iOS.訪問 Web Service.使用下拉重新整理控制項

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#import <UIKit/UIKit.h>#import "T20140628025702NSNumber+Message.h"#import "T20140628025702NSString+URLEncoding.h"@interface T20140628025702ViewController : UITableViewController@property (nonatomic,strong) NSMutableArray *listData;// 查詢所有-(void)findAll;@end

#import "T20140628025702ViewController.h"@interface T20140628025702ViewController ()@end@implementation T20140628025702ViewController- (void)viewDidLoad{    [super viewDidLoad];        // 1、初始化資料    [self findAll];        //初始化UIRefreshControl    UIRefreshControl *rc = [[UIRefreshControl alloc] init];    rc.attributedTitle = [[NSAttributedString alloc]initWithString:@"下拉重新整理01"];    [rc addTarget:self action:@selector(refreshTableView) forControlEvents:UIControlEventValueChanged];    self.refreshControl = rc;}-(void) refreshTableView{    if (self.refreshControl.refreshing) {        self.refreshControl.attributedTitle = [[NSAttributedString alloc]initWithString:@"載入中..."];                [self findAll];    }}- (void)didReceiveMemoryWarning{    [super didReceiveMemoryWarning];}#pragma mark table dataSource- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{    return self.listData.count;}- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{    // 1、初始化重用Cell    static NSString *reUseCell = @"reUseCell";    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:reUseCell];    if (cell == nil) {        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:reUseCell];    }        // 2、配置重用Cell資料    NSMutableDictionary*  dict = self.listData[indexPath.row];    cell.textLabel.text = [dict objectForKey:@"Content"];    cell.detailTextLabel.text = [dict objectForKey:@"CDate"];    return cell;}-(void)findAll{        NSString *strURL = [[NSString alloc] initWithFormat:@"http://127.0.0.1:8080/kujizu/test01.html"];    NSURL *url = [NSURL URLWithString:[strURL URLEncodedString]];    NSURLRequest *request = [[NSURLRequest alloc] initWithURL:url];    NSData *data  = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];        if (data == nil) {                self.listData = [[NSMutableArray alloc] init];        UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"錯誤資訊" message:@"沒有資料。" delegate:nil cancelButtonTitle:@"OK" otherButtonTitles: nil];        [alertView show];    }else{                NSDictionary *resDict = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingAllowFragments error:nil];                NSNumber *resultCodeObj = [resDict objectForKey:@"ResultCode"];        if ([resultCodeObj integerValue] >=0){                        self.listData = [resDict objectForKey:@"Record"];        } else {                        NSString *errorStr = [resultCodeObj errorMessage];            UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"錯誤資訊" message:errorStr delegate:nil cancelButtonTitle:@"OK" otherButtonTitles: nil];            [alertView show];        }    }    if (self.refreshControl) {        [self.refreshControl endRefreshing];        self.refreshControl.attributedTitle = [[NSAttributedString alloc]initWithString:@"下拉重新整理02"];    }}@end