Merge commit '0a175bb8b1eb8d4a40c66107ca77a2ff33212bf9' into pre_merge

# Conflicts:
#	.idea/libraries/Dart_SDK.xml
#	android/build.gradle
#	android/gradle/wrapper/gradle-wrapper.properties
#	android/src/main/AndroidManifest.xml
#	example/android/app/build.gradle
#	example/android/build.gradle
#	example/android/settings.gradle
#	example/lib/main.dart
#	example/pubspec.lock
#	ios/flutter_openim_sdk.podspec
#	lib/src/manager/im_conversation_manager.dart
#	lib/src/manager/im_friendship_manager.dart
#	lib/src/models/notification_info.dart

example/android/app/build.gradle.kts

@@ -0,0 +1,44 @@
+plugins {
+    id("com.android.application")
+    id("kotlin-android")
+    // The Flutter Gradle Plugin must be applied after the Android and Kotlin Gradle plugins.
+    id("dev.flutter.flutter-gradle-plugin")
+}
+
+android {
+    namespace = "io.openim.flutter_openim_sdk_example"
+    compileSdk = flutter.compileSdkVersion
+    ndkVersion = flutter.ndkVersion
+
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_11
+        targetCompatibility = JavaVersion.VERSION_11
+    }
+
+    kotlinOptions {
+        jvmTarget = JavaVersion.VERSION_11.toString()
+    }
+
+    defaultConfig {
+        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
+        applicationId = "io.openim.flutter_openim_sdk_example"
+        // You can update the following values to match your application needs.
+        // For more information, see: https://flutter.dev/to/review-gradle-config.
+        minSdk = flutter.minSdkVersion
+        targetSdk = flutter.targetSdkVersion
+        versionCode = flutter.versionCode
+        versionName = flutter.versionName
+    }
+
+    buildTypes {
+        release {
+            // TODO: Add your own signing config for the release build.
+            // Signing with the debug keys for now, so `flutter run --release` works.
+            signingConfig = signingConfigs.getByName("debug")
+        }
+    }
+}
+
+flutter {
+    source = "../.."
+}

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="example"
+        android:label="flutter_openim_sdk_example"
         android:name="${applicationName}"
         android:icon="@mipmap/ic_launcher">
         <activity

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

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

example/android/app/src/main/kotlin/com/example/example/MainActivity.kt

@@ -1,5 +0,0 @@
-package com.example.example
-
-import io.flutter.embedding.android.FlutterActivity
-
-class MainActivity: FlutterActivity()