如何在不增加背景图像大小的情况下增加(自定义类型)UIButton的可拍摄(击打)区域

Question

是否可以在不改变Button背景图像大小的情况下增加UIButton的可拍摄区域

我试过了:

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

&

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

但这些都没有奏效.

有什么建议吗？

Answer 1

制作类型的UIButton buttonWithType:UIButtonTypeCustom并为其分配较小尺寸的图像.

不要将图像设置为背景图像,否则它将随按钮一起增长.将其设置为主图像.

例如,如果要将可点击区域设置为64x64大小,并且要显示大小为32x32的图像:按钮大小应为64x64,图像大小应为32x32.

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)];

界面生成器: