I have a fragment A
which contains this code:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent">
.......
<androidx.fragment.app.FragmentContainerView
android:id="@+id/children_container"
android:name="androidx.navigation.fragment.NavHostFragment"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:defaultNavHost="true"
app:navGraph="@navigation/layout_navigation" />
.......
</RelativeLayout>
that start my fragment B
. I would like to know how I can pass some argument from fragmentA
and get in my fragmentB
.
By reading this link but its talked about Activity A from Activity B.
I tried to remove this line from my FragmentContainerView
app:navGraph="@navigation/layout_navigation"
And in my fragmentA
I added this following line:
val bundle = Bundle().apply {
putString(KEY, "value")
}
NavHostFragment.create(R.navigation.layout_navigation, bundle)
In my fragment B
, my arguments
is null
Do you have any idea?
Open your navigation graph xml file and select a fragment that will receive some data. On the right side of your screen are the fragment attributes.
Select "Arguments" option and click +. Then enter arguments name, data type etc.
When you enter data in the dialog, click "Add".
Now open your "fragmentA" and init navController
val navController = Navigation.findNavController(view)
And navigate to your "fragmentB" with data in Bundle
view.findViewById<Button>(R.id.openB).setOnClickListener { // <==== YOUR CLICK LISTENER THAT NAVIGATE TO FRAGMENT B
navController.navigate(
R.id.action_fragmentA_to_fragmentB, // <==== YOUR ACTION ID (you can find it in your navigation graph XML file)
Bundle().apply {
putString("KEY", "My data") // <==== YOUR KEY AND DATA(data type should be similar to what you specified when create arguments in navigation graph XML file)
}
)
}
Now go to "fragmentB".java or.kt file and receive data by key
val data = arguments?.getString("KEY")
Hope my answer helps you!!
You can also read this article => pass data between fragments in nav component
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