iOS捕捉屏幕截图

2015/11/04 40002

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+ (UIImage *) imageFromView: (UIView *) theView
{
    // Draw a view’s contents into an image context
    UIGraphicsBeginImageContext(theView.frame.size);
    CGContextRef context = UIGraphicsGetCurrentContext();
    [theView.layer renderInContext:context];
    UIImage *theImage = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
    return theImage;
}