触摸时更大的触摸

Question

I need a way for the user to have a bigger touch when in comes to pressing a button. This way the user can miss the button but still click it. Is there a way to do this? I don't want to change the button class just the area in which the user clicks..

Thanks!!! ps I'm pretty good at logical thinking... I just need some code

Answer 1

1)you can use [yourButtonType setBackgroundImage:yourImage forState:UIControlStateNormal]; you could make you image like this,

-------------------------------------------
| transparent, transparent, transparent   |
| transparent,yourOpaqueImage, transparent|
| transparent, transparent, transparent   |
|------------------------------------------

In fact the button frame is larger , but the user can not aware

2)you can use touchesEnded,like this

- (void)touchesEnded:(UITouch *)touch withEvent:(UIEvent *)event
{
    CGPoint location = [touch locationInView:self];
    CGRect btnRect = CGRectMake(btn.frame.origon.x-10,btn.frame.origon.y-10 , btn.frame.size.width+20, btn.frame.size.height+20);
    if (CGRectContainsPoint(btnRect, location)) {
         //sender your button
    }
}