如何转到另一个选项卡，但保留上一个选项卡

Question

我使用的是底部导航视图。例如：

TAB_1 屏幕_1 -> 屏幕_2

TAB_2 屏幕3

TAB_3 屏幕_4

我想从 Screen_2 转到 Screen_3，然后我回到 TAB_1，我想看到 Screen_2

我该怎么做？

在我的活动中

 val bottomNavigate = findViewById<BottomNavigationView>(R.id.mainButtonNavigation)
 val navController =
        (supportFragmentManager.findFragmentById(R.id.containerGuestView) as NavHostFragment).navController
    NavigationUI.setupWithNavController(bottomNavigate, navController)

在 Screen_2 中，当我点击转到 Screen_3 时

findNavController().navigate(R.id.action_global_tournamentTableGuestFragment)

Answer 1

我在我的 Activity 中添加了这个并且它起作用了

    val bottomNavigate = findViewById<BottomNavigationView>(R.id.mainButtonNavigation)
    val navController =
        (supportFragmentManager.findFragmentById(R.id.containerGuestView) as NavHostFragment).navController
    NavigationUI.setupWithNavController(bottomNavigate, navController)
    bottomNavigate.setOnItemSelectedListener {
        when (it.itemId) {
            R.id.graph_guest_leagues -> { //This is TAB_1 in Example
                navController.apply {
                    navigate(R.id.graph_guest_leagues)
                    navigate(R.id.action_leaguesFragment_to_divisionsFragment) //This is Screen_2 in Example
                }
            }
            R.id.tournamentTableGuestFragment -> navController.navigate(it.itemId)
            R.id.matchesGuestFragment -> navController.navigate(it.itemId)
            R.id.favoriteFragment -> navController.navigate(it.itemId)
        }
        true
    }