Question

我有一个问题当我的活动开始时，第一个倒计时正在运行我想要做的是停止第一次倒计时，当我按下按钮，然后第二次倒计时运行第二部分有效，但我不知道如何阻止第一次倒计时任何Button都不会调用它，但它会在Activity启动时启动。

我希望你明白我在说什么抱歉我的英语不好。

这是我的代码：

Button finnish;
TextView letter;
TextView textViewState, textVievCity, textViewRiver, textViewPlant, textViewAnimal, textViewName;
EditText editTextState, editTextCity, editTextRiver, editTextPlant, editTextAnimal, editTextName;
TextView textViewAnswer1, textViewAnswer2, textViewAnswer3, textViewAnswer4, textViewAnswer5, textViewAnswer6;
TextView timer, timer1;
public int counter = 120;
public int finalCounter = 10;
public int counterStop = 0;


@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_game);

    Button finnish = (Button) findViewById(R.id.buttonFinnished);
    finnish.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {


            final TextView timer1 = (TextView) findViewById(R.id.textViewFinalCOunter);
            new CountDownTimer(10000, 1000) {

                @Override
                public void onTick(long millisUntilFinished) {
                    timer1.setText(String.valueOf(finalCounter));
                    finalCounter--;


                }

                @Override
                public void onFinish() {
                    timer1.setText("koniec rundy");
                }
            }.start();
        }
    });
    TextView letter = (TextView) findViewById(R.id.textViewLetter);
    final String[] letters = {"a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "ł", "m", "n", "o", "p", "r", "s", "t", "u", "w", "z"};
    int random = (int) (Math.random() * 23);
    letter.setText(letters[random]);

    final TextView timer = (TextView) findViewById(R.id.textViewTimer);



        new CountDownTimer(120000, 1000) {

            @Override
            public void onTick(long millisUntilFinished) {
                if (timer1 != null) {
                    timer.setText(String.valueOf(counterStop));
                } else {

                    timer.setText(String.valueOf(counter));
                    counter--;
                }
            }

            @Override
            public void onFinish() {
                timer.setText("koniec rundy");
            }
        }.start();

    }
}

Answer 1

如果要停止引用，则需要存储对CountDownTimer的引用，例如

private CountDownTimer firstCountDown;

firstCountDown = new CountDownTimer(120000, 1000){...};

然后，您可以通过按下ClickListener按钮来取消第一次倒计时，CountDownTimer#cancel()就像这样

@Override
public void onClick(View v) {
    firstCountDown.cancel()
        ...
}

第二次启动时停止第一次倒计时

1 个答案: