Chip
Chips are compact elements that represent an attribute, text, entity, or action.
Chips help people enter information, make selections, filter content, or trigger actions. Use chips to show options for a specific context.
Examples
Assist chips
Assist chips are chips with leading
icon and on_click
event specified. They represent smart or automated actions that appear dynamically and contextually in a UI.
An alternative to assist chips are buttons, which should appear persistently and consistently.
- Python
import flet as ft
def main(page: ft.Page):
def save_to_favorites_clicked(e):
e.control.label.value = "Saved to favorites"
e.control.leading = ft.Icon(ft.icons.FAVORITE_OUTLINED)
e.control.disabled = True
page.update()
def open_google_maps(e):
page.launch_url("https://maps.google.com")
page.update()
save_to_favourites = ft.Chip(
label=ft.Text("Save to favourites"),
leading=ft.Icon(ft.icons.FAVORITE_BORDER_OUTLINED),
bgcolor=ft.colors.GREEN_200,
disabled_color=ft.colors.GREEN_100,
autofocus=True,
on_click=save_to_favorites_clicked,
)
open_in_maps = ft.Chip(
label=ft.Text("9 min walk"),
leading=ft.Icon(ft.icons.MAP_SHARP),
bgcolor=ft.colors.GREEN_200,
on_click=open_google_maps,
)
page.add(ft.Row([save_to_favourites, open_in_maps]))
ft.app(main)
Filter chips
Filter chips are chips with on_select
event specified. They use tags or descriptive words provided in the label
to filter content. They can be a good alternative to switches or checkboxes.
- Python
import flet as ft
def main(page: ft.Page):
def amenity_selected(e):
page.update()
title = ft.Row([ft.Icon(ft.icons.HOTEL_CLASS), ft.Text("Amenities")])
amenities = ["Washer / Dryer", "Ramp access", "Dogs OK", "Cats OK", "Smoke-free"]
amenity_chips = []
for amenity in amenities:
amenity_chips.append(
ft.Chip(
label=ft.Text(amenity),
bgcolor=ft.colors.GREEN_200,
disabled_color=ft.colors.GREEN_100,
autofocus=True,
on_select=amenity_selected,
)
)
page.add(title, ft.Row(amenity_chips))
ft.app(main)
Properties
autofocus
True if the control will be selected as the initial focus. If there is more than one control on a page with autofocus set, then the first one added to the page will get focus.
bgcolor
Color to be used for the unselected, enabled chip's background.
border_side
Defines the color and weight of the chip's outline. Value is the instance of BorderSide
class.
check_color
Color of the chip's check mark when a check mark is visible.
click_elevation
A non-negative value which defines the elevation of the chip when clicked/pressed.
Defaults to 8.0
.
clip_behavior
The content will be clipped (or not) according to this option.
Value is of type ClipBehavior
and defaults to ClipBehavior.NONE
.
color
The color that fills the chip in various ControlState
s.
delete_icon_tooltip
The text to be used for the chip's delete_icon
tooltip. If not provided or provided with an empty string, the tooltip of the delete icon will not be displayed.
delete_icon
A Control
to display to the right of the chip's label
in case on_delete
event is specified.
Defaults to an Icon(icons.CANCEL)
.
delete_icon_color
Color of the delete_icon
.
disabled_color
The color used for the chip's background if it is disabled.
elevation
A non-negative value which defines the size of the shadow below the chip.
Defaults to 0
.
label
A Control
that represents primary content of the chip, typically a Text
. Label is a required
property.
label_padding
Padding around the label
.
The value is an instance of padding.Padding
class or a number.
By default, this is 4 logical pixels at the beginning and the end of the label, and zero on top and bottom.
label_style
The style to be applied to the chip's label
.
Value is of type TextStyle
.
leading
A Control
to display to the left of the chip's label
.
Typically the leading control is an Icon
or a CircleAvatar
.
padding
The padding between the label
and the outside shape.
The value is an instance of Padding
class or a number.
By default, this is 4 logical pixels on all sides.
selected
If on_select
event is specified, selected
property is used to determine whether the chip is selected or not.
Defaults to False
.
selected_color
The color used for the chip's background when it is selected.
selected_shadow_color
The color used for the chip's background when the elevation is greater than 0
and the chip
is selected.
shadow_color
The color used for the chip's background when the elevation is greater than 0
and the chip
is not selected.
shape
The shape of the border around the chip.
The value is an instance of OutlinedBorder
class.
The default shape is a StadiumBorder
.
show_checkmark
If on_select
event is specified and chip is selected, show_checkmark
is used to determine whether or not to show a
checkmark.
Defaults to True
.
surface_tint_color
The color used as an overlay on bgcolor
to indicate elevation.
visual_density
Defines how compact the control's layout will be.
Value is of type ThemeVisualDensity
.
Events
on_blur
Fires when the control has lost focus.
on_click
Fires when the user clicks on the chip. Cannot be specified together with on_select
event.
on_delete
Fires when the user clicks on the delete_icon
.
on_focus
Fires when the control has received focus.
on_select
Fires when the user clicks on the chip. Changes selected
property to the opposite value. Cannot be specified together with on_click
event.