Hi everyone! I’m facing a weird issue, we used to...

# android

[Carlos Bedoy]

Hi everyone!

I’m facing a weird issue, we used to use kotlinx.synthetic, (yeah! but is deprecated now), hence we start to migrate to viewBinding (honestly much better), but I’m facing next issue.

I have a fragment such contains a MapFragment itself like this..

<androidx.cardview.widget.CardView
    android:visibility="visible"
    .....
    app:layout_constraintTop_toTopOf="parent">

    <fragment
        android:id="@+id/onTheWayMap"
        android:name="com.google.android.gms.maps.SupportMapFragment"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

</androidx.cardview.widget.CardView>

Before with kotlinx.syntheti we only invoke following lines:

override fun onCreateView(
        inflater: LayoutInflater,
        container: ViewGroup?,
        savedInstanceState: Bundle?
    ): View? = inflater.inflate(R.layout.a_fragment, container, false)


val mapFragment = childFragmentManager.findFragmentById(R.id.map) as SupportMapFragment?
        mapFragment?.getMapAsync { //mapFragments never null
            googleMap = it
            ...

Since we’re migrating to viewBinding, keeping same code above, mapFragment always is null, anyone here had faced same issue?, do you guys know how to fixed?, what can be wrong?

private val binding by lazy {
        FragmentOnTheWayBinding.inflate(LayoutInflater.from(context))
    }
    override fun onCreateView(
        inflater: LayoutInflater,
        container: ViewGroup?,
        savedInstanceState: Bundle?
    ): View? = binding.root


val mapFragment = childFragmentManager.findFragmentById(R.id.map) as SupportMapFragment?
        mapFragment?.getMapAsync { //always null
            googleMap = it

[FunkyMuse]

You can't make the binding a lazy in the fragment and inflate it using the layout inflater provided by the context, it's not the same as the fragment's

https://www.funkymuse.dev/2020/11/view-binding-for-lazy.html

[Henry]

I have the base class use for ViewBinding in fragment, if you want, please feel free to take it

https://gist.github.com/nphau/b177447b5323f93da1f62d7e75e29840