Threadによる非同期処理

gistfile1.java

  final Handler handler = new Handler(new Handler.Callback() { 
      @Override 
      public boolean handleMessage(Message msg) { 
          switch(msg.what) { 
              case RESULT_WHAT: 
                  handleResult((Result) msg.obj); 
                  return true; 
          }
          return false; 
      } 
  }); 

  Thread thread = new Thread(new Runnable() { 
    @Override 
    public void run() { 
        Result result = doStuff(); 
        if (isResumed()) { 
            handler.sendMessage(handler.obtainMessage(RESULT_WHAT, result)); 
        } 
    } 
  }); 

  thread.start();