Question

在我的Android应用中，我通过Firebase云消息接收推送通知。通知工作完全正常，唯一的问题是我不希望在应用程序运行时收到通知。当用户使用ap时，我已经在内部显示通知，因此推送通知是多余的并且令人讨厌。以下是我如何调用推送通知的代码：

@Override
public void onMessageReceived(RemoteMessage remoteMessage) {
    NotificationCompat.Builder notificationBuilder = (NotificationCompat.Builder) new NotificationCompat.Builder(this)
            .setSmallIcon(R.drawable.ic_stat_name)
            .setContentTitle(messageTitle)
            .setContentText(messageBody)
            .setAutoCancel(true)
            .setVibrate(pattern)
            .setLights(Color.BLUE,1,1)
            .setSound(defaultSoundUri)
            .setContentIntent(pendingIntent);

    NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
    notificationManager.notify(notificationId, notificationBuilder.build());
}

我在this link上尝试了解决方案，但在我的情况下它不起作用，因为我确实想要在应用程序处于后台或被杀时发出通知。在应用启动时将布尔值设置为true，关闭应用时设置false似乎不是理想的解决方案。必须有一个更好的方法，但我找不到它。任何帮助将不胜感激。

Answer 1

我所做的是在Application类中使用ActivityLifeCycleCallbacks

   public void getdata(String cities) {
        String url = "http://api.openweathermap.org/data/2.5/weather?q=" + cities + "&APPID=8072ed7ede0fc9bcb8591a2a2eb90cfd";
        StringRequest request = new StringRequest(Request.Method.GET, url, new Response.Listener<String>() {
            @Override
            public void onResponse(String response) {
                try {
                    CityWeather cityWeather = new CityWeather();
                    JSONObject object = new JSONObject(response);
                    cityWeather.setLonitude(String.valueOf(object.getJSONObject("coord").getDouble("lon")));
                    cityWeather.setLatitude(String.valueOf(object.getJSONObject("coord").getDouble("lat")));
                    cityWeather.setCityName(object.getString("name"));
                    cityWeather.setCurrentTemp(String.valueOf(object.getJSONObject("main").getDouble("temp")));
                    cityWeather.setPressure(String.valueOf(object.getJSONObject("main").getInt("pressure")));
                    cityWeather.setHumidity(String.valueOf(object.getJSONObject("main").getInt("humidity")));
                    cityWeather.setMinTemp(String.valueOf(object.getJSONObject("main").getDouble("temp_min")));
                    cityWeather.setMaxTemp(String.valueOf(object.getJSONObject("main").getDouble("temp_max")));
                    cityWeather.setWindSpeed(String.valueOf(object.getJSONObject("wind").getDouble("speed")));
                    cityWeather.setWindDegree(String.valueOf(object.getJSONObject("wind").getInt("deg")));
                    list.add(cityWeather);
                } catch (JSONException e) {
                    Toast.makeText(MainActivity.this, e.getMessage().toString(), Toast.LENGTH_LONG).show();
                }
            }
        }, new Response.ErrorListener() {
            @Override
            public void onErrorResponse(VolleyError error) {
                Toast.makeText(MainActivity.this, error.toString(), Toast.LENGTH_LONG).show();
            }

        });

        RequestQueue queue = Volley.newRequestQueue(this);
        queue.add(request);
    }

现在，您可以在 onMessageReceived 中查看。

class MyApplication:Application(){
companion object {
        private var activitiesOpen = 0

        var displayActivity:String?= null
        private set

        fun isAppOpen() = activitiesOpen > 0
    }
    private val activitiesListener = object : ActivityLifecycleCallbacks{
        override fun onActivityPaused(activity: Activity?) {
            --activitiesOpen
            displayActivity = null
        }

        override fun onActivityResumed(activity: Activity?) {
            activitiesOpen++
            displayActivity = if(activity != null)
                activity::class.simpleName else null
        }

        override fun onActivityStarted(activity: Activity?) {
        }

        override fun onActivityDestroyed(activity: Activity?) {
        }

        override fun onActivitySaveInstanceState(activity: Activity?, outState: Bundle?) {
        }

        override fun onActivityStopped(activity: Activity?) {
        }

        override fun onActivityCreated(activity: Activity?, savedInstanceState: Bundle?) {
        }
    }

}

代码在kotlin中，我希望你对此没有任何问题。

使用app时不要调用推送通知（在前台运行）

1 个答案: