项目必须要做这个，自己顺便记录一下

#pragma mark - 判断是否需要提示更新App- (void)updateVersion:(NSString *)path {    // 获取本地版本号    NSString *currentVersion = [NSBundle mainBundle].infoDictionary[@"CFBundleShortVersionString"];    // 取得AppStore信息    AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];    manager.responseSerializer = [AFHTTPResponseSerializer serializer];    manager.requestSerializer = [AFJSONRequestSerializer serializer];    [manager.responseSerializer setAcceptableContentTypes:[NSSet setWithObjects:@"application/json", @"text/json", @"text/javascript",@"text/html", nil]];        [manager GET:path parameters:nil progress:nil success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {        NSLog(@"responseObject --- %@", responseObject);                NSData *dataCast = responseObject;        NSString *dataString = [[NSString alloc] initWithData:dataCast encoding:NSUTF8StringEncoding];        NSData *data =[dataString dataUsingEncoding:NSUTF8StringEncoding];        id json = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:nil];                NSArray *array = json[@"results"];                // app store 最新版本号        NSString *newVersion;        for (NSDictionary *dic in array) {            newVersion = [dic valueForKey:@"version"];        }                // 取更新日志信息        NSString *changeStr;        for (NSDictionary *dic in array) {            changeStr = [dic valueForKey:@"releaseNotes"];        }                // app store 跳转版本链接        NSString *trackViewUrl;        for (NSDictionary *dic in array) {            trackViewUrl = [dic valueForKey:@"trackViewUrl"];        }                NSLog(@"app store 的更新信息 --- %@, app store 的最新版本号 --- %@, 跳转版本链接 --- %@", changeStr, currentVersion, trackViewUrl);                NSInteger index = [self versionCompareFirst:newVersion andVersionSecond:currentVersion];                // AppStore版本号大于当前版本号，强制更新        if ([self versionCompareFirst:newVersion andVersionSecond:currentVersion] == 0) {            // 弹窗 更新            NSLog(@"");            [UIApplication sharedApplication].statusBarStyle = UIStatusBarStyleDefault;            UIAlertController *alertController=[UIAlertController alertControllerWithTitle:@"发现新版本" message:[NSString stringWithFormat:@"新版本%@急需更新",newVersion] preferredStyle:UIAlertControllerStyleAlert];            UIAlertAction *sureAction=[UIAlertAction actionWithTitle:@"去更新" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {                NSLog(@"");                [[UIApplication sharedApplication] openURL:[NSURL URLWithString:trackViewUrl]];            }];            [alertController addAction:sureAction];                        UIWindow   *alertWindow = [[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds];            alertWindow.rootViewController = [[UIViewController alloc] init];            alertWindow.windowLevel = UIWindowLevelAlert + 1;            [alertWindow makeKeyAndVisible];            [alertWindow.rootViewController presentViewController:alertController animated:YES completion:nil];                    } else {            // 正常进入程序            [self loadRootVC];        }                NSLog(@"");            } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {        // 网络异常时，正常进入程序        NSLog(@"");        [self loadRootVC];    }];}复制代码

path为AppStore链接：http://itunes.apple.com/cn/lookup?id=（你的Apple ID）

啊啊啊以后不要再说为什么安卓可以实现，而iOS不可以

代码质量有点渣~大家见谅