在两个导航图之间跳转

如何解决在两个导航图之间跳转

对于导航，我使用 Navigation 组件，我使用 Navigation Extension BottomNavigationView 连接到它。我试图从一个图表切换到另一个图表，但他总是向我展示一个错误，他找不到去哪里的路径。如果从一个图到另一个图的方式

Navigation Component和bottomNavView连接的代码

class MainActivity : AppCompatActivity(R.layout.activity_main) {

    private lateinit var appBarConfiguration: AppBarConfiguration
    private var currentNavController: LiveData<NavController>? = null


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

        window.decorView.systemUIVisibility = View.SYstem_UI_FLAG_LIGHT_STATUS_BAR;


        if (savedInstanceState == null) {
            initNavigationComponent()

        }
    }

    override fun onRestoreInstanceState(savedInstanceState: Bundle) {
        super.onRestoreInstanceState(savedInstanceState)
        
        initNavigationComponent()
    }

    override fun onSupportNavigateUp(): Boolean {
        return currentNavController?.value?.navigateUp(appBarConfiguration) ?: false
                || super.onSupportNavigateUp()
    }

    private fun initNavigationComponent() {

        appBarConfiguration =
            AppBarConfiguration(setof(R.id.auth_fragment,R.id.main_screen_fragment))

        setSupportActionBar(toolbar)

        val navGraphIds =
            listof(R.navigation.nav_main,R.navigation.nav_catalog,R.navigation.nav_profile)

        // Setup the bottom navigation view with a list of navigation graphs
        val controller = bottom_nav.setupWithNavController(
            navGraphIds = navGraphIds,fragmentManager = supportFragmentManager,containerId = R.id.main_nav_fragment,intent = intent
        )

        controller.observe(this,{ navController ->
            setupActionBarWithNavController(navController,appBarConfiguration)

            collapsingToolbarLayout.setupWithNavController(
                toolbar,navController,appBarConfiguration
            )

            navController.addOnDestinationChangedListener {...} )

        currentNavController = controller

    }
}

尝试与 <include app:graph = "@navigation/myGraph" /> 连接，但也不起作用

解决方法

对于BottomNavigationView 选项卡之间的多backstack 导航，请使用以下谷歌示例： Multiple BackStack Navigation