////  HomePageViewController.m//  ParkingProject////  Created by Eric on 16/10/13.//  Copyright © 2016年 Eric. All rights reserved.//#import "HomePageViewController.h"@interface HomePageViewController ()@property(nonatomic,strong)UIButton *naviButton;@end@implementation HomePageViewController-(void)viewWillAppear:(BOOL)animated{    [super viewWillAppear:animated];   self.naviButton.hidden = YES;}-(void)viewDidAppear:(BOOL)animated{    [super viewDidAppear:animated];          [self handleCASpringAnimation];}- (void)viewDidLoad {    [super viewDidLoad];    // Do any additional setup after loading the view.    self.naviButton = [UIButton buttonWithType:UIButtonTypeCustom];    self.naviButton.frame = CGRectMake(kDeviceWidth/2-10,200, 80, 20);    [self.naviButton setTitle:@"动画" forState:UIControlStateNormal];    [self.naviButton setBackgroundColor:[UIColor orangeColor]];    [self.view addSubview:self.naviButton];   }-(void)handleCASpringAnimation{    CGRect screen = [UIScreen mainScreen].bounds;    CATransform3D move = CATransform3DIdentity;    CGFloat initAlertViewYPosition = (CGRectGetHeight(screen) + CGRectGetHeight(_naviButton.frame)) / 2;        move = CATransform3DMakeTranslation(0, -initAlertViewYPosition, 0);    move = CATransform3DRotate(move, 40 * M_PI/180, 0, 0, 1.0f);        _naviButton.layer.transform = move;        [UIView animateWithDuration:1.0f                          delay:0.0f         usingSpringWithDamping:0.4f          initialSpringVelocity:0.0f                        options:UIViewAnimationOptionCurveLinear                     animations:^{                         self.naviButton.hidden = NO;                         CATransform3D init = CATransform3DIdentity;                         _naviButton.layer.transform = init;                                              }                     completion:^(BOOL finished) {                     }];    }- (void)didReceiveMemoryWarning {    [super didReceiveMemoryWarning];    // Dispose of any resources that can be recreated.    }-(void)touchesBegan:(NSSet
     
       *)touches withEvent:(UIEvent *)event{    [self handleCASpringAnimation];}/*#pragma mark - Navigation// In a storyboard-based application, you will often want to do a little preparation before navigation- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {    // Get the new view controller using [segue destinationViewController].    // Pass the selected object to the new view controller.}*/@end
     

关键代码如上.