我如何让文字适合UIButton？

problem:

Button size is enough, however when I change title, the title text cannot fit the button width. Any SDK function can solve this problem, or I need to manually code to solve it?

按钮大小就足够了，但是当我更改标题时，标题文本无法适应按钮宽度。任何SDK功能都可以解决这个问题，或者我需要手动编码来解决它？

Please refer to following pictures.

请参考以下图片。

design in the nib file. 我如何让文字适合UIButton？

在nib文件中设计。

initial show in simulator 我如何让文字适合UIButton？

最初在模拟器中显示

when I change the title text 我如何让文字适合UIButton？

当我改变标题文字时

tried some ways before

_button.titleLabel.adjustsFontSizeToFitWidth = YES;
the way will change my font size. I cannot accept the way.

_button.titleLabel.adjustsFontSizeToFitWidth = YES;这种方式会改变我的字体大小。我不能接受的方式。
[_button setTitleEdgeInsets:UIEdgeInsetsMake(10.0, 10.0, 0.0,0.0)];
the way change label's position only, not label size.

[_button setTitleEdgeInsets：UIEdgeInsetsMake（10.0,10.0,0.0,0.0）];改变标签位置的方式，而不是标签尺寸。
[_button.titleLabel sizeToFit];
result is same with picture(3).

[_button.titleLabel sizeToFit];结果与图片（3）相同。
[_button sizeToFit];
title moved to upper left corner, and the title still the same result.

[_button sizeToFit];标题移到左上角，标题仍然是相同的结果。

Just confused, my button size is big enough, why title size is so small?

只是困惑，我的按钮大小足够大，为什么标题尺寸这么小？

5 个解决方案

#1

Use this.

用这个。

Objective-c

Objective-C的

button.titleLabel.numberOfLines = 1;
button.titleLabel.adjustsFontSizeToFitWidth = YES;
button.titleLabel.lineBreakMode = NSLineBreakByClipping;

Swift 2.0

button.titleLabel?.numberOfLines = 0
button.titleLabel?.adjustsFontSizeToFitWidth = true
button.titleLabel?.lineBreakMode = NSLineBreakMode.ByWordWrapping

NOTE: Swift code courtesy: @Rachel Harvey

注意：Swift代码礼貌：@Rachel Harvey

#2

For people who come across with this question:

对于遇到这个问题的人：

Try using the setter:

尝试使用setter：

 [self.myButton setTitle:@"Title" forState:UIControlStateNormal];
 [self.myButton sizeToFit];

#3

Make sure also that the label doesn't adjust later spacing, as that seems to take precedence over adjusting font size. Also make sure the minimumScaleFactor < 1.

还要确保标签不会调整以后的间距，因为这似乎优先于调整字体大小。还要确保minimumScaleFactor <1。

button.titleLabel.adjustsFontSizeToFitWidth = YES;
button.titleLabel.adjustsLetterSpacingToFitWidth = NO;
button.titleLabel.minimumScaleFactor = 0.5;

#4

Here is the Swift version:

这是Swift版本：

    let button = UIButton()
    button.titleLabel?.numberOfLines = 1
    button.titleLabel?.adjustsFontSizeToFitWidth = true
    button.titleLabel?.lineBreakMode = NSLineBreakMode.ByClipping

#5

In IB, just select the button, go to the editor menu, and choose "Size To Fit Content"

在IB中，只需选择按钮，转到编辑器菜单，然后选择“尺寸适合内容”

#1