1.修正返回键逻辑，存在Route的情况下默认不关闭Activity

2.增加一个pushRoute的切面能力

example/lib/main.dart

@@ -23,8 +23,7 @@ class _MyAppState extends State<MyApp> {
       'flutterFragment': (pageName, params, _) => FragmentRouteWidget(params),
 
       ///可以在native层通过 getContainerParams 来传递参数
-      'flutterPage': (pageName, params, _){
-
+      'flutterPage': (pageName, params, _) {
         print("flutterPage params:$params");
 
         return FlutterRouteWidget();
@@ -38,7 +37,35 @@ class _MyAppState extends State<MyApp> {
   Widget build(BuildContext context) {
     return MaterialApp(
         title: 'Flutter Boost example',
-        builder: FlutterBoost.init(),
+        builder: FlutterBoost.init(postPush: _onRoutePushed),
         home: Container());
   }
+
+  void _onRoutePushed(
+      String pageName, String uniqueId, Map params, Route route, Future _) {
+//    List<OverlayEntry> newEntries = route.overlayEntries
+//        .map((OverlayEntry entry) => OverlayEntry(
+//            builder: (BuildContext context) {
+//              final pageWidget = entry.builder(context);
+//              return Stack(
+//                children: <Widget>[
+//                  pageWidget,
+//                  Positioned(
+//                    child: Text(
+//                      "pageName:$pageName\npageWidget:${pageWidget.toStringShort()}",
+//                      style: TextStyle(fontSize: 12.0, color: Colors.red),
+//                    ),
+//                    left: 8.0,
+//                    top: 8.0,
+//                  )
+//                ],
+//              );
+//            },
+//            opaque: entry.opaque,
+//            maintainState: entry.maintainState))
+//        .toList(growable: true);
+//
+//    route.overlayEntries.clear();
+//    route.overlayEntries.addAll(newEntries);
+  }
 }

example/lib/simple_page_widgets.dart

@@ -240,15 +240,15 @@ class _PushWidgetState extends State<PushWidget> {
     // TODO: implement didChangeDependencies
     super.didChangeDependencies();
 
-    if (_backPressedListenerUnsub == null) {
-      _backPressedListenerUnsub =
-          BoostContainer.of(context).addBackPressedListener(() {
-        if (BoostContainer.of(context).onstage &&
-            ModalRoute.of(context).isCurrent) {
-          Navigator.pop(context);
-        }
-      });
-    }
+//    if (_backPressedListenerUnsub == null) {
+//      _backPressedListenerUnsub =
+//          BoostContainer.of(context).addBackPressedListener(() {
+//        if (BoostContainer.of(context).onstage &&
+//            ModalRoute.of(context).isCurrent) {
+//          Navigator.pop(context);
+//        }
+//      });
+//    }
   }
 
   @override
@@ -260,8 +260,6 @@ class _PushWidgetState extends State<PushWidget> {
 
   @override
   Widget build(BuildContext context) {
-    return FlutterRouteWidget(
-      message: "pushed Widget",
-    );
+    return FlutterRouteWidget(message:"Pushed Widget");
   }
 }

lib/container/boost_container.dart

@@ -22,6 +22,7 @@
  * THE SOFTWARE.
  */
 import 'package:flutter/material.dart';
+import 'package:flutter_boost/container/container_coordinator.dart';
 import 'package:flutter_boost/container/container_manager.dart';
 import 'package:flutter_boost/flutter_boost.dart';
 import 'package:flutter_boost/router/boost_page_route.dart';
@@ -124,6 +125,8 @@ class BoostContainerState extends NavigatorState {
 
   String get name => widget.settings.name;
 
+  Map get params => widget.settings.params;
+
   BoostContainerSettings get settings => widget.settings;
 
   bool get onstage =>
@@ -164,8 +167,7 @@ class BoostContainerState extends NavigatorState {
     Logger.log('performBackPressed');
 
     if (_backPressedListeners.isEmpty) {
-      FlutterBoost.singleton
-          .closePage(name, uniqueId, settings.params, animated: false);
+      pop();
     } else {
       for (VoidCallback cb in _backPressedListeners) {
         cb();
@@ -190,15 +192,30 @@ class BoostContainerState extends NavigatorState {
     if (canPop()) {
       return super.pop(result);
     } else {
-      if (BoostContainerManager.of(context).canPop()) {
-        BoostContainerManager.of(context).pop();
-        return true;
-      }
+      FlutterBoost.singleton.closePage(name, uniqueId, params);
     }
 
     return false;
   }
 
+  @override
+  Future<T> push<T extends Object>(Route<T> route) {
+    Route<T> newRoute;
+    if (FlutterBoost.containerManager.prePushRoute != null) {
+      newRoute = FlutterBoost.containerManager
+          .prePushRoute(name, uniqueId, params, route);
+    }
+
+    Future<T> future = super.push<T>(newRoute ?? route);
+
+    if (FlutterBoost.containerManager.postPushRoute != null) {
+      FlutterBoost.containerManager
+          .postPushRoute(name, uniqueId, params, newRoute ?? route, future);
+    }
+
+    return future;
+  }
+
   VoidCallback addBackPressedListener(VoidCallback listener) {
     _backPressedListeners.add(listener);
 

lib/container/container_manager.dart

@@ -37,7 +37,11 @@ typedef BoostContainerObserver = void Function(
 @immutable
 class BoostContainerManager extends StatefulWidget {
   final Navigator initNavigator;
-  const BoostContainerManager({Key key, this.initNavigator}) : super(key: key);
+  final PrePushRoute prePushRoute;
+  final PostPushRoute postPushRoute;
+  const BoostContainerManager(
+      {Key key, this.initNavigator, this.prePushRoute, this.postPushRoute})
+      : super(key: key);
 
   @override
   ContainerManagerState createState() => ContainerManagerState();
@@ -69,6 +73,10 @@ class ContainerManagerState extends State<BoostContainerManager> {
 
   String _lastShownContainer;
 
+  PrePushRoute get prePushRoute => widget.prePushRoute;
+
+  PostPushRoute get postPushRoute => widget.postPushRoute;
+
   bool get foreground => _foreground;
 
   ManagerNavigatorObserver get navigatorObserver => _navigatorObserver;

lib/flutter_boost.dart

@@ -40,6 +40,12 @@ export 'container/container_manager.dart';
 
 typedef Widget PageBuilder(String pageName, Map params, String uniqueId);
 
+typedef Route PrePushRoute(
+    String pageName, String uniqueId, Map params, Route route);
+
+typedef void PostPushRoute(
+    String pageName, String uniqueId, Map params, Route route, Future result);
+
 class FlutterBoost {
   static final FlutterBoost _instance = FlutterBoost();
   final GlobalKey<ContainerManagerState> containerManagerKey =
@@ -58,14 +64,20 @@ class FlutterBoost {
   static ContainerManagerState get containerManager =>
       _instance.containerManagerKey.currentState;
 
-  static TransitionBuilder init([TransitionBuilder builder]) {
+  static TransitionBuilder init(
+      {TransitionBuilder builder,
+      PrePushRoute prePush,
+      PostPushRoute postPush}) {
     return (BuildContext context, Widget child) {
       assert(child is Navigator, 'child must be Navigator, what is wrong?');
 
       //Logger.log('Running flutter boost opt!');
 
       final BoostContainerManager manager = BoostContainerManager(
-          key: _instance.containerManagerKey, initNavigator: child);
+          key: _instance.containerManagerKey,
+          initNavigator: child,
+          prePushRoute: prePush,
+          postPushRoute: postPush);
 
       if (builder != null) {
         return builder(context, manager);