调整UITextView的行距 [英] Adjusting the line spacing of UITextView

问题描述

如何调整UITextView的行高(行距)?我在哪里更改/添加代码?我目前正在尝试将代码添加到AppDelegate.swift文件中的 didFinishLaunchingWithOptions 函数中.这是我的代码:

How do I adjust the line height (line spacing) of a UITextView? Where do I change / add the code? I'm currently trying to add code to the didFinishLaunchingWithOptions function in the AppDelegate.swift file. Here is my code:

func application(application: UIApplication!, didFinishLaunchingWithOptions launchOptions:     NSDictionary!) -> Bool {
    // Override point for customization after application launch.
    var paragraphStyle = NSMutableParagraphStyle()
    return true
}

然后，我选择UITextView并添加以下用户定义的运行时属性:

Then I select the UITextView and add User Defined Runtime Attributes of the following:

paragraphStyle.lineSpacing = 40

我已经知道我做错了事；我该怎么做?

I already know I'm doing this completely wrong; how I could do it right?

推荐答案

您只是在创建一个空的段落样式.只有应用程序代表知道这一点.

You are simply creating an empty paragraph style. Only the app delegate knows about it.

相反，您应该在管理 UITextView 的类中为文本设置样式(没有 UITextLabel 这样的东西).获得对文本视图的引用后，可以执行以下操作:

Instead, you should style your text in the class that manages the UITextView (there is no such thing as a UITextLabel). After you have obtained a reference to your text view you can do this:

let style = NSMutableParagraphStyle()
style.lineSpacing = 40
let attributes = [NSParagraphStyleAttributeName : style]
textView.attributedText = NSAttributedString(string: yourText, attributes:attributes)

您还可以仅将样式应用于文本的指定部分( NSRange ).但这稍微复杂一点，所以您应该在这里问另一个问题.

You can also apply a style only to a specified portion (NSRange) of a text. But this is slightly more complicated, so you should ask another question here.

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