中斷線程

Question

我正在編寫一個使用語音命令移動玩具車的程序，我正在使用線程同時發送數據，問題是當我使用命令退出功能時，我無法中斷線程，請提供任何幫助。

if(response.equals("stop"))
   {
         motorLeft = 0;
         motorRight =0;
         (new Thread(new Runnable()
           {@Override
               public  void run()
               {
                   while (!Thread.interrupted())
                       try
                       {
                           Thread.sleep(1000);
                           runOnUiThread(new Runnable() // start actions in UI thread
                           {

                               @Override
                               public void run()
                               {
                                  // displayData(); // this action have to be in UI thread
                                 if(BT_is_connect) bl.sendData(String.valueOf( commandLeft+motorLeft+"\r"+commandRight+motorRight+"\r"));

                               }
                           });
                       }
                       catch (InterruptedException e)
                       {
                           // ooops
                       }
               }
           })).start(); // the while thread will start in BG thread
      }
      else

      {
         if(response.equals("exit"))   
            Thread.interrupted();


         }

Answer 1

例如使用變量

volatile  boolean interrupted = false;

然后使用該變量停止

 while (!interrupted)
 {
         try
         {
            Thread.sleep(1000);
            runOnUiThread(new Runnable() // start actions in UI thread
            {
                @Override
                public void run()
                {
                    // displayData(); // this action have to be in UI thread
                    if(BT_is_connect) bl.sendData(String.valueOf(commandLeft+motorLeft+"\r"+commandRight+motorRight+"\r"));

                }
            });
        }
         catch (InterruptedException e)
        {
             // ooops
        }       
 }

因此，當您想中斷線程時，只需將被中斷的變量更改為true

interrupted = true;