iOS实现图片抖动效果

//// ViewController.m// 图标抖动//// Created by llkj on 2017/8/29.// Copyright © 2017年 LayneCheung. All rights reserved.//#import "ViewController.h"#define angle2Rad(angle) ((angle) / 180.0 *M_PI)@interface ViewController ()@property (weak, nonatomic) IBOutlet UIImageView *imageV;@end@implementation ViewController- (void)viewDidLoad { [super viewDidLoad]; self.imageV.userInteractionEnabled = YES; //添加长按手势 UILongPressGestureRecognizer *longPress = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(longPress:)]; [self.imageV addGestureRecognizer:longPress];}- (void)longPress:(UILongPressGestureRecognizer *)longPress{ //创建动画对象 CAKeyframeAnimation *anim = [CAKeyframeAnimation animation]; anim.keyPath = @"transform.rotation"; anim.values = @[@(angle2Rad(-5)),@(angle2Rad(5))]; anim.repeatCount = MAXFLOAT;// anim.duration = 1; anim.autoreverses = YES; [self.imageV.layer addAnimation:anim forKey:nil];}- (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated.}@end

/** * 抖动效果 * * @param view 要抖动的view */- (void)shakeAnimationForView:(UIView *) view { CALayer *viewLayer = view.layer; CGPoint position = viewLayer.position; CGPoint x = CGPointMake(position.x + 1, position.y); CGPoint y = CGPointMake(position.x - 1, position.y); CABasicAnimation *animation = [CABasicAnimation animationWithKeyPath:@"position"]; [animation setTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionDefault]]; [animation setFromValue:[NSValue valueWithCGPoint:x]]; [animation setToValue:[NSValue valueWithCGPoint:y]]; [animation setAutoreverses:YES]; [animation setDuration:.06]; [animation setRepeatCount:3]; [viewLayer addAnimation:animation forKey:nil];}