java - 最终局部变量checkstate不能分配，因为它是用封闭类型定义的

我有这样的课：

public class TimerActivity extends Activity
{
CountDownTimer cntTimer = null;
@Override
protected void onCreate(Bundle savedInstanceState)
{
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_timers);

    final ImageButton startTimerButton = (ImageButton)findViewById(R.id.timer1ImageButton);

    final EditText timerText = (EditText) findViewById(R.id.timerEditText1);

    final TextView timerTextValue = (TextView) findViewById(R.id.timerTextView);

    boolean checkstate =false;

    timerCountDown(checkstate,startTimer3Button,timerText3, timerTextValue3);
}

public void timerCountDown(boolean check,final ImageButton startTimerImageButton ,
        final EditText timerText,final TextView timerTextValue)
{
    Integer input = 0;
    if(timerText.getText().toString()!="")
        {
             input = Integer.parseInt(timerText.getText().toString())*1000 ;
        }

    CountDownTimer timer = new CountDownTimer(input, 1000)
    {
         public void onTick(long millisUntilFinished)
         {
             timerTextValue.setText("seconds remaining: " + millisUntilFinished / 1000);
         }

         public void onFinish()
         {
             timerTextValue.setText("done!");

         }
    };

    timerStatus(check,startTimerImageButton,timer);
}

public void timerStatus(final boolean checkstate, final ImageButton startTimer3Button ,final CountDownTimer downTimer)
{
    startTimer3Button.setOnClickListener(new View.OnClickListener()
    {
          public void onClick(View v)
          {
                if(checkstate==false)
            {
                startTimer3Button.setImageResource(R.drawable.reset);
                //Error
                checkstate = true;
                downTimer.start();
            }
            else
            {
                startTimer3Button.setImageResource(R.drawable.start);
                //Error
                checkstate = false;
                downTimer.cancel();
            }
         }
        });
}

}

但是我在timerStatue方法上收到以下错误：checkstate = false和checkstate = true：
 最终局部变量checkstate不能被赋值，因为它是用封闭类型定义的！

我搜索了google和stackoverflow，但是找不到与我的问题兼容的答案！
你能帮助我吗？
提前致谢！

最佳答案

我不知道您是否打算使用您的代码。有点模糊。正如Yazan所说，最好实现OnClickListener接口，以避免将final发送给它的方法。
之后，为什么一切都是final？您必须在类级别定义变量（类变量）才能从其他方法轻松访问它们，并且onCreate()方法设置其主要值。
因此，无论我如何像下面那样固定您的代码，都没有任何错误，但是我仍然没有做到这一点：

public class TimerActivity extends Activity
{
    CountDownTimer cntTimer = null;
    ImageButton startTimerButton;
    EditText timerText;
    TextView timerTextValue;
    boolean checkstate =false;
    @Override
    protected void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_timers);

        startTimerButton = (ImageButton)findViewById(R.id.timer1ImageButton);

        timerText = (EditText) findViewById(R.id.timerEditText1);

        timerTextValue = (TextView) findViewById(R.id.timerTextView);

        timerCountDown();
    }

    public void timerCountDown()
    {
        Integer input = 0;
        if(timerText.getText().toString()!="")
            {
                 input = Integer.parseInt(timerText.getText().toString())*1000 ;
            }

        CountDownTimer timer = new CountDownTimer(input, 1000)
        {
             public void onTick(long millisUntilFinished)
             {
                 timerTextValue.setText("seconds remaining: " + millisUntilFinished / 1000);
             }

             public void onFinish()
             {
                 timerTextValue.setText("done!");

             }
        };

        timerStatus(timer);
    }

    public void timerStatus(final CountDownTimer downTimer)
    {
        startTimerButton.setOnClickListener(new View.OnClickListener()
        {
              public void onClick(View v)
              {
                    if(checkstate==false)
                {
                    startTimerButton.setImageResource(android.R.drawable.ic_secure);
                    //Error
                    checkstate = true;
                    downTimer.start();
                }
                else
                {
                    startTimerButton.setImageResource(android.R.drawable.ic_delete);
                    //Error
                    checkstate = false;
                    downTimer.cancel();
                }
             }
            });
    }

}