在iPhone屏幕上像Pandora app一樣在鎖屏中控制音樂播放器 [英]getting music player control in lock screen like Pandora app in iphone
當應用程序在后台運行時,在iOS應用程序的鎖定屏幕上添加圖像 [英]Add image on lock screen in iOS app, when app is running in background