xcode 如何以编程方式更改文本字段字体大小？
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How to change textfield font size programmatically?
提问by chineseGirl
i have a button that create textfield, also i have button to change the textfield font. I create 3 button with different title 17,20,36 i want the functions of that button to change the font size of the textfield what will i do?
我有一个创建文本字段的按钮，我也有一个按钮来更改文本字段的字体。我创建了 3 个具有不同标题 17,20,36 的按钮，我希望该按钮的功能可以更改文本字段的字体大小，我该怎么办？
回答by monjer
If you want to simply change your textfield's font size , and not change it's font style at the same time , code below may be work : `
如果您只想更改文本字段的字体大小，而不是同时更改其字体样式，则以下代码可能有效：`
UITextField *yourTextField = [[UITextField alloc]init];
CGFloat yourSelectedFontSize = 14.0 ;
UIFont *yourNewSameStyleFont = [yourTextField.font fontWithSize:yourSelectedFontSize];
yourTextField.font = yourNewSameStyleFont ;
One thing you have to note is that : when you change your textfield's font size , you should always pay attention to your textfield view's height , keep your textfiled's height taller than your font height !
您必须注意的一件事是：当您更改文本字段的字体大小时，应始终注意文本字段视图的高度，保持文本字段的高度高于字体高度！
You can have a try !
你可以试一试！
回答by Adriana Carelli
Swift 4is this:
斯威夫特 4是这样的：
yourTextField.font = UIFont.init(name: (Montserrat.bold.rawValue), size: 18.0)
Instead Monserrat use your font
相反，Monserrat 使用您的字体
回答by inf1783
Swift 3Version of accepted answer:
Swift 3版本已接受的答案：
let yourTextField = UITextField()
let customFont:UIFont = UIFont.init(name: (textField.font?.fontName)!, size: 14.0)!
font = customFont
yourTextField.font = customFont
回答by damithH
yes you can do it.
是的，你可以做到。
but you have to change the textField's frame also(to show the full(height) text)
但是您还必须更改 textField 的框架（以显示完整（高度）文本）
[tFild_1 setFont:[UIFont fontWithName:@"Helvetica Neue" size:17]];
instead of "Helvetica Neue" use your font name.
使用您的字体名称而不是“Helvetica Neue”。
thanx,
谢谢，
