我有两种firestore触发器来向用户发送通知-一种触发器是在新用户创建请求表单时触发的，另一种触发器是在用户收到来自另一个用户的消息时触发的。对于每种情况下，我想重定向用户到2个不同的页面上通知点击。第一种情况为notifications页，第二种情况为chatRoom页。这是我的代码，我不知道如何根据2种不同的情况重定向到2个不同的页面。请给予我一些建议。

@override
 void initState() {
  super.initState();
 _firebaseMessaging.configure(
    onMessage: (Map<String, dynamic> message) async {

  var data = message['data'];
  if (data['screen'].toString() == 'ChatClass') {
    Navigator.push(... (context) => ChatRoom()));
  } else {
    Navigator.push(... (context) => Notifications()));
  }
}, onLaunch: (Map<String, dynamic> message) async {

  var data = message['data'];
  if (data['screen'].toString() == 'ChatClass') {
    Navigator.push(... (context) => ChatRoom()));
  } else {
    Navigator.push(... (context) => Notifications()));
  }
}, onResume: (Map<String, dynamic> message) async {
  
  var data = message['data'];
  if (data['screen'].toString() == 'ChatClass') {
    Navigator.push(... (context) => ChatRoom()));
  } else {
    Navigator.push(...(context) => Notifications()));
  }
});

}
这是我的AndroidManifest文件;

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.myappName">
//
    
<application
    android:name=".Application"
    android:label="myapp"
    android:icon="@mipmap/ic_launcher">
    
    <activity
        android:name=".MainActivity"
        android:launchMode="singleTop"
        android:theme="@style/LaunchTheme"
        android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
        android:hardwareAccelerated="true"
        android:windowSoftInputMode="adjustResize">
        //
        <meta-data
          android:name="io.flutter.embedding.android.NormalTheme"
          android:resource="@style/NormalTheme"
          />
        //
        <meta-data
          android:name="io.flutter.embedding.android.SplashScreenDrawable"
          android:resource="@drawable/launch_background"
          />
        <meta-data
            android:name="com.google.firebase.messaging.default_notification_channel_id"
            android:value="high_importance_channel" />
        
        <intent-filter>
            <action android:name="android.intent.action.MAIN"/>
            <category android:name="android.intent.category.LAUNCHER"/>
        </intent-filter>
        <intent-filter>
            <action android:name="FLUTTER_NOTIFICATION_CLICK" />
            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
    </activity>
    //
    <meta-data
        android:name="flutterEmbedding"
        android:value="2" />
</application>