Pull-Down Button from iOS 14 for Flutter
pull_down_button is an attempt to bring Pop-Up and Pull-Down Buttons from iOS 14+ to Flutter with some additional customisation options.
This package only tries to visually replicate the native counterpart, some parts might be somewhat different.
Contents:
PullDownButton
PullDownButton
is a widget used to show the pull-down menu.
While the pull-down menu is opened, the button from where this menu was called will have lower opacity.
PullDownButton(
itemBuilder: (context) => [
PullDownMenuItem(
title: 'Menu item',
onTap: () {},
),
const PullDownMenuDivider(),
PullDownMenuItem(
title: 'Menu item 2',
onTap: () {},
),
],
buttonBuilder: (context, showMenu) => CupertinoButton(
onPressed: showMenu,
padding: EdgeInsets.zero,
child: const Icon(CupertinoIcons.ellipsis_circle),
),
);
Properties table
Properties | Description |
---|---|
itemBuilder | Called when the button is pressed to create the items to show in the menu. |
buttonBuilder | Builder that provides BuildContext as well as showMenu function to pass to any custom button widget. |
onCanceled | Called when the user dismisses the pull-down menu. |
position | Whether the pull-down menu is positioned above, over, or under the pull-down menu button. |
itemsOrder | Whether the pull-down menu orders its items from itemBuilder in downward or upwards way. |
buttonAnchor | Whether the pull-down menu is anchored to the center, left, or right side of buttonBuilder . |
menuOffset | Additional offset for the pull-down menu if the menu's desired position. |
scrollController | A custom menu scroll controller. |
animationBuilder | Custom animation for buttonBuilder when the pull-down menu is opening or closing. |
routeTheme | The theme of the pull-down menu box. |
animationAlignmentOverride | Custom animation alignment used to override default one. |
useRootNavigator | Whether to use the root navigator to show the pull-down menu. |
routeSettings | Optional route settings for the pull-down menu. |
PullDownMenuItem
PullDownMenuItem
is a widget used to create cupertino-style pull-down menu item.
PullDownMenuItem(
onTap: () {},
title: 'Pin',
icon: CupertinoIcons.pin,
),
PullDownMenuItem(
title: 'Forward',
subtitle: 'Share in different channel',
onTap: () {},
icon: CupertinoIcons.arrowshape_turn_up_right,
),
PullDownMenuItem(
onTap: () {},
title: 'Delete',
isDestructive: true,
icon: CupertinoIcons.delete,
),
Properties table
Properties | Description |
---|---|
onTap | The action this item represents. |
tapHandler | Handler to resolve how onTap callback is used. |
enabled | Whether the user is permitted to tap this item. |
title | Title of this PullDownMenuItem . |
subtitle | Subtitle of this PullDownMenuItem . |
icon | Trailing icon of this PullDownMenuItem . |
iconColor | Trailing icon's color. |
iconWidget | Custom trailing widget. |
isDestructive | Whether this item represents destructive action. |
itemTheme | The theme of the menu item. |
PullDownMenuItem.selectable
PullDownMenuItem.selectable
is a widget used to create cupertino-style pull-down menu item with selection state.
PullDownMenuItem.selectable(
onTap: () {},
selected: true,
title: 'Green',
icon: CupertinoIcons.circle_fill,
iconColor: CupertinoColors.systemGreen.resolveFrom(context),
),
PullDownMenuItem.selectable(
onTap: () {},
selected: false,
title: 'Orange',
icon: CupertinoIcons.circle_fill,
iconColor: CupertinoColors.systemOrange.resolveFrom(context),
),
PullDownMenuItem.selectable(
onTap: () {},
selected: false,
title: 'Indigo',
icon: CupertinoIcons.circle_fill,
iconColor: CupertinoColors.systemIndigo.resolveFrom(context),
),
Properties table
PullDownMenuItem.selectable
uses all of PullDownMenuItem
properties as well as a boolean value selected
, to indicate whether the menu item is selected or not.
PullDownMenuActionsRow
PullDownMenuActionsRow
is a widget used to create cupertino-style pull-down menu row of actions
(small or medium size).
PullDownMenuActionsRow.medium(
items: [
PullDownMenuItem(
onTap: () {},
title: 'Reply',
icon: CupertinoIcons.arrowshape_turn_up_left,
),
PullDownMenuItem(
onTap: () {},
title: 'Copy',
icon: CupertinoIcons.doc_on_doc,
),
PullDownMenuItem(
onTap: () {},
title: 'Edit',
icon: CupertinoIcons.pencil,
),
],
),
PullDownMenuItem
is used to populate PullDownMenuActionsRow.items
.
Depending on PullDownMenuActionsRow
s size, PullDownMenuItem
might be either icon only or icon and title in a vertical array.
Properties | Description |
---|---|
items | List of PullDownMenuItem . |
PullDownMenuDivider
PullDownMenuDivider.large
is a widget used to create cupertino-style pull-down menu large divider.
There is no need in adding PullDownMenuDivider
by hand, pull-down menu does it automatically!
PullDownMenuTitle
PullDownMenuTitle
is a widget used to create cupertino-style pull-down menu title (usually at the top of menu).
const PullDownMenuTitle(title: Text('Menu title')),
Properties | Description |
---|---|
title | Title widget. |
titleStyle | Title widget text style. |
PullDownMenuHeader
PullDownMenuHeader
is a widget used to create cupertino-style pull-down menu document header (usually at the top of menu).
PullDownMenuHeader(
leading: ColoredBox(
color: CupertinoColors.systemBlue.resolveFrom(context),
),
title: 'Profile',
subtitle: 'Tap to open',
onTap: () {},
icon: CupertinoIcons.profile_circled,
),
Properties table
Properties | Description |
---|---|
onTap | The action this header represents. |
tapHandler | Handler to resolve how onTap callback is used. |
leading | Leading widget of this PullDownMenuItem . |
leadingBuilder | Custom leading widget of PullDownMenuHeader . |
title | Title of this PullDownMenuItem . |
subtitle | Subtitle of this PullDownMenuItem . |
itemTheme | The theme of the menu item. |
icon | Trailing icon of this PullDownMenuItem . |
iconWidget | Custom trailing widget. |
showPullDownMenu
An alternative way of displaying pull-down menu via a function call.
onPressed: () async {
/* get tap position and / or do something before opening menu */
await showPullDownMenu(
context: context,
items: [...],
position: position,
);
}
Properties table
Properties | Description |
---|---|
context | For looking up Navigator for the menu. |
items | List of PullDownMenuEntry widgets. |
position | The Rect is used to align the top of the menu with the top of the position rectangle. |
itemsOrder | Whether the popup menu orders its items from itemBuilder in a downward or upwards way. |
menuOffset | Additional offset for the pull-down menu if the menu's desired position. |
scrollController | A custom menu scroll controller. |
onCanceled | Called when the user dismisses the pull-down menu. |
routeTheme | The theme of the pull-down menu box. |
useRootNavigator | Whether to use the root navigator to show the pull-down menu. |
routeSettings | Optional route settings for the pull-down menu. |
PullDownMenu
Another alternative way of displaying the pull-down menu as a simple widget, with no animations or adding routes to the navigation stack.
PullDownMenu(
items: [
PullDownMenuItem(
title: 'Menu item',
onTap: () {},
),
const PullDownMenuDivider(),
PullDownMenuItem(
title: 'Menu item 2',
onTap: () {},
),
]
),
Properties table
Properties | Description |
---|---|
items | List of PullDownMenuEntry widgets. |
scrollController | A custom menu scroll controller. |
routeTheme | The theme of pull-down menu box. |
Theming
This package also provides additional customization. By default, the iOS 16 theme is used, but it is also possible to override defaults with widget properties (see above) or with PullDownButtonTheme
theme extension.
Light Theme | Dark Theme |
---|---|
PullDownButtonTheme
To use PullDownButtonTheme
define it in your ThemeData
as follows:
ThemeData(
...,
extensions: [
PullDownButtonTheme(
routeTheme: PullDownMenuRouteTheme(
backgroundColor: Colors.grey,
),
itemTheme: PullDownMenuItemTheme(
destructiveColor: Colors.red,
),
dividerTheme: PullDownMenuDividerTheme(
dividerColor: Colors.black,
),
),
],
),
PullDownButtonTheme
uses a set of sub-themes (for items, dividers, the menu itself, etc.) to define the needed theme. See below for every property each sub-theme provides.
PullDownButtonTheme
Properties | Description |
---|---|
routeTheme | Menu container theme (PullDownMenuRouteTheme ). |
itemTheme | PullDownMenuItem theme (PullDownMenuItemTheme ). |
dividerTheme | PullDownMenuDivider theme (PullDownMenuDividerTheme ). |
titleTheme | PullDownMenuTitle theme (PullDownMenuTitleTheme ). |
PullDownMenuRouteTheme
Properties | Description |
---|---|
backgroundColor | The background color of the pull-down menu. |
borderRadius | The border radius of the pull-down menu. |
shadow | The pull-down menu shadow. |
width | Pull-down menu width. |
accessibilityWidth | Pull-down menu accessibility width. |
backgroundColor
usually has opacity in the range of 0.7-0.8 so that menu has a blur effect.
If backgroundColor
is fully opaque (opacity set to 1), no blur effect will be applied.
PullDownMenuItemTheme
Properties | Description |
---|---|
destructiveColor | Color for destructive action. |
checkmark | Checkmark icon. |
textStyle | PullDownMenuItem text style. |
subtitleStyle | PullDownMenuItem subtitle text style. |
iconActionTextStyle | PullDownMenuItem text style inside of PullDownMenuActionsRow . |
onHoverBackgroundColor | On hover color of PullDownMenuItem . |
onPressedBackgroundColor | On pressed color of PullDownMenuItem . |
onHoverTextColor | On hover color of text of PullDownMenuItem . |
PullDownMenuDividerTheme
Properties | Description |
---|---|
dividerColor | Small divider color. |
largeDividerColor | Large divider color. |
largeDividerColor
is usually lighter than dividerColor
.
PullDownMenuTitleTheme
Properties | Description |
---|---|
style | PullDownMenuTitle text style. |
PullDownButtonInheritedTheme
If defining PullDownButtonTheme
in ThemeData
is not possible, for example, if you are using CupertinoApp
, you can use PullDownButtonInheritedTheme
:
CupertinoApp(
builder: (context, child) => PullDownButtonInheritedTheme(
data: const PullDownButtonTheme(
...
),
child: child!,
),
home: ...,
),
Here is an example of using PullDownButtonTheme
with Material 3 color scheme colors
(generated from CupertinoColors.systemBlue
with ColorScheme.fromSeed
) from Material 3 Menu specs.
Custom Material 3 light theme | Custom Material 3 dark theme |
---|---|
Contributions
Feel free to contribute to this project.
Please file feature requests and bugs at the issue tracker.
If you fixed a bug or implemented a feature by yourself, feel free to send a pull request.
Libraries
- Flutter widgets implementing the iOS Pull-Down menu.