uitableview

UIRefreshControl *refresh = [[UIRefreshControl alloc]init];
refresh.attributedTitle = [[NSAttributedString alloc]initWithString:@"刷新"];
[refresh addTarget:self action:@selector(refreshAction) forControlEvents:UIControlEventValueChanged];
self.refreshControl = refresh;

-(void)refreshAction
{
    if (self.refreshControl.isRefreshing){
        self.refreshControl.attributedTitle = [[NSAttributedString alloc]initWithString:@"加载中..."];
        
        [self.refreshControl endRefreshing];
    }
}

tableView.allowsSelection=NO;

[tableView scrollToRowAtIndexPath:indexPath atScrollPosition:UITableViewScrollPositionBottom animated:YES];

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
    return 1;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    return tableViewData.count;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
   
    static NSString *iden = @"xxxxx";
    UITableViewCell *cell = [self.tableView dequeueReusableCellWithIdentifier:iden];
    if (cell==nil) {
        cell=[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:iden];
    }
    
    // do something
    
    return cell;
}