直接上代码:

////  ViewController.m//  密码错误--抖动动画////  Created by 刘志武 on 16/8/6.//  Copyright © 2016年 zhiwuLiu. All rights reserved.//#import "ViewController.h"@interface ViewController ()@end@implementation ViewController- (void)viewDidLoad {    [super viewDidLoad];    // Do any additional setup after loading the view, typically from a nib.        UILabel *label = [[UILabel alloc]initWithFrame:CGRectMake(50, 300, 200, 30)];    label.backgroundColor = [UIColor purpleColor];    label.tag = 1000;    [self.view addSubview:label];            }-(void)touchesBegan:(NSSet
     
       *)touches withEvent:(UIEvent *)event{        UILabel *label = [self.view viewWithTag:1000];        [self shakeAnimationForView:label];        }#pragma mark 抖动动画- (void)shakeAnimationForView:(UIView *) view{    // 获取到当前的View    CALayer *viewLayer = view.layer;    // 获取当前View的位置    CGPoint position = viewLayer.position;    // 移动的两个终点位置    CGPoint x = CGPointMake(position.x + 5, position.y);    CGPoint y = CGPointMake(position.x - 5, position.y);    // 设置动画    CABasicAnimation *animation = [CABasicAnimation animationWithKeyPath:@"position"];    // 设置运动形式    [animation setTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut]];    // 设置开始位置    [animation setFromValue:[NSValue valueWithCGPoint:x]];    // 设置结束位置    [animation setToValue:[NSValue valueWithCGPoint:y]];    // 设置自动反转    [animation setAutoreverses:YES];    // 设置时间    [animation setDuration:.06];    // 设置次数    [animation setRepeatCount:3];    // 添加上动画    [viewLayer addAnimation:animation forKey:nil];    }- (void)didReceiveMemoryWarning {    [super didReceiveMemoryWarning];    // Dispose of any resources that can be recreated.}@end