Hi all,
I've been trying to detect touch and hold vs touch on a subclass of UIButton. I
basically accomplished that by doing the following:
I first add the following when the button is created:
[button addTarget:self action:@selector(sourceSelected:)
forControlEvents:UIControlEventTouchUpInside];
[button addTarget:self action:@selector(sourceTouchDown:)
forControlEvents:UIControlEventTouchDown];
Then in the functions:
- (void) sourceSelected:(UIButton*) sender {
// cancel request for extended meny
[NSObject cancelPreviousPerformRequestsWithTarget:self
selector:@selector(sourceSelectedExtended:) object:sender];
...
}
- (void) sourceTouchDown:(UIButton*) sender {
// give time before performing action
[self performSelector:@selector(sourceSelectedExtended:)
withObject:sender afterDelay:0.5];
}
- (void) sourceSelectedExtended:(UIButton*) sender {
// remove action from button
[sender removeTarget:self action:@selector(sourceSelected:)
forControlEvents:UIControlEventTouchUpInside];
...
...
// give time before performing action
[self performSelector:@selector(addSourceAction:) withObject:sender
afterDelay:1.];
}
- (void) addSourceAction:(UIButton*)sender {
// remove action from button
[sender addTarget:self action:@selector(sourceSelected:)
forControlEvents:UIControlEventTouchUpInside];
}
Now, this works fine, but then I thought there must be an easier (and
definitely more elegant) way to accomplish the same thing.
Can someone through me a line here?
Thank you all,
aa
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