Set default selected item

[yleyvag]

I need to set one of the items as default selected when the view is shown. Right now all items are unselected. How can I make this?

[ismaeldivita]

There is no extra attribute to set the default item via XML.

Update your library version to 1.1.2 and call menu.setItemSelected(R.id.your_menu_id) in your Activity/Fragment onCreate with the default item.

Let me know if this solves your problem

[yleyvag]

Thank you very much. It works.

[samkey123]

Where I update the library? I'm using Android Studio in Java.

[mandanai]

I use library version 1.3.1 and call menu.setItemSelected(R.id.my_menu_id)in my Activity onCreate, not work for me

[ismaeldivita]

@mandanai Are you using java? 🤔 I think it's missing a JvmOverloads on the setItemSelected

For now, please try:

menu.setItemSelected(R.id.my_menu_id, true)

[mandanai]

I using Kotlin. I using both not work for me. 😥

menu.setItemSelected(R.id.my_menu_id, true)

and

menu.setItemSelected(R.id.my_menu_id)

[ismaeldivita]

Please share your setup (layout, menu, activity)

[mandanai]

class MainActivity : AppCompatActivity() {
    private val binding: ActivityMainBinding by lazy { ActivityMainBinding.inflate(layoutInflater) }
    private val viewModel: MainViewModel = MainViewModel()

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        loadFragment(R.id.menu_map)

        binding.menuBottom.setItemSelected(R.id.menu_map, true) **_// not work_**
        binding.menuBottom.setOnItemSelectedListener {
            **_// below not work_**
            Log.d(MainActivity::class::simpleName.toString(), "Item selected")
            loadFragment(it)
        }
    }

    private fun loadFragment(itemId: Int) {
        ....
        ...
    }
}

Layout:: activity_main

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
        xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:app="http://schemas.android.com/apk/res-auto"
        android:layout_height="match_parent"
        android:layout_width="match_parent">

    <FrameLayout
            android:id="@+id/fragment_container"
            android:layout_width="match_parent"
            android:layout_height="0dp"
            app:layout_constraintBottom_toTopOf="@+id/menu_bottom"
            app:layout_constraintTop_toTopOf="parent" />

    <com.ismaeldivita.chipnavigation.ChipNavigationBar
            android:id="@+id/menu_bottom"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            app:layout_constraintBottom_toBottomOf="parent"
            app:cnb_menuResource="@menu/bottom_menu" />

</androidx.constraintlayout.widget.ConstraintLayout>

Menu: bottom_menu

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto">
    <item
            android:id="@+id/menu_nearby"
            android:title="@string/menu_nearby"
            android:icon="@drawable/ic_location_on_black"
            app:cnb_iconColor="@color/color_menu_home"/>

    <item
            android:id="@+id/menu_map"
            android:title="@string/menu_map"
            android:icon="@drawable/ic_map"
            app:cnb_iconColor="@color/color_menu_map"/>

    <item
            android:id="@+id/menu_favorite"
            android:title="@string/menu_favorite"
            android:icon="@drawable/ic_favorite"
            app:cnb_iconColor="@color/color_menu_favorite"/>
</menu>

[ismaeldivita]

@mandanai The problem doesn't seem to be in the library. Maybe you're using the view binding incorrectly.

Try something like this:

    private lateinit var binding: ActivityMainBinding

    ...

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        binding = ActivityMainBinding.inflate(layoutInflater)
        setContentView(binding.root)

        loadFragment(R.id.menu_map)
        binding.menuBottom.setItemSelected(R.id.menu_map)

        ...

[mandanai]

Thank you very much. It works :)

[rrohitmishraa]

for JAVA use this:

mBottomNavigationBar.setItemSelected(R.id.home, true);

R.id.home - itemId from Menu

[Mihir5897]

How i change item label position, bottom of icon and label is always show.