send auth on android

android/src/main/kotlin/com/jarvan/fluwx/FluwxPlugin.kt

 package com.jarvan.fluwx
 
 import com.jarvan.fluwx.constant.WeChatPluginMethods
+import com.jarvan.fluwx.handler.FluwxLoginHandler
 import com.jarvan.fluwx.handler.FluwxShareHandler
 import io.flutter.plugin.common.MethodCall
 import io.flutter.plugin.common.MethodChannel
@@ -32,6 +33,10 @@ class FluwxPlugin(private var registrar: Registrar) : MethodCallHandler {
             return
         }
 
+        if ("sendAuth" == call.method){
+            FluwxLoginHandler.sendAuth(call,result)
+            return
+        }
 
         if( call.method.startsWith("share")){
             FluwxShareHandler.handle(call, result)

android/src/main/kotlin/com/jarvan/fluwx/handler/FluwxLoginHandler.kt

+package com.jarvan.fluwx.handler
+
+import com.tencent.mm.opensdk.modelbase.BaseResp
+import com.tencent.mm.opensdk.modelmsg.SendAuth
+import io.flutter.plugin.common.MethodCall
+import io.flutter.plugin.common.MethodChannel
+
+object FluwxLoginHandler {
+
+    private var channel: MethodChannel? = null
+
+
+
+    fun setMethodChannel(channel: MethodChannel) {
+        FluwxLoginHandler.channel = channel
+    }
+
+    fun sendAuth(call: MethodCall, result: MethodChannel.Result) {
+        val req = SendAuth.Req()
+        req.scope = call.argument("scope")
+        req.state = call.argument("state")
+        result.success(WXAPiHandler.wxApi!!.sendReq(req))
+    }
+
+    fun  handleResponse(response:BaseResp){
+
+
+    }
+
+
+
+}
\ No newline at end of file

android/src/main/kotlin/com/jarvan/fluwx/handler/WXAPiHandler.kt

+package com.jarvan.fluwx.handler
+
+import com.jarvan.fluwx.constant.WechatPluginKeys
+import com.tencent.mm.opensdk.openapi.IWXAPI
+import com.tencent.mm.opensdk.openapi.WXAPIFactory
+import io.flutter.plugin.common.MethodCall
+import io.flutter.plugin.common.MethodChannel
+import io.flutter.plugin.common.PluginRegistry
+
+object WXAPiHandler {
+
+    private var registrar: PluginRegistry.Registrar? = null
+    var wxApi: IWXAPI? = null
+
+
+
+    fun setRegistrar(registrar: PluginRegistry.Registrar) {
+        WXAPiHandler.registrar = registrar
+    }
+
+
+    fun registerApp(call: MethodCall, result: MethodChannel.Result) {
+
+        if(!call.argument<Boolean>(WechatPluginKeys.ANDROID)){
+            return
+        }
+
+        if (wxApi != null) {
+            result.success(mapOf(
+                    WechatPluginKeys.PLATFORM to WechatPluginKeys.ANDROID,
+                    WechatPluginKeys.RESULT to true
+            ))
+            return
+        }
+
+        val appId:String? = call.argument(WechatPluginKeys.APP_ID)
+        if (appId.isNullOrBlank()) {
+            result.error("invalid app id", "are you sure your app id is correct ?", appId)
+            return
+        }
+
+        val api = WXAPIFactory.createWXAPI(registrar!!.context().applicationContext, appId)
+        val registered = api.registerApp(appId)
+        wxApi = api
+        result.success(mapOf(
+                WechatPluginKeys.PLATFORM to WechatPluginKeys.ANDROID,
+                WechatPluginKeys.RESULT to registered
+        ))
+    }
+}
\ No newline at end of file

lib/src/fluwx_class.dart

@@ -4,7 +4,7 @@ import 'package:flutter/services.dart';
 
 import 'models/flutter_register_model.dart';
 import 'models/wechat_share_models.dart';
-
+import 'models/wechat_send_auth_model.dart';
 class Fluwx {
   static const Map<Type, String> _shareModelMethodMapper = {
     WeChatShareTextModel: "shareText",
@@ -58,6 +58,10 @@ class Fluwx {
     }
   }
 
+  Future sendAuth(WeChatSendAuthModel model) async{
+    return await _channel.invokeMethod("sendAuth", model.toMap());
+  }
+
   Future<dynamic> _handler(MethodCall methodCall) {
     if ("onShareResponse" == methodCall.method) {
       _responseFromShareController.add(methodCall.arguments);

lib/src/models/wechat_send_auth_model.dart

+class WeChatSendAuthModel {
+  final String scope;
+  final String state;
+
+  WeChatSendAuthModel(this.scope, this.state) :
+        assert(scope != null && scope
+            .trim()
+            .isNotEmpty);
+
+  Map toMap() {
+    return {
+      "scope":scope,
+      "state":state
+    };
+
+  }
+
+}
\ No newline at end of file