Question

我具有简单计时器的功能。该函数在OnCreate（）中调用。当我转到另一项活动并返回时，将重新创建带有计时器的活动，计时器开始以2倍的速度开始工作。

我试图从Runnable中删除removeCallbacks，但是它不起作用。

如何杀死Runnable来防止其堆积。

** Desired output **
Month   ProductID   No_despatched   No_returned   Return_reason
Jan     abc               10              2         Too big
Jan     abc               10              3         Too small
Jan     xyz               12              1         Wrong colour

Answer 1

您的Runnable未被杀死，因为它在删除后会在处理程序中运行。

var mIsStopped = false

private fun onTimerStart() {
    ed.putBoolean("thread", true).apply()
    mRunnable = Runnable {
        seconds = sp.getLong("SECONDS", 0)
        try {
            if (seconds != 0L) {
                startRun = true
                btnStartEnd.text = getString(R.string.stop)
            }
        } catch (ex: Exception) {
        }
        val hours = seconds / 3600
        val minutes = (seconds % 3600) / 60
        val secs = (seconds % 60)
        val time = String.format("%d:%02d:%02d", hours, minutes, secs)
        txtClock.text = time
        if (startRun) {
            seconds++
            ed.putLong("SECONDS", seconds).apply()
        }
        if (!mIsStopped) mHandler.postDelayed(this, 1000)
    }
    mHandler.postDelayed(mRunnable, 1000)
}

override fun onPause() {
    mHandler.removeCallbacksAndMessages(null);
    mIsStopped = true
}

override fun onResume() {
    mIsStopped = false
}

杀死可运行进程

1 个答案: