iOS开发之检查更新

iOS设备检查更新版本：

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#pragma mark - 检查更新 - ( void )checkUpdateWithAPPID:( NSString  *)APPID {      //获取当前应用版本号      NSDictionary  *appInfo = [[ NSBundle  mainBundle] infoDictionary];         NSString  *currentVersion = [appInfo objectForKey:@ "CFBundleVersion" ];            NSString  *updateUrlString = [ NSString  stringWithFormat:@ "http://itunes.apple.com/lookup?id=%@" ,APPID];      NSURL  *updateUrl = [ NSURL  URLWithString:updateUrlString];      versionRequest = [ASIFormDataRequest requestWithURL:updateUrl];      [versionRequest setRequestMethod:@ "GET" ];      [versionRequest setTimeOutSeconds:60];      [versionRequest addRequestHeader:@ "Content-Type"  value:@ "application/json" ];            //loading view      CustomAlertView *checkingAlertView = [[CustomAlertView alloc] initWithFrame:NAVIGATION_FRAME style:CustomAlertViewStyleDefault noticeText:@ "正在检查更新..." ];      checkingAlertView.userInteractionEnabled =  YES ;      [ self .navigationController.view addSubview:checkingAlertView];      [checkingAlertView release];            [versionRequest setCompletionBlock:^{                    [checkingAlertView removeFromSuperview];                    NSError  *error =  nil ;          NSDictionary  *dict = [ NSJSONSerialization  JSONObjectWithData:[versionRequest responseData] options: NSJSONReadingMutableContainers  error:&error];          if  (!error) {              if  (dict !=  nil ) {                  //            DLog(@"dict %@",dict);                  int  resultCount = [[dict objectForKey:@ "resultCount" ] integerValue];                  if  (resultCount == 1) {                      NSArray  *resultArray = [dict objectForKey:@ "results" ];                      //                DLog(@"version %@",[resultArray objectAtIndex:0]);                      NSDictionary  *resultDict = [resultArray objectAtIndex:0];                      //                DLog(@"version is %@",[resultDict objectForKey:@"version"]);                      NSString  *newVersion = [resultDict objectForKey:@ "version" ];                                            if  ([newVersion doubleValue] > [currentVersion doubleValue]) {                          NSString  *msg = [ NSString  stringWithFormat:@ "最新版本为%@,是否更新？" ,newVersion];                          newVersionURlString = [[resultDict objectForKey:@ "trackViewUrl" ]  copy ];                          DLog(@ "newVersionUrl is %@" ,newVersionURlString);                          //                    if ([newVersionURlString hasPrefix:@"https"]) {                          //                         [newVersionURlString replaceCharactersInRange:NSMakeRange(0, 5) withString:@"itms-apps"];                          //                    }                          UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@ "提示"  message:msg delegate: self  cancelButtonTitle:@ "暂不"  otherButtonTitles:@ "立即更新" ,  nil ];                          alertView.tag = 1000;                          [alertView show];                          [alertView release];                      } else                      {                          UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@ "提示"  message:@ "您使用的是最新版本！"  delegate: self  cancelButtonTitle: nil  otherButtonTitles:@ "确定" ,  nil ];                          alertView.tag = 1001;                          [alertView show];                          [alertView release];                      }                  }              }          } else          {              DLog( "error is %@" ,[error debugDescription]);          }      }];            [versionRequest setFailedBlock:^{          [checkingAlertView removeFromSuperview];                    CustomAlertView *alertView = [[CustomAlertView alloc] initWithFrame:NAVIGATION_FRAME style:CustomAlertViewStyleWarning noticeText:@ "操作失败，请稍候再试！" ];          [ self .navigationController.view addSubview:alertView];          [alertView release];          [alertView selfRemoveFromSuperviewAfterSeconds:1.0];      }];            [versionRequest startSynchronous];  }   - ( void )alertView:(UIAlertView *)alertView clickedButtonAtIndex:( NSInteger )buttonIndex {      DLog(@ "newVersionUrl  is %@" ,newVersionURlString);      if  (buttonIndex) {          if  (alertView.tag == 1000) {              if (newVersionURlString)              {                  [[UIApplication sharedApplication] openURL:[ NSURL  URLWithString:newVersionURlString]];              }          }      } }

 

来源：http://blog.youkuaiyun.com/heartofthesea/article/details/14127587

本文转自夏雪冬日博客园博客，原文链接：http://www.cnblogs.com/heyonggang/p/3539691.html，如需转载请自行联系原作者