New cache system

Refactoring
Separation into libraries

concurrent/src/main/AndroidManifest.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.meloda.concurrent">
+
+</manifest>

concurrent/src/main/java/com/meloda/concurrent/EventInfo.kt

@@ -0,0 +1,3 @@
+package com.meloda.concurrent
+
+class EventInfo<T> constructor(var key: String, var data: T? = null)

concurrent/src/main/java/com/meloda/concurrent/LowThread.kt

@@ -0,0 +1,12 @@
+package com.meloda.concurrent
+
+import android.os.Process
+
+class LowThread(runnable: Runnable?) : Thread(runnable) {
+
+    override fun run() {
+        Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND)
+        super.run()
+    }
+
+}

concurrent/src/main/java/com/meloda/concurrent/TaskManager.kt

@@ -0,0 +1,30 @@
+package com.meloda.concurrent
+
+object TaskManager {
+
+    private const val TAG = "TaskManager"
+
+    private val listeners = arrayListOf<OnEventListener>()
+
+    fun addOnEventListener(listener: OnEventListener) {
+        listeners.add(listener)
+    }
+
+    fun removeOnEventListener(listener: OnEventListener?) {
+        listeners.remove(listener)
+    }
+
+    fun execute(runnable: Runnable?) {
+        LowThread(runnable).start()
+    }
+
+    fun sendEvent(eventInfo: EventInfo<*>) {
+        for (listener in listeners) {
+            listener.onNewEvent(eventInfo)
+        }
+    }
+
+    interface OnEventListener {
+        fun onNewEvent(info: EventInfo<*>)
+    }
+}