使用它的Block方法

使用它的Block方法

MJRefresh实现刷新(使用它的Block方法)

 
//
// YFMVCPostListViewController.m
// iOS122
//
// Created by 颜风 on 15/10/14.
// Copyright (c) 2015年 iOS122. All rights reserved.
// #import "YFMVCPostListViewController.h"
#import "YFArticleModel.h"
#import <AFNetworking.h>
#import <MJRefresh.h>
#import <MBProgressHUD.h>
#import "YFMVCPostViewController.h" @interface YFMVCPostListViewController ()<UITableViewDelegate, UITableViewDataSource>
@property (nonatomic, strong) UITableView * tableView;
@property (nonatomic, strong) NSMutableArray * articles; //!< 文章数组,内部存储AFArticleModel类型.
@property (assign, nonatomic) NSInteger page; //!< 数据页数.表示下次请求第几页的数据. @end @implementation YFMVCPostListViewController - (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view.
} - (NSMutableArray *)articles
{
if (nil == _articles) {
_articles = [NSMutableArray arrayWithCapacity: 42];
} return _articles;
} - (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
} - (void)viewWillAppear:(BOOL)animated
{
[super viewWillAppear: animated]; // 马上进入刷新状态
[self.tableView.header beginRefreshing];
} - (UITableView *)tableView
{
if (nil == _tableView) {
_tableView = [[UITableView alloc] init]; [self.view addSubview: _tableView]; [_tableView makeConstraints:^(MASConstraintMaker *make) {
make.edges.equalTo(UIEdgeInsetsMake(0, 0, 0, 0));
}]; _tableView.delegate = self;
_tableView.dataSource = self; NSString * cellReuseIdentifier = NSStringFromClass([UITableViewCell class]); [_tableView registerClass: NSClassFromString(cellReuseIdentifier) forCellReuseIdentifier:cellReuseIdentifier]; _tableView.header = [MJRefreshNormalHeader headerWithRefreshingBlock:^{
self.page = 0; [self updateData];
}]; _tableView.footer = [MJRefreshBackNormalFooter footerWithRefreshingBlock:^{
[self updateData];
}]; } return _tableView;
} /**
* 更新视图.
*/
- (void) updateView
{
[self.tableView reloadData];
}
/**
* 停止刷新
*/
-(void)endRefresh{
[self.tableView.header endRefreshing];
[self.tableView.footer endRefreshing];
}
/**
* 更新数据.
*
* 数据更新后,会自动更新视图.
*/ - (void)updateData
{
AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager]; NSString * urlStr = [NSString stringWithFormat: @"http://www.ios122.com/find_php/index.php?viewController=YFPostListViewController&model[category]=%@&model[page]=%ld", self.categoryName, (long)self.page ++]; [manager GET: urlStr parameters:nil success:^(AFHTTPRequestOperation *operation, id responseObject) { [self endRefresh]; if (1 == self.page) { // 说明是在重新请求数据.
self.articles = nil;
} NSArray * responseArticles = [YFArticleModel objectArrayWithKeyValuesArray: responseObject]; [self.articles addObjectsFromArray: responseArticles]; [self updateView];
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
[self endRefresh]; MBProgressHUD *hud = [MBProgressHUD showHUDAddedTo:self.view animated:YES];
hud.mode = MBProgressHUDModeText;
hud.labelText = @"您的网络不给力!";
[hud hide: YES afterDelay: 2]; }];
} # pragma mark - tabelView代理方法. - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
NSInteger number = self.articles.count; return number;
} - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
NSString * cellReuseIdentifier = NSStringFromClass([UITableViewCell class]); UITableViewCell * cell = [tableView dequeueReusableCellWithIdentifier: cellReuseIdentifier forIndexPath:indexPath]; YFArticleModel * model = self.articles[indexPath.row]; NSString * content = [NSString stringWithFormat: @"标题:%@ 内容:%@", model.title, model.desc]; cell.textLabel.text = content; cell.selectionStyle = UITableViewCellSelectionStyleNone; return cell;
} - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
// 跳转到博客详情.
YFArticleModel * articleModel = self.articles[indexPath.row]; YFMVCPostViewController * postVC = [[YFMVCPostViewController alloc] init]; postVC.articleID = articleModel.id; [self.navigationController pushViewController: postVC animated: YES];
} @end
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