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2019-04-15 17:25发布

站内文章 / PIC单片机
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Model.h @property(nonatomic,strong)NSString *pic; @property(nonatomic,strong)NSString *title; @property(nonatomic,strong)NSString *url; LoadData.h #import typedef void(^PassDataBlock)(NSMutableArray *arr); @interface FirstLoadData : NSObject + (instancetype)shareLoadData; - (void)getData:(PassDataBlock )block; @end .m #import "FirstModel.h" #import static FirstLoadData *ld; @implementation FirstLoadData + (instancetype)shareLoadData { if (!ld) { ld = [[FirstLoadData alloc]init]; } return ld; } - (void)getData:(PassDataBlock )block { NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"http://api.jisuapi.com/news/get"]]; request.HTTPMethod = @"POST"; NSString *str = [NSString stringWithFormat:@"channel=%@&start =%d&num=%d&appkey=%@",@"头条",0,20,@"c3b84a436b060866"]; NSData *bodyData = [str dataUsingEncoding:NSUTF8StringEncoding]; request.HTTPBody = bodyData; NSURLSession *session = [NSURLSession sharedSession]; NSURLSessionDataTask *task = [session dataTaskWithRequest:request completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) { NSDictionary *dic = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableLeaves error:nil]; NSDictionary *dict = [dic objectForKey:@"result"]; NSArray *arr = [dict objectForKey:@"list"]; NSMutableArray *mArr = [NSMutableArray array]; for (NSDictionary *dictionary in arr) { // FirstModel *m = [[FirstModel alloc]init]; // m.title = dictionary[@"title"]; // m.pic = dictionary[@"pic"]; // m.url = dictionary[@"url"]; FirstModel *yaowen = [FirstModel yy_modelWithDictionary:dictionary]; [mArr addObject:yaowen]; NSLog(@"%@",mArr); } dispatch_async(dispatch_get_main_queue(), ^{ block(mArr); }); }]; [task resume]; } @end UIViewController.m #import "FirstViewController.h" #import "ImageScrollView.h" #import "TableViewCell.h" #import "FirstLoadData.h" #import "FirstModel.h" #import "UIImageView+WebCache.h" #import "NextViewController.h" @interface FirstViewController () { NSMutableArray *marr; MJRefreshNormalHeader *_header; } @property(nonatomic,strong)UITableView *tableView;; @end @implementation FirstViewController -(UITableView *)tableView{ if (!_tableView) { _tableView = [[UITableView alloc]initWithFrame:CGRectMake(0, FIT_Y(260), self.view.frame.size.width,SCREEN_H-FIT_Y(230)) style:UITableViewStylePlain]; _tableView.delegate = self; _tableView.dataSource = self; _tableView.rowHeight = 290; _tableView.backgroundColor = [UIColor clearColor]; } return _tableView; } - (void)ShuaXin { // 设置回调（一旦进入刷新状态，就调用target的action，也就是调用self的loadNewData方法） _header = [MJRefreshNormalHeader headerWithRefreshingTarget:self refreshingAction:@selector(loadNewData)]; // 设置自动切换透明度(在导航栏下面自动隐藏) _header.automaticallyChangeAlpha = YES; // 隐藏时间 _header.lastUpdatedTimeLabel.hidden = YES; // 设置header self.tableView.mj_header = _header; } - (void)loadNewData { [self viewWillAppear:YES]; [self.tableView reloadData]; [_header endRefreshing]; } - (void)viewDidLoad { [super viewDidLoad]; [self.view addSubview:self.tableView]; [self ShuaXin]; [[FirstLoadData shareLoadData]getData:^(NSMutableArray *arr) { marr = arr; [_tableView reloadData]; }]; } #pragma mark ---UITableViewDataSource - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{ return marr.count; } - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{ static NSString *iden = @"cell"; TableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:iden]; if (cell == nil) { cell = [[TableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:iden]; } FirstModel *m = marr[indexPath.row]; cell.title.text = m.title; [cell.image sd_setImageWithURL:[NSURL URLWithString:m.pic] placeholderImage:[UIImage imageNamed:@"103.jpg"] completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, NSURL *imageURL) { }]; return cell; } - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { FirstModel *m = marr[indexPath.row]; NextViewController *dvc = [[NextViewController alloc]init]; dvc.weburl = m.url; [self.navigationController pushViewController:dvc animated:YES]; } @end

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