When I install my app from an APK file on Android on a real phone I get a white screen after my initial login screen. If I use the same phone in usb debugging mode the the app runs as normal.
Before folk start asking why am I installing APK files my app is for use by a university in China where android stores are many . I plan to provide students with the APK file.
Has anyone any thoughts as to why the apk install would behave differently than usb debugging?