How to initialize Android program to be portrait or landscape

If you want to disable orientation changes of the phone then you may use this code in the manifest

<activity android:name=".class_name"

//if you want your screen in portrait

android:screenOrientation="portrait" >

//if you want you screen in landscape mode

android:screenOrientation="landscape" >

and if you want your phone to change orientation but prevent the process from restarting then you can use the onConfigurationChanged method in your class:

@Override
public void onConfigurationChanged(Configuration newConfig) {
   // ignore orientation change
   if (newConfig.orientation != Configuration.ORIENTATION_LANDSCAPE) {
       super.onConfigurationChanged(newConfig);
   }
}