Update PAYMENT_CN.md

doc/PAYMENT_CN.md

@@ -14,4 +14,104 @@ payWithWeChat(
               );
 ```
 
+## iOS 支付
+
+* 配置`URL Schemes` ，内容为应用的`AppID`, 可以登录微信开放平台查看。编辑`ios/Runner/Info.plist`
+
+  ```xml
+  <key>CFBundleURLSchemes</key>
+  <array>
+    <string>wx84cxxxxxx</string>
+  </array>
+  ```
+
+* 配置`LSApplicationQueriesSchemes`
+
+  ![image-20210523140138835](https://gitee.com/inkkk0516/typora/raw/master/image-20210523140138835.png)
+
+* 使用
+
+  ```dart
+  await fluwx.registerWxApi(
+            appId: "wx84cfexxxxxx",
+            universalLink: "https://www.xxxx.cn/app/");
+  
+  fluwx.payWithWeChat(
+    appId: result['appid'],
+    partnerId: result['partnerid'],
+    prepayId: result['prepayid'],
+    packageValue: result['package'],
+    nonceStr: result['noncestr'],
+    timeStamp: result['timestamp'],
+    sign: result['sign'],
+  )
+  ```
+
+  
+
+## 安卓支付
+
+* 登录[微信开放平台](https://open.weixin.qq.com/cgi-bin/index?t=home/index&lang=zh_CN&token=f3443bb5b660c02dbbc86fb324adce3239e5ab22),填写相关信息
+
+![image-20210523132928727](https://gitee.com/inkkk0516/typora/raw/master/image-20210523132928727.png)
+
+* 根据`应用包名`生成`应用签名` [点击这里下载应用签名工具](https://developers.weixin.qq.com/doc/oplatform/Downloads/Android_Resource.html), 安装好签名工具后，输入应用包名就可以生成应用签名了
+
+![image-20210523133551034](https://gitee.com/inkkk0516/typora/raw/master/image-20210523133551034.png)
+
+* 在`android/app/build.gradle`中配置依赖
+
+  ```shell
+  dependencies {
+      implementation 'com.tencent.mm.opensdk:wechat-sdk-android-without-mta:+'
+  }
+  ```
+
+* 在安卓项目包名目录下创建微信回调页面`WXPayEntryActivity.java`
+
+  ```java
+  package cn.pokedo.app.wxapi;
+  import com.jarvan.fluwx.wxapi.FluwxWXEntryActivity;
+  
+  public class WXPayEntryActivity extends FluwxWXEntryActivity {
+  }
+  ```
+
+* 在`AndroidManifest.xml`中配置
+
+  ```xml
+  <!-- 安卓微信支付 START -->
+    <activity
+        android:name=".wxapi.WXPayEntryActivity"
+        android:exported="true"
+        android:launchMode="singleTop">
+        <intent-filter>
+            <action android:name="android.intent.action.VIEW"/>
+            <category android:name="android.intent.category.DEFAULT"/>
+            <data android:scheme="wx84cfe5cd6c843545"/>
+        </intent-filter>
+    </activity>
+    <!-- 安卓微信支付 END -->
+  ```
+
+* 使用
+
+  ```dart
+  // 注册
+  await fluwx.registerWxApi(
+            appId: "wx84cxxxxxx",
+            universalLink: "https://www.xxxx.cn/app/");
+  
+  // 监听支付结果
+  fluwx.weChatResponseEventHandler.listen((event) async {
+    print(event.errCode);
+  	// 支付成功  
+    if (event.errCode == 0) {
+    }
+    // 关闭弹窗
+  });
+  ```
+
+  
+
 更多信息还查看[支付文档](https://pay.weixin.qq.com/wiki/doc/api/app/app.php?chapter=11_1#)吧.