截屏的方法

首先加入头文件#import <QuartzCore/QuartzCore.h>，并载入QuartzCore.framework库。

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UIGraphicsBeginImageContext(self.view.bounds.size);[self.view.layer renderInContext:UIGraphicsGetCurrentContext()]; UIImage *image= UIGraphicsGetImageFromCurrentImageContext();UIGraphicsEndImageContext();UIImageWriteToSavedPhotosAlbum(image, nil, nil, nil);

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