blocks|key|63317|text|在Swift+3、4、5中：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|63318|button.setTitle("Button+Title",+for:+.normal)|code-block|syntax|javascript|63319|否则：|63320|button.setTitle("Button+Title",+forState:+UIControlState.Normal)|63321|此外，还必须为button声明一个@IBOutlet。|offset|length|style|CODE|63322|entityMap^0|0|0|0|0|7|6|H|9|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|U|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|W|8|@$M|X|N|Y|O|P]|$M|Z|N|10|O|P]]|9|@]|A|$]]|$1|Q|3|-4|5|6|7|11|8|@]|9|@]|A|$]]]|R|$]]

In Swift 3, 4, 5:

<pre><code>button.setTitle("Button Title", for: .normal)
</code></pre>

Otherwise:

<pre><code>button.setTitle("Button Title", forState: UIControlState.Normal)
</code></pre>

Also an <code>@IBOutlet</code> has to declared for the <code>button</code>.

blocks|key|4569579|text|Swift+3：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4569580|设置按钮标题：|4569581|//for+normal+state:
my_btn.setTitle("Button+Title",+for:+.normal)

//+For+highlighted+state:
my_btn.setTitle("Button+Title2",+for:+.highlighted)|code-block|syntax|javascript|4569582|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Swift 3:

Set button title:

<pre><code>//for normal state:
my_btn.setTitle("Button Title", for: .normal)

// For highlighted state:
my_btn.setTitle("Button Title2", for: .highlighted)
</code></pre>

blocks|key|4569619|text|Swift+3|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4569620|当您创建@IBAction时：|4569621|@IBAction+func+btnAction(_+sender:+UIButton)+{
++sender.setTitle("string+goes+here",+for:+.normal)
}|code-block|syntax|javascript|4569622|这会将发送者设置为UIButton+(而不是Any)，以便将btnAction作为UIButton的目标|4569623|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|O|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|P|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

Swift 3

When you make the @IBAction:

<pre><code>@IBAction func btnAction(_ sender: UIButton) {
 sender.setTitle("string goes here", for: .normal)
}
</code></pre>

This sets the sender as UIButton (instead of Any) so it targets the btnAction as a UIButton

blocks|key|4569634|text|Swift+5.0|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4569635|//+Standard+State
myButton.setTitle("Title",+for:+.normal)|code-block|syntax|javascript|4569636|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Swift 5.0 

<pre><code>// Standard State
myButton.setTitle("Title", for: .normal)
</code></pre>

blocks|key|63418|text|Swift+3|type|unstyled|depth|inlineStyleRanges|entityRanges|data|63419|let+button:+UIButton+=+UIButton()
button.frame+=+CGRect.init(x:+view.frame.width/2,+y:+view.frame.height/2,+width:+100,+height:+100)
button.setTitle(“Title+Button”,+for:+.normal)|code-block|syntax|javascript|63420|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Swift 3

<pre><code>let button: UIButton = UIButton()
button.frame = CGRect.init(x: view.frame.width/2, y: view.frame.height/2, width: 100, height: 100)
button.setTitle(“Title Button”, for: .normal)
</code></pre>

blocks|key|4569650|text|Swift+5：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4569651|++++let+controlStates:+Array<UIControl.State>+=+[.normal,+.highlighted,+.disabled,+.selected,+.focused,+.application,+.reserved]
++++for+controlState+in+controlStates+{
++++++++button.setTitle(NSLocalizedString("Title",+comment:+""),+for:+controlState)
++++}|code-block|syntax|javascript|4569652|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

<h2>Swift 5:</h2>

<pre><code> let controlStates: Array&lt;UIControl.State&gt; = [.normal, .highlighted, .disabled, .selected, .focused, .application, .reserved]
 for controlState in controlStates {
 button.setTitle(NSLocalizedString("Title", comment: ""), for: controlState)
 }
</code></pre>

blocks|key|4569688|text|要使用swift+-04为Xcode中的按钮设置标题:首先创建一个名为setTitle的方法，该方法具有如下所示的参数title和UIController状态；|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4569689|func+setTitle(_+title+:+String?,+for+state+:+UIControl.State)+++{

}|code-block|syntax|javascript|4569690|在你的按钮动作方法中回想一下这个方法，比如；|4569691|yourButtonName.setTitle("String",+for:+.state)|4569692|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

To set a title for a button in Xcode using swift - 04:
first create a method called setTitle with parameter title and UIController state like below ;

<pre><code>func setTitle(_ title : String?, for state : UIControl.State) {

}
</code></pre>

and recall this method in your button action method
like ;

<pre><code>yourButtonName.setTitle("String", for: .state)
</code></pre>

blocks|key|4569753|text|截至2021年12月12日-+Swift版本5.5.1%5E假设您已经有一个链接到yourButton的IBOutlet处于正常状态。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4569754|yourButton.setTitle("Title+of+your+button",+for:+.normal)|code-block|syntax|javascript|4569755|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

As of 12/12/2021 - Swift version 5.5.1^ assuming you already have an IBOutlet linked to yourButton in a normal state.
<pre><code>yourButton.setTitle(&quot;Title of your button&quot;, for: .normal)
</code></pre>

Simple question here. I have a UIButton, currencySelector, and I want to programmatically change the text. Here's what I have:

<pre><code>currencySelector.text = "foobar"
</code></pre>

Xcode gives me the error "Expected Declaration". What am I doing wrong, and how can I make the button's text change?

Changing text of UIButton programmatically swift

Swift

Xcode

这里有一个简单的问题。我有一个名为currencySelector的UIButton，我想以编程方式更改文本。这就是我所拥有的：currencySelector.text = "foobar"Xcode给我的错误是“预期的声明”。我做错了什么，如何更改按钮的文本？

问以编程方式快速更改UIButton的文本
EN

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问以编程方式快速更改UIButton的文本EN

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问以编程方式快速更改UIButton的文本
EN