add android.

android/app/src/main/java/com/anonymous/translationterrace/MainApplication.kt

@@ -0,0 +1,57 @@
+package com.anonymous.translationterrace
+
+import android.app.Application
+import android.content.res.Configuration
+
+import com.facebook.react.PackageList
+import com.facebook.react.ReactApplication
+import com.facebook.react.ReactNativeHost
+import com.facebook.react.ReactPackage
+import com.facebook.react.ReactHost
+import com.facebook.react.defaults.DefaultNewArchitectureEntryPoint.load
+import com.facebook.react.defaults.DefaultReactNativeHost
+import com.facebook.react.soloader.OpenSourceMergedSoMapping
+import com.facebook.soloader.SoLoader
+
+import expo.modules.ApplicationLifecycleDispatcher
+import expo.modules.ReactNativeHostWrapper
+
+class MainApplication : Application(), ReactApplication {
+
+  override val reactNativeHost: ReactNativeHost = ReactNativeHostWrapper(
+        this,
+        object : DefaultReactNativeHost(this) {
+          override fun getPackages(): List<ReactPackage> {
+            val packages = PackageList(this).packages
+            // Packages that cannot be autolinked yet can be added manually here, for example:
+            // packages.add(new MyReactNativePackage());
+            return packages
+          }
+
+          override fun getJSMainModuleName(): String = ".expo/.virtual-metro-entry"
+
+          override fun getUseDeveloperSupport(): Boolean = BuildConfig.DEBUG
+
+          override val isNewArchEnabled: Boolean = BuildConfig.IS_NEW_ARCHITECTURE_ENABLED
+          override val isHermesEnabled: Boolean = BuildConfig.IS_HERMES_ENABLED
+      }
+  )
+
+  override val reactHost: ReactHost
+    get() = ReactNativeHostWrapper.createReactHost(applicationContext, reactNativeHost)
+
+  override fun onCreate() {
+    super.onCreate()
+    SoLoader.init(this, OpenSourceMergedSoMapping)
+    if (BuildConfig.IS_NEW_ARCHITECTURE_ENABLED) {
+      // If you opted-in for the New Architecture, we load the native entry point for this app.
+      load()
+    }
+    ApplicationLifecycleDispatcher.onApplicationCreate(this)
+  }
+
+  override fun onConfigurationChanged(newConfig: Configuration) {
+    super.onConfigurationChanged(newConfig)
+    ApplicationLifecycleDispatcher.onConfigurationChanged(this, newConfig)
+  }
+}