如何在不增加背景图像大小的情况下增加(自定义类型)UIButton 的可点击(点击)区域 [英] How to increase tapable (hitting) area of (custom Type) UIButton without increasing size of background image

问题描述

是否可以在不改变按钮背景图片大小的情况下增加 UIButton 的可点击区域

is it possible to increase tapable area of UIButton without changing size of Button's background Image

我试过了:

[shareButton setContentEdgeInsets:UIEdgeInsetsMake(top, left, bottom, right)];

&

[shareButton setImageEdgeInsets:UIEdgeInsetsMake(top, left, bottom, right)];

但这些都不起作用.

有什么建议吗?

推荐答案

制作类型为 buttonWithType:UIButtonTypeCustom 的 UIButton 并为其分配一个较小尺寸的图像.

Make the UIButton of type buttonWithType:UIButtonTypeCustom and assign to it an image of a smaller size.

不要将图片设置为背景图片，否则它会随按钮一起增长.改为将其设置为主图像.

Do not set the image as the background image or it'll grow with the button. Set it as the main image instead.

例如，如果您想将可点击区域设置为 64x64 大小，并且想要显示大小为 32x32 的图像:按钮大小应为 64x64，图像大小应为 32x32.

For example if you want to set the tappable area to a 64x64 size and you want to show an image sized 32x32: the button size should be be 64x64 and the image size should be 32x32.

以编程方式:

 UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];

// use an image with the desired size (for example 32x32)
[button setImage: [UIImage imageNamed: @"buttonIcon.png"] forState: UIControlStateNormal];
// just set the frame of the button (64x64)
[button setFrame: CGRectMake(xPositionOfMyButton, yPositionOfMyButton, 64, 64)];

界面构建器:

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