UIImage animationImages色彩? [英] UIImage animationImages tint color?
本文介绍了UIImage animationImages色彩?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
有没有办法在动画中为图像着色?
Is there a way to tint the images in an animation?
我知道我可以为这样的单个图像着色:
I know I can tint a single image like this:
var imageOne:UIImage = UIImage(named: "pullto_1.png")!;
imageOne = imageOne.imageWithRenderingMode(UIImageRenderingMode.AlwaysTemplate);
refSequence.image = imageOne;
但是当我尝试这样做时它只是不起作用:
But when I try to do it like this it just dosen't work:
var imageOne:UIImage = UIImage(named: "pullto_1.png")!;
imageOne = imageOne.imageWithRenderingMode(UIImageRenderingMode.AlwaysTemplate)
var image2:UIImage = UIImage(named: "pullto_2.png")!;
image2 = image2.imageWithRenderingMode(UIImageRenderingMode.AlwaysTemplate)
var image3:UIImage = UIImage(named: "pullto_3.png")!;
image3 = image3.imageWithRenderingMode(UIImageRenderingMode.AlwaysTemplate)
var image4:UIImage = UIImage(named: "pullto_4.png")!;
image4 = image4.imageWithRenderingMode(UIImageRenderingMode.AlwaysTemplate)
refSequence.animationImages = NSArray(objects: imageOne,
image2,
image3,
image4
);
refSequence.animationDuration = 1.4;
refSequence.animationRepeatCount = 99;
refSequence.startAnimating();
我做错了什么?有没有办法在动画中为图像着色?
Am I doing something wrong? Is there some way to tint the images in the animation?
谢谢
推荐答案
好的,我希望有一个更简单的解决方案,但这就是我最终要做的事情:
Ok, i hoped that there is a simpler solution but this is what I ended up doing:
此函数将创建一个所需颜色的新图像:
This function will create a new image with the wanted color:
func imageWithColor(img:UIImage, color:UIColor)->UIImage{
UIGraphicsBeginImageContextWithOptions(img.size, false, img.scale);
var context = UIGraphicsGetCurrentContext();
CGContextTranslateCTM(context, 0, img.size.height);
CGContextScaleCTM(context, 1.0, -1.0);
CGContextSetBlendMode(context, kCGBlendModeNormal);
var rect = CGRectMake(0, 0, img.size.width, img.size.height);
CGContextClipToMask(context, rect, img.CGImage)
color.setFill();
CGContextFillRect(context, rect);
var newImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return newImage;
}
然后你可以这样打电话:
And then you can call it like this:
var imageOne:UIImage = UIImage(named: "pullto_1.png")!;
imageOne = imageWithColor(imageOne, color: UIColor.redColor());
var image2:UIImage = UIImage(named: "pullto_2.png")!;
image2 = imageWithColor(image2, color: UIColor.redColor());
var image3:UIImage = UIImage(named: "pullto_3.png")!;
image3 = imageWithColor(image3, color: UIColor.redColor());
var image4:UIImage = UIImage(named: "pullto_4.png")!;
image4 = imageWithColor(image4, color: UIColor.redColor());
loaderS.animationImages = NSArray(objects: imageOne,
image2,
image3,
image4
);
loaderS.animationDuration = 1.4;
loaderS.animationRepeatCount = 99;
loaderS.startAnimating();
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