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Editorial Team
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Asked: 2026-06-05T07:12:57+00:00

In my program, I have a UIButton declared programmatically as a property of a

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In my program, I have a UIButton declared programmatically as a property of a UIVIewController. I have set it up to send actions when the user triggers the touchUpInside event, as shown here:

[restartButton addTarget:self action:@selector(handleRestart) forControlEvents:UIControlEventTouchUpInside];
where restartButton is the name of the UIButton.

When I enter UIControlEventTouchDown in the forControlEvents parameter, it works fine. However, UIControlEventTouchUpInside simply does not work. Does anybody know why this is?

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1 Answer

  1. Editorial Team

    You may want to check the restartButton.bounds. You may simply have it set to a size of zero causing UIControlEventTouchUpInside never to occur. Best way of checking for it is to add borders to layer.

    [restartButton.layer setBorderWidth:1.0f];
[restartButton.layer setBorderColor:[UIColor redColor].CGColor];

    Don’t forget to #import <QuartzCore/QuartzCore.h> for above to work

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