fix publish tracks

ApiExample/build-profile.json5

@@ -1,13 +1,5 @@
 {
   "app": {
-    "signingConfigs": [
-      {
-        "name": "default",
-        "type": "HarmonyOS",
-        "material": {
-        }
-      }
-    ],
     "products": [
       {
         "name": "default",

ApiExample/entry/oh-package.json5

@@ -6,7 +6,7 @@
   "author": "",
   "license": "",
   "dependencies": {
-    "qnrtckit": "file:library/QNRTCKit.har"
+    "qnrtckit": "file:library/qnrtckit.har"
   },
   "devDependencies": {},
   "dynamicDependencies": {}

ApiExample/entry/src/main/ets/pages/Index.ets

@@ -50,6 +50,7 @@ struct Index {
   itemTitleSize: number = 15
   titleBackgroundColor: ResourceColor = '#fff0f0f0'
   egDivider: DividerList = new DividerList(1, 10, 10, '#ffd0d0d0')
+  private pushClicked : boolean = false;
   token: string = ""
 
   aboutToAppear(): void {
@@ -59,7 +60,7 @@ struct Index {
       didShow: (from: NavDestinationContext | "navBar", to: NavDestinationContext | "navBar",
         operation: NavigationOperation, animated: boolean) => {
         if (operation == NavigationOperation.POP) {
-
+          this.pushClicked = false;
         }
       }
     })
@@ -85,7 +86,11 @@ struct Index {
       }
     }.padding(5)
     .onClick(() => {
+      if (this.pushClicked){
+        return;
+      }
       if (this.token) {
+        this.pushClicked = true;
         this.pathStack.pushPathByName(pathName, this.token);
       } else {
         prompt.showToast({

ApiExample/entry/src/main/ets/pages/video/cameraVideo/CameraVideoExample.ets

@@ -42,17 +42,20 @@ export struct CameraVideoExample {
   private cameraTrack: QNCameraVideoTrack | null = null;
   private localRenderComponentCtrl: QNComponentController = new QNComponentController();
   private remoteRenderComponentCtrl: QNComponentController = new QNComponentController();
+  private connectionState: QNConnectionState = QNConnectionState.Disconnected;
   @State localRendervisibility: Visibility = Visibility.Hidden;
   @State remoteRendervisibility: Visibility = Visibility.Hidden;
-
   private clientListener: QNClientEventListener = {
     OnConnectionStateChanged: (state: QNConnectionState, info: QNConnectionDisconnectedInfo) => {
+      this.connectionState = state;
       if (state == QNConnectionState.Connected) {
         // set local render
         this.cameraTrack!.Play(this.localRenderComponentCtrl);
         this.localRendervisibility = Visibility.Visible;
         // publish local tracks
-        this.client!.Publish(this.localTracks, null);
+        if (this.client) {
+          this.client.Publish(this.localTracks, null);
+        }
       }
     },
     OnSubscribed: (userid: string, remoteAudioTrackList: QNRemoteAudioTrack[],
@@ -90,7 +93,9 @@ export struct CameraVideoExample {
   }
 
   aboutToDisappear(): void {
-    this.client!.Leave();
+    if (this.client && this.connectionState == QNConnectionState.Connected) {
+      this.client!.Leave();
+    }
     QNRTC.DeInit();
   }
 
@@ -114,6 +119,13 @@ export struct CameraVideoExample {
     videoTrackConfig.encoderConfig = videoEncodeConfig;
     videoTrackConfig.captureConfig = videoCaptureConfig;
     this.cameraTrack = QNRTC.CreateCameraVideoTrack(videoTrackConfig)
+    // set local track
+    if (this.micTrack) {
+      this.localTracks.push(this.micTrack);
+    }
+    if (this.cameraTrack) {
+      this.localTracks.push(this.cameraTrack);
+    }
   }
 
   join(): void {