FCM通知和数据适用于php，但仅适用于Java通知

Question

我有两个脚本，一个用于php，另一个来自Java，用于发送fcm消息。当应用程序处于前台或后台甚至被杀死时，php都可以正常工作。 Java版本的问题仅在后台或被杀死时有效，而在前台时则无效。下面是我的php和java代码。我密切关注设置在php上的工作方式，然后将其复制到java。在java中，仅通知起作用而不是数据部分。

Php在这里。

$custom_notif = array(
            'custom_notification' => array(
                'title'=> "Active in ground",
                'body'=> "Active in ground",

                'priority'=> 'high',
                'large_icon'=> "ic_launcher",
                'vibrate'=> true,
                'badge' => 0,
                'show_in_foreground'=> true,
                'opened_from_tray'=> true,
                'content_available'=> true,
            )
        );

    $message = array(
        'title'=> "Active in background",
        'body'=> "Active in Background",

        'priority'=> 'high',
        'badge' => 5,
        'large_icon'=> "ic_launcher",
        'vibrate'=> true,
        'opened_from_tray'=> true,
        'content_available'=> true,
    );


    $fields = array(
    'registration_ids' => [$registrationIds], 
    'data' => $custom_notif, 
    'priority'=> "high",     
    'notification'=>$message
    );




    $headers = array
            (
                'Authorization: key=' . API_ACCESS_KEY,
                'Content-Type: application/json'
            );

下面是我的Java

public static void pushFCMNotification(String userDeviceIdKey) throws Exception{

       String authKey = AUTH_KEY_FCM; // You FCM AUTH key
       String FMCurl = API_URL_FCM; 

       URL url = new URL(FMCurl);
       HttpURLConnection conn = (HttpURLConnection) url.openConnection();

       conn.setUseCaches(false);
       conn.setDoInput(true);
       conn.setDoOutput(true);

       conn.setRequestMethod("POST");
       conn.setRequestProperty("Authorization","key="+authKey);
       conn.setRequestProperty("Content-Type","application/json");

       JSONObject json = new JSONObject();
       json.put("to",userDeviceIdKey.trim());


       json.put("priority", "high");

       JSONObject foreground = new JSONObject();
       foreground.put("title", "Notification Foreground"); // Notification title
       foreground.put("body", "Active in foreground"); // Notification body
       //backGround.put("sound", "sirena_ambulanza.mp3"); // Notification title
       foreground.put("priority", "high"); // Notification body
       foreground.put("large_icon", "ic_launcher"); // Notification title
       foreground.put("vibrate", "true"); // Notification body
       foreground.put("badge", "0"); // Notification title
       //backGround.put("show_in_foreground", "true"); // Notification body
       foreground.put("opened_from_tray", "true"); // Notification title
       foreground.put("content_available", "true"); // Notification body

       json.put("data", foreground);


       JSONObject background = new JSONObject();
       background.put("title", "Notification In Background"); // Notification title
       background.put("body", "Active in background"); // Notification body
      // foreground.put("sound", "sirena_ambulanza.mp3"); // Notification title
       background.put("priority", "high"); // Notification body
       background.put("badge", "5"); // Notification title
       background.put("large_icon", "ic_launcher"); // Notification title
       background.put("vibrate", "true"); // Notification body     
       background.put("opened_from_tray", "true"); // Notification title
       background.put("content_available", "true"); // Notification body



       json.put("notification", background);

       OutputStreamWriter wr = new OutputStreamWriter(conn.getOutputStream());
       wr.write(json.toString());
       wr.flush();
       conn.getInputStream();
    }