如何在 Flutter 中为 Android 设置初始路由？

Question

I want to tell to my app to start in a determined route inside the onCreate method of the MainActivity like this:

override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    GeneratedPluginRegistrant.registerWith(this)
    flutterView.setInitialRoute("anotherRoute") // <-- no result
}

But it gives no results, the dart side stills receive the standard "/" as window.defaultRouteName

If I set it before calling super, it gives me NullPointer:

override fun onCreate(savedInstanceState: Bundle?) {
    flutterView.setInitialRoute("anotherRoute") // <-- NullPointer
    super.onCreate(savedInstanceState)
    GeneratedPluginRegistrant.registerWith(this)
}

Answer 1

You need to override createFlutterView method

  override fun createFlutterView(context: Context): FlutterView {
    val matchParent = WindowManager.LayoutParams(-1, -1)
    val view = FlutterView(this, null as AttributeSet?, this.createFlutterNativeView())
    view.setInitialRoute("/route2")
    view.layoutParams = matchParent

    this.setContentView(view)
    return view
  }