sharedApplication is unavailable on iOS Extension

[jeonghanjoo]

Semantic issue
./Pods/BAPeekPop/BAPeekPop/Classes/BAPeekPop.m:190:54: 'sharedApplication' is unavailable: not available on iOS (App Extension) - Use view controller based solutions where appropriate instead.

Using [UIApplication sharedApplication] is unavailable when making iOS App extension.
The followings are the lines using it.

• BAPeekPop.m:190
• BAPreviewingViewController:393

Please see similar issue on NVActivityIndicatorView

[BramYeh]

Thanks, I will fix this on the weekend.