附上链接:https://github.com/cuzv/PhotoBrowser
最近在做一个项目,里面有一个图片浏览,类似于新浪微博里面图片浏览的效果,后来在gitHub上面找到了一个框架,很好用,在gitHub里面,可以看到how to use 第一句话就是,这个图片浏览器类似于UITableView的API,要想使用这些个方法,还要遵循photoBrowser的两个代理,下面说
使用这个框架,要在你的项目里面
1: 导入PBViewController.h文件
2:遵循代理<<span style="color: rgb(51, 51, 51); font-family: Consolas, 'Liberation Mono', Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.0392157);">PBViewControllerDataSour
ce,
PBViewControllerDelegate
>
3:设置代理
4:实现代理方法
本次记录的是和collectionView以及SDWebImage一起使用的效果
#import "ViewController.h"
#import "LXCollectionViewCell.h"
#import
#import
@interface ViewController ()<</span>UICollectionViewDelegate,UICollectionViewDataSource,PBViewControllerDataSource,PBViewControllerDelegate>
@property (nonatomic,strong)NSArray *urls;
@end
@implementation ViewController
- (NSArray *)urls{
if (_urls == nil) {
//随便找的图片的url
_urls = @[
[NSURL URLWithString:@"http://gbres.dfcfw.com/Files/picture/20160426/size500/6A27C28C515123992DC829C0142A7752.jpg"],
[NSURL URLWithString:@"http://img.taopic.com/uploads/allimg/120423/107913-12042323220753.jpg"],
[NSURL URLWithString:@"http://g.hiphotos.baidu.com/image/pic/item/03087bf40ad162d9ec74553b14dfa9ec8a13cd7a.jpg"],
[NSURL URLWithString:@"http://g.hiphotos.baidu.com/image/pic/item/8c1001e93901213fcea979fb51e736d12f2e957a.jpg"],
[NSURL URLWithString:@"http://a.hiphotos.baidu.com/image/pic/item/4b90f603738da97739bab10cb551f8198618e37b.jpg"]
];
}
return _urls;
}
- (void)viewDidLoad {
[super viewDidLoad];
//利用xib注册一个cell
[self.collectionView registerNib:[UINib nibWithNibName:@"LXCollectionViewCell" bundle:nil] forCellWithReuseIdentifier:@"lx"];
}
#pragma mark - dataSource 这些事collectionView的代理方法
- (NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView{
return 1;
}
- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section{
return self.urls.count;
}
- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath
{
//LXcollectionViewCell是自定义的cell,里面包含着一个imageview
LXCollectionViewCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:@"lx" forIndexPath:indexPath];
if (cell == nil) {
cell = [[LXCollectionViewCell alloc]init];
}
[cell.imageviewCell sd_setImageWithURL:self.urls[indexPath.item]];
return cell;
}
- (void)collectionView:(UICollectionView *)collectionView didDeselectItemAtIndexPath:(NSIndexPath *)indexPath{
PBViewController *pbViewController = [[PBViewController alloc]init];
pbViewController.pb_dataSource = self;
pbViewController.pb_delegate = self;
[pbViewController setInitializePageIndex:indexPath.item];
[self presentViewController:pbViewController animated:YES completion:nil];
}
#pragma mark - PBViewControllerDataSource
//这个代理方法,返回的是图片浏览器里面有几个图片
- (NSInteger)numberOfPagesInViewController:(PBViewController *)viewController {
return self.urls.count;
}
//在这儿给图片浏览器里面的iamgeview赋值,此处采用了和SDWebImage合用
- (void)viewController:(PBViewController *)viewController presentImageView:(UIImageView *)imageView forPageAtIndex:(NSInteger)index {
//这里给图片浏览器赋值图片用SDWebImage来赋值
[imageView sd_setImageWithURL:self.urls[index]];
}
#pragma mark - PBViewControllerDelegate
//故名思议,这儿是一次点击调用的图片
- (void)viewController:(PBViewController *)viewController didSingleTapedPageAtIndex:(NSInteger)index presentedImage:(UIImage *)presentedImage {
[viewController.presentingViewController dismissViewControllerAnimated:YES completion:nil];
}
//这个是长按调用的方法
- (void)viewController:(PBViewController *)viewController didLongPressedPageAtIndex:(NSInteger)index presentedImage:(UIImage *)presentedImage {
NSLog(@"点击了");
}
@end
