使用Android的Azure通知中心 - 向用戶的子集發送通知

Question

我目前正在構建一個Android消息傳遞應用程序，並且正在嘗試向屬於某個組的所有用戶發送通知。我設置了一個Azure通知中心，它可以正常發送通知給所有已註冊的設備，但我似乎無法使其僅適用於所有用戶的子集，即組。

設備在啓動時向Azure註冊並使用GCM註冊。

我嘗試使用「標籤」嘗試發送通知給個人，但我不知道如果我做的是正確的......我不能因爲它不工作！

在下面的代碼我試圖用自己的用戶名作爲標籤的通知發送到個人......

這是我服務的代碼發送通知：

// POST api/notification 
    public async Task<IHttpActionResult> Post([FromBody]Notification notification) 
    { 
     var notificationToSave = new Notification 
     { 
      NotificationGuid = Guid.NewGuid().ToString(), 
      TimeStamp = DateTime.UtcNow, 
      Message = notification.Message, 
      SenderName = notification.SenderName 
     }; 

     var recipientNames = await GetRecipientNamesFromNotificationHub(); 

     var recipientNamesString = CreateCustomRecipientNamesString(recipientNames); 

     string notificationJsonPayload = 
      "{\"data\" : " + 
      " {" + 
      " \"message\": \"" + notificationToSave.Message + "\"," + 
      " \"senderName\": \"" + notificationToSave.SenderName + "\"," + 
      " \"recipientNames\": \"" + recipientNamesString + "\"" + 
      " }" + 
      "}"; 

     var result = await _hubClient.SendGcmNativeNotificationAsync(notificationJsonPayload, "ken@test.com"); // If this second parameter is omitted then a notification is sent to all registered devices. 

     notificationToSave.TrackingId = result.TrackingId; 
     notificationToSave.Recipients = recipientNames; 

     await Session.StoreAsync(notificationToSave); 

     return Ok(notificationToSave); 
    } 

這就是我如何在Android端註冊設備：

private void sendRegistrationIdToBackend(String registrationId) { 

     String backendBaseUrl = "http://myurl.net/"; 
     if (backendBaseUrl == null || backendBaseUrl == "") 
     { 
      return; 
     } 

     PushNotificationClient client = new PushNotificationClient(backendBaseUrl); 

     Device device = createDevice(registrationId); 

     client.registerDevice(device, new Callback<Device>() { 
      @Override 
      public void success(Device device, Response response) { 
       //writeStringToSharedPreferences(SettingsActivity.SETTINGS_KEY_DEVICEGUID, device.DeviceGuid); 
       Toast.makeText(context, "Device successfully registered with backend, DeviceGUID=" + device.DeviceGuid, Toast.LENGTH_LONG).show(); 
      } 

      @Override 
      public void failure(RetrofitError retrofitError) { 
       Toast.makeText(context, "Backend registration error:" + retrofitError.getMessage(), Toast.LENGTH_LONG).show(); 
      } 
     }); 

     Log.i(TAG, registrationId); 
    } 

    private Device createDevice(String registrationId) { 
     Device device = new Device(); 
     device.Platform = "Android"; 
     device.Token = registrationId; 
     device.UserName = LogInActivity.loggedInUser; 
     device.DeviceGuid = null; 
     //todo set device.PlatformDescription based on Android version 
     device.SubscriptionCategories = new ArrayList<>(); 
     device.SubscriptionCategories.add("ken@test.com"); // This should be adding this username as a Tag which is referenced in the service.... Not sure if this is how I should do it! 
     return device; 
    } 

這是我如何註冊設備：

private async Task<RegistrationDescription> RegisterDeviceWithNotificationHub(Device device) 
    { 
     var hubTags = new HashSet<string>() 
      .Add("user", new[] { device.UserName }) 
      .Add("category", device.SubscriptionCategories); 

     var hubRegistrationId = device.HubRegistrationId ?? "0";//null or empty string as query input throws exception 
     var hubRegistration = await _hubClient.GetRegistrationAsync<RegistrationDescription>(hubRegistrationId); 
     if (hubRegistration != null) 
     { 
      hubRegistration.Tags = hubTags; 
      await _hubClient.UpdateRegistrationAsync(hubRegistration); 
     } 
     else 
     { 
      hubRegistration = await _hubClient.CreateGcmNativeRegistrationAsync(device.Token, hubTags); 
     } 
     return hubRegistration; 
    } 

Answer 1

晚上好。 您應該嘗試使用Visual Studio 2015檢查您的註冊。 安裝它，連接天藍色，天藍色的集線器，註冊設備。並嘗試在測試令牌上發送測試消息（+檢查「您的註冊是否存在於通知中心」）。