Question

我正在构建一个Android应用程序，计算自其中一个活动开始以来的时间，第一次启动活动一切正常，计时器工作正常，它在TextView上显示时间。当我完成活动（翻转手机），并尝试重新启动时，计时器工作正常（我将其显示为日志）但文本视图不会更改

override fun doInBackground(vararg params: Activity): String? {
    val acc = Accelerometer(params[0])
    dealsList.forEach {Log.d("fallDeals", it) }
    while (true) {
        sleep(100)
        publishProgress()




        Log.i("TAG", "${tiltSensorsValues[0] - acc.xPos!!} ${tiltSensorsValues[1] - acc.yPos!!} ${acc.zPos!!}")
        if (flippedPhone(acc)) {
            Log.i("REFRENCES", "${dbRefrences.stateRef}")
            dbRefrences.stateRef.setValue("empty")
            addToOldDataTableDatabase()
            return "Triggered"
            break

        }
    }
}

private fun flippedPhone(acc: Accelerometer) =
        (tiltSensorsValues[0] - acc.xPos!! < -4 || tiltSensorsValues[0] - acc.xPos!! > 4 ||
                tiltSensorsValues[1] - acc.yPos!! < -4 || tiltSensorsValues[1] - acc.yPos!! > 4)


override fun onPostExecute(result: String?) {
    super.onPostExecute(result)
    dbRefrences.currentRef.child(USERS).removeValue()
    dbRefrences.stateRef.setValue("empty")
    Toast.makeText(context,setTimer(),Toast.LENGTH_SHORT).show()

}


//*********************************************
//Functions
//*********************************************

/**
 *  adding the data to the old data table
 */
private fun addToOldDataTableDatabase() {
    val oldDataTableRef = dbRefrences.tableRef.child(OLD_DATA)
    oldDataTableRef.child(gDate()).child(getCurrentTime())?.child(TIME)?.setValue(timer.text)
    Log.i("My Service", userList.size.toString())
    userList.forEach {
        oldDataTableRef.child(gDate()).child(getCurrentTime())?.child(PARTICIPANTS)?.
                child(it.userId)?.setValue(it.name)
    }

}

private fun gDate(): String {
    val c = Calendar.getInstance()
    val df = SimpleDateFormat("dd-MM-yyyy")
    return df.format(c.time)
}


/**
 * return the time that has passed since the group started
 */
private fun setTimer(): String {
    val difference = Calendar.getInstance().timeInMillis - startTime
    val minutes = TimeUnit.MILLISECONDS.toMinutes(difference).rem(60)
    val seconds = TimeUnit.MILLISECONDS.toSeconds(difference).rem(60)
    val hours = TimeUnit.MILLISECONDS.toHours(difference).rem(24)

    Log.i("TAG", "${String.format("%02d", hours)}:${String.format("%02d", minutes)}:${String.format("%02d", seconds)}")
    return "${String.format("%02d", hours)}:${String.format("%02d", minutes)}:${String.format("%02d", seconds)}"
}

/**
 * changing the textView text to the time that has passed since they started
 */
override fun onProgressUpdate(vararg values: Void?) {
    super.onProgressUpdate(*values)
    timer.text = setTimer()


}

顺便说一句，我正在使用kotlin

第二次启动AsyncTask

0 个答案: