首先,我们得继承一个UIButton,然后重写 - (BOOL)pointInside:(CGPoint)point withEvent:(UIEvent *)event 这个方法,苹果的概念是点击区域最好不小于44 point,所以我们根据这个数值计算我们的点击区域。上代码。
自定义按钮 扩大按钮点击范围
```
- (BOOL)pointInside:(CGPoint)point withEvent:(UIEvent*)event
{
CGRectbounds =self.bounds;
CGFloatwidthDelta =44.0- bounds.size.width;
CGFloatheightDelta =44.0- bounds.size.height;
bounds =CGRectInset(bounds, -0.5* widthDelta, -0.5* heightDelta);//注意这里是负数,扩大了之前的bounds的范围
returnCGRectContainsPoint(bounds, point);
}
```