This, in turn, makes it harder to do anti-pattern stuff and increase performances. The main selling point of controllers is that they remove the need of a GlobalKey to access the widget State. Please note that I've figured a simple workaround, but I still want to know the widget tree status inside the navigator, Thanks in advance. In flutter, controllers are a means to give control to the parent widget over its child state. The question is, "is the widgets tree stable during pushReplacement?"Īny other comments or suggestion on the code are welcome, but are not required, answer backed with links or docs is highly appreciated. However as you might have guessed, whenever the user navigates a new settings widget is re-created and user preferred settings are dropped, I tried to transfer the user setting data from the old widget to the new one, but FilterSetting.of(context) raised an assertion exception that it couldn't find a FilterSetting widget in the tree. Whether it's easy placement of a button on an app or a simple transition between screens, these four widgets are the first of many that can be analyzed and used to create brilliant experiences for the end user without draining the developer at all. ![]() Return FilterSettings(child: requestedScreen) Flutter widgets are one of those tools that help simplify and improve the process. Fluid and flexible widgets Syncfusion Flutter widgets and their elements are highly customizable and work with any layout widget. that caused the settings widget to sink in the widget tree, Syncfusion Flutter widgets are written natively in Dart to help you create rich, high-quality applications for iOS, Android, Web, Windows, macOS and Linux from a single code base. To navigate between the main screen and setting screen I used Navigator.of(context).pushReplacement( In the MainScreen, the user can push a button to open the Settings Screen, all the settings should of course be preserved at least during the application life time (I'm learning, so I don't care about how to properly store these preferences). Whenever you are going to code for building anything in Flutter, it will be inside a. ![]() Where MaterialsApp is provided by flutter, SettingsWidget is an Inherited widget that saves some user preferences, and MainScreen is the landing page of the application. One of the first concepts that you encounter in Flutter is Flutter widgets. MaterialApp -> SettingsWidget -> MainScreen. I have an application that is composed as follows:
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