refactor: refactored unity controller to a global singleton

.github/workflows/main.yaml

@@ -1,9 +1,16 @@
-name: genopets
+name: main
+
+permissions:
+  id-token: write # Enable OIDC
+  pull-requests: write
+  contents: write
+  packages: write
+  issues: write
 
 on: [pull_request, push]
 
 jobs:
-  build:
+  lint-test:
     runs-on: ubuntu-latest
 
     steps:
@@ -28,3 +35,22 @@ jobs:
 
       - name: Run tests
         run: flutter test --no-pub --coverage --test-randomize-ordering-seed random
+
+  prerelease:
+    runs-on: ubuntu-latest
+    needs:
+      - lint-test
+    if: github.ref == 'refs/heads/main'
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Run Release
+        uses: google-github-actions/release-please-action@v3
+        with:
+          release-type: dart
+          package-name: flutter-unity-widget
+          default-branch: main
+          signoff: "Rex Raphael <rex.raphael@outlook.com>"
+          token: ${{ secrets.GIT_TOKEN }}
+

.gitignore

@@ -36,10 +36,11 @@ build/
 android/UnityLibrary/
 
 #example/
-example/unity/DemoApp/Builds/
-example/unity/DemoApp/Library/
-example/unity/DemoApp/Logs/
-example/unity/DemoApp/Temp/
+**/Builds/**
+examples/unity/*/Builds/
+examples/unity/*/Library/
+examples/unity/*/Logs/
+examples/unity/*/Temp/
 
 # Android related
 **/android/**/gradle-wrapper.jar
@@ -83,7 +84,7 @@ example/unity/DemoApp/Temp/
 !**/ios/**/default.perspectivev3
 !/unitypackages/flutter_tools/test/data/dart_dependencies_test/**/.packages
 
-example/unity/DemoApp/test
-example/ios/UnityLibrary
-example/android/unityLibrary
-example/web/unityLibrary
+examples/*/unity/DemoApp/test
+examples/*/ios/UnityLibrary
+examples/*/android/unityLibrary
+examples/*/web/unityLibrary

CHANGELOG.md

@@ -1,3 +1,7 @@
+## 2022.3.0-alpha1
+
+* Added support for global flutter unity controller that outlives the UnityWidget
+
 ## 2022.2.0
 
 * Enable AndroidView due to native view improvement in flutter 3.3.0

android/build.gradle

@@ -66,6 +66,9 @@ dependencies {
 
     compileOnly rootProject.findProject(":flutter_plugin_android_lifecycle")
 
+    implementation "io.reactivex.rxjava3:rxjava:3.1.4"
+    implementation 'io.reactivex.rxjava3:rxandroid:3.0.0'
+
     // FOR DEV ONLY
 //    implementation(name: 'flutter', ext:'jar')
 }

android/src/main/kotlin/com/xraph/plugin/flutter_unity_widget/DataStreamHandler.kt

@@ -0,0 +1,46 @@
+package com.xraph.plugin.flutter_unity_widget
+
+import io.flutter.plugin.common.EventChannel
+import io.reactivex.rxjava3.android.schedulers.AndroidSchedulers
+import io.reactivex.rxjava3.subjects.PublishSubject
+import org.json.JSONObject
+
+class DataStreamEventNotifier {
+    companion object {
+        val notifier: PublishSubject<DataStreamEvent> = PublishSubject.create()
+    }
+}
+
+data class DataStreamEvent(val eventType: String, val data: Any) {
+    fun toMap(): Map<String, Any> {
+        return mapOf("eventType" to eventType, "data" to data)
+    }
+
+    fun toJsonString(): String {
+        return JSONObject(toMap()).toString()
+    }
+}
+
+enum class DataStreamEventTypes {
+    OnUnityViewCreated,
+    OnUnityPlayerReInitialize,
+    OnViewReattached,
+    OnUnityPlayerCreated,
+    OnUnityPlayerUnloaded,
+    OnUnityPlayerQuited,
+    OnUnitySceneLoaded,
+    OnUnityMessage,
+}
+
+class DataStreamHandler: EventChannel.StreamHandler {
+    override fun onListen(arguments: Any?, events: EventChannel.EventSink) {
+        DataStreamEventNotifier.notifier.subscribeOn(AndroidSchedulers.mainThread())
+            .observeOn(AndroidSchedulers.mainThread()).subscribe {
+                events.success(it.toMap())
+            }
+    }
+
+    override fun onCancel(arguments: Any?) {
+        DataStreamEventNotifier.notifier.unsubscribeOn(AndroidSchedulers.mainThread())
+    }
+}

android/src/main/kotlin/com/xraph/plugin/flutter_unity_widget/FlutterUnityWidgetBuilder.kt

@@ -9,14 +9,12 @@ class FlutterUnityWidgetBuilder : FlutterUnityWidgetOptionsSink {
     fun build(
             id: Int,
             context: Context?,
-            binaryMessenger: BinaryMessenger,
             lifecycle: LifecycleProvider
     ): FlutterUnityWidgetController {
         UnityPlayerUtils.options = options
         val controller = FlutterUnityWidgetController(
                 id,
                 context,
-                binaryMessenger,
                 lifecycle
         )
         controller.bootstrap()