我想在UIimage中添加模糊效果,而不是UIImage View。 我可以在uiimage视图中添加模糊效果 就像这样:
let blurEffect = UIBlurEffect(style: UIBlurEffectStyle.light)
let blurEffectView = UIVisualEffectView(effect: blurEffect)
blurEffectView.frame = img.bounds
blurEffectView.autoresizingMask = [.flexibleWidth, .flexibleHeight]
img.addSubview(blurEffectView)
但是,我真的想加入uiimage。因为我必须用文字画图像。所以这是我的功能:
func textToImageWithPhoto(drawText text: NSString, inImage image: UIImage, atPoint point: CGPoint) -> UIImage {
let scale = UIScreen.main.scale
UIGraphicsBeginImageContextWithOptions(CGSize.init(width: 375, height: 375), false, scale)
image.draw(in: CGRect(origin: CGPoint.init(x: 0, y: -100), size: CGSize(width: 375, height: 375*1.5)))
let rect = CGRect(origin: CGPoint.init(x: 0, y: 187.5 - 150/2 ), size: CGSize.init(width: 375, height: 375))
text.draw(in: rect, withAttributes: textFontAttributes)
let newImage = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
self.saveData(img: newImage!, text: self.quotesTxt.text!) //SAVE CORE DATA
return newImage!
}
有没有办法在绘制函数中添加模糊效果?
答案 0 :(得分:1)
extension UIIMageView {
func addBlurEffect(){
//if !UIAccessibilityIsReduceTransparencyEnabled() {
GlobalData.effectView.frame = self.bounds
GlobalData.effectView.autoresizingMask = [.flexibleWidth , .flexibleHeight]
self.addSubview(GlobalData.effectView)
UIView.animate(withDuration: 0.3, animations: {
GlobalData.effectView.effect = UIBlurEffect(style: .light)
})
//}
}
func removeBlurEffect(){
for subView in self.subviews{
if subView is UIVisualEffectView{
UIView.animate(withDuration: 0.3, animations: {
GlobalData.effectView.effect = nil
}, completion: { (success:Bool) in
subView.removeFromSuperview()
})
}
}
}
使用此扩展程序。这对我有用。我不尝试,但你可以改变扩展类型为UIImage。