ios检测新版本并更新

//检查版本更新

／／APPLEID 是提交到appstore的应用id

-(void)onCheckVersion

{

  //获取本地版本号

    NSDictionary *infoDic = [[NSBundlemainBundle]infoDictionary];

    NSString *currentVersion = [infoDicobjectForKey:@"CFBundleVersion"];  

 

    NSString * URL = [NSStringstringWithFormat:@"http://itunes.apple.com/cn/lookup?id=%@",APPLEID];   ／／请求itunes.apple应用版本信息，

    NSMutableURLRequest *request = [[NSMutableURLRequestalloc]init];

    [requestsetURL:[NSURLURLWithString:URL]];

    [requestsetHTTPMethod:@"POST"];

   NSHTTPURLResponse *urlResponse =nil;

   NSError *error =nil;

   NSData *recervedData = [NSURLConnectionsendSynchronousRequest:requestreturningResponse:&urlResponseerror:&error];

   NSDictionary *dic = [NSJSONSerializationJSONObject WithData:recervedData options:kNilOptionserror:&error];   //取回的数据是json格式，必须进行解析

   NSArray *infoArray = [dicobjectForKey:@"results"];

   if ([infoArraycount]) {

       NSDictionary *releaseInfo = [infoArrayobjectAtIndex:0];

       NSString *lastVersion = [releaseInfoobjectForKey:@"version"];  ／／获取到最新版本号

        ／／如果applestore最新版本号和本地版本不同，提醒用户更新

       if (![lastVersionisEqualToString:currentVersion]) {

            //trackViewURL = [releaseInfo objectForKey:@"trackVireUrl"];

            UIAlertView *alert = [[UIAlertViewalloc]initWithTitle:@"更新"message:@"有新的版本更新，是否前往更新？"delegate:selfcancelButtonTitle:@"暂不更新"otherButtonTitles:@"更新",nil];

            alert.tag =10000;

            [alertshow];

        }

／／如果相同，提醒用户已是最新版本

       else

        {

            UIAlertView *alert = [[UIAlertViewalloc]initWithTitle:@"更新"message:@"此版本为最新版本"delegate:nilcancelButtonTitle:@"确定"otherButtonTitles:nil,nil];

            [alertshow];

        }

    }

    }

}

//alart回调方法

-(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{

    //去appstore进行下载

   elseif (alertView.tag ==10000){

       if (buttonIndex==1) {

            NSURL *url = [NSURLURLWithString:[NSStringstringWithFormat:@"https://itunes.apple.com/cn/app/wifi-xiao-guan-jia/id%@",APPLEID]];       ／／拼接下载地址字符串

            [[UIApplicationsharedApplication]openURL:url];   ／／打开app所在网页

        }

    }

}