初始化GMSMarkers的函数:funcmakeMarkers(progressHandler:((String)->Void)?=nil){progressHandler?("Инициализируеммаркеры...")fordeviceinself.devices{progressHandler?("Инициализируеммаркеры:дляустройства\(device.name!)...")ifletposition=self.positions.findById(device.positionId){ifletmarker=DeviceMarker(d

我正在尝试检索/下载LivePhoto的视频/帧。至于API文档，有一种可能的情况是LivePhotos将存储在iCloud中。为了也检索它们，您需要声明letoptions=PHAssetResourceRequestOptions()options.networkAccessAllowed=true我正在尝试在下载LivePhoto时创建进度条。根据API，您需要声明此属性:publicvarprogressHandler:PHAssetResourceProgressHandler?progressAfloating-pointvalueindicatingtheprogress