1 //
2 // ViewController.m
3 // UIWindowsApp
4 //
7 //
8
9 #import "ViewController.h"
10 #import "ViewController2.h"
11
12 @interface ViewController ()
13
14 @end
15
16 @implementation ViewController
17
18
19
20
21 - (void)viewDidLoad {
22 [super viewDidLoad];
23
24 UIImage* image = [UIImage imageNamed:@"1.jpg"];
25
26 UIImageView* _imageView= [[UIImageView alloc]init];
27
28 _imageView.image = image;
29
30 _imageView.frame = CGRectMake(50, 100, 220, 300);
31
32 //_imageView.tag = 101;
33
34 //是否开启交互事件响应开关，默认值为NO
35 _imageView.userInteractionEnabled = YES;
36
37 [self.view addSubview:_imageView];
38
39 _pinchGes = [[UIPinchGestureRecognizer alloc] initWithTarget:self action:@selector(pinchAct:)];
40
41 // NSLog(@"fff.");
42 [_imageView addGestureRecognizer:_pinchGes];
43
44 _rotGes = [[UIRotationGestureRecognizer alloc] initWithTarget:self action:@selector(rotAct:)];
45
46 [_imageView addGestureRecognizer:_rotGes];
47
48 _pinchGes.delegate = self;
49 _rotGes.delegate = self;
50
51
52 }
53
54 //是否可以同时响应两个手势，yes 可以，no 不可以
55 -(BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer
56 {
57 return YES;
58 }
59
60 -(void) rotAct:(UIRotationGestureRecognizer*) rot
61 {
62 NSLog(@"ddddd");
63 UIImageView * _imageView = (UIImageView*) rot.view;
64
65 _imageView.transform = CGAffineTransformRotate(_imageView.transform, rot.rotation);
66
67 rot.rotation = 0;
68 }
69
70
71
72
73
74 -(void) pinchAct:(UIPinchGestureRecognizer*) pinch
75 {
76
77 //获得监控图像的视图
78 UIImageView * _imageView = (UIImageView*) pinch.view;
79
80 //p1:原来的矩阵
81 //p2:x方向的缩放
82 //p3:y方向的缩放
83 //返回值是新的缩放后的矩阵变换
84 _imageView.transform = CGAffineTransformScale(_imageView.transform, pinch.scale, pinch.scale);
85
86 //scale>1 放大
87 //scale<1 缩小
88 pinch.scale = 1;
89 }
90 - (void)didReceiveMemoryWarning {
91 [super didReceiveMemoryWarning];
92 // Dispose of any resources that can be recreated.
93 }
94
95
96 @end
1 //
2 // ViewController.h
3 // UIWindowsApp
4
5
6 #import <UIKit/UIKit.h>
7
8 @interface ViewController : UIViewController<UIGestureRecognizerDelegate>
9 {
10
11 //定义缩放，旋转手势
12 UIPinchGestureRecognizer* _pinchGes;
13
14 UIRotationGestureRecognizer* _rotGes;
15
16
17 }
18
19 //属性定义
20 //@property(retain,nonatomic) UITextField* textField;
21
22
23
24
25 @end
