public override Widget build(BuildContext context)
{
BottomAppBarTheme babTheme = BottomAppBarTheme.of(context);
NotchedShape notchedShape = widget.shape ?? babTheme?.shape;
CustomClipper <Path> clipper = notchedShape != null
? (CustomClipper <Path>) new _BottomAppBarClipper(
geometry: geometryListenable,
shape: notchedShape,
notchMargin: widget.notchMargin
)
: new ShapeBorderClipper(shape: new RoundedRectangleBorder());
float elevation = widget.elevation ?? babTheme?.elevation ?? _defaultElevation;
Color color = widget.color ?? babTheme?.color ?? Theme.of(context).bottomAppBarColor;
Color effectiveColor = ElevationOverlay.applyOverlay(context, color, elevation);
return(new PhysicalShape(
clipper: clipper,
elevation: elevation,
color: effectiveColor,
clipBehavior: widget.clipBehavior,
child: new Material(
type: MaterialType.transparency,
child: widget.child == null
? null
: new SafeArea(child: widget.child)
)
));
}
public static BottomAppBarTheme lerp(BottomAppBarTheme a, BottomAppBarTheme b, float t)
{
return(new BottomAppBarTheme(
color: Color.lerp(a?.color, b?.color, t),
elevation: MathUtils.lerpNullableFloat(a?.elevation, b?.elevation, t),
shape: t < 0.5f ? a?.shape : b?.shape
));
}
public bool Equals(BottomAppBarTheme other)
{
return(other.color == color &&
other.elevation == elevation &&
other.shape == shape);
}
