无法从当前目的地找到导航 action/destination - 嵌套导航图

Question

我对 Android 整体开发和特别是导航图都是新手。我有一个带有底部导航组件（片段 2-5）和 4 个导航到其他片段（片段 6-9）的按钮的主屏幕。为了让这个结构工作，我遇到了同样的错误，它最终停止了出错，尽管我不确定我是否正确地“修复”了这个问题。这是因为我现在尝试用导航抽屉组件包装 activity 时遇到同样的错误。请帮助我解决此错误并正确构建我的代码。当我单击主页片段上的按钮时发生错误（导航抽屉和底部导航目前按预期运行）。

我的main_navigation.xml（为简洁起见省略了细节）：

    ...
    <!-- Nav graph for the 4 buttons on Home fragment-->
    <include app:graph="@navigation/home_nav_graph" />

    <!--start destination - also part of home_nav_graph-->
    <fragment
        android:id="@+id/fragment_home"
        ...
    </fragment>

    <fragment
        android:id="@+id/fragment_2"
        ...
    </fragment>
    <fragment
        android:id="@+id/fragment_3"
        ...
    </fragment>
    <fragment
        android:id="@+id/fragment_4"
        ...
    </fragment>
    <fragment>
        android:id="@+id/fragment_5"
        ...
    </fragment>

    <!--Navigation drawer-->
    <fragment
        android:id="@+id/fragment_10"
        ... />

    <fragment
        android:id="@+id/fragment_11"
        ... />

    <fragment
        android:id="@+id/fragment_12"
        ... />
    </navigation>

我的home_nav_graph.xml（负责通过按钮从主页导航到后续的4个片段）：

        <fragment
        android:id="@+id/fragment_home"
        ... >
        <action
            android:id="@+id/action_home_to_fragment6"
            app:destination="@id/fragment_6" />
        <action
            android:id="@+id/action_home_to_fragment7"
            app:destination="@id/fragment_7" />
        <action
            android:id="@+id/action_home_to_fragment8"
            app:destination="@id/fragment_8" />
        <action
            android:id="@+id/action_home_to_fragment9"
            app:destination="@id/fragment_9" />
    </fragment>
    <fragment
        android:id="@+id/fragment_6"
        ... >
        <action
            android:id="@+id/action_fragment6_to_homeFragment"
            app:destination="@id/fragment_home" />
    </fragment>
    <fragment
        android:id="@+id/fragment_7"
        ... >
        <action
            android:id="@+id/action_fragment7_to_homeFragment"
            app:destination="@id/fragment_home" />
    </fragment>
    <fragment
        android:id="@+id/fragment_8"
        ... >
        <action
            android:id="@+id/action_fragment8_to_homeFragment"
            app:destination="@id/fragment_home" />
    </fragment>
    <fragment
        android:id="@+id/fragment_9"
        ... >
        <action
            android:id="@+id/action_fragment9_to_homeFragment"
            app:destination="@id/fragment_home" />
    </fragment>
</navigation>

首页Activity.kt文件：

class HomeActivity : AppCompatActivity() {

    private lateinit var binding: HomeActivityBinding
    private lateinit var navController: NavController
    private lateinit var appBarConfiguration: AppBarConfiguration

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)

        binding = HomeActivityBinding.inflate(layoutInflater)
        val view = binding.root
        setContentView(view)

        // ...

        // Set-up bottom navigation menu & Side menu
        val navView: NavigationView = binding.navView
        val bottomNavView: BottomNavigationView = findViewById(R.id.bottom_nav_view)
        val drawerLayout: DrawerLayout = binding.homeLayout // from navi drawer structure

        val navHostFragment = supportFragmentManager
            .findFragmentById(R.id.nav_host_fragment_home_activity) as NavHostFragment
        navController = navHostFragment.navController

        // val navController = findNavController(R.id.nav_host_fragment_home_activity)
        // Passing each menu ID as a set of Ids because each
        // menu should be considered as top level destinations.
        appBarConfiguration = AppBarConfiguration(
            setOf(
                R.id.fragment_home,
                R.id.fragment_2,
                R.id.fragment_3,
                R.id.fragment_4,
                R.id.fragment_5
            ), drawerLayout
        )
        setupActionBarWithNavController(navController, appBarConfiguration)
        navView.setupWithNavController(navController)
        bottomNavView.setupWithNavController(navController)
    }

如果您希望我附加更多 Kotlin 文件，请告诉我哪些文件。

Answer 1

最终解决了我自己的问题。我将所有嵌套目的地移动到顶级导航图中。

无法从当前目的地找到导航 action/destination - 嵌套导航图

Navigation action/destination cannot be found from the current destination - nested nav graph

android

android-fragments

navigation