相关代码展示：
#pragma mark - PSCollectionViewDelegate and DataSource methods
- (NSInteger)numberOfRowsInCollectionView:(PSCollectionView *)collectionView
{
return [_picArray count];
}
- (PSCollectionViewCell *)collectionView:(PSCollectionView *)collectionView cellForRowAtIndex:(NSInteger)index
{
NSDictionary *item = [_picArray objectAtIndex:index];
NeiHanPicCell *cell = (NeiHanPicCell *)[_collectionView dequeueReusableViewForClass:[NeiHanPicCell class]];
if (!cell) {
cell = [[NeiHanPicCell alloc] initWithFrame:CGRectZero];
}
[cell collectionView:_collectionView fillCellWithObject:item atIndex:index];
return cell;
}
- (CGFloat)collectionView:(PSCollectionView *)collectionView heightForRowAtIndex:(NSInteger)index
{
NSDictionary *item = [_picArray objectAtIndex:index];
return [NeiHanPicCell rowHeightForObject:item inColumnWidth:_collectionView.colWidth];
}
- (void)collectionView:(PSCollectionView *)collectionView didSelectCell:(PSCollectionViewCell *)cell atIndex:(NSInteger)index
{
NSDictionary *dict = [_picArray objectAtIndex:index];
QiuShiImageViewController *qiushiImageVC = [[QiuShiImageViewController alloc] initWithNibName:@"QiuShiImageViewController" bundle:nil];
[qiushiImageVC setQiuShiImageURL:[dict objectForKey:@"image0"]];
qiushiImageVC.modalTransitionStyle = UIModalTransitionStyleCrossDissolve;
[[UIApplication sharedApplication] setStatusBarHidden:YES withAnimation:UIStatusBarAnimationFade];
[self presentViewController:qiushiImageVC animated:YES completion:nil];
[qiushiImageVC release];
}
#pragma mark - UIScrollView delegate method
- (void)scrollViewDidScroll:(UIScrollView *)scrollView
{
[_refreshHeaderView egoRefreshScrollViewDidScroll:scrollView];
[_loadMoreFooterView loadMoreScrollViewDidScroll:scrollView];
}
- (void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate
{
[_refreshHeaderView egoRefreshScrollViewDidEndDragging:scrollView];
[_loadMoreFooterView loadMoreshScrollViewDidEndDragging:scrollView];
}
#pragma mark - EGORefreshTableHeaderDelegate methods
- (void)egoRefreshTableHeaderDidTriggerRefresh:(EGORefreshTableHeaderView *)view
{
_reloading = YES;
_requestType = RequestTypeNormal;
_currentPage = 0;
[self loadNeiHanPicDataSource];
}
- (BOOL)egoRefreshTableHeaderDataSourceIsLoading:(EGORefreshTableHeaderView *)view
{
return _reloading;
}
- (NSDate *)egoRefreshTableHeaderDataSourceLastUpdated:(EGORefreshTableHeaderView *)view
{
return [NSDate date];
}
#pragma mark - LoadMoreFooterView delegate method
- (void)loadMoreTableFooterDidTriggerRefresh:(LoadMoreFooterView *)view
{
_reloading = YES;
_requestType = RequestTypeLoadMore;
_currentPage++;
[self loadNeiHanPicDataSource];
}
#pragma mark - ASIHTTPRequest delegate methods
- (void)requestFinished:(ASIHTTPRequest *)request
{
JSONDecoder *jsonDecoder = [[JSONDecoder alloc] init];
NSDictionary *dic = [jsonDecoder objectWithData:[request responseData]];
// NSLog([request responseData]);
[jsonDecoder release];
if (_reloading) {
_reloading = NO;
[_refreshHeaderView egoRefreshScrollViewDataSourceDidFinishedLoading:_collectionView];
[_loadMoreFooterView loadMoreshScrollViewDataSourceDidFinishedLoading:_collectionView];
}
if (_requestType == RequestTypeNormal) {
[_picArray removeAllObjects];
}
[_picArray addObjectsFromArray:[dic objectForKey:@"list"]];
[self dataSourceDidLoad];
}
- (void)requestFailed:(ASIHTTPRequest *)request
{
[self dataSourceDidError];
if (_reloading) {
_reloading = NO;
[_refreshHeaderView egoRefreshScrollViewDataSourceDidFinishedLoading:_collectionView];
[_loadMoreFooterView loadMoreshScrollViewDataSourceDidFinishedLoading:_collectionView];
}
}
#pragma mark - ASIHTTPRequest method
- (void)initNeiHanPicRequestWithPage:(NSInteger)page
{
self.picRequest = [ASIHTTPRequest requestWithURL:[NSURL URLWithString:api_neihan_picture(page)]];
_picRequest.delegate = self;
[_picRequest startAsynchronous];
}
#pragma mark - UIAction method
- (IBAction)sideButtonClicked:(id)sender
{
[self sideButtonDidClicked];
}
原文：http://www.cnblogs.com/yulang314/p/3833182.html