和上文一样,也是一个简单的根视图控制器直接加载.其中的数组模仿了真实的数据加载.直接把数组更改为数据库拿去数据即可,其中涉及到主要就是新开了一个线程,本文主要解释了以下实现的原理,如果涉及到从网络获取数据的问题,看懂本文之后请自行百度,估计就可以看懂了.
以下为.h文件
#import <UIKit/UIKit.h> @interface RootViewController : UITableViewController @property (retain,nonatomic) NSMutableArray *arr; @end以下为.m文件
#import "RootViewController.h" @interface RootViewController () @end @implementation RootViewController - (id)initWithStyle:(UITableViewStyle)style { self = [super initWithStyle:style]; if (self) { self.arr = [[NSMutableArray alloc] initWithCapacity:5]; [self.arr addObject:@"123"]; [self.arr addObject:@"123"]; [self.arr addObject:@"123"]; [self.arr addObject:@"123"]; [self.arr addObject:@"123"]; [self.arr addObject:@"123"]; } return self; } - (void)viewWillAppear:(BOOL)animated { } - (void)viewDidLoad { [super viewDidLoad]; self.refreshControl = [[UIRefreshControl alloc] init]; self.refreshControl.attributedTitle = [[NSAttributedString alloc] initWithString:@"谁离了谁累死了当拉拉队"]; [self.refreshControl addTarget:self action:@selector(a) forControlEvents:UIControlEventValueChanged]; } - (void)a { NSLog(@"1234"); [self performSelector:@selector(handleData) withObject:nil afterDelay:2]; } - (void)handleData { [self.refreshControl endRefreshing]; NSLog(@"nidaye"); [self.arr addObject:@"123"]; [self.tableView reloadData]; } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated. } #pragma mark - Table view data source - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView { // Return the number of sections. return 1; } - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { // Return the number of rows in the section. return [self.arr count]; } - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *CellIdentifier = @"Cell"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier]autorelease]; } cell.textLabel.text = [NSString stringWithFormat:@"%d",[self.arr count]-indexPath.row]; NSLog(@"这说明正在复用"); return cell; } @end