仿iOS图标抖动_IOS开发--HTML5中文学习网

　　最近闲来无聊，研究了一下IPhone桌面图标的抖动，网上有一个类似的事例，但是我看来效果实在不佳，自己也来写一个玩玩，有需要的小伙伴可以参考下。

　　仿iOS图标抖动

#import "LHViewController.h"

#define angelToRandian(x) ((x)/180.0*M_PI)

@interface LHViewController ()

@property (strong, nonatomic) IBOutlet UIImageView *imageView;

@end

@implementation LHViewController

- (void)viewDidLoad

{

[super viewDidLoad];

// Do any additional setup after loading the view, typically from a nib.

UILongPressGestureRecognizer* longPress=[[UILongPressGestureRecognizer alloc]initWithTarget:self action:@selector(longPress:)];

[self.imageView addGestureRecognizer:longPress];

}

-(void)longPress:(UILongPressGestureRecognizer*)longPress

{

if (longPress.state==UIGestureRecognizerStateBegan) {

CAKeyframeAnimation* anim=[CAKeyframeAnimation animation];

anim.keyPath=@"transform.rotation";

anim.values=@[@(angelToRandian(-7)),@(angelToRandian(7)),@(angelToRandian(-7))];

anim.repeatCount=MAXFLOAT;

anim.duration=0.2;

[self.imageView.layer addAnimation:anim forKey:nil];

self.btn.hidden=NO;

}

- (IBAction)delete:(id)sender {

[self.imageView removeFromSuperview];

[self.btn removeFromSuperview];

}

@end

　　以上所述就是本文的全部内容了，希望大家能够喜欢。