ios 以编程方式向 UIButton 标签添加阴影
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Programmatically adding a shadow to a UIButton label
提问by edhog
I'm trying to add a 1px black drop shadow to a button label with no luck. I've tried this:self.setTitleShadowOffset = CGSizeMake(0, -1);but I get:
我试图在没有运气的情况下向按钮标签添加 1px 黑色阴影。我试过这个：self.setTitleShadowOffset = CGSizeMake(0, -1);但我得到：
Request for member 'setTitleShadowOffset' in something not a structure or union
在不是结构或联合的东西中请求成员“setTitleShadowOffset”
Any suggestions would be fantastic thanks!
任何建议都会很棒谢谢！
回答by fsaint
The right property is self.titleLabel.shadowOffset:
正确的属性是 self.titleLabel.shadowOffset：
UIButton *b = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[b setTitleShadowColor:[UIColor purpleColor] forState:UIControlStateNormal];
b.titleLabel.shadowOffset = CGSizeMake(1.0, 1.0);
[b setTitle:@"Hello, I'm a Button" forState:UIControlStateNormal];
b.frame = CGRectMake(10.0, 10.0,300.0, 40.0);
回答by ArtOfWarfare
The other answers do not properly set the shadow color (I suspect they didn't notice because they were trying to set the shadow color to what it is by default, black.)
其他答案没有正确设置阴影颜色（我怀疑他们没有注意到，因为他们试图将阴影颜色设置为默认情况下的黑色。）
This code worked for me to add a white shadow to the text of my button:
这段代码对我有用，可以为我的按钮文本添加一个白色阴影：
myButton.titleLabel.shadowOffset = CGSizeMake(0, 1);
[myButton setTitleShadowColor:[UIColor whiteColor] forState:UIControlStateNormal];
回答by visakh7
The setTitleShadowOffsetfor UIButtonis deprecated. Use the shadowOffsetof titleLabel property of UIButton
在setTitleShadowOffset对UIButton已被弃用。使用的shadowOffsettitleLabel 属性UIButton
buttonName.titleLabel.shadowOffset = CGSizeMake(0, -1);
buttonName.titleLabel.shadowOffset = CGSizeMake(0, -1);
回答by Raphael Souza
In Swift 3.0
在 Swift 3.0 中
myButton.titleLabel?.layer.shadowRadius = 3
myButton.titleLabel?.layer.shadowColor = UIColor.black.cgColor
myButton.titleLabel?.layer.shadowOffset = CGSize(width: 0, height: 1)
myButton.titleLabel?.layer.shadowOpacity = 0.5
myButton.titleLabel?.layer.masksToBounds = false
回答by Wilson
for Swift 3:
对于 Swift 3：
button.setTitleShadowColor(UIColor.red, for: .normal)
button.titleLabel?.shadowOffset = CGSize(width: 2, height: 2)
回答by Userich
Here is how to add shadow to the button title in Objective-C with radius property:
以下是如何使用半径属性为 Objective-C 中的按钮标题添加阴影：
#import <QuartzCore/QuartzCore.h>
button.titleLabel.layer.shadowOffset = CGSizeMake(2.0, 2.0);
button.titleLabel.layer.shadowColor = [UIColor colorWithWhite:0.1 alpha:0.7].CGColor;
button.titleLabel.layer.shadowRadius = 2.0;
button.titleLabel.layer.shadowOpacity = 1.0;
button.titleLabel.layer.masksToBounds = NO;
