working

App.js

@@ -3,9 +3,12 @@ import React from 'react';
 import { StyleSheet, Text, View } from 'react-native';
 
 export default function App() {
+  const test = global.mytest ?? 'not working :( :( :(';
+  console.log('here', test)
   return (
     <View style={styles.container}>
       <Text>Open up App.js to start working on your app!</Text>
+      <Text>HERE: { test }</Text>
       <StatusBar style="auto" />
     </View>
   );

android/app/CMakeLists.txt

@@ -24,7 +24,15 @@ set(PACKAGE_NAME "my_jni_module")
     #"fbjni_DIR" to a directory containing one of the above files.  If "fbjni"
     #provides a separate development package or SDK, be sure it has been
     #installed.
-#find_package(fbjni REQUIRED CONFIG)
+find_package(fbjni REQUIRED CONFIG)
+
+include_directories(
+        ../../node_modules/react-native/React
+        ../../node_modules/react-native/React/Base
+        ../../node_modules/react-native/ReactCommon
+        ../../node_modules/react-native/ReactCommon/jsi
+        ./src/cpp/
+)
 
 add_library( # Sets the name of the library.
         ${PACKAGE_NAME}
@@ -33,17 +41,21 @@ add_library( # Sets the name of the library.
         SHARED
 
         # Provides a relative path to your source file(s).
+        ../../node_modules/react-native/ReactCommon/jsi/jsi/jsi.cpp
         ./src/cpp/sample.cpp
         )
 
 target_link_libraries(${PACKAGE_NAME}
-#        fbjni::fbjni
+        fbjni::fbjni
         android
         log
 )
 
-#target_link_libraries(my_jni_module
-#                      android
-#                      log
-#                      fbjni::fbjni
-#)
+
+add_library(
+        turbomodulejsijni
+        # Sets the library as a shared library.
+        SHARED
+        # Provides a relative path to your source file(s).
+        ./src/cpp/empty.cpp
+)

android/app/build.gradle

@@ -134,13 +134,15 @@ repositories {
 }
 
 android {
+    buildFeatures {
+        prefab true
+    }
     // this also causes
     // Duplicate class com.facebook.jni.xxx found in modules jetified-fbjni-0.1.0-runtime (com.facebook.fbjni:fbjni:0.1.0) and jetified-fbjni-java-only-0.0.3 (com.facebook.fbjni:fbjni-java-only:0.0.3)
     // where xxx are 17 different classes
-    dependencies {
-        implementation 'com.facebook.fbjni:fbjni:0.1.0'
-    }
-
+//    dependencies {
+//        implementation 'com.facebook.fbjni:fbjni:0.1.0'
+//    }
     compileSdkVersion rootProject.ext.compileSdkVersion
 
     compileOptions {
@@ -184,6 +186,14 @@ android {
         }
     }
 
+    defaultConfig {
+        externalNativeBuild {
+            cmake {
+                arguments "-DANDROID_STL=c++_shared"
+            }
+        }
+    }
+
     externalNativeBuild {
         cmake {
             path "CMakeLists.txt"

android/app/src/cpp/sample.cpp

@@ -0,0 +1,26 @@
+#include <jsi/jsi.h>
+#include <jni.h>
+#include <fbjni/fbjni.h>
+// #include "DraftNativeModule.h"
+
+using namespace facebook;
+/**/
+extern "C"
+{
+    JNIEXPORT void JNICALL
+    Java_com_rnfbjni_MainActivity_install(JNIEnv *env, jobject thiz, jlong runtimePtr)
+    {
+        jsi::Runtime *runtime = (jsi::Runtime *)runtimePtr;
+        //        std::shared_ptr<comm::DraftNativeModule> nativeModule = std::make_shared<comm::DraftNativeModule>(jsCallInvoker);
+        //
+        //        runtime->global().setProperty(
+        //                                     runtime,
+        //                                     jsi::PropNameID::forAscii(*runtime, "commModule"),
+        //                                     jsi::Object::createFromHostObject(runtime, nativeModule));
+        runtime->global().setProperty(
+            *runtime,
+            jsi::PropNameID::forAscii(*runtime, "mytest"),
+            jsi::Value(*runtime, 777333));
+    }
+}
+/**/

android/app/src/main/java/com/rnfbjni/MainActivity.java

@@ -10,7 +10,16 @@
 import expo.modules.splashscreen.singletons.SplashScreen;
 import expo.modules.splashscreen.SplashScreenImageResizeMode;
 
-public class MainActivity extends ReactActivity {
+import com.facebook.react.ReactInstanceManager;
+import com.facebook.react.turbomodule.core.CallInvokerHolderImpl;
+import com.facebook.react.bridge.ReactContext;
+
+public class MainActivity extends ReactActivity implements ReactInstanceManager.ReactInstanceEventListener {
+
+    static {
+        System.loadLibrary("my_jni_module");
+    }
+
   @Override
   protected void onCreate(Bundle savedInstanceState) {
     super.onCreate(savedInstanceState);
@@ -19,7 +28,17 @@ protected void onCreate(Bundle savedInstanceState) {
     SplashScreen.show(this, SplashScreenImageResizeMode.CONTAIN, ReactRootView.class, false);
   }
 
+    @Override
+    public void onResume() {
+        super.onResume();
+        getReactInstanceManager().addReactInstanceEventListener(this);
+    }
 
+    @Override
+    public void onPause() {
+        super.onPause();
+        getReactInstanceManager().removeReactInstanceEventListener(this);
+    }
     /**
      * Returns the name of the main component registered from JavaScript.
      * This is used to schedule rendering of the component.
@@ -38,4 +57,12 @@ protected ReactRootView createRootView() {
             }
         };
     }
+
+    @Override
+    public void onReactContextInitialized(ReactContext context) {
+        CallInvokerHolderImpl holder = (CallInvokerHolderImpl)context.getCatalystInstance().getJSCallInvokerHolder();
+        install(context.getJavaScriptContextHolder().get());
+    }
+
+    public native void install(long jsContextNativePointer);
 }

android/gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
-#Mon Mar 01 17:15:43 CET 2021
+#Tue Mar 02 12:48:36 CET 2021
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.8.3-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.8.3-all.zip