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

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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