45 lines
1.2 KiB
Kotlin
45 lines
1.2 KiB
Kotlin
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package com.xscm.modulemain.utils
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import kotlinx.coroutines.CoroutineScope
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import kotlinx.coroutines.Job
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import kotlinx.coroutines.delay
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import kotlinx.coroutines.flow.MutableStateFlow
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import kotlinx.coroutines.flow.StateFlow
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import kotlinx.coroutines.launch
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class CountdownTimer {
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private var job: Job? = null
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private val _timeLeft = MutableStateFlow(0L)
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val timeLeft: StateFlow<Long> = _timeLeft
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fun startCountdown(endTimestamp: Long, scope: CoroutineScope) {
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job?.cancel()
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job = scope.launch {
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while (true) {
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val currentTime = System.currentTimeMillis() / 1000
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val remainingTime = (endTimestamp - currentTime) * 1000 // 转换为毫秒
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if (remainingTime <= 0) {
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_timeLeft.value = 0
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break
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}
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_timeLeft.value = remainingTime
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delay(1000)
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}
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}
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}
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fun stop() {
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job?.cancel()
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}
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fun formatTime(milliseconds: Long): String {
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val seconds = (milliseconds / 1000).toInt()
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val minutes = seconds / 60
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val remainingSeconds = seconds % 60
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return String.format("%02d:%02d", minutes, remainingSeconds)
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}
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}
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