RFC + WIP: FullWindowOverlay on android

android/src/main/java/com/swmansion/rnscreens/FullWindowOverlayViewManager.kt

@@ -0,0 +1,124 @@
+package com.swmansion.rnscreens
+
+import android.content.Context
+import android.graphics.PixelFormat
+import android.view.MotionEvent
+import android.view.View
+import android.view.WindowManager
+import com.facebook.react.bridge.ReactContext
+import com.facebook.react.bridge.UiThreadUtil
+import com.facebook.react.module.annotations.ReactModule
+import com.facebook.react.uimanager.JSPointerDispatcher
+import com.facebook.react.uimanager.JSTouchDispatcher
+import com.facebook.react.uimanager.RootView
+import com.facebook.react.uimanager.ThemedReactContext
+import com.facebook.react.uimanager.UIManagerHelper
+import com.facebook.react.uimanager.ViewGroupManager
+import com.facebook.react.uimanager.events.EventDispatcher
+import com.facebook.react.views.view.ReactViewGroup
+
+class FullWindowOverlayRootViewGroup(val reactContext: ThemedReactContext): ReactViewGroup(reactContext), RootView {
+    internal var eventDispatcher: EventDispatcher? = null
+
+    internal val jSTouchDispatcher: JSTouchDispatcher = JSTouchDispatcher(this)
+    internal var jSPointerDispatcher: JSPointerDispatcher? = null
+
+    override fun onChildStartedNativeGesture(childView: View, ev: MotionEvent) {
+        eventDispatcher?.let {
+            jSTouchDispatcher.onChildStartedNativeGesture(ev, it)
+            jSPointerDispatcher?.onChildStartedNativeGesture(childView, ev, it)
+        }
+    }
+
+    override fun onChildEndedNativeGesture(childView: View, ev: MotionEvent) {
+        eventDispatcher?.let {
+            jSTouchDispatcher.onChildEndedNativeGesture(ev, it)
+            jSPointerDispatcher?.onChildEndedNativeGesture()
+        }
+    }
+
+    override fun handleException(t: Throwable) {
+        reactContext.reactApplicationContext.handleException(RuntimeException(t))
+    }
+
+    override fun onInterceptTouchEvent(event: MotionEvent): Boolean {
+        eventDispatcher?.let { eventDispatcher ->
+            jSTouchDispatcher.handleTouchEvent(event, eventDispatcher)
+            jSPointerDispatcher?.handleMotionEvent(event, eventDispatcher, true)
+        }
+        return super.onInterceptTouchEvent(event)
+    }
+
+    fun addToViewHierarchy() {
+        val windowManager = reactContext.getSystemService(Context.WINDOW_SERVICE) as WindowManager
+        val windowParams = WindowManager.LayoutParams(
+            WindowManager.LayoutParams.WRAP_CONTENT,
+            WindowManager.LayoutParams.WRAP_CONTENT,
+            WindowManager.LayoutParams.TYPE_APPLICATION,
+            (WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL
+                    or WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE
+                    or WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS
+                    or WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN),
+            PixelFormat.TRANSLUCENT
+        )
+        windowManager.addView(this, windowParams)
+    }
+}
+
+class FullWindowOverlay(val reactContext: ThemedReactContext): ReactViewGroup(reactContext) {
+    private val fullWindowOverlayRootViewGroup = FullWindowOverlayRootViewGroup(reactContext)
+
+    init {
+        fullWindowOverlayRootViewGroup.addToViewHierarchy()
+    }
+
+    public var eventDispatcher: EventDispatcher?
+        get() = fullWindowOverlayRootViewGroup.eventDispatcher
+        public set(eventDispatcher) {
+            fullWindowOverlayRootViewGroup.eventDispatcher = eventDispatcher
+        }
+
+    public override fun getChildCount(): Int = fullWindowOverlayRootViewGroup.childCount
+
+    public override fun getChildAt(index: Int): View? = fullWindowOverlayRootViewGroup.getChildAt(index)
+
+    override fun addView(child: View?, index: Int) {
+        UiThreadUtil.assertOnUiThread()
+        fullWindowOverlayRootViewGroup.addView(child, index)
+    }
+
+    override fun removeView(child: View?) {
+        UiThreadUtil.assertOnUiThread()
+
+        if (child != null) {
+            fullWindowOverlayRootViewGroup.removeView(child)
+        }
+    }
+
+    public override fun removeViewAt(index: Int) {
+        UiThreadUtil.assertOnUiThread()
+        val child = getChildAt(index)
+        fullWindowOverlayRootViewGroup.removeView(child)
+    }
+}
+
+@ReactModule(name = FullWindowOverlayViewManager.REACT_CLASS)
+class FullWindowOverlayViewManager:  ViewGroupManager<FullWindowOverlay>() {
+    companion object {
+        const val REACT_CLASS = "RNSFullWindowOverlay"
+    }
+
+    override fun getName() = FullWindowOverlayViewManager.REACT_CLASS
+
+    override fun createViewInstance(reactContext: ThemedReactContext) = FullWindowOverlay(reactContext)
+
+    protected override fun addEventEmitters(
+        reactContext: ThemedReactContext,
+        view: FullWindowOverlay
+    ) {
+        val dispatcher = UIManagerHelper.getEventDispatcherForReactTag(reactContext, view.id)
+        if (dispatcher != null) {
+            view.eventDispatcher = dispatcher
+        }
+    }
+}

android/src/main/java/com/swmansion/rnscreens/RNScreensPackage.kt

@@ -39,6 +39,7 @@ class RNScreensPackage : TurboReactPackage() {
             SearchBarManager(),
             ScreenFooterManager(),
             ScreenContentWrapperManager(),
+            FullWindowOverlayViewManager()
         )
     }
 

apps/src/tests/TestFullWindowOverlay.tsx

@@ -0,0 +1,30 @@
+import React from "react";
+import { View, Modal, Text } from "react-native";
+import { FullWindowOverlay } from "react-native-screens";
+
+export default function TestFullScreenOverlay() {
+  return (
+    <View style={{flex:1}}>
+      <View style={{position:'absolute', top:0,left:0,right:0,bottom:0}}>
+        <View style={{ flex: 1, borderColor: 'black', borderWidth: 1, borderRadius: 20, backgroundColor: 'lightcyan', position: 'absolute', top: 200, padding: 40, marginHorizontal: 20 }}>
+          <Text>RNView</Text>
+        </View>
+      </View>
+      <Modal visible={true} transparent>
+        <View style={{ flex: 1, borderColor: 'black', borderWidth: 1, borderRadius: 20, backgroundColor: 'gainsboro', position: 'absolute', top: 200, left: 100, padding: 40, marginHorizontal: 20 }}>
+          <Text>Modal</Text>
+        </View>
+      </Modal>
+      <FullWindowOverlay>
+        <View style={{ position: 'absolute', top: 160, padding: 20, marginHorizontal: 50, backgroundColor: 'wheat', borderRadius: 10, shadowOffset: { width: 4, height: 4}, shadowOpacity: 0.2, shadowRadius: 10}}>
+          <Text>FullWindowOverlay #1</Text>
+        </View>
+      </FullWindowOverlay>
+      <FullWindowOverlay>
+        <View style={{ position: 'absolute', top: 280, padding: 20, marginHorizontal: 50, backgroundColor: 'wheat', borderRadius: 10, shadowOffset: { width: 4, height: 4}, shadowOpacity: 0.2, shadowRadius: 10}}>
+          <Text>FullWindowOverlay #2</Text>
+        </View>
+      </FullWindowOverlay>
+    </View>
+  )
+}

apps/src/tests/index.ts

@@ -121,3 +121,4 @@ export { default as TestActivityStateProgression } from './TestActivityStateProg
 export { default as TestHeaderTitle } from './TestHeaderTitle';
 export { default as TestModalNavigation } from './TestModalNavigation';
 export { default as TestMemoryLeak } from './TestMemoryLeak';
+export { default as TestFullWindowOverlay } from './TestFullWindowOverlay';

guides/CONTRIBUTING.md

@@ -91,7 +91,7 @@ To begin with, let install all dependencies:
 
 1. `yarn`
 2. `yarn submodules`
-3. `(cd react-navigation && yarn prepare)`
+3. `(cd react-navigation && yarn build)`
 4. `cd Example`
 5. `yarn`
 6. `yarn start` – make sure to start metro bundler before building the app in Android Studio

src/components/FullWindowOverlay.tsx

@@ -1,5 +1,5 @@
 import React, { PropsWithChildren, ReactNode } from 'react';
-import { Platform, StyleProp, View, ViewStyle } from 'react-native';
+import { StyleProp, ViewStyle } from 'react-native';
 
 // Native components
 import FullWindowOverlayNativeComponent from '../fabric/FullWindowOverlayNativeComponent';
@@ -7,13 +7,9 @@
   PropsWithChildren<{
     style: StyleProp<ViewStyle>;
   }>
 > = FullWindowOverlayNativeComponent as any;
 
 function FullWindowOverlay(props: { children: ReactNode }) {
-  if (Platform.OS !== 'ios') {
-    console.warn('Using FullWindowOverlay is only valid on iOS devices.');
-    return <View {...props} />;
-  }
   return (
     <NativeFullWindowOverlay
       style={{ position: 'absolute', width: '100%', height: '100%' }}>