修改版本

composeApp/src/commonMain/kotlin/com.dong.demo013/Log/HighLogDemo.kt

@@ -13,6 +13,8 @@ import kotlinx.coroutines.delay
 import kotlinx.coroutines.isActive
 import kotlin.time.TimeSource
 
+private const val TIMER_MAX_SECONDS = 20 * 60L // 20 分钟上限
+
 @OptIn(ExperimentalLayoutApi::class)
 @Composable
 internal fun HighLogDemo() {
@@ -27,13 +29,20 @@ internal fun HighLogDemo() {
     val timeSource = remember { TimeSource.Monotonic }
     var startTimeMark by remember { mutableStateOf(timeSource.markNow()) }
     
-    // 使用 LaunchedEffect 实现计时器
+    // 使用 LaunchedEffect 实现计时器，达到 20 分钟自动停止
     LaunchedEffect(isTimerRunning) {
         if (isTimerRunning) {
             startTimeMark = timeSource.markNow()
             while (isActive && isTimerRunning) {
                 delay(1000) // 每 1000ms 更新一次显示
-                displayTime = startTimeMark.elapsedNow().inWholeSeconds
+                val elapsed = startTimeMark.elapsedNow().inWholeSeconds
+                displayTime = elapsed
+                if (elapsed >= TIMER_MAX_SECONDS) {
+                    isTimerRunning = false
+                    isGenerating = false
+                    displayTime = TIMER_MAX_SECONDS
+                    break
+                }
             }
         } else {
             // 暂停时重置时间
@@ -67,7 +76,7 @@ internal fun HighLogDemo() {
                     .padding(16.dp)
             ) {
                 Text(
-                    "运行时间",
+                    "运行时间（上限 20 分钟）",
                     style = MaterialTheme.typography.h6,
                     modifier = Modifier.padding(bottom = 12.dp)
                 )

harmonyApp/hvigor/hvigor-config.json5

 {
-  "modelVersion": "6.0.0",
+  "modelVersion": "5.0.5",
   "dependencies": {
   },
   "execution": {

harmonyApp/oh-package.json5

 {
-  "modelVersion": "6.0.0",
+  "modelVersion": "5.0.5",
   "description": "Please describe the basic information.",
   "dependencies": {
   },