版本更新提示

-(void)reloadVersion{
    ////获取本地版本信息
    NSDictionary *infoDictionary = [[NSBundle mainBundle] infoDictionary];
    NSString *app_Version = [infoDictionary objectForKey:@"CFBundleShortVersionString"];
    NSArray * array1 = [app_Version componentsSeparatedByString:@"."];
    NSInteger currentVersionInt = 0;
    NSString * releaseNotes = @"更新";//更新说明
    NSString *AppID =@"1468604217";
    if (array1.count == 3)//默认版本号1.0.0类型
    {
        currentVersionInt = [array1[0] integerValue]*100 + [array1[1] integerValue]*10 + [array1[2] integerValue];
    }
    //获取后台版本信息
    NSString *url = [NSString stringWithFormat:@"%@%@",Server,@"/app/version.json"];
    AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
    [manager GET:url parameters:nil progress:nil success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {
        NSLog(@"version%@ ---%@",app_Version, responseObject);
    if ([[responseObject objectForKey:@"android_agent"] integerValue]>currentVersionInt) {
        UIAlertController * alert = [UIAlertController alertControllerWithTitle:@"发现新版本"message:releaseNotes preferredStyle:UIAlertControllerStyleAlert];
        UIAlertAction * ok = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleDefault handler:nil];
        UIAlertAction * update = [UIAlertAction actionWithTitle:@"去更新" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
            //跳转到App Store
            NSString *urlStr = [NSString stringWithFormat:@"itms-apps://itunes.apple.com/cn/app/id%@?mt=8",AppID];
            [[UIApplication sharedApplication] openURL:[NSURL URLWithString:urlStr]];
        }];
        [alert addAction:ok];
        [alert addAction:update];
        [[AppDelegate sharedAppDelegate].topViewController presentViewController:alert animated:YES completion:nil];
         }
    } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
        NSLog(@"%@",error);
    }];

}