仿iOS图标抖动
仿iOS图标抖动
#import"LHViewController.h"
#defineangelToRandian(x)((x)/180.0*M_PI)
@interfaceLHViewController()
@property(strong,nonatomic)IBOutletUIImageView*imageView;
@end
@implementationLHViewController
-(void)viewDidLoad
{
[superviewDidLoad];
//Doanyadditionalsetupafterloadingtheview,typicallyfromanib.
UILongPressGestureRecognizer*longPress=[[UILongPressGestureRecognizeralloc]initWithTarget:selfaction:@selector(longPress:)];
[self.imageViewaddGestureRecognizer:longPress];
}
-(void)longPress:(UILongPressGestureRecognizer*)longPress
{
if(longPress.state==UIGestureRecognizerStateBegan){
CAKeyframeAnimation*anim=[CAKeyframeAnimationanimation];
anim.keyPath=@"transform.rotation";
anim.values=@[@(angelToRandian(-7)),@(angelToRandian(7)),@(angelToRandian(-7))];
anim.repeatCount=MAXFLOAT;
anim.duration=0.2;
[self.imageView.layeraddAnimation:animforKey:nil];
self.btn.hidden=NO;
}
}
-(IBAction)delete:(id)sender{
[self.imageViewremoveFromSuperview];
[self.btnremoveFromSuperview];
}
@end
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