1. Fixed applying permission problem on Android 6.0 and above version.
2. Fixed no alarm notification icon problem on Android 8.0 and above version.
3. Fixed no thumbnail picture when the camera is online by adding camera via wired method.
4. Optimized the app always shows “connecting” when the app was closed from phone background a while and re-open it.
5. Fixed the app crashing problem when user changes username and password under User Management page.