flutter setInitialRoute: 不生效

概述

須要實現native跳轉到flutter 指定的路由頁面。

 

iOS 工程中發現 FlutterViewController  setInitialRouter 無效，在個人需求裏面是： 在iOS現有工程集成flutter項目，而後能夠跳轉到任意的 業務頁面。

在iOS 之中實例化頁面有兩種方式，以下：

1. 經過全局統一的方式進行實例子化：（無效）

swift 代碼：

 @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) }

這種方式顯示效果最好，app 已啓動，就會直接加載數據，是我所須要的一種，渲染效果幾乎和native 一致，毫無違和感，交互很是流暢。

可是若是我想以前跳轉到指定頁面如：「test1」 路由頁面，卻發現不起做用；

 

二、經過全局統一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) }

上面代碼雖然有效，可是效果不是很好，並且有明顯的push 狀態。因此不是咱們想要的

三、經過new FlutterViewController 方式設置（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閃的效果，在交互上比native差一點。

 

四、flutter 路由代碼 

class MyApp extends StatelessWidget { // This widget is the root of your application. @override Widget build(BuildContext context) { return MaterialApp( title: 'Flutter rokid', debugShowCheckedModeBanner: false,// 顯示和隱藏 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: '若琪實驗室'), routes: <String ,WidgetBuilder>{ "test": (_) => new PlaygroundPage(title: "我是內部路由測試test00",),
        "test1": (_) => new PlaygroundPage(title: "我是內部路由測試test01",) },
    ); } }

 

 

參考資料：

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