map kinda works

app/src/main/java/com/geeksville/mesh/ui/Map.kt

@@ -1,8 +1,11 @@
 package com.geeksville.mesh.ui
 
+import android.app.Activity
+import android.app.Application
+import android.os.Bundle
 import androidx.compose.Composable
+import androidx.compose.onCommit
 import androidx.ui.core.ContextAmbient
-import androidx.ui.core.Text
 import androidx.ui.fakeandroidview.AndroidView
 import androidx.ui.layout.Column
 import androidx.ui.material.MaterialTheme
@@ -11,9 +14,49 @@ import com.geeksville.android.Logging
 import com.geeksville.mesh.R
 import com.geeksville.mesh.model.UIState
 import com.mapbox.mapboxsdk.maps.MapView
+import com.mapbox.mapboxsdk.maps.Style
 
 object mapLog : Logging
 
+
+/**
+ * mapbox requires this, until compose has a nicer way of doing it, do it here
+ */
+private val mapLifecycleCallbacks = object : Application.ActivityLifecycleCallbacks {
+    var view: MapView? = null
+
+    override fun onActivityPaused(activity: Activity) {
+        view!!.onPause()
+    }
+
+    override fun onActivityStarted(activity: Activity) {
+        view!!.onStart()
+    }
+
+    override fun onActivityDestroyed(activity: Activity) {
+        view!!.onDestroy()
+    }
+
+    override fun onActivitySaveInstanceState(activity: Activity, outState: Bundle) {
+        view!!.onSaveInstanceState(outState)
+    }
+
+    override fun onActivityStopped(activity: Activity) {
+        view!!.onStop()
+    }
+
+    /**
+     * Called when the Activity calls [super.onCreate()][Activity.onCreate].
+     */
+    override fun onActivityCreated(activity: Activity, savedInstanceState: Bundle?) {
+    }
+
+    override fun onActivityResumed(activity: Activity) {
+        view!!.onResume()
+    }
+}
+
+
 @Composable
 fun MapContent() {
     analyticsScreen(name = "map")
@@ -21,13 +64,30 @@ fun MapContent() {
     val typography = MaterialTheme.typography()
     val context = ContextAmbient.current
 
+    onCommit(AppStatus.currentScreen) {
+        onDispose {
+            // We no longer care about activity lifecycle
+            (context.applicationContext as Application).unregisterActivityLifecycleCallbacks(
+                mapLifecycleCallbacks
+            )
+            mapLifecycleCallbacks.view = null
+        }
+    }
+
     Column {
-        Text("hi")
         AndroidView(R.layout.map_view) { view ->
             view as MapView
             view.onCreate(UIState.savedInstanceState)
-            view.getMapAsync {
-                mapLog.info("In getmap")
+
+            mapLifecycleCallbacks.view = view
+            (context.applicationContext as Application).registerActivityLifecycleCallbacks(
+                mapLifecycleCallbacks
+            )
+
+            view.getMapAsync { map ->
+                map.setStyle(Style.OUTDOORS) {
+                    // Map is set up and the style has loaded. Now you can add data or make other map adjustments
+                }
             }
         }
     }