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.
Read moreWhat are Flutter containers?
Container class in flutter is a convenience widget that combines common painting, positioning, and sizing of widgets . A Container class can be used to store one or more widgets and position it on the screen according to our convenience. Basically a container is like a box to store contents.
Read moreWhat is scaffold in Flutter?
Scaffold is a class in flutter which provides many widgets or we can say APIs like Drawer, SnackBar, BottomNavigationBar, FloatingActionButton, AppBar etc. Scaffold will expand or occupy the whole device screen. It will occupy the available space.
Read moreWhat is crossAxisAlignment Flutter?
The crossAxisAlignment property determines how Row and Column can position their children on their cross axes . A Row ‘s cross axis is vertical, and a Column ‘s cross axis is horizontal. The crossAxisAlignment property has five possible values: CrossAxisAlignment.
Read moreHow do you use MainAxisAlignment?
MainAxisAlignment Propery The positioning of the child widgets on the main axis . Place the children as close to the start of the main axis as possible. Place the children as close to the middle of the main axis as possible. Place the children as close to the end of the main axis as possible.
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