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Hybrid stack management for native(ios/android) and flutter

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In hybrid scenarios where there are flutter pages and native pages, and they can jump to flutter/native at will. In other words, hybrid stack management would be the first important problem we should consider. This package can manage the hybrid stack and supports any jumping between flutter/native and native/flutter.








Add dependency in pubspec.yaml:


After getting the package using "flutter packages get",you can check the examples within the package to see how to use it.

Usage in iOS side

1.Construct a navigationController as the rootWindow's rootViewController for later use when pushing.

2.Set the XURLRouter's nativeOpenUrlHandler where you can implement your own business related router logic,as below:

    [[XURLRouter sharedInstance] setNativeOpenUrlHandler:^UIViewController *(NSString *url,NSDictionary *query,NSDictionary *params){
        NSURL *tmpUrl = [NSURL URLWithString:url];
            return [XDemoController new];
        return nil;
  1. All scheme's query will be checked whehter to jump Flutter(flutter=true) or Native(flutter=false/nil)。 This is a universal logic applying in ios/android/flutter. As below:
    void XOpenURLWithQueryAndParams(NSString *url,NSDictionary *query,NSDictionary *params){
    NSURL *tmpUrl = [NSURL URLWithString:url];
    UINavigationController *rootNav = (UINavigationController*)[UIApplication sharedApplication].delegate.window.rootViewController;
    if(![kOpenUrlPrefix isEqualToString:tmpUrl.scheme])
    if([[query objectForKey:@"flutter"] boolValue]){
        [[XFlutterModule sharedInstance] openURL:url query:query params:params];
    NativeOpenUrlHandler handler = [XURLRouter sharedInstance].nativeOpenUrlHandler;
        UIViewController *vc = handler(url,query,params);
            [rootNav pushViewController:vc animated:YES];

Usage in Android side

1.Set the XURLRouter's appContextcontext with the ApplicationContext for later use when jumping.

2.Set XURLRouter's NativeRouterHandler with one always existing instance. This instance should implements XURLRouterHandler and implement method:openUrlWithQueryAndParams where you can implement your own business related router logic,as below:
  void setupNativeOpenUrlHandler(){
  public Class openUrlWithQueryAndParams(String url, HashMap query, HashMap params){
    Uri tmpUri = Uri.parse(url);
      return XDemoActivity.class;
    return null;

Usage in Flutter side

1.Init a global key for later use to fetch a context and pass it to the Router. 2.Set the Router's routerWidgetHandler where Flutter side router logic is implemented,as below:

    Router.sharedInstance().routerWidgetHandler =
        ({RouterOption routeOption, Key key}) {
      if (routeOption.url == "hrd://fdemo") {
        return new FDemoWidget(routeOption, key: key);
      return null;
    return _singleton;


1.In Flutter,the NavigatorState class located in flutter/lib/src/widgets/navigator.dart is modified by adding a getter function to fetch the history as below:

  List> get history => _history;
2.In iOS,I reuse the XFlutterViewController singleton which is embedded in FlutterViewWrapperController with the help of addChildVC/removeFromParentVC。It is necessary to ensure that the viewWill/DidAppear/Disappear call could be passed from ParentVC Appear to ChildVC(Especially the viewWillAppear: and viewDidDisappear:)。
- (BOOL)shouldAutomaticallyForwardAppearanceMethods{
    return TRUE;


KyleWongdeMacBook-Pro:ios kylewong$ /Users/kylewong/Codes/Flutter/official/flutter/bin/flutter doctor -v
[✓] Flutter (Channel unknown, v0.6.0, on Mac OS X 10.14 18A365a, locale en-CN)
    • Flutter version 0.6.0 at /Users/kylewong/Codes/Flutter/official/flutter
    • Framework revision 9299c02cf7 (5 days ago), 2018-08-16 00:35:12 +0200
    • Engine revision e3687f70c7
    • Dart version 2.1.0-dev.0.0.flutter-be6309690f

[✓] Android toolchain - develop for Android devices (Android SDK 27.0.3) • Android SDK at /Users/kylewong/Library/Android/sdk • Android NDK at /Users/kylewong/Library/Android/sdk/ndk-bundle • Platform android-27, build-tools 27.0.3 • Java binary at: /Applications/Android • Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1024-b01) • All Android licenses accepted.

[!] iOS toolchain - develop for iOS devices (Xcode 9.4.1) • Xcode at /Applications/ • Xcode 9.4.1, Build version 9F2000 • ios-deploy 1.9.2 ! CocoaPods out of date (1.5.0 is recommended). CocoaPods is used to retrieve the iOS platform side's plugin code that responds to your plugin usage on the Dart side. Without resolving iOS dependencies with CocoaPods, plugins will not work on iOS. For more info, see To upgrade: brew upgrade cocoapods pod setup

[✓] Android Studio (version 3.1) • Android Studio at /Applications/Android • Flutter plugin version 26.0.1 • Dart plugin version 173.4700 • Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1024-b01)

[!] VS Code (version 1.25.1) • VS Code at /Applications/Visual Studio • Flutter extension not installed; install from

[✓] Connected devices (1 available) • Nexus 5X • 00d25786e6b71602 • android-arm64 • Android 8.1.0 (API 27)

Though flutter beta v0.6.0 is used in my environment. In fact, this hybrid stack management logic works even in v0.3.1 and above.

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