本文介绍了设置CALayer渐变背景的处理方法,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
我正在尝试为我创建的CALayer添加渐变。我可以使用以下命令设置CALayer的背景颜色:
I am trying to add a gradient to a CALayer I have created. I can set the background colour of the CALayer with the following:
self.colorLayer = [CALayer layer];
[self.colorLayer setBackgroundColor:color.CGColor];
[self.colorView setWantsLayer:YES];
[self.colorView setLayer:self.colorLayer];
我环顾四周并没有成功(令人惊讶的是,我认为这会被回答很多次)。
I've looked around with no success (surprisingly I thought this would have been answered many times).
我使用了以下渐变色:
NSGradient *gradient =
[[NSGradient alloc] initWithStartingColor:[NSColor orangeColor]
endingColor:[NSColor lightGrayColor]];
但是无法将其添加到我的CALayer中或添加角度。
But can't add it to my CALayer or add an angle.
推荐答案
CAGradientLayer *gradient = [CAGradientLayer layer];
gradient.colors = [NSArray arrayWithObjects:(id)[[NSColor whiteColor] CGColor], (id)[[NSColor greenColor] CGColor], nil];
gradient.frame = self.colorView.bounds;
[self.colorView setLayer:gradient];
[self.colorView setWantsLayer:YES];
这篇关于设置CALayer渐变背景的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!