Call native package if lifecycle methods are present

Author: arazabishov

android/app/src/main/java/com/microsoft/reacttestapp/TestApp.kt

@@ -1,6 +1,7 @@
 package com.microsoft.reacttestapp
 
 import android.app.Application
+import com.facebook.react.PackageList
 import com.facebook.react.ReactApplication
 import com.microsoft.reacttestapp.di.DaggerTestAppComponent
 import com.microsoft.reacttestapp.react.TestAppReactNativeHost
@@ -9,6 +10,16 @@ import dagger.android.DispatchingAndroidInjector
 import dagger.android.HasAndroidInjector
 import javax.inject.Inject
 
+private fun PackageList.invokeLifecycleMethod(name: String) {
+    packages.forEach {
+        try {
+            val methodToFind = it.javaClass.getMethod(name)
+            methodToFind.invoke(it)
+        } catch (e: NoSuchMethodException) {
+        }
+    }
+}
+
 class TestApp : Application(), HasAndroidInjector, ReactApplication {
 
     @Inject
@@ -20,12 +31,15 @@ class TestApp : Application(), HasAndroidInjector, ReactApplication {
     override fun onCreate() {
         super.onCreate()
 
-        val testAppComponent = DaggerTestAppComponent.builder()
-            .binds(this)
-            .build()
+        val packageList = PackageList(this)
+        packageList.invokeLifecycleMethod("onAppCreated")
 
+        val testAppComponent = DaggerTestAppComponent.builder()
+                .binds(this)
+                .build()
         testAppComponent.inject(this)
 
+        packageList.invokeLifecycleMethod("onPreReactNativeInit")
         reactNativeHostInternal.init()
     }