iOS 如何实现实时版本更新

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虽然苹果禁止应用内更新，但是有时候仍需要弹出更新提示。但是iOS审核需要时间，如何实时获取信息判断是否更新呢。我们可以获取App Store中app的信息来判断。代码如下：

- (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event {

    // 1.直接请求苹果商店信息

    [self getAppStoreAppInfoWithAppID:APPID];

}

 

- (void)getAppStoreAppInfoWithAppID:(NSString *)appId {

    AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];

   

    // 可不写

    [manager.responseSerializer setAcceptableContentTypes: [NSSet setWithObjects:@"application/json", @"text/json", @"text/javascript",@"text/html", nil]];

    

    // 必传信息

    NSDictionary *dict = @{@"id":appId};//此处的Apple ID

    

    [manager POST:@"https://itunes.apple.com/lookup" parameters:dict progress:^(NSProgress * _Nonnull uploadProgress) {

        

    } success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {

        

        

        NSArray *array = responseObject[@"results"];

        if (array.count != 0) {// 先判断返回的数据是否为空

            NSDictionary *dict = array[0];

　　　　NSDictionary *infoDic = [[NSBundle mainBundle] infoDictionary];

            NSString *currentAppVersion = infoDic[@"CFBundleShortVersionString"];

            NSString *newVersion =[NSString stringWithFormat:@"%@版本更新",dict[@"version"]];

            // 也可以判断不一样就行。那样简单

            if ([dict[@"version"] compare:currentAppVersion options:NSNumericSearch] == NSOrderedDescending) {

                NSLog(@"需要更新");

                

            } else {

                NSLog(@"不需要更新");

            }

 

        }

        

    } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {

        

    }];

}

 返回结果图如下：