Android WorkerThread class

 import android.os.Handler;
 import android.os.Looper;
 import java.util.concurrent.Executor;

 class WorkerThread extends Thread implements Executor {
   private Handler handler;
   private boolean isAlive = false;

   public WorkerThread() {
     super("WorkerThread-" + System.currentTimeMillis());
   }

   public void run() {
     Looper.prepare();
     this.isAlive = true;
     this.handler = new Handler();
     synchronized (this) {
       super.notifyAll();
     }
     Looper.loop();
   }

   public Handler getHandler() {
     return this.handler;
   }

   public void stopThread() {
     this.isAlive = false;
     this.handler.getLooper().quit();
     this.handler.removeCallbacksAndMessages(null);
   }

   public static WorkerThread createWorkerThread() {
     WorkerThread thread = new WorkerThread();
     synchronized (thread) {
       thread.start();
       try {
         thread.wait();
       } catch (InterruptedException e) {
         throw new RuntimeException();
       }
       return thread;
     }
   }

   public void execute(Runnable command)
   {
     if (this.isAlive)
       this.handler.post(command);
   }
 }