diff --git a/android/app/src/main/java/com/tarodemo/MainApplication.kt b/android/app/src/main/java/com/tarodemo/MainApplication.kt
index 10b727a6..a430a768 100644
--- a/android/app/src/main/java/com/tarodemo/MainApplication.kt
+++ b/android/app/src/main/java/com/tarodemo/MainApplication.kt
@@ -28,7 +28,7 @@ class MainApplication : Application(), ReactApplication {
   private val mTaroReactNativeHost: TaroReactNativeHost = TaroReactNativeHost(this)
   private val mReactNativeHost: ReactNativeHost = ReactNativeHostWrapper(this, mTaroReactNativeHost)
 
-  override fun getReactNativeHost(): ReactNativeHost = mReactNativeHost
+  override val reactNativeHost: ReactNativeHost get() = mReactNativeHost
 
   fun getTaroReactNativeHost(): TaroReactNativeHost = mTaroReactNativeHost
 
diff --git a/android/app/src/main/java/com/tarodemo/devmanager/TaroDevManager.kt b/android/app/src/main/java/com/tarodemo/devmanager/TaroDevManager.kt
index 5b5423c7..b7386077 100644
--- a/android/app/src/main/java/com/tarodemo/devmanager/TaroDevManager.kt
+++ b/android/app/src/main/java/com/tarodemo/devmanager/TaroDevManager.kt
@@ -22,7 +22,7 @@ object TaroDevManager {
         }
     }
 
-    private val application = MainApplication.getInstance()
+    private val application = MainApplication.instance
     private val packagerConnectionSettings = PackagerConnectionSettings(application)
 
     private val reactNativeHost = application.reactNativeHost
@@ -63,7 +63,7 @@ object TaroDevManager {
     }
 
     private fun setJsMainModuleName(jsMainModulePath: String) {
-        application.taroReactNativeHost.jsMainModulePath = jsMainModulePath
+        application.getTaroReactNativeHost().jsMainModulePath = jsMainModulePath
     }
 
     private fun reset() {
@@ -96,4 +96,4 @@ object TaroDevManager {
             UiThreadUtil.runOnUiThread(runnable)
         }
     }
-}
\ No newline at end of file
+}