1 //
2 // UIDemoViewController.m
3 // 06-1UIScrollDemo
4 //
5 // Created by k on 14-9-4.
6 // Copyright (c) 2014年 com.akleee.www. All rights reserved.
7 //
8
9 #import "UIDemoViewController.h"
10
11 @interface UIDemoViewController ()<UIScrollViewDelegate>
12 @property (weak, nonatomic) IBOutlet UIScrollView *scrollViw;
13 @property (weak, nonatomic) IBOutlet UIImageView *img;
14
15 - (IBAction)changeOffset:(id)sender;
16
17
18 @end
19
20 @implementation UIDemoViewController
21
22 - (void)viewDidLoad
23 {
24 [super viewDidLoad];
25 // Do any additional setup after loading the view, typically from a nib.
26 //NSLog(@"%@",NSStringFromCGRect(_img.frame));
27
28 //设置可移动区域
29 _scrollViw.contentSize=_img.bounds.size;
30
31 //可视窗口位置
32 int moveTop=100,moveLeft=100;
33
34 _scrollViw.contentOffset=CGPointMake(moveTop, moveLeft);
35
36 //可视窗口大小
37 //int windowW=100,windowH=400,windowX=10,windowY=20;
38 // _scrollViw.frame=CGRectMake(windowX, windowY, windowW, windowH);
39
40 //外边距
41 int paddingT=10,paddingL=10,paddingR=20,paddingB=20;
42
43 _scrollViw.contentInset=UIEdgeInsetsMake(paddingT, paddingL, paddingB, paddingR);
44
45 //水平滚动条
46 // _scrollViw.showsHorizontalScrollIndicator=NO;
47 //
48 // //垂直滚动条
49 // _scrollViw.showsVerticalScrollIndicator=NO;
50
51 _scrollViw.delegate=self;
52
53 _scrollViw.maximumZoomScale=2;
54
55 _scrollViw.minimumZoomScale=0.1;
56
57 }
58
59
60 - (void)didReceiveMemoryWarning
61 {
62 [super didReceiveMemoryWarning];
63 // Dispose of any resources that can be recreated.
64 }
65 -(void)scrollViewWillBeginDragging:(UIScrollView *)scrollView{
66 //开始拖拽
67 //NSLog(@"scrollViewWillBeginDragging %@",NSStringFromCGPoint(scrollView.contentOffset));
68
69 }
70 -(void)scrollViewDidScroll:(UIScrollView *)scrollView {
71 //正在拖拽
72 //NSLog(@"scrollViewDidScroll %@",NSStringFromCGPoint(scrollView.contentOffset));
73 }
74
75
76 -(void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate{
77 //拖拽结束
78 //NSLog(@"scrollViewDidEndDragging %@",NSStringFromCGPoint(scrollView.contentOffset));
79 }
80
81 -(void)scrollViewWillBeginDecelerating:(UIScrollView *)scrollView{
82 //拖动后开始滑行
83 //NSLog(@"scrollViewWillBeginDecelerating %@",NSStringFromCGPoint(scrollView.contentOffset));
84 }
85 -(void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView{
86
87 //拖动后滑行结束
88 //NSLog(@"scrollViewDidEndDecelerating %@",NSStringFromCGPoint(scrollView.contentOffset));
89
90 }
91 -(void)scrollViewDidScrollToTop:(UIScrollView *)scrollView{
92 //滑动到下方内容 点击系统顶部导航 自动定位到顶部时触发
93 //NSLog(@"scrollViewDidScrollToTop %@",NSStringFromCGPoint(scrollView.contentOffset));
94
95 }
96
97
98 -(BOOL)scrollViewShouldScrollToTop:(UIScrollView *)scrollView{
99 //滑动到下方内容 点击系统顶部导航
100 NSLog(@"scrollViewShouldScrollToTop %@",NSStringFromCGPoint(scrollView.contentOffset));
101 //返回是否 自动定位到顶部
102 return NO;
103 }
104
105 -(void)scrollViewDidEndScrollingAnimation:(UIScrollView *)scrollView{
106 // 当触发[_scrollViw setContentOffset:CGPointMake(200, 200) animated:YES];后 触发此事件
107 //如果animated:NO的话 不会触发此事件
108 //NSLog(@"scrollViewDidEndScrollingAnimation %@",NSStringFromCGPoint(scrollView.contentOffset));
109 }
110
111 -(UIView *)viewForZoomingInScrollView:(UIScrollView *)scrollView{
112 //设置需要缩放的UIView
113 // NSLog(@"viewForZoomingInScrollView %@",NSStringFromCGPoint(scrollView.contentOffset));
114
115
116 return _img;
117
118 }
119
120 -(void)scrollViewWillBeginZooming:(UIScrollView *)scrollView withView:(UIView *)view{
121 //开始缩放
122 NSLog(@"scrollViewWillBeginZooming");
123
124 }
125
126 -(void)scrollViewDidEndZooming:(UIScrollView *)scrollView withView:(UIView *)view atScale:(CGFloat)scale
127 {
128 //结束缩放
129 NSLog(@"scrollViewDidEndZooming");
130
131
132 }
133
134
135
136
137
138 - (IBAction)changeOffset:(id)sender {
139 NSLog(@"change offset");
140 [_scrollViw setContentOffset:CGPointMake(200, 200) animated:NO];
141 //_scrollViw .contentOffset=CGPointMake(200, 200);
142 }
143 @end
