Key points. Flutter maintains three trees in parallel: the Widget , Element and RenderObject trees. A Flutter app is performant because it maintains its structure and only updates the widgets that need redrawing.
Read moreWhat is Flutter tree?
The widget tree is how developers create their user interface ; developers position widgets within each other to build simple and complex layouts. Since just about everything in the Flutter framework is a widget, and as they start nesting them, the code can become harder to follow.
Read moreWhat is widget tree and element tree in Flutter?
So that means that the widget tree has all the widget configuration and the element tree has all rendered widgets on the screen . There is one more tree named render tree, but the user doesn’t have to interact with it. Render tree is basically a low-level layout, painting system that inherits from the render objects.14 May 2021
Read moreWhat are the trees available in Flutter?
Under the hood, Flutter uses 3 instances of trees. Yes, you guessed it, these are: Widget tree, Element tree and Render Object tree . Each one of them has slightly different purposes, but combined together they allow for fast UI rendering and great performance.
Read moreHow do you find the widget tree Flutter?
Inspecting a widget Click any widget in the app’s UI ; this selects the widget on the app’s screen, and scrolls the widget tree to the corresponding node. Toggle the Select Widget Mode button again to exit widget select mode. When debugging layout issues, the key fields to look at are the size and constraints fields.
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