Compatibility IOS 7.1
Compatibility IOS 7.1

if Device not IOS8, put white color instead of clear color

AlvaroFranco/AFDropdownNotification,mgrebenets/AFDropdownNotification,howeguo/AFDropdownNotification,mohsinalimat/AFDropdownNotification,lijie121210/AFDropdownNotification,carayolthomas/AFDropdownNotification