签约 A

MainModule/src/main/java/com/xscm/modulemain/utils/CountdownTimer.kt

@@ -0,0 +1,44 @@
+package com.xscm.modulemain.utils
+
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.delay
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.launch
+
+class CountdownTimer {
+    private var job: Job? = null
+    private val _timeLeft = MutableStateFlow(0L)
+    val timeLeft: StateFlow<Long> = _timeLeft
+
+    fun startCountdown(endTimestamp: Long, scope: CoroutineScope) {
+        job?.cancel()
+        job = scope.launch {
+            while (true) {
+                val currentTime = System.currentTimeMillis() / 1000
+                val remainingTime = (endTimestamp - currentTime) * 1000 // 转换为毫秒
+
+                if (remainingTime <= 0) {
+                    _timeLeft.value = 0
+                    break
+                }
+
+                _timeLeft.value = remainingTime
+                delay(1000)
+            }
+        }
+    }
+
+    fun stop() {
+        job?.cancel()
+    }
+
+    fun formatTime(milliseconds: Long): String {
+        val seconds = (milliseconds / 1000).toInt()
+        val minutes = seconds / 60
+        val remainingSeconds = seconds % 60
+        return String.format("%02d:%02d", minutes, remainingSeconds)
+    }
+}
+