消去可能なカルーセルビューパージャー

This is a view pager provides carousel effect and dismissal animation when page was removed.

Features

• Dismissal animation

Fade out & slide out	Fade out & scale	Fade out & circular hide

• Carousel effect

Horizontal	Vertical

Web Live demo

This an example app of this plugin of web version.

https://zyzdev.github.io/dismissible_carousel_viewpager

Usage

More detail of usage see /example app.

Base usage:

More detail, please run demo Base Usage at /example app.

DismissibleCarouselViewPager(
  viewportFraction: 0.5,
  besidePageScale: 0.8,
  itemBuilder: (context, index) {
    return Container(
      alignment: Alignment.center,
      color: index.isEven
      ? Colors.blueAccent.withOpacity(0.1)
      : Colors.deepPurpleAccent.withOpacity(0.1),
      child: Text("Item:$index"),
    ); 
  },
  itemCount: 100,
);

Dismissal animation

More detail please run demo Dismissal Usage at /example app.

dismissible_carousel_viewpager provides several kinds of animation(fade out, slide out, scale and circular hide) to make dismissal animation.

You can combine them to make your own style of dismissal animation.

Note

The dismissal animation base on AnimatedSwitcher.

Remember add key to the page widget that created by DismissibleCarouselViewPager.itemBuilder.

I recommend using the data that preparing to create page widget to create Key("$data"), ValueKey(data) or ObjectKey(data) for the page widget.

####example:

late final List<int> _item = List.generate(1000, (index) => index);

DismissibleCarouselViewPager(
  itemCount: _item.length,
  itemBuilder: (context, index) {
    Object data = _item[index];
    return Container(
      // must add key
      key: Key("$data"),
      //key: ValueKey(data),
      //key: ObjectKey(data),
      alignment: Alignment.center,
      color: Colors.grey.withOpacity(0.1),
      child: Column(
        mainAxisSize: MainAxisSize.min,
        children: [
        Expanded(
          child: Container(
            alignment: Alignment.bottomCenter,
            child: Text("Item:$data"),
          ),
        ),
        Expanded(
          child: IconButton(
            icon: const Icon(Icons.delete),
            onPressed: () {
                setState(() {
                  _item.remove(data);
                });
              },
            ),
          ),
        ],
      ),
    );
  },
  dismissalConfig: DismissalConfig(
    dismissalTypes: [
      DismissalType.fadeOut(),
      DismissalType.slideOut(),
    ],
  ),
);