ios - 如何增加UIButton的选择区域？

Question

我已经以编程方式制作了UIButton

togglebutton = [UIButton buttonWithType:UIButtonTypeCustom];
togglebutton.frame = CGRectMake(42, 15, 80, 21);
[togglebutton addTarget:self action:@selector(toggleview)   
forControlEvents:UIControlEventTouchUpInside];
[togglebutton setImage:[UIImage imageNamed:@"squ.png"] forState:UIControlStateNormal];
[buttonView addSubview:togglebutton];

它看起来像上图中的右键。现在的要求是这个按钮的选择区域要大于uibutton图片。这样用户就可以通过触摸特定按钮附近的区域来轻松单击按钮。

[togglebutton setImageEdgeInsets: UIEdgeInsetsMake( 0, -30, 0, -25)];

我尝试设置image inset 但它使image 不规则。请关注这个问题。

Answer 1

可以通过设置按钮的contentEdgeInsets来实现，例如:

toggleButton.contentEdgeInsets = UIEdgeInsetsMake(0, 15, 0, 0); //set as you require