UI 运用滚动视图创建相册的方法

Posted 2020-07-21

  1 #import "mainViewController.h"
  2 
  3 
  4 @interface mainViewController ()
  5 
  6 
  7 @end
  8 
  9 
 10 @implementation mainViewController
 11 
 12 
 13 - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
 14 
 15 {
 16 
 17     self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
 18 
 19     if (self) {
 20 
 21         // Custom initialization
 22 
 23     }
 24 
 25     return self;
 26 
 27 }
 28 
 29 
 30 - (void)viewDidLoad
 31 
 32 {
 33 
 34     [super viewDidLoad];
 35 
 36     // Do any additional setup after loading the view.
 37 
 38    //总的
 39 
 40     UIScrollView *scrollView = [[UIScrollView alloc] initWithFrame:CGRectMake(20, 20, 280, 450)];
 41 
 42     scrollView.backgroundColor = [UIColor redColor];
 43 
 44     scrollView.tag = 1000;
 45 
 46     scrollView.contentSize = CGSizeMake(1400, 0);
 47 
 48     scrollView.scrollEnabled = YES;
 49 
 50     scrollView.pagingEnabled = YES;
 51 
 52     //第一个
 53 
 54     UIScrollView *scrollView1 = [[UIScrollView alloc] initWithFrame:CGRectMake(20, 20, 240, 450)];
 55 
 56     scrollView1.contentSize = CGSizeMake(240, 0);
 57 
 58     scrollView1.tag = 111;
 59 
 60     UIImageView *image0 = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 240, 400)];
 61 
 62     image0.image = [UIImage imageNamed:@"1.JPG"];
 63 
 64     [scrollView1 addSubview:image0];
 65 
 66     [image0 release];
 67 
 68     scrollView1.delegate = self;
 69 
 70     scrollView1.minimumZoomScale = 0.5;
 71 
 72     scrollView1.maximumZoomScale = 2;
 73 
 74     [scrollView addSubview:scrollView1];
 75 
 76     [scrollView1 release];
 77 
 78     //第二个
 79 
 80     UIScrollView *scrollView2 = [[UIScrollView alloc] initWithFrame:CGRectMake(300, 20, 240, 450)];
 81 
 82     scrollView2.contentSize = CGSizeMake(280, 0);
 83 
 84     scrollView2.tag = 222;
 85 
 86     UIImageView *image1 = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 240, 400)];
 87 
 88     image1.image = [UIImage imageNamed:@"2.JPG"];
 89 
 90     [scrollView2 addSubview:image1];
 91 
 92     [image1 release];
 93 
 94     
 95 
 96     scrollView2.delegate = self;
 97 
 98     scrollView2.minimumZoomScale = 0.5;
 99 
100     scrollView2.maximumZoomScale = 2;
101 
102     [scrollView addSubview:scrollView2];
103 
104     [scrollView2 release];
105 
106     //第三个
107 
108     UIScrollView *scrollView3 = [[UIScrollView alloc] initWithFrame:CGRectMake(580, 20, 240, 450)];
109 
110     scrollView3.contentSize = CGSizeMake(280, 0);
111 
112     scrollView3.tag = 333;
113 
114     UIImageView *image2 = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 240, 400)];
115 
116     image2.image = [UIImage imageNamed:@"3.JPG"];
117 
118     [scrollView3 addSubview:image2];
119 
120     [image2 release];
121 
122 
123     scrollView3.delegate = self;
124 
125     scrollView3.minimumZoomScale = 0.5;
126 
127     scrollView3.maximumZoomScale = 2;
128 
129     [scrollView addSubview:scrollView3];
130 
131     [scrollView3 release];
132 
133     //第四个
134 
135     UIScrollView *scrollView4 = [[UIScrollView alloc] initWithFrame:CGRectMake(860, 20, 240, 450)];
136 
137     scrollView4.contentSize = CGSizeMake(280, 0);
138 
139     scrollView4.tag = 444;
140 
141     UIImageView *image3 = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 240, 400)];
142 
143     image3.image = [UIImage imageNamed:@"4.JPG"];
144 
145     [scrollView4 addSubview:image3];
146 
147     [image3 release];
148 
149     scrollView4.delegate = self;
150 
151     scrollView4.minimumZoomScale = 0.5;
152 
153     scrollView4.maximumZoomScale = 2;
154 
155     [scrollView addSubview:scrollView4];
156 
157     [scrollView4 release];
158 
159     //第五个
160 
161     UIScrollView *scrollView5 = [[UIScrollView alloc] initWithFrame:CGRectMake(1140, 20, 240, 450)];
162 
163     scrollView5.contentSize = CGSizeMake(280, 0);
164 
165     scrollView5.tag = 555;
166 
167     UIImageView *image4 = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 240, 400)];
168 
169     image4.image = [UIImage imageNamed:@"5.JPG"];
170 
171     [scrollView5 addSubview:image4];
172 
173     [image4 release];
174 
175     scrollView5.delegate = self;
176 
177     scrollView5.minimumZoomScale = 0.5;
178 
179     scrollView5.maximumZoomScale = 2;
180 
181     [scrollView addSubview:scrollView5];
182 
183     [scrollView5 release];
184 
185 
186     scrollView.delegate = self;
187 
188     [self.view addSubview:scrollView];
189 
190     [scrollView release];
191 
192     
193 
194     UIPageControl *pageControl = [[UIPageControl alloc] initWithFrame:CGRectMake(110, 400, 100,30)];
195 
196     pageControl.numberOfPages = 5;
197 
198     pageControl.pageIndicatorTintColor = [UIColor blackColor];
199 
200     pageControl.currentPageIndicatorTintColor = [UIColor whiteColor];
201 
202     [pageControl addTarget:self action:@selector(pageControlAction:)forControlEvents:UIControlEventValueChanged];
203 
204     [self.view addSubview:pageControl];
205 
206     [pageControl release];
207 
208     
209 
210     self.page = pageControl;
211 
212     
213 
214     
215 
216 }
217 
218 - (void)pageControlAction:(UIPageControl *)pageControl
219 
220 {
221 
222     UIScrollView *scrollView = (UIScrollView *) [self.view viewWithTag:1000];
223 
224     scrollView.contentOffset = CGPointMake(280 * self.page.currentPage, 0);
225 
226     for (int i = 1; i < 6; i++) {
227 
228         UIScrollView *scrollView = (UIScrollView *) [self.view viewWithTag:111 * i];
229 
230         scrollView.zoomScale = 1;
231 
232     }
233 
234 }
235 
236 - (void)scrollViewDidScroll:(UIScrollView *)scrollView
237 
238 {
239 
240     self.page.currentPage = scrollView.contentOffset.x / scrollView.frame.size.width;
241 
242 }
243 
244 
245 - (UIView *)viewForZoomingInScrollView:(UIScrollView *)scrollView
246 
247 {
248 
249     return [scrollView.subviews firstObject];
250 
251 }
252 
253 
254 - (void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate
255 
256 {
257 
258     for (int i = 1; i < 6; i ++) {
259 
260         UIScrollView *scrollView = (UIScrollView *) [self.view viewWithTag:111 * i];
261 
262         scrollView.zoomScale = 1;
263 
264     }
265 
266 }
267 
268 
269 - (void)didReceiveMemoryWarning
270 
271 {
272 
273     [super didReceiveMemoryWarning];
274 
275     // Dispose of any resources that can be recreated.
276 
277 }
278 
279 
280 /*
281 
282 #pragma mark - Navigation
283 
284 
285 // In a storyboard-based application, you will often want to do a little preparation before navigation
286 
287 - (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
288 
289 {
290 
291     // Get the new view controller using [segue destinationViewController].
292 
293     // Pass the selected object to the new view controller.
294 
295 }
296 
297 */
298 
299 
300 @end