VisibleWidgetExtension extension

Extension methods for Widget that provide convenient visibility control functionality.

This extension adds methods to conditionally show or hide widgets based on various conditions. Unlike opacity-based hiding, these methods completely remove the widget from the layout when hidden, replacing it with a SizedBox.shrink.

The extension provides both condition-based visibility (visibleIf, visibleIfNot) and null-checking visibility (visibleIfNull, visibleIfNotNull), plus convenience methods for creating empty space.

Example usage:

Text('Conditional content')
  .visibleIf(user.isLoggedIn)
  .visibleIfNotNull(user.name)

on

• Widget

Methods

boxShrink() → SizedBox

Available on Widget, provided by the VisibleWidgetExtension extension

Returns a SizedBox.shrink that takes up no space.

hide() → SizedBox

Available on Widget, provided by the VisibleWidgetExtension extension

Hides the widget by returning a SizedBox.shrink.

invisible() → SizedBox

Available on Widget, provided by the VisibleWidgetExtension extension

Makes the widget invisible by returning a SizedBox.shrink.

visibleIf(bool condition) → Widget

Available on Widget, provided by the VisibleWidgetExtension extension

Shows the widget if the condition is true, otherwise returns an empty SizedBox.

visibleIfNot(bool condition) → Widget

Available on Widget, provided by the VisibleWidgetExtension extension

Shows the widget if the condition is false, otherwise returns an empty SizedBox.

visibleIfNotNull(Object? value) → Widget

Available on Widget, provided by the VisibleWidgetExtension extension

Shows the widget if the value is not null, otherwise returns an empty SizedBox.

visibleIfNull(Object? value) → Widget

Available on Widget, provided by the VisibleWidgetExtension extension

Shows the widget if the value is null, otherwise returns an empty SizedBox.