = "@ + id / button1" 
        android: layout_centerHorizontal = "true" 
        android: layout_marginTop = "14dp" 
        android: text = "Portrait Mode" /> 

    <Button 
        android: id = "@ + id / button1"
        android: layout_width = "wrap_content" 
        android: layout_height = "wrap_content"
        android: layout_alignParentTop = "true" 
        android: layout_centerHorizontal = "true" 
        android: layout_marginTop = "156dp" 
        android: text = "Landscape Mode" /> 

</ RelativeLayout>