Android：推送通知

Posted 2023-02-24

【中文标题】Android：推送通知

【英文标题】：Android: Push Notification

【发布时间】：2013-09-11 09:28:50

【问题描述】：

我正在开发一个应用程序。在该应用程序中，我使用 GCM（推送通知）。

我得到了这个Link 1的帮助。

我成功实现了客户端代码。

现在要发送通知，我使用以下链接：

Link 2

但问题是我可以收到通知，但是当我点击它时什么都没有发生。

我应该怎么做，如果用户点击通知网页或更新页面等打开。

我使用了与该链接中给出的相同代码。目前尚未进行任何更改。

我在我的应用程序中间。 所以请指导我并提出您宝贵的建议。

【参考方案1】：

这个函数在你的主要活动中被调用。

public void registerClient() 

        try 
            // Check that the device supports GCM (should be in a try / catch)
            GCMRegistrar.checkDevice(viewLogin);

            // Check the manifest to be sure this app has all the required
            // permissions.
            GCMRegistrar.checkManifest(viewLogin);

            // Get the existing registration id, if it exists.
            regId = GCMRegistrar.getRegistrationId(viewLogin);

            if (regId.equals("")) 

                registrationStatus = "Registering...";

                // register this device for this project
                GCMRegistrar.register(viewLogin, GCMIntentService.PROJECT_ID);
                regId = GCMRegistrar.getRegistrationId(viewLogin);

                registrationStatus = "Registration Acquired";

                // This is actually a dummy function. At this point, one
                // would send the registration id, and other identifying
                // information to your server, which should save the id
                // for use when broadcasting messages.

             else 

                registrationStatus = "Already registered";

            
            Log.d(TAG, regId);
            sendRegistrationToServer();
         catch (Exception e) 

            e.printStackTrace();
            registrationStatus = e.getMessage();

        

        Log.d(TAG, registrationStatus);


    

公共类 GCMIntentService 扩展 GCMBaseIntentService

    public static final String PROJECT_ID = "566655788";
    private static final String TAG = "GCMIntentService";
    ModelNotificationMessage modelNotificationMessage;

    public GCMIntentService() 
        super(PROJECT_ID);
        Log.d(TAG, "GCMIntentService init");
    

    @Override
    protected void onError(Context ctx, String sError) 
        // TODO Auto-generated method stub
        Log.d(TAG, "Error: " + sError);

    

    @Override
    protected void onMessage(Context ctx, Intent intent) 

        Log.d(TAG, "Message Received");

        String message = intent.getStringExtra("message");
        try 
            modelNotificationMessage = JsonParserNotificationMessage
                    .parserString(message);
         catch (JSONException e) 
            // TODO Auto-generated catch block
            e.printStackTrace();
        
        Log.d(TAG, "Message Received" + message);

        sendNotification(message);
        Intent broadcastIntent = new Intent();
        broadcastIntent.setAction("GCM_RECEIVED_ACTION");

        broadcastIntent.putExtra("gcm", message);

        ctx.sendBroadcast(broadcastIntent);

    

    private void sendNotification(String message) 
        // this
        String ns = Context.NOTIFICATION_SERVICE;
        NotificationManager mNotificationManager = (NotificationManager) getSystemService(ns);

        int icon = R.drawable.notification;
        CharSequence tickerText = message; // ticker-text
        long when = System.currentTimeMillis();
        Context context = getApplicationContext();
        CharSequence contentTitle = modelNotificationMessage.getKey();
        CharSequence contentText = message;
        Intent notificationIntent = null;

        int NOTIFICATION_ID = 9999;
        try 

                NOTIFICATION_ID = CommonVariable.notification_Limit;
                notificationIntent = new Intent(this, ViewLimit.class);

                contentText = "Limit received for " + modelAgents.getName()
                        + ".";
                tickerText = "Limit received for " + modelAgents.getName()
                        + ".";

         catch (JSONException e) 
            // TODO Auto-generated catch block
            e.printStackTrace();
        
        // and this
        PendingIntent contentIntent = PendingIntent.getActivity(this, 0,
                notificationIntent, 0);
        Notification notification = new Notification(icon, tickerText, when);
        // Play default notification sound
        notification.defaults |= Notification.DEFAULT_ALL;
        notification.setLatestEventInfo(context, contentTitle, contentText,
                contentIntent);
        mNotificationManager.notify(NOTIFICATION_ID, notification);
    

    @Override
    protected void onRegistered(Context ctx, String regId) 
        // TODO Auto-generated method stub
        // send regId to your server
        Log.d(TAG, regId);

    

    @Override
    protected void onUnregistered(Context ctx, String regId) 
        // TODO Auto-generated method stub
        // send notification to your server to remove that regId

    

//json解析器类

public class JsonParserNotificationMessage 

    private static final String KEY = "Key";
    private static final String BODY = "Body";

    public static ModelNotificationMessage parserString(String jsonStrng)
            throws JSONException 
        JSONObject jObject = new JSONObject(jsonStrng);
        ModelNotificationMessage modelNotificationMessage = new ModelNotificationMessage();
        if (jObject != null) 
            modelNotificationMessage.setKey(jObject.getString(KEY));
            modelNotificationMessage.setBody(jObject.getString(BODY));
        
        return modelNotificationMessage;
    

希望对你有用... 如果您有任何疑问，请告诉我。此代码在我的应用中成功运行。