摘要： 检测设备的摄像头是否可用：- (BOOL) isCameraAvailable{ return [UIImagePickerController isSourceTypeAvailable: UIImagePickerControllerSourceTypeCamera];}UIImagePickerControllerSourceTypeCamera 检测摄像头功能；UIImagePickerControllerSourceTypePhotoLibrary 检测图片库；UIImagePickerControllerSourceTypeSavedPhotosAlbum 检测相册功能... 阅读全文