no message

example/android/app/build.gradle

@@ -45,6 +45,10 @@ android {
     }
 
     buildTypes {
+        debug {
+            minifyEnabled false 
+            shrinkResources false
+        }
         release {
             // TODO: Add your own signing config for the release build.
             // Signing with the debug keys for now, so `flutter run --release` works.

example/android/app/src/main/AndroidManifest.xml

@@ -8,7 +8,7 @@
     <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
     <application
-        android:label="flutter_openim_sdk_example"
+        android:label="com.example.example"
         android:name="${applicationName}"
         android:icon="@mipmap/ic_launcher">
         <activity

example/android/app/src/main/java/io/openim/flutter_openim_sdk_example/MainActivity.java

@@ -1,6 +0,0 @@
-package io.openim.flutter_openim_sdk_example;
-
-import io.flutter.embedding.android.FlutterActivity;
-
-public class MainActivity extends FlutterActivity {
-}