1 #import "AppDelegate.h"
2 #import <QuartzCore/QuartzCore.h>
3
4 @interface AppDelegate ()
5 @property (nonatomic ,strong)UIImageView *birdImage;
6 @end
7
8 @implementation AppDelegate
9
10 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
11 self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
12 // Override point for customization after application launch.
13 self.window.backgroundColor = [UIColor whiteColor];
14 // 创建UIImageView
15 self.birdImage = [[UIImageView alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
16 //设置UIImageView可以操作
17 self.birdImage.userInteractionEnabled = YES;
18 // 添加图片
19 self.birdImage.image = [UIImage imageNamed:@"bird"];
20 // 轻拍手势
21 UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapAntion)];
22 // 给UIImageView添加手势
23 [self.birdImage addGestureRecognizer:tap];
24 [self.window addSubview:self.birdImage];
25
26 [self.window makeKeyAndVisible];
27 return YES;
28 }
29
30 - (void)tapAntion
31 {
32 // 设置层的背景颜色
33 self.window.layer.backgroundColor = [UIColor whiteColor].CGColor;
34 // 创建动画
35 CATransition *anim = [CATransition animation];
36 //设置代理
37 anim.delegate = self;
38 // 设置动画时间
39 anim.duration = 1.5;
40 //吸收效果，像是在Mac上的垃圾桶的效果一样（私有API，没有列入官方API）
41 anim.type = @"suckEffect";
42 [[self.birdImage layer] addAnimation:anim forKey:@"suckEffect"];
43 // 隐藏self.birdImage（若不隐藏，图片会保留在窗口）
44 self.birdImage.hidden = YES;
45 }
46
47 @end