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🔽 Expandable Tile (Flutter)

A Flutter package that helps you expand or collapse widgets to show/hide content with customizable animations. It supports both horizontal and vertical directions and allows flexible customization to fit different UI needs.

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🎬 Demo Video

Text Title Demo	Image Title Demo	Custom Title Demo

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📱 Use Cases

• Expandable sections in forms or FAQs.
• Slide-in side menus or horizontal drawers.
• Toggle content areas with smooth transitions.
• Build custom accordion or collapsible lists.

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✨ Features

• Show/hide widgets with various animation styles.
• Supports vertical and horizontal expansion.
• Support some animation types.
• Support change color, style title
• Change width title or use fit width base on length title
• Easily customizable animation types.
• Clean API for integration in different widget trees.
• Lightweight and fast.

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🏗️ Architecture & Technologies

Component	Description
ExpandableTileView	Main widget to expand/collapse content with animation
ExpandableAnimation	Enum to select animation type (e.g., size, fade, scale, def)
AxisExpand	Enum to control direction of expansion (horizontal or vertical)
ExpandTileController	Main controller to control state of expand (isExpand,axis,...)

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🧾 Constructor Parameters

Field	Type	Default	Description
title(title)	String	required	The string displayed as the expandable title's widget.
src(image)	String	required	The link to your image (asset, local file, online image)
title(custom)	Widget	required	The widget displayed as the expandable tile's title.
child	Widget	required	The content widget shown when expanded.
width(title)	double?	null	The width of the entire tile. If null, it adapts to the content.
ratio(custom)	Ratio?	Ratio(5, 5)	the ratio of left and right widgets when posHorizontal is true.
axis	AxisExpand	AxisExpand.vertical	The direction of expansion: vertical or horizontal.
titleBGColor	Color?	null	Background color for the title section.
titleTextStyle	TextStyle?	null	Text style for the title (if it's a Text widget).
widthFill	bool	true	If true, the total width of the ExpandableTile will fit title and child
posHorizontal	bool	false	Applies only if axis is horizontal. If true, title on left, child on right.
showIcon	bool	true	If false, the expandable title show without icon dropdown
posHorizontal	bool	false	Applies only if axis is horizontal. If true, title on left, child on right.

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🚀 Usage

✅ Basic Usage

📏 Default Size Animation

Child Horizontally (Size animation)

ExpandableTileView.animatedDef(
  title: "Animation default horizontal",
  axis: AxisExpand.horizontal,
  posHorizontal: true,
  child: Text("This is demo for expand text vertical. The Child is Text."),
)

Child Vertically (Size animation)

Title Text

ExpandableTileView.animatedDef(
  title: "Animation default horizontal",
  axis: AxisExpand.horizontal,
  child: Text("This is demo for expand text vertical. The Child is Text."),
)

Title Image

ExpandableImageView.animatedDef(
  src: "https://www.centrale-canine.fr/sites/default/files/2024-11/Fiche%20de%20race%20banni%C3%A8re%20corgi%20pembroke.jpg",
  child: Text("This is demo for expand image with default animation. The Child is Text"),
)

Title Custom

ExpandableCustomView.animatedDef(
    title: const Row(
        mainAxisAlignment: MainAxisAlignment.spaceBetween,
        children: [
            Text("Custom Title", style: TextStyle(fontSize: 14, color: Colors.redAccent),),
            Text("Default animation", style: TextStyle(fontSize: 14, color: Colors.green),),
            Icon(Icons.check, size: 27, color: Colors.redAccent),
        ],
    )
  child: Text("This is demo for expand custom with fade animation. The Child is Text"),
)

🌫️ Fade Animation

Title Text

ExpandableTileView.animatedFade(
  title: "Animation fade",
  child: Text("Fading in and out!"),
)

Title Image

ExpandableImageView.animatedFade(
  src: "https://file.hstatic.net/1000292100/article/61312315_440746569804333_4727353524977926144_n_9a585e47ace64345af4b2dd9bc1f45bb.jpg",
  child: Text("This is demo for expand image with fade animation. The Child is Text"),
)

Title Custom

  ExpandableCustomView.animatedFade(
     title: const Row(
      mainAxisAlignment: MainAxisAlignment.spaceBetween,
      children: [
        Text("Custom Title", style: TextStyle(fontSize: 14, color: Colors.redAccent),),
        Text("Fade animation", style: TextStyle(fontSize: 14, color: Colors.green),),
        Icon(Icons.check, size: 27, color: Colors.redAccent),
      ],
    ) ,
    posHorizontal: true,  
    ratio: const Ratio(7,3),  
    child: Text("This is demo for expand custom with fade animation. The Child is Text"),
  )

🔍 Scale Animation

Title Text

ExpandableTileView.animatedScale(
  title: "Animation scale",
  child: Text("Scaling animation!"),
)

Title Image

ExpandableImageView.animatedScale(
  src: "https://file.hstatic.net/1000292100/file/img_1907_grande_e05accd5a03247069db4f3169cfb8b11_grande.jpg",
  child: Text("This is demo for expand image with scale animation. The Child is Text"),
)

Title Custom

  ExpandableCustomView.animatedScale(
      title: const Row(
          mainAxisAlignment: MainAxisAlignment.spaceBetween,
          children: [
          Text("Custom Title", style: TextStyle(fontSize: 14, color: Colors.redAccent),),
          Text("Scale animation", style: TextStyle(fontSize: 14, color: Colors.green),),
          Icon(Icons.check, size: 27, color: Colors.redAccent),
      ],
  ),
  child: Text("This is demo for expand custom with scale animation. The Child is Text"),
)

None Animation

ExpandableTileView.noneAnimation(
  title: "No animation",
  child: Text("Scaling animation!"),
)

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⚙️ Setup

To install the expandable_tile package, add the following to your pubspec.yaml file:

dependencies:
  expandable_tile: ^1.0.2

📦 Supported SDKs

• Flutter: Stable channel
• Android: SDK 21+
• iOS: iOS 9+

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🙌 Contributions

Feel free to open issues or pull requests on GitHub.

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📄 License

MIT License. See LICENSE for details.