优化退出时机

src/page/Meeting/index.tsx

@@ -152,9 +152,6 @@ const Meeting: React.FC = () => {
         },
         onUserOffline: async (info: any, remoteUid: any, reason: any) => {
           console.log(remoteUid, "离开");
-          await onInvoke('levelChannel', {
-            roomNum: info.channelId
-          })
           agora.setupRemoteVideo({
             account: Number(remoteUid),
             view: document.getElementById(`video-${remoteUid}`) as HTMLElement,
@@ -333,7 +330,10 @@ const Meeting: React.FC = () => {
     }
   }
   // 退出房间
-  const leaveChannel = (): void => {
+  const leaveChannel = async (): Promise<void> => {
+    await onInvoke('levelChannel', {
+      roomNum: state.channelId
+    })
     agora.leaveChannel()
     agora.stopScreenCapture()
     navigate(-1)