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

It is a conflict (bug) between Themes inside style.xml file in android versions 7 (Api levels 24,25) & 8 (api levels 26,27), when you have

android:screenOrientation="portrait" :inside specific activity (that crashes) in AndroidManifest.xml

&

true 

in the theme that applied to that activity inside style.xml

It can be solve by these ways according to your need :

1- Remove on of the above mentioned properties that make conflict

2- Change Activity orientation to one of these values as you need : unspecified or behind and so on that can be found here : Google reference for android:screenOrientation `

3- Set the orientation programmatically in run time