ios - 尝试以编程方式快速截取屏幕截图时，UIBlurEffect 不起作用

Question

我以编程方式模糊了我的 View ，并添加了带有屏幕截图的共享扩展，但屏幕截图并没有模糊我在图像中的 View 。所有编程都在 swift 中

模糊代码

let blurEffect = UIBlurEffect(style:.Dark)
let blurView = UIVisualEffectView(effect: blurEffect)
blurView.frame = imageView2.frame
self.view.addSubview(blurView)

截图代码

UIGraphicsBeginImageContext(view.frame.size)
view.layer.renderInContext(UIGraphicsGetCurrentContext())
let image = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()

谢谢

Answer 1

试试这样截图:

UIGraphicsBeginImageContextWithOptions(view.bounds.size, false, 0)
view.drawHierarchy(in: view.bounds, afterScreenUpdates: true)
let image = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()