Michael Whang tinybot-ca
qnoid
/ gist:6140282
Created
August 2, 2013 14:29
Animate an UIBarButtonItem that has been assigned a UIButton as its customview. The UIButton uses an image that is mirrored on the X axis hence appear as if it's rotating.
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| -(IBAction)tap:(id)sender | |
| { | |
| UIBarButtonItem *refresh = self.navigationItem.rightBarButtonItem; | |
| CALayer *layer = ((UIButton*)refresh.customView).imageView.layer; | |
| CABasicAnimation *rotate = [CABasicAnimation animationWithKeyPath:@"transform.rotation.z"]; | |
| rotate.timingFunction = [CAMediaTimingFunction functionWithName: kCAMediaTimingFunctionLinear]; | |
| rotate.fromValue = @(0); | |
| rotate.toValue = @(2 * M_PI); |