我有一個來自父類的活動繼承?，F在，當我離開我的 clild 活動時，我需要關閉父線程。我不知道該怎么做。這是我的基類。public abstract class SerialPortActivity extends Activity { public class ReadThread extends Thread {    @Override    public void run() {        super.run();        while(!isInterrupted()) {            int size;            try {                if (mInputStream == null) return;                size = mInputStream.read(buffer);                if (size > 0) {                    onDataReceived(buffer, size);                }            } catch (IOException e) {                e.printStackTrace();                return;            }        }    }}@Overrideprotected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    mApplication = (Application) getApplication();    try {        mSerialPort = mApplication.getSerialPort();        mOutputStream = mSerialPort.getOutputStream();        mInputStream = mSerialPort.getInputStream();        /* Create a receiving thread */        mReadThread = new ReadThread();        mReadThread.start();    } catch (SecurityException e) {        DisplayError(R.string.error_security);    } catch (IOException e) {        DisplayError(R.string.error_unknown);    } catch (InvalidParameterException e) {        DisplayError(R.string.error_configuration);    }}protected abstract void onDataReceived(final byte[] buffer, final int size);@Overrideprotected void onDestroy() {    if (mReadThread != null)        mReadThread.interrupt();    mApplication.closeSerialPort();    mSerialPort = null;    super.onDestroy(); }}這是我的子類。public class ConsoleActivity extends SerialPortActivity {@Overrideprotected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.console);}我想在離開 ConsoleActivity 時關閉 mReadThread。當我重新啟動 ConsoleActivity 時，mReadThread 將一起重新啟動。我能怎么做？