當應用程序在後臺時推送通知

Question

我在Android應用程序中實現了Google Cloud Messaging。當我打開應用程序時使用JSON發送消息時，它的行爲與關閉應用程序時不同。

當我有應用程序打開，並收到通知，它開始我希望它啓動的意圖。當我收到通知時，我的應用程序已關閉，並且我單擊通知，它會打開主要目的。我怎麼能說我打開應用程序並收到推送通知時需要打開哪個意圖？

在MyGcmListenerService代碼

public class MyGcmListenerService extends GcmListenerService { 

    private static final String TAG = "MyGcmListenerService"; 
    File fileDir, file; 
    String filename, filestring; 

    /** 
    * Called when message is received. 
    * 
    * @param from SenderID of the sender. 
    * @param data Data bundle containing message data as key/value pairs. 
    *    For Set of keys use data.keySet(). 
    */ 

    @Override 
    public void onMessageReceived(String from, Bundle data) { 

     Bundle notification = data.getBundle("notification"); 
     String title = notification.getString("title"); 
     String naam = notification.getString("naam"); 
     String nfcId = notification.getString("nfcId"); 
     Log.d(TAG, "From: " + from); 
     Log.d(TAG, "Title: " + title); 
     Log.d(TAG, "Naam: " + naam); 
     Log.d(TAG, "nfcId: " + nfcId); 

     if (from.startsWith("/topics/")) { 

     } else { 
      filename = "gegevensOverledene"; 
      ReadWriteFile readWriteFile = new ReadWriteFile(getApplicationContext()); 
      readWriteFile.writeFileOverledene(filename, naam); 
     } 

     sendNotification(title, naam, nfcId); 
    } 

    /** 
    * Create and show a simple notification containing the received GCM message. 
    */ 
    private void sendNotification(String title, String naam, String nfcId) { 
     Intent intent = new Intent(this, PinLoginActivity.class); 
     intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); 
     intent.putExtra("naam", naam); 
     intent.putExtra("nfcId",nfcId); 
     intent.putExtra("Class",NieuweOverledeneActivity.class); 
     PendingIntent pendingIntent = PendingIntent.getActivity(this, 0 /* Request code */, intent, PendingIntent.FLAG_ONE_SHOT); 
     Uri defaultSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION); 
     NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this) 
      .setSmallIcon(R.mipmap.ic_launcher) 
      .setContentTitle(title) 
      .setContentText(naam) 
      .setAutoCancel(true) 
      .setSound(defaultSoundUri) 
      .setContentIntent(pendingIntent); 

     NotificationManager notificationManager =     (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE); 

     notificationManager.notify(0 /* ID of notification */, notificationBuilder.build()); 
    } 
} 

我送的JSON，請注意，我離開了token_mobile故意

{ 
    "to": "TOKEN_MOBILE****************", 
    "notification": { 
     "title": "Nieuwe overledene", 
     "body": "Henk", 
     "naam": "Henk", 
     "nfcId": "80-40-A3-4A-C2-D6-04" 
    } 
} 

Answer 1

進行以下檢查

/** 
* Create and show a simple notification containing the received GCM message. 
*/ 
private void sendNotification(String title, String naam, String nfcId) { 

    //Create the intent according to your condition and pass it to pendingintent. 

    Intent intent = new Intent(this, PinLoginActivity.class); 
    intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); 
    intent.putExtra("naam", naam); 
    intent.putExtra("nfcId",nfcId); 
    intent.putExtra("Class",NieuweOverledeneActivity.class); 
    PendingIntent pendingIntent = PendingIntent.getActivity(this, 0 /* Request code */, intent, PendingIntent.FLAG_ONE_SHOT); 
    Uri defaultSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION); 
    NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this) 
     .setSmallIcon(R.mipmap.ic_launcher) 
     .setContentTitle(title) 
     .setContentText(naam) 
     .setAutoCancel(true) 
     .setSound(defaultSoundUri) 
     .setContentIntent(pendingIntent); 

    NotificationManager notificationManager =     (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE); 

    notificationManager.notify(0 /* ID of notification */, notificationBuilder.build()); 
} 

Answer 2

您正在發送通知消息。詳細瞭解如何處理通知消息here。

當您的應用程序處於前臺通知消息傳遞給您的onMessageReceived回調。在那裏你可以決定接收到的消息應該做什麼，例如：生成並顯示通知或與你的應用服務器或其他任何東西同步。

當你的應用是在後臺通知消息自動地生成基於在您的下游消息請求的「通知」對象傳遞的屬性通知，onMessageReceived未在此情況下調用。如果你看一下reference docs的通知消息，你會看到一個名爲場click_action你可以用這種方法來定義時自動生成的通知被竊聽推出什麼活動：

在Android上，如果設置，活動當用戶單擊通知時，將啓動匹配的意圖過濾器 。

如果未設置，則啓動主Activity，這是您現在看到的。

注意：此行爲僅適用於通知消息，如果只發送數據消息，則所有發送的消息將導致調用onMessageReceived。