ios - 如何在 xcode 7、iOS swift 2 中截取 View 的部分屏幕截图？

Question

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Answer 1

您可以使用以下代码截取全屏:

func captureView(view: UIView) -> UIImage {
    var screenRect: CGRect = UIScreen.mainScreen().bounds
    UIGraphicsBeginImageContext(screenRect.size)
    var ctx: CGContextRef = UIGraphicsGetCurrentContext()
    UIColor.blackColor().set()
    CGContextFillRect(ctx, screenRect)
    view.layer.renderInContext(ctx)
    var newImage: UIImage = UIGraphicsGetImageFromCurrentImageContext()
    UIGraphicsEndImageContext()
    return newImage
}