#import "UIScrollView+AH3DPullRefresh.h"

#pragma mark 下拉刷新和上拉加载更多
-(void)addPullRefreshAndPullLoadMore{[_tableView setPullToRefreshHandler:^{//从第一行数据开始下载 _offset = 1; [self startDownloadData]; }]; [_tableView setPullToLoadMoreHandler:^{ _offset += _pageSize; [self startDownloadData]; }]; }

//如果_offset = 1，重新刷新if (_offset == 1) {[_dataArray removeAllObjects];}

 //结束刷新
    [_tableView refreshFinished];[_tableView loadMoreFinished];[_tableView reloadData];

-(void)startDownloadData
{NSString *urlStr = [NSString stringWithFormat:MAIN_SHOP_URL,_city,_categotry,_offset,_pageSize];_reauest = [[HttpRequest alloc]init];[_reauest requestWithUrl:urlStr targe:self action:@selector(dealDownloadFinish:)];
}-(void)dealDownloadFinish:(HttpRequest *)request{ NSString *str = [[NSString alloc]initWithData:request.data encoding:NSUTF8StringEncoding]; NSLog(@"%@",str); GDataXMLDocument *doc = [[GDataXMLDocument alloc]initWithData:request.data options:0 error:nil]; NSArray *list = [doc nodesForXPath:@"//promotion" error:nil]; //如果_offset = 1，重新刷新 if (_offset == 1) { [_dataArray removeAllObjects]; } for (GDataXMLElement *promotion in list) { PromotionModel *model = [[PromotionModel alloc]init]; model.myid = [[[promotion elementsForName:@"id"] firstObject] stringValue]; model.name = [[[promotion elementsForName:@"name"] firstObject] stringValue]; [_dataArray addObject:model]; } //结束刷新  [_tableView refreshFinished]; [_tableView loadMoreFinished]; [_tableView reloadData]; }