flutter setInitialRoute: 不生效

概述

须要实现native跳转到flutter 指定的路由页面。

 

iOS 工程中发现 FlutterViewController  setInitialRouter 无效，在个人需求里面是： 在iOS现有工程集成flutter项目，而后能够跳转到任意的 业务页面。

在iOS 之中实例化页面有两种方式，以下：

1. 经过全局统一的方式进行实例子化：（无效）

swift 代码：

 @objc func handleButtonAction() { let flutterEngine = (UIApplication.shared.delegate as? AppDelegate)?.flutterEngine let flutterViewController = FlutterViewController(engine: flutterEngine, nibName: nil, bundle: nil)!
        flutterViewController.setInitialRoute("test1") 
        self.navigationController?.pushViewController(flutterViewController, animated: true) }

这种方式显示效果最好，app 已启动，就会直接加载数据，是我所须要的一种，渲染效果几乎和native 一致，毫无违和感，交互很是流畅。

可是若是我想以前跳转到指定页面如：“test1” 路由页面，却发现不起做用；

 

二、经过全局统一pushrouter方式：（有效，效果差）

swift pushRouter：

 @objc func handleButtonAction() { let flutterEngine = (UIApplication.shared.delegate as? AppDelegate)?.flutterEngine let flutterViewController = FlutterViewController(engine: flutterEngine, nibName: nil, bundle: nil)! flutterViewController.pushRoute("test1") self.navigationController?.pushViewController(flutterViewController, animated: true) }

上面代码虽然有效，可是效果不是很好，并且有明显的push 状态。因此不是咱们想要的

三、经过new FlutterViewController 方式设置（有效）

 @objc func handleButtonAction2(){ let flutterViewController = FlutterViewController() flutterViewController.setInitialRoute("test1") self.navigationController?.pushViewController(flutterViewController, animated: true) }

有效，可是每次渲染都有一闪的效果，在交互上比native差一点。

 

四、flutter 路由代码 

class MyApp extends StatelessWidget { // This widget is the root of your application. @override Widget build(BuildContext context) { return MaterialApp( title: 'Flutter rokid', debugShowCheckedModeBanner: false,// 显示和隐藏 theme: ThemeData(
        // This is the theme of your application.
        //
        // Try running your application with "flutter run". You'll see the // application has a blue toolbar. Then, without quitting the app, try // changing the primarySwatch below to Colors.green and then invoke // "hot reload" (press "r" in the console where you ran "flutter run",
        // or press Run > Flutter Hot Reload in a Flutter IDE). Notice that the // counter didn't reset back to zero; the application is not restarted. primarySwatch: Colors.blue,
      ), home: PlaygroundPage(title: '若琪实验室'), routes: <String ,WidgetBuilder>{ "test": (_) => new PlaygroundPage(title: "我是内部路由测试test00",),
        "test1": (_) => new PlaygroundPage(title: "我是内部路由测试test01",) },
    ); } }

 

 

参考资料：

https://www.gitmemory.com/issue/flutter/flutter/29554/492593645