#import "RootViewController.h"@interface RootViewController ()<UITableViewDataSource, UITableViewDelegate>@property (nonatomic, strong) UITableView     *tableView;
@property (nonatomic, strong) NSMutableArray  *dataSource;@end@implementation RootViewController- (void)viewDidLoad
{[super viewDidLoad];_dataSource = [[NSMutableArray alloc] init];for (int i = 0; i < 10; i++){[_dataSource addObject:[NSString stringWithFormat:@"%d", i]];}_tableView  = [[UITableView alloc] initWithFrame:self.view.boundsstyle:UITableViewStylePlain];_tableView.dataSource = self;_tableView.delegate   = self;[self.view addSubview:_tableView];
}- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{// 因为要定制最后一行,所以cell多一个return _dataSource.count + 1;
}- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{static NSString *reusedStr = @"demo";UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:reusedStr];if (cell == nil){cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefaultreuseIdentifier:reusedStr];}if([indexPath row] == ([_dataSource count])){// 定制最后一行的cellcell.textLabel.text=@"获取更多..";}else{// 定制普通行的cellcell.textLabel.text=[_dataSource objectAtIndex:[indexPath row]];}return cell;
}- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{// 如果是最后一行点击事件,则触发一个事件if (indexPath.row == ([_dataSource count])){[self performSelectorInBackground:@selector(loadMore)withObject:nil];[tableView deselectRowAtIndexPath:indexPath animated:YES];return;}
}- (void)loadMore
{// 添加数据源for (int i = 0; i < 10; i++) {[_dataSource addObject:[NSString stringWithFormat:@"新%d", i]];}// 重新加载tableView
    [_tableView reloadData];
}@end

#import <UIKit/UIKit.h>@interface RootViewController : UIViewController@end