ActivityIndicator

LinearProgressIndicator

A widget that shows progress along a line.

value

The value of this progress indicator.

RefreshControl

RefreshIndicator

A widget that supports the Material “swipe to refresh” idiom.

color

The progress indicator’s foreground color.

onRefresh

A function that’s called when a user drags the refresh indicator far enough to demonstrate that they want the app to refresh.

View

Container

A widget that surrounds a child widget.

View

Column

A widget that displays its children in a vertical array.

View

Row

A widget that displays its children in a horizontal array.

View

Center

A widget that centers its child within itself.