how to add the touch area of a button?

Question

selectgroup = [UIButton buttonWithType:UIButtonTypeCustom];
selectgroup.frame  = CGRectMake(screenWidth/4-23/2, 158, 23, 23) ;
selectgroup.hidden = NO;
UIImage *selectgroupimg = [UIImage imageNamed:@"groupicon2.png"];
[selectgroup setBackgroundImage:selectgroupimg forState:UIControlStateNormal];
//[selectgroup setcontentEdgeInsets : UIEdgeInsetsMake(0, 150, screenWidht/2, 30)];
[selectgroup addTarget:self action:@selector(selectgroup:) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:selectgroup];

I want to increase the clickable area of the button to (0,150,screenwidth/2,30). I have try to set contentEdgeInsets and imageEdgeinsets but both doesn't work.

How can I do that?

What do you mean by clickable area? You can tap any where on button it will call its action. — Nirav D, Jun 22 '16 at 11:48
Add your image in UIImageView and then add button with clear background, make button as big as much. — Kampai, Jun 22 '16 at 12:00

Jugal K Balara · Accepted Answer · 2016-06-22T12:14:54.420

1

You need to set image like (Button property setImage and setBackgroundImage both are different)

UIImage *btnImage = [UIImage imageNamed:@"image.png"];
[buttonObject setImage:btnImage forState:UIControlStateNormal];forState:UIControlStateNormal];

then Set button frame you want

buttonObject.frame  = CGRectMake(0,150,screenwidth/2,30);

edited Jun 22 '16 at 12:14

answered Jun 22 '16 at 12:02

Jugal K Balara

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score 0 · Answer 2 · answered Jun 22 '16 at 11:56

0

Subclass UIButton, Or category/extension,, and use it like this:

-(BOOL) pointInside:(CGPoint)point withEvent:(UIEvent *)event {
    return CGRectContainsPoint(UIEdgeInsetsInsetRect(self.bounds, UIEdgeInsetsMake(-44, -44, -44, -44)), point);
}

answered Jun 22 '16 at 11:56

MCMatan

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what is self.bounds ? – Waitak Jong Jun 22 '16 at 12:00
@WaitakJong self = your button. You should add this method on a subclass of UIButton, This method is ovvriding UIButton functionality. – MCMatan Jun 22 '16 at 12:40

how to add the touch area of a button?

2 Answers2