Android Screen Switch

Lock the horizontal or vertical screen.
When the screen orientation is not specified, the next change is based on the orientation of the screen, that is: android:screenorientation= "unspecified"
You can configure the screen to make changes in the Androidmanifest.xml file, or you can configure it in Java code

Configure in Androidmanifest.xml:
If you make an activity do a change in the screen, add the following configuration to the activity's label.

<!---<activity             android:label= "@string/app _name "             android:name=". Lockthescreenactivity "             android:screenorientation=" Portrait "   > </activity>

The code is implemented as follows:

@Override public     void onCreate (Bundle savedinstancestate) {         Super. OnCreate ( Savedinstancestate);         Setrequestedorientation (Activityinfo.screen_orientation_landscape); //  //setrequestedorientation (activityinfo.screen_orientation_portrait) Vertical screen         Setcontentview (R.layout.activity_main);     }

Android Screen Switch