I have created a custom UIButton (UIButton subclass) for my application. Within this button's implementation, how would I alter the background color when it is pressed? (It should revert to it's normal background when depressed. I am currently using Core Graphics to draw a gradient background.)
I have tried branching in drawRect:
(checking for self.selected
and self.highlighted
, but no change occurs because drawRect
is not being called on the touch event.
Any suggestions or code samples are appreciated.
Try calling [self setNeedsRedraw]
in your touch event.
Asker provided a solution based on this answer and the comments below.
Solution
Used:
[self addTarget:self action:@selector(buttonPressed) forControlEvents:UIControlEventTouchDown];
[self addTarget:self action:@selector(buttonDepressed) forControlEvents:UIControlEventTouchUpInside | UIControlEventTouchUpOutside | UIControlEventTouchCancel];
Where the selectors are custom functions that perform the background change.
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