Android8.0[Only fullscreen opaque activities can request orientation]問題解決

https://stackoverflow.com/questions/48072438/java-lang-illegalstateexception-only-fullscreen-opaque-activities-can-request-o

https://zhuanlan.zhihu.com/p/32190223

刪除android:screenOrientation="portrait"和setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);