Passing viewController to iOS integration point and popping/dismissing

appyx-navigation/common/src/iosMain/kotlin/com/bumble/appyx/navigation/integration/IosNodeHost.kt

@@ -25,7 +25,7 @@ import platform.UIKit.UIScreen
 fun <N : Node> IosNodeHost(
     onBackPressedEvents: Flow<Unit>,
     modifier: Modifier = Modifier,
-    integrationPoint: IntegrationPoint = remember { MainIntegrationPoint() },
+    integrationPoint: IntegrationPoint,
     customisations: NodeCustomisationDirectory = remember { NodeCustomisationDirectoryImpl() },
     factory: NodeFactory<N>,
 ) {

appyx-navigation/common/src/iosMain/kotlin/com/bumble/appyx/navigation/integration/MainIntegrationPoint.kt

@@ -1,14 +1,24 @@
 package com.bumble.appyx.navigation.integration
 
 import com.bumble.appyx.navigation.integrationpoint.IntegrationPoint
+import platform.UIKit.UIViewController
+import platform.UIKit.navigationController
+
+class MainIntegrationPoint: IntegrationPoint() {
+    private lateinit var viewController: UIViewController
 
-class MainIntegrationPoint : IntegrationPoint() {
     override val isChangingConfigurations: Boolean
         get() = false
 
-    @Suppress("EmptyFunctionBlock")
-    override fun onRootFinished() {}
+    fun setViewController(viewController: UIViewController) {
+        this.viewController = viewController
+    }
+
+    override fun onRootFinished() {
+        viewController.dismissModalViewControllerAnimated(false)
+    }
 
-    @Suppress("EmptyFunctionBlock")
-    override fun handleUpNavigation() {}
+    override fun handleUpNavigation() {
+        viewController.navigationController?.popViewControllerAnimated(false)
+    }
 }

demos/appyx-navigation/ios/src/iosMain/kotlin/main.ios.kt

@@ -8,13 +8,15 @@ import androidx.compose.material.Scaffold
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.filled.ArrowBack
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.remember
 import androidx.compose.runtime.rememberCoroutineScope
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.window.ComposeUIViewController
 import androidx.compose.ui.zIndex
 import com.bumble.appyx.navigation.integration.IosNodeHost
+import com.bumble.appyx.navigation.integration.MainIntegrationPoint
 import com.bumble.appyx.navigation.node.container.ContainerNode
 import com.bumble.appyx.navigation.ui.AppyxSampleAppTheme
 import kotlinx.coroutines.CoroutineScope
@@ -24,8 +26,11 @@ import kotlinx.coroutines.launch
 
 val backEvents: Channel<Unit> = Channel()
 
+private val integrationPoint = MainIntegrationPoint()
+
 @Suppress("FunctionNaming")
 fun MainViewController() = ComposeUIViewController {
+
     AppyxSampleAppTheme {
         val coroutineScope = rememberCoroutineScope()
         Scaffold(
@@ -39,7 +44,8 @@ fun MainViewController() = ComposeUIViewController {
                 Box(modifier = Modifier.fillMaxSize()) {
                     IosNodeHost(
                         modifier = Modifier,
-                        onBackPressedEvents = backEvents.receiveAsFlow()
+                        onBackPressedEvents = backEvents.receiveAsFlow(),
+                        integrationPoint = remember { integrationPoint }
                     ) { buildContext ->
                         ContainerNode(
                             buildContext = buildContext,
@@ -49,6 +55,8 @@ fun MainViewController() = ComposeUIViewController {
             }
         }
     }
+}.also { uiViewController ->
+    integrationPoint.setViewController(uiViewController)
 }
 
 @Composable