change routeFactory to routeMap

example/lib/main.dart

@@ -427,22 +427,14 @@ class _MyAppState extends State<MyApp> {
     },
   };
 
-  Route<dynamic>? routeFactory(RouteSettings settings, String? uniqueId) {
-    FlutterBoostRouteFactory? func = routerMap[settings.name!];
-    if (func == null) {
-      return null;
-    }
-    return func(settings, uniqueId);
-  }
-
   @override
   void initState() {
     super.initState();
   }
 
   @override
   Widget build(BuildContext context) {
-    return FlutterBoostApp(routeFactory,
+    return FlutterBoostApp.routeMap(routerMap,
         // 如果自定了appBuilder，需要将传入的参数添加到widget层次结构中去，
         // 否则会导致FluttBoost初始化失败。
         appBuilder: (child) => MaterialApp(

lib/src/boost_navigator.dart

@@ -14,14 +14,18 @@ typedef FlutterBoostRouteFactory = Route<dynamic>? Function(
     RouteSettings settings, String? uniqueId);
 
 FlutterBoostRouteFactory routeFactoryWrapper(
-    FlutterBoostRouteFactory routeFactory) {
+    FlutterBoostRouteFactory? routeFactory) {
   return (settings, uniqueId) {
-    var route = routeFactory(settings, uniqueId);
+    Route<dynamic>? route;
+    if (routeFactory != null) {
+      route = routeFactory(settings, uniqueId);
+    }
     if (route == null && settings.name == '/') {
       route = PageRouteBuilder<dynamic>(
           settings: settings, pageBuilder: (_, __, ___) => Container());
     }
-    return route;
+    assert(route != null, 'unable to build route(${settings.name})');
+    return route!;
   };
 }
 
@@ -36,13 +40,37 @@ class BoostNavigator {
   /// The boost data center
   FlutterBoostAppState? appState;
 
+  Map<String, FlutterBoostRouteFactory>? _routeMap;
+
+  set routerMap(Map<String, FlutterBoostRouteFactory> map) {
+    _routeMap = map;
+    //add '/' root-route if _routeMap doesn't contain.
+    if (!_routeMap!.containsKey('/')) {
+      _routeMap!['/'] = (settings, uniqueId) {
+        return PageRouteBuilder<dynamic>(
+            settings: settings, pageBuilder: (_, __, ___) => Container());
+      };
+    }
+  }
+
   /// The route table in flutter_boost
-  late FlutterBoostRouteFactory _routeFactory;
+  FlutterBoostRouteFactory? _routeFactory;
 
-  set routeFactory(FlutterBoostRouteFactory routeFactory) =>
+  @Deprecated(('Use `routerMap` instead'))
+  set routeFactory(FlutterBoostRouteFactory? routeFactory) =>
       _routeFactory = routeFactoryWrapper(routeFactory);
 
-  FlutterBoostRouteFactory get routeFactory => _routeFactory;
+  FlutterBoostRouteFactory? get routeFactory => _routeFactory;
+
+  Route<dynamic>? buildRoute(RouteSettings settings, String? uniqueId) {
+    if (_routeMap != null && _routeMap!.isNotEmpty) {
+      var factory = _routeMap![settings.name];
+      if (factory != null) {
+        return factory(settings, uniqueId);
+      }
+    }
+    return routeFactory!(settings, uniqueId);
+  }
 
   /// Use BoostNavigator.instance instead
   @Deprecated('Use `instance` instead.')
@@ -59,8 +87,12 @@ class BoostNavigator {
   ///
   /// If the name of route can be found in route table then return true,
   /// otherwise return false.
-  bool isFlutterPage(String name) =>
-      routeFactory(RouteSettings(name: name), null) != null;
+  bool isFlutterPage(String name) {
+    if (_routeMap != null && _routeMap!.isNotEmpty) {
+      return _routeMap!.containsKey(name);
+    }
+    return routeFactory!(RouteSettings(name: name), null) != null;
+  }
 
   /// Push the page with the given [name] onto the hybrid stack.
   /// [arguments] is the param you want to pass in next page

lib/src/flutter_boost_app.dart

@@ -23,6 +23,23 @@ import 'messages.dart';
 typedef FlutterBoostAppBuilder = Widget Function(Widget home);
 
 class FlutterBoostApp extends StatefulWidget {
+
+  FlutterBoostApp.routeMap(
+        Map<String, FlutterBoostRouteFactory> routerMap, {
+        Key? key,
+        FlutterBoostAppBuilder? appBuilder,
+        String? initialRoute,
+
+        ///interceptors is to intercept push operation now
+        List<BoostInterceptor>? interceptors,
+      })  : appBuilder = appBuilder ?? _defaultAppBuilder,
+        interceptors = interceptors ?? <BoostInterceptor>[],
+        initialRoute = initialRoute ?? '/',
+        super(key: key) {
+    BoostNavigator.instance.routerMap = routerMap;
+  }
+
+  @Deprecated('Use [FlutterBoostApp.routeMap] instead.')
   FlutterBoostApp(
     FlutterBoostRouteFactory routeFactory, {
     Key? key,
@@ -743,7 +760,7 @@ class BoostPage<T> extends Page<T> {
   BoostPage._({LocalKey? key, required this.pageInfo})
       : super(
             key: key, name: pageInfo.pageName, arguments: pageInfo.arguments) {
-    _route = BoostNavigator.instance.routeFactory(this, pageInfo.uniqueId)
+    _route = BoostNavigator.instance.buildRoute(this, pageInfo.uniqueId)
         as Route<T>?;
     assert(_route != null,
         "Oops! Route name is not registered: '${pageInfo.pageName}'.");