优化：消灭任何可能导致内存泄露的代码（长期跟踪的改造点）

app/src/main/java/com/idormy/sms/forwarder/service/NotifyService.kt

@@ -1,7 +1,6 @@
 package com.idormy.sms.forwarder.service
 
 import android.content.ComponentName
-import android.content.Context
 import android.os.Build
 import android.service.notification.NotificationListenerService
 import android.service.notification.StatusBarNotification
@@ -23,16 +22,9 @@ import java.util.*
 @Suppress("PrivatePropertyName", "DEPRECATION")
 class NotifyService : NotificationListenerService()/*, LifecycleOwner*/ {
 
-    private lateinit var context: Context
-
     /*private val mRegistry = LifecycleRegistry(this)*/
     private val TAG: String = "NotifyService"
 
-    override fun onCreate() {
-        super.onCreate()
-        context = applicationContext
-    }
-
     override fun onListenerConnected() {
         //super.onListenerConnected()
         // Check if Notification Listener Permission is allowed
@@ -97,7 +89,7 @@ class NotifyService : NotificationListenerService()/*, LifecycleOwner*/ {
                     )
                 )
                 .build()
-            WorkManager.getInstance(context).enqueue(request)
+            WorkManager.getInstance(applicationContext).enqueue(request)
 
             //TODO：收不到返回信息，自动消除待解决
             /*WorkManager.getInstance(context).getWorkInfoByIdLiveData(request.id)