This is actually on iPhone... Core Animation is always active on
iPhone, there's no wantsLayer function...
Here is all the relevent code:
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event; {
[self doHighlightEffect:SGUIButtonOpaqueEffect];
[super touchesBegan:touches withEvent:event];
}
//- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event;
- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event; {
[self doHighlightEffect:SGUIButtonSlideEffect];
[super touchesEnded:touches withEvent:event];
}
- (void)doHighlightEffect:(SGUIButtonHighlightEffect)highlightEffect; {
[CATransaction begin]; // Begin grouping animated property changes
if (highlightEffect == SGUIButtonOpaqueEffect) {
[CATransaction begin];
[CATransaction setValue:[NSNumber numberWithFloat:5.0f]
forKey:kCATransactionAnimationDuration];
self.layer.opacity = 1.0;
[CATransaction commit];
} else if (highlightEffect == SGUIButtonSlideEffect) {
[CATransaction begin];
[CATransaction setValue:[NSNumber numberWithFloat:1.0f]
forKey:kCATransactionAnimationDuration];
self.layer.bounds = CGRectMake(self.layer.position.x,
self.layer.position.y, self.bounds.size.width + 10,
self.bounds.size.height);
[CATransaction commit];
[CATransaction begin];
[CATransaction setValue:[NSNumber numberWithFloat:2.0f]
forKey:kCATransactionAnimationDuration];
self.layer.position = CGPointMake(self.layer.position.x -
self.layer.bounds.size.width, self.layer.position.y);
[CATransaction commit];
}
[CATransaction commit];
}
On 19 May 2008, at 18:23, Brian Christensen wrote:
On May 19, 2008, at 1:06 , Adam Radestock wrote:
It's in a function called from within the mouseDown: handler in my
subclass. I just don't get why the implicit animation isn't working?
A couple of things:
1) Make sure that somewhere up the hierarchy of your button's
superviews one of them has the "Wants Layer" option in IB checked,
or that you're setting "[someSuperviewOfCustomButton
setWantsLayer:YES]" in code somewhere.
2) If #1 isn't the issue, it would help if you posted your entire
mouseDown: method. I have run into an issue with animations not
happening when they should be, but I don't know if your issue is the
same as the one I had recently without seeing more context.
/brian
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