iOS实现图片抖动效果

    本文实例为大家分享了iOS实现图片抖动效果的具体代码,供大家参考,具体内容如下

    效果图:

    核心代码:

    
    //
    // 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

    小编再给大家补充一段iOS UIView视图抖动效果的实现代码:

    
    /**
     * 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];
    }

    以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持lingkb。