ios 在 Swift 中使用渲染模式创建 UIImage
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Creating UIImage with renderingMode in Swift
提问by DuckDucking
In objectiveC I would do this
在objectiveC我会这样做
UIImage *image = [[UIImage imageNamed:@"myImage.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
but in Swift I have tried all alternatives like this, without success
但在 Swift 中，我尝试了所有这样的替代方案，但都没有成功
var image : UIImage = UIImage(named:"myImage.png").imageWithRenderingMode(renderingMode: AlwaysOriginal)
It shows an error: use of unresolved identifier 'AlwaysOriginal'
它显示一个错误：使用未解析的标识符“AlwaysOriginal”
How do I do that?
我怎么做？
回答by holex
that would be the proper syntax:
那将是正确的语法：
(for Swift 3.xor Swift 4)
（适用于Swift 3.x或Swift 4）
var image: UIImage? = UIImage(named:"myImage")?.withRenderingMode(.alwaysOriginal)
(for Swift 2.x)
（对于Swift 2.x）
var image: UIImage? = UIImage(named:"myImage.png").imageWithRenderingMode(UIImageRenderingMode.AlwaysOriginal)
but you can use this 'shortcut' as well:
但您也可以使用此“快捷方式”：
var image: UIImage? = UIImage(named:"myImage.png").imageWithRenderingMode(.AlwaysOriginal)
