java.lang.IllegalStateException: Only fullscreen opaque activities can request orientation

Question

I am facing the problem while retrieving the contacts from the contact book in Android 8.0 Oreo java.lang.IllegalStateException: Only fullscreen opaque activities can reques

Answer 1

Just Set Orientation of activity in Manifiest.xml

android:screenOrientation="unspecified"

OR for restricted to Portrait Orientation

You can also use in Activity, In onCreate method call before super.onCreate(...) e.g.

@Override
    protected void onCreate(Bundle savedInstanceState) {
        setOrientation(this);
        super.onCreate(savedInstanceState);
        setContentView(R.layout.your_xml_layout);
        //...
        //...
}

// Method 
public static void setOrientation(Activity context) {
   if (android.os.Build.VERSION.SDK_INT == Build.VERSION_CODES.O)
        context.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED);
      else
        context.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
}