1 //
2 // ViewController.m
3 // UIWindowsApp
4 //
5 // Created by on 21/09/2017.
6 // Copyright © 2017 . All rights reserved.
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* iView = [[UIImageView alloc]init];
27
28 iView.image = image;
29
30 iView.frame = CGRectMake(50, 100, 220, 300);
31
32 iView.tag = 101;
33
34 [self.view addSubview:iView];
35
36
37 }
38 //手指触碰到屏幕
39 -(void) touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event
40 {
41 UITouch* touch = [touches anyObject];
42 if(touch.tapCount == 1)
43 {
44 NSLog(@"单击"); //
45 }else if(touch.tapCount == 2)
46 {
47 NSLog(@"双击666");//双击时会触发单击事件，什么鬼？？？
48 }
49 _mPtLast = [touch locationInView:self.view];
50 NSLog(@"手指触碰瞬间");
51 }
52 //手指接触到屏幕，并且没有离开时被调用
53 -(void) touchesMoved:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event
54 {
55 UITouch * touch = [touches anyObject];
56
57 CGPoint pt = [touch locationInView:self.view];
58
59 float xOffset = pt.x - _mPtLast.x;
60 float yOffset = pt.y - _mPtLast.y;
61
62 _mPtLast = pt;
63
64 UIImageView * view =(UIImageView*)[self.view viewWithTag:101];
65
66 view.frame = CGRectMake(view.frame.origin.x+xOffset, view.frame.origin.y+yOffset, view.frame.size.width, view.frame.size.height);
67
68
69 NSLog(@"x = %f,y=%f",pt.x,pt.y);
70
71 }
72 //手指离开时被调用
73 -(void) touchesEnded:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event
74 {
75 NSLog(@"手指离开时被调用");
76 }
77
78 // 特殊情况下的中段事件，例如电话，信息切入时，会取消当前的手势。
79 // 用来做紧急的数据保存等
80 -(void) touchesCancelled:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event
81 {
82 NSLog(@"");
83 }
84
85
86
87 - (void)didReceiveMemoryWarning {
88 [super didReceiveMemoryWarning];
89 // Dispose of any resources that can be recreated.
90 }
91
92
93 @end
1 //
2 // ViewController.h
3 // UIWindowsApp
4 //
5 // Created by
6 // Copyright ©
7 //
8
9 #import <UIKit/UIKit.h>
10
11 @interface ViewController : UIViewController
12 {
13
14 CGPoint _mPtLast;
15
16
17 }
18
19 //属性定义
20 //@property(retain,nonatomic) UITextField* textField;
21
22
23
24
25 @end
