使用第三方库MJRefresh上下刷新

1.//刷新数据

#import "MJRefresh.h"

- (void)viewDidLoad {

mainView.header = [MJRefreshNormalHeader
headerWithRefreshingBlock:^{

[self
performSelector:@selector(refreshData)
withObject:nil
afterDelay:3];

}];

mainView.footer = [MJRefreshAutoNormalFooter
footerWithRefreshingBlock:^{

}];

}

2.

-(void)refreshData

{

DeviceListLogic *logic = [[DeviceListLogic
alloc]
init];

[logic requestWithSuccess:^{

[mainView
reloadData];

[mainView.header
endRefreshing];

}];

}