iOS 區域截屏及scrollView截屏

截取view,返回圖片 + (UIImage *)captureScreenView:(UIView *)view { UIGraphicsBeginImageContextWithOptions(view.size, YES, 0.0); //currentView 當前的view 建立一個基於位圖的圖形上下文並指定大小爲 [view.layer renderInContext:

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