Flutter UI

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.

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.

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.

mainAxisAlignment is how items are aligned on that axis. crossAxisAlignment is how items are aligned on the other axis .30 Eki 2020

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.