Question

我正在使用countdown_flutter组件进行倒计时。启动时，它可以正常工作。但是，我想重新启动计数器（再次调用该组件），以便在按下按钮或其他操作时再次开始倒计时：

我的代码：

_buildCount() {
    return Expanded(
      child: Container(
        child: Center(
          child: CountdownFormatted(
            duration: Duration(seconds: 15),
            onFinish: () {
              _controller.nextQuestion();
              print('finished!');
            },
            builder: (BuildContext ctx, String remaining) {
              return Text(
                remaining,
                style: TextStyle(fontSize: 20),
              ); // 01:00:00
            },
          ),
        ),

      ),
    );
  }

onNext: () {
                setState(() {
                  _scoreKeeper.add(
                    Icon(
                      correct ? Icons.check : Icons.close,
                      color: correct ? Colors.green : Colors.red,
                    ),
                  );

                  if (_scoreKeeper.length < _controller.number) {
                    _buildCount(); // I would like to recall him here
                    _controller.nextQuestion();
                  } else {
                    _stopWatch.stop();
                    FinishDialog.show(
                      context,

                      usuarioLogado: usuarioLogado,

                    );
                  }
                });
              },

Answer 1

我在问答游戏中也使用了倒数计时，我意识到它就像下面的代码示例一样。

首次可以在initState方法中设置倒计时值，然后可以编写resetTimer（）函数来重置倒计时。您可以通过RaisedButton或任何您需要的函数调用onPressed函数。不要忘记使用cancel（）函数取消计时器。

Select (select count(1)
            from (Select distinct PolicyNumber
                from FinancialExtracts.dbo.INDCONEX
                where RunDate = '20200531') as IND_PolicyCount
        ) as IND_PolicyCount,
        (Select count(1)
            from (Select distinct PolicyNumber
                from FinancialExtracts.dbo.INTCRDEX
                where RunDate = '20200531') as INT_PolicyCount
        ) as INT_PolicyCount,
        (Select count(1)
            from (Select distinct PolicyNumber
                from FinancialExtracts.dbo.RACT1CR1_01
                where RunDate = '20200531') as RACT1_PolicyCount
        ) as RACT1_PolicyCount,
        (Select count(1)
            from (Select distinct PolicyNumber
                from FinancialExtracts.dbo.RACT3CR1_01
                where RunDate = '20200531') as RACT3_PolicyCount
        ) as RACT3_PolicyCount,

扑倒倒计时-行动时重新开始倒计时

1 个答案: