Wake up WeChat payment successfully

Author: iamwjun

android/app/build.gradle

@@ -57,6 +57,7 @@ flutter {
 dependencies {
     implementation (name: 'alipaySdk-15.6.4-20190611174341', ext: 'aar')
     implementation "com.android.support:appcompat-v7:28.0.0"
+    implementation 'com.tencent.mm.opensdk:wechat-sdk-android-without-mta:+'
     testImplementation 'junit:junit:4.12'
     androidTestImplementation 'com.android.support.test:runner:1.0.2'
     androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'

android/app/src/main/AndroidManifest.xml

@@ -4,6 +4,8 @@
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
     <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
+    <uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS"/>
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
 
     <!-- io.flutter.app.FlutterApplication is an android.app.Application that
          calls FlutterMain.startInitialization(this); in its onCreate method.

android/app/src/main/java/com/example/example/MainActivity.java

@@ -2,6 +2,11 @@
 
 import java.util.Map;
 
+import org.json.JSONObject;
+import com.tencent.mm.opensdk.constants.Build;
+import com.tencent.mm.opensdk.modelpay.PayReq;
+import com.tencent.mm.opensdk.openapi.IWXAPI;
+import com.tencent.mm.opensdk.openapi.WXAPIFactory;
 import com.alipay.sdk.app.EnvUtils;
 import com.alipay.sdk.app.PayTask;
 import android.annotation.SuppressLint;
@@ -34,6 +39,8 @@
 import io.flutter.plugins.GeneratedPluginRegistrant;
 
 public class MainActivity extends FlutterActivity {
+  private IWXAPI api;
+
   private static final String CHANNEL = "examples.flutter.dev/battery";
   private static final String CHARGING_CHANNEL = "samples.flutter.io/charging";
   private static final String PAY_BROADCAST = "examples.pay.android.broadcast";
@@ -57,6 +64,7 @@ public void handleMessage(Message msg) {
   protected void onCreate(Bundle savedInstanceState) {
     EnvUtils.setEnv(EnvUtils.EnvEnum.SANDBOX);
     super.onCreate(savedInstanceState);
+    api = WXAPIFactory.createWXAPI(this, "wxb4ba3c02aa476ea1");
     requestPermission();
     GeneratedPluginRegistrant.registerWith(this);
 
@@ -92,7 +100,9 @@ public void onMethodCall(MethodCall call, Result result) {
             payV2(payInfo);
             break;
           case "wxpay":
-            result.success("微信支付暂不支持");
+            //result.success("微信支付暂不支持");
+            final Map<String, String> content = call.argument("payInfo");
+            weChatPay(content);
             break;
           case "test":
             multiThreadedTest();
@@ -104,6 +114,27 @@ public void onMethodCall(MethodCall call, Result result) {
     });
   }
 
+  private void weChatPay(Map<String, String> content){
+    System.out.println(content.toString());
+    try {
+      PayReq request = new PayReq();
+
+      request.appId = content.get("appid");
+      request.partnerId = content.get("partnerid");
+      request.prepayId = content.get("prepay_id");
+      request.packageValue = content.get("package");
+      request.nonceStr = content.get("nonce_str");
+      request.timeStamp = content.get("timestamp");
+      request.sign = content.get("sign");
+
+      showToast(this, "正常调起支付");
+      api.sendReq(request);
+    } catch (Exception e){
+      System.out.println("调起微信支付异常");
+    }
+
+  }
+
   private BroadcastReceiver createChargingStateChangeReceiver(final EventSink events) {
     return new BroadcastReceiver() {
       @Override

lib/base/Alipay.dart

@@ -13,7 +13,7 @@ import 'package:flutter/services.dart';
 class Post {
   final int code;
   final String message;
-  final String content;
+  final dynamic content;
 
   Post({this.code, this.message, this.content});
 
@@ -33,6 +33,7 @@ class AlipayDemo extends StatefulWidget {
 }
 
 class _AlipayDemoState extends State<AlipayDemo> {
+  final String base = "http://192.168.98.20:8080/";
   static const MethodChannel platform =
       const MethodChannel('examples.flutter.dev/battery');
   static const EventChannel eventChannel =
@@ -48,28 +49,21 @@ class _AlipayDemoState extends State<AlipayDemo> {
 
   Future<void> _wxPay() async {
     // final String message = await platform.invokeMethod("wxpay");
-    // _neverSatisfied(message);
-    final client = new http.Client();
-    Post result;
+    final Post result = await _payment("wxpay");
     try {
-      final response = await client
-          .get("https://wxpay.wxutil.com/pub_v2/app/app_pay.php")
-          .timeout(const Duration(seconds: 5));
-      result = Post.fromJson(json.decode(response.body));
+      if (result.code == 200) {
+        await platform.invokeMethod(
+            "wxpay", <String, dynamic>{"payInfo": result.content});
+      } else {
+        _neverSatisfied("错误编码: ${result.code}, 错误信息: ${result.message}");
+      }
     } on PlatformException catch (e) {
-      result = Post(code: int.parse(e.code), message: e.message, content: e.toString());
-    } on TimeoutException catch (e) {
-      result = Post(code: 408, message: e.message, content: e.toString());
-    } on FormatException catch (e) {
-      result = Post(code: 405, message: e.message, content: e.toString());
-    } on SocketException catch (e) {
-      result = Post(code: 407, message: e.message, content: e.toString());
+      _neverSatisfied(e.message);
     }
-    print("打印结果： $result.toString()");
   }
 
   Future<void> _initiatedPayment() async {
-    final Post result = await _payment();
+    final Post result = await _payment("alipay");
     try {
       if (result.code == 200) {
         _sendPaymentParameters(result.content);
@@ -109,13 +103,12 @@ class _AlipayDemoState extends State<AlipayDemo> {
     );
   }
 
-  Future<Post> _payment() async {
+  Future<Post> _payment(String type) async {
     final client = new http.Client();
     Post result;
     try {
-      final response = await client
-          .get("http://192.168.98.20:8080/alipay")
-          .timeout(const Duration(seconds: 5));
+      final response =
+          await client.get(base + type).timeout(const Duration(seconds: 5));
       result = Post.fromJson(json.decode(response.body));
     } on PlatformException catch (e) {
       result = Post(