睡前聊一会儿，梦中有世界。听众朋友们，晚上好。 这几日，广州“地铁偷拍乌龙”事件在网络上持续发酵。事件起因是一女子在地铁上见一大叔蹲着玩手机，怀疑对方偷拍自己。为自证清白，大叔同意其检查了手机相册。然而
I have a video in applications documents folder. I need it to be saved in camera roll. So, I used UISaveVideoAtPathToSavedPhotosAlbum method to save it in camera roll. It\'s working and I can see the
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