用于UISegmentedControl的NSAttributed字符串

Question

我试图为我的UISegmented Control设置自定义间距。如何定义NSKernAttributeName和value属性以定义字母之间的自定义间距？

[myUIControl setTitleTextAttributes:@{ NSForegroundColorAttributeName : [UIColor whiteColor], NSFontAttributeName: [UIFont fontWithName:myFont size:13]} forState:UIControlStateSelected];

这是UIButton

的完成方式

[attributedString addAttribute:NSKernAttributeName
                         value:@(dinSpacing)
                         range:NSMakeRange(0, [myString length])];

Answer 1

你可以设置段控制的字符间距，如下所示，你正确的只是添加NSKernAttributeName作为对象和值作为你正在为按钮做的数字

[self.aSegMentCntrl setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys:@(5),NSKernAttributeName,[UIColor redColor],NSForegroundColorAttributeName,[UIFont fontWithName:@"Helvetica Neue" size:13],NSFontAttributeName ,nil] forState:UIControlStateSelected];

你的词典版本

[self.aSegMentCntrl setTitleTextAttributes:@{ NSKernAttributeName:@(5),NSForegroundColorAttributeName: [UIColor whiteColor], NSFontAttributeName: [UIFont fontWithName:@"Helvetica Neue" size:13]} forState:UIControlStateSelected];