I am trying to get a MapView going but I think I a...

# compose

[Madhava]

I am trying to get a MapView going but I think I am misunderstanding which classes to use with AndroidView and how they work exactly.

For maps, it seems like all the examples bind a MapView and a GoogleMap instance to an activity? I don't know how I can construct a MapView and connect it to a GoogleMap object in this AndroidView type pattern.

Any help would be greatly appreciated. 🙂

AndroidView(
    modifier = Modifier.fillMaxWidth().fillMaxHeight(),
    view = MapComponent(ctx, options)
)

// the getMapAsync never runs
private fun MapComponent(ctx: Context, options: GoogleMapOptions) = MapView(ctx, options).apply {
    val result = ctx.checkCallingPermission(Manifest.permission.ACCESS_FINE_LOCATION)
    Log.i("MapView", "got permission check value: $result")

    val builder = LatLngBounds.Builder()
    val cameraUpdate = CameraUpdateFactory.newLatLngBounds(builder.build(), 0)

    getMapAsync {
        Log.i("MapView", "Does this run?")
        it.uiSettings.isMyLocationButtonEnabled = true
        it.isMyLocationEnabled = true
        it.mapType = MAP_TYPE_NORMAL
    }
}

// if i try it this way, I don't see how to get a view from a fragment
private fun MapComponent(ctx: Context, options: GoogleMapOptions) = SupportMapFragment.newInstance(options).getMapAsync { 
    
}

[Mihai Popa]

Hmm, it seems to work if you do via XML:

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

and

AndroidView(resId = R.layout...., postInflationCallback = { view ->
                val fragment = (view.context as AppCompatActivity).supportFragmentManager
                    .findFragmentById(R.id.map)

                (fragment as SupportMapFragment).getMapAsync { map ->
                    ...
                }
            })

[Madhava]

Thanks for the help, that works great! Glad to know how the fallback xml pattern works. 🙂

[Mahdi]

@Mihai Popa Seems

AndroidView(resId = R.layout...., postInflationCallback = { view ->
                val fragment = (view.context as AppCompatActivity).supportFragmentManager
                    .findFragmentById(R.id.map)

                (fragment as SupportMapFragment).getMapAsync { map ->
                    ...
                }
            })

Is not working in 06 version.

[Mihai Popa]

We no longer offer the API for XML inflation. You should use the ViewBinding-based API instead:

AndroidViewBinding(MyLayoutBinding::inflate) {
   val fragment = ...
}