--- title: Easy dialog management in Flutter published: true description: A flexible and centralized way of managing dialogs tags: flutter, dialog, alerts, dialogcontroller //cover_image: https://direct_url_to_image.jpg --- Having worked with dialogs for a while I have encountered multiple scenarios where I wish I could control dialogs programatically through a controller, similar to how other standard widgets like textfields or scrollviews can be controlled. It would be cool if we could toggle the visibility of a dialog or group of dialogs through some kind of dialog controller. Having this would allow to define and manage dialogs in a centralized place and hook statemangement to perform the side effect of displaying dialogs. ## Solution Since we can't modify the API of standard widgets like Alert and creating subclasses for all types of alerts would be cumbersome. The solution proposed here won't look identical to the API you would get with `TextField` where you can set a controller property on Widget itself. So let's start by laying out some the characteristics that our dialog controller should have, here are the main ones: - Don't disable normal dialog interactions like closing from buttons. - Can return data from dialog through the controller or by popping with value - Can show and hide multiple times - Showing a new dialog will hide the previous ### Brief overview I'll just mention briefly the classes involved and what they do before showing the code. - `DialogController`: Registers a single dialog and gives the ability to toggle its visibility. - `StyledDialogController

dialogcontroller

Easy dialog management in Flutter

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