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Package for creating expansion animations easier.

flutter_expandable #

This is a package that allows widget expansion no matter where the trigger and the expandable widget are in the UI. This package was born when a ExpansionTile was not enough for our requeriments.

Demo #

Demo

Getting Started #

Import the package to pubspec.yaml file, and you're ready to go. Just wrap the widgets that will trigger expansion with Expander (they should be given as triggerWidgets property) and provide an AnimationController.

Then, wrap the widget that will be expanded with _Expandable and provide the same controller that you provided to the Expander, provide a height and you're done! Once you tap the expander, the expandable will animate vertically or horizontally (depending on the properties you've set).

Every Expandable widget which has the same controller as the Expander will perform the expansion animation.

Column(
    children:[
        Expander(
            rotateArrow: true,
            rotatingArrowSize: 40,
            arrowRotationDuration: const Duration(milliseconds: 300),
            triggerWidgets: [
                Container(
                width: 300,
                child: Text(
                    'This is the widget that will trigger the expansion of the other ets',
                    maxLines: 2,
                ),
                )
            ],
            controller: controller,
        ),
        Expandable(
            height: 100,//height is mandatory
            controller: controller,//controller is mandatory
            duration: const Duration(seconds: 1),
            child: Container(//this widget will expand vertically (default)
                height: 100,
                color: Colors.green,
                child: Text(
                    'This should only expand vertically',
                    style: TextStyle(color: Colors.white),
                ),
            ),
        ),
    ]
),

Check out our example for more information

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Package for creating expansion animations easier.

Homepage

Documentation

API reference

License

Icon for licenses.BSD-3-Clause (LICENSE)

Dependencies

flutter

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