jetpack 撰写 navController popBackStack 多个页面

Question

我有 A、B 和 C 三个页面，通过导航顺序访问这三个页面。

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A -> B -> C

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如何从C返回A？

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这些官方描述应该有用，但是don\xe2\x80\x99不懂。

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// Pop everything up to the "home" destination off the back stack before\n// navigating to the "friends" destination\nnavController.navigate(\xe2\x80\x9cfriends\xe2\x80\x9d) {\n    popUpTo("home")\n}\n\n// Pop everything up to and including the "home" destination off\n// the back stack before navigating to the "friends" destination\nnavController.navigate("friends") {\n    popUpTo("home") { inclusive = true }\n}\n\n// Navigate to the "search\xe2\x80\x9d destination only if we\xe2\x80\x99re not already on\n// the "search" destination, avoiding multiple copies on the top of the\n// back stack\nnavController.navigate("search") {\n    launchSingleTop = true\n}\n

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Answer 1

您所指的导航显示了导航到特定目的地时如何清除堆栈。

如果需要清除导航堆栈，可以使用popBackStack，如下所示：

navController.popBackStack(route = "A", inclusive = false)