AnimatedContainer constructor

AnimatedContainer({
  1. Key? key,
  2. AlignmentGeometry? alignment,
  3. EdgeInsetsGeometry? padding,
  4. Color? color,
  5. Decoration? decoration,
  6. Decoration? foregroundDecoration,
  7. double? width,
  8. double? height,
  9. BoxConstraints? constraints,
  10. EdgeInsetsGeometry? margin,
  11. Matrix4? transform,
  12. AlignmentGeometry? transformAlignment,
  13. Widget? child,
  14. Clip clipBehavior = Clip.none,
  15. Curve curve = Curves.linear,
  16. required Duration duration,
  17. void onEnd()?,
})

Creates a container that animates its parameters implicitly.

Implementation

AnimatedContainer(
    {super.key,
    this.alignment,
    this.padding,
    Color? color,
    Decoration? decoration,
    this.foregroundDecoration,
    double? width,
    double? height,
    BoxConstraints? constraints,
    this.margin,
    this.transform,
    this.transformAlignment,
    this.child,
    this.clipBehavior = Clip.none,
    this.curve = Curves.linear,
    required this.duration,
    this.onEnd})
    : assert(margin == null || margin.isNonNegative),
      assert(padding == null || padding.isNonNegative),
      assert(decoration == null || decoration.debugAssertIsValid()),
      assert(constraints == null || constraints.debugAssertIsValid()),
      assert(
          color == null || decoration == null,
          'Cannot provide both a color and a decoration\n'
          'The color argument is just a shorthand for "decoration: BoxDecoration(color: color)".'),
      decoration =
          decoration ?? (color != null ? BoxDecoration(color: color) : null),
      constraints = (width != null || height != null)
          ? constraints?.tighten(width: width, height: height) ??
              BoxConstraints.tightFor(width: width, height: height)
          : constraints;