UnderlineTabIndicator

Properties

• border_radius - The radius of the indicator's corners.
• border_side - The color and weight of the horizontal line drawn below the selected tab.
• insets - Locates the selected tab's underline relative to the tab's boundary.

Properties

buildborder_radiusclass-attributeinstance-attribute

border_radius: BorderRadiusValue | None = None

The radius of the indicator's corners.

If this value is not None, a rounded rectangular tab indicator is drawn, otherwise rectangular tab indicator is drawn.

buildborder_sideclass-attributeinstance-attribute

border_side: BorderSide = field(
    default_factory=lambda: BorderSide(
        width=2.0, color=Colors.WHITE
    )
)

The color and weight of the horizontal line drawn below the selected tab.

buildinsetsclass-attributeinstance-attribute

insets: PaddingValue = field(
    default_factory=lambda: Padding.zero()
)

Locates the selected tab's underline relative to the tab's boundary.

The TabBar.indicator_size property can be used to define the tab indicator's bounds in terms of its (centered) tab control with TabBarIndicatorSize.LABEL, or the entire tab with TabBarIndicatorSize.TAB.