Resize a UIButton with touch events

Question

How can we resize a UIbutton in IOS,i have a button with CGRectMake (30,50,120,200)when the application is running ,the user can taptohold or pinch gesture to make the button big or small according to his needs.lke the zooming function of scrollview ..How to do this.thanks in advance.

score 3 · Answer 1 · answered Mar 26 '12 at 14:49

Use the CGAffineTransformMakeScale like this

button.transform = CGAffineTransformMakeScale(1.2, 1.2)

scale it to normal

button.transform = CGAffineTransformMakeScale(1.0, 1.0)

If you want animation

[UIView animateWithDuration:0.3
                     animations:^{
                         button.transform = CGAffineTransformMakeScale(1.2, 1.2);
                     }
                     completion:NULL];

score 2 · Answer 2 · edited Aug 06 '18 at 12:29

2

Use an UIPinchGestureRecognizer on the button to detect the gesture. Then resize the frame, or use an AffineTransform. (button.transform = CGAffineTransformMakeScale(scaleFactor,scaleFactor)).

edited Aug 06 '18 at 12:29

halfer

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answered Mar 26 '12 at 14:49

calimarkus

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Resize a UIButton with touch events

2 Answers2