1 - (void)viewDidLoad
2
3 {
4
5 [super viewDidLoad];
6
7 // Do any additional setup after loading the view.
8
9
10
11 // 滚动视图
12
13 UIScrollView *scrollView = [[UIScrollView alloc] initWithFrame:CGRectMake(20, 20, 280, 440)];
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15 scrollView.backgroundColor = [UIColor redColor];
16
17
18
19 // 设定滚动内容的范围（CGSize）
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21 scrollView.contentSize = CGSizeMake(2800, 0); // 横纵 坐标
22
23 // 关掉边缘的弹动搞效果
24
25 // srollView.bounces = NO;
26
27 // 偏移量(CGPoint)
28
29 // srollView.contentOffset = CGPointMake(-100, -100);
30
31 // 内容距离上 左 下 右边缘的距离
32
33 scrollView.contentInset = UIEdgeInsetsMake(0, 0, 0, 0);
34
35 // 滑动到顶部
36
37 scrollView.scrollsToTop = YES;
38
39 // 整屏翻动
40
41 scrollView.pagingEnabled = YES;
42
43 // srollView能不能滚动
44
45 scrollView .scrollEnabled = YES; // NO：不能滚动
46
47 // 是否显示横向的滚动条
48
49 scrollView.showsHorizontalScrollIndicator = YES;
50
51
52
53
54
55
56
57 // 2.将viewController设置为ScrollView的 代理人
58
59 scrollView.delegate = self;
60
61
62
63
64
65 // scrollView的缩放
66
67 // 缩放：1. 设置scrollView的缩放范围
68
69 scrollView.minimumZoomScale = 0.5; // 最小范围
70
71 scrollView.maximumZoomScale = 2; // 最大范围
72
73
74
75 // 设置缩放时是否弹动
76
77 scrollView.bouncesZoom = YES;
78
79
80
81 [self.view addSubview:scrollView];
82
83 [scrollView release];
84
85
86
87
88
89 UIImageView *imageView = [[UIImageView alloc] initWithFrame:CGRectMake(20, 20, 240, 400)];
90
91 imageView.image = [UIImage imageNamed:@"1.JPG"];
92
93 [scrollView addSubview:imageView];
94
95 [imageView release];
96
97
98
99 UIImageView *imageView0 = [[UIImageView alloc] initWithFrame:CGRectMake(300, 20, 240, 400)];
100
101 imageView0.image = [UIImage imageNamed:@"2.JPG"];
102
103 [scrollView addSubview:imageView0];
104
105 [imageView0 release];
106
107
108
109 UIImageView *imageView1 = [[UIImageView alloc] initWithFrame:CGRectMake(580, 20, 240, 400)];
110
111 imageView1.image = [UIImage imageNamed:@"3.JPG"];
112
113 [scrollView addSubview:imageView1];
114
115 [imageView1 release];
116
117
118
119 UIImageView *imageView2 = [[UIImageView alloc] initWithFrame:CGRectMake(580, 20, 240, 400)];
120
121 imageView2.image = [UIImage imageNamed:@"4.JPG"];
122
123 [scrollView addSubview:imageView2];
124
125 [imageView2 release];
126
127
128
129 UIImageView *imageView3 = [[UIImageView alloc] initWithFrame:CGRectMake(860, 20, 240, 400)];
130
131 imageView3.image = [UIImage imageNamed:@"5.JPG"];
132
133 [scrollView addSubview:imageView3];
134
135 [imageView3 release];
136
137
138
139 UIImageView *imageView4 = [[UIImageView alloc] initWithFrame:CGRectMake(1140, 20, 240, 400)];
140
141 imageView4.image = [UIImage imageNamed:@"6.JPG"];
142
143 [scrollView addSubview:imageView4];
144
145 [imageView4 release];
146
147
148
149 // UIImageView *imageView5 = [[UIImageView alloc] initWithFrame:CGRectMake(1420, 20, 240, 400)];
150
151 //
152
153 // [scrollView addSubview:imageView5];
154
155 // [imageView5 release];
156
157
158
159
160
161
162
163
164 UIPageControl *pageControl = [[UIPageControl alloc] initWithFrame:CGRectMake(20, 420, 280, 62)];
165
166 // pageControl.backgroundColor =[UIColor clearColor];
167
168
169
170 // 显示多少个点点
171
172 pageControl.numberOfPages = 5;
173
174 pageControl.currentPageIndicatorTintColor = [UIColor blackColor];
175
176
177
178 // 给pageControl加一个响应方法
179
180 [pageControl addTarget:self action:@selector(pageControlAction:)forControlEvents:UIControlEventValueChanged];
181
182
183
184 [self.view addSubview:pageControl];
185
186 [pageControl release];
187
188
189
190
191
192 // 方便在其他方法中调用pageControl
193
194 self.page = pageControl;
195
196 }
197
198
199 - (void)pageControlAction:(UIPageControl *)pageControl
200
201 {
202
203 NSLog(@"%d", pageControl.currentPage);
204
205 }
206
207 // 缩放：2. 设置一个视图 随着scrollView放大缩小
208
209 - (UIView *)viewForZoomingInScrollView:(UIScrollView *)scrollView
210
211 {
212
213 return [scrollView.subviews firstObject]; // 把第一个子视图随着scrollView缩放
214
215 }
216
217 // 3. 实现相对应的代理方法（协议方法）
218
219 - (void)scrollViewDidSroll:(UIScrollView *)scrollView
220
221 {
222
223 // // 只要srollView滚动 就会一直触发这个方法
224
225 // NSLog(@"%s", __FUNCTION__);
226
227 // // srollView 的偏移量变化
228
229 // NSLog(@"偏移量变化: %@", NSStringFromCGPoint(scrollView.contentOffset));
230
231 //
232
233 // // 判断scrollView当前的页数
234
235 // // 偏移量.x / srollView宽度
236
237 // int pageNumber = scrollView.contentOffset.x / scrollView.frame.size.width;
238
239 // NSLog(@"页数: %d", pageNumber);
240
241
242
243 // 当前scrollView滚动到当前页数
244
245 self.page.currentPage = scrollView.contentOffset.x / scrollView.frame.size.width;
246
247
248
249 }
250
251 // 开始拖拽的时候
252
253 - (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView
254
255 {
256
257 NSLog(@"开始拖拽:%s", __FUNCTION__);
258
259 }
260
261 // 结束拖拽的时候
262
263 - (void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate
264
265 {
266
267 NSLog(@"结束拖拽:%s", __FUNCTION__);
268
269 }
270
271 // 开始减速的时候
272
273 - (void)scrollViewWillBeginDecelerating:(UIScrollView *)scrollView
274
275 {
276
277 NSLog(@"开始减速:%s", __FUNCTION__);
278
279 }
280
281 // 结束减速的时候
282
283 - (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView
284
285 {
286
287 NSLog(@"结束减速:%s", __FUNCTION__);
288
289 }
