iOSアプリのアップグレードの注意とAppStoreのジャンプ

今日はappアップグレードのヒントの流れを検討しましたが、簡単ではありません.シロたちが使えるように...

/**
 *     app            
 *
 *    PS：          
 *    trackCensoredName =     ;
 *    trackContentRating =   ;
 *    trackId =      ID;
 *    trackName =       ;
 *    trackViewUrl =         ;
 *    userRatingCount =     ;
 *    userRatingCountForCurrentVersion = 1;
 *    version =    ;
 */
-(void)judgeAPPVersion
{
    //       session  
    NSURLSession *session = [NSURLSession sharedSession];
    NSURL *url = [NSURL URLWithString:@"https://itunes.apple.com/lookup?id=1048992038"];
    //   URL   task, block                
    NSURLSessionTask *task = [session dataTaskWithURL:url
                                    completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
                                        NSLog(@"%@", [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:nil]);
                                        
                                        NSError *errorJs;
                                        id jsonObject = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingAllowFragments error:&errorJs];
                                        NSDictionary *appInfo = (NSDictionary *)jsonObject;
                                        NSArray *infoContent = [appInfo objectForKey:@"results"];
                                        NSString *version = [[infoContent objectAtIndex:0] objectForKey:@"version"];
                                        
                                        NSLog(@"       %@",version);

                                        NSString *skipUrl = [[infoContent objectAtIndex:0] objectForKey:@"trackViewUrl"];
                                        
                                        NSDictionary *infoDic = [[NSBundle mainBundle] infoDictionary];
                                        NSString *currentVersion = [infoDic objectForKey:@"CFBundleShortVersionString"];
                                        NSLog(@"       %@",currentVersion);
                                        
                                        if (![version isEqualToString:currentVersion]) {
                                            //   appstore
                                            [self skipAppStore:skipUrl];
                                        }
                                        
                                    }];
    
    //     
    [task resume];
}

- (void)skipAppStore:(NSString*)strSkipUrl{
    //    
    UIAlertController *alertDialog = [UIAlertController alertControllerWithTitle:@"       " message:nil preferredStyle:UIAlertControllerStyleAlert];
    
    //       
    UIAlertAction *laterAction = [UIAlertAction actionWithTitle:@"  " style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {
        // App   
        [[UIApplication sharedApplication] openURL:[NSURL URLWithString:strSkipUrl]];
    }];

    UIAlertAction *okAction = [UIAlertAction actionWithTitle:@"  " style:UIAlertActionStyleCancel handler:^(UIAlertAction *action) {
        //     
        
    }];
    
    //     （           ）
    [alertDialog addAction:laterAction];
    [alertDialog addAction:okAction];
    
    //       
    [self presentViewController:alertDialog animated:YES completion:nil];
}