View
View is the top most container for all other controls.
A root view is automatically created when a new user session started. From layout perspective the View represents a Column control, so it has a similar behavior and shares same properties.
Properties
appbar
A AppBar
control to display at the top of the Page.
auto_scroll
True
if scrollbar should automatically move its position to the end when children updated. Must be False
for scroll_to()
method to work.
bgcolor
Background color of the Page.
A color value could be a hex value in #ARGB
format (e.g. #FFCC0000
), #RGB
format (e.g. #CC0000
) or a named color from flet.colors
module.
controls
A list of Controls to display on the Page.
For example, to add a new control to a page:
- Python
page.controls.append(ft.Text("Hello!"))
page.update()
or to get the same result as above using page.add()
shortcut method:
- Python
page.add(ft.Text("Hello!"))
To remove the top most control on the page:
- Python
page.controls.pop()
page.update()
route
View's route - not currently used by Flet framework, but can be used in a user program to update page.route
when a view popped.
floating_action_button
A FloatingActionButton
control to display on top of Page content.
horizontal_alignment
How the child Controls should be placed horizontally.
Default value is CrossAxisAlignment.START
which means on the left side of the Page.
Property value is CrossAxisAlignment
enum with the following values:
START
(default)CENTER
END
STRETCH
BASELINE
on_scroll_interval
Throttling in milliseconds for on_scroll
event. Default is 10
.
padding
A space between page contents and its edges. Default value is 10 pixels from each side. To set zero padding:
- Python
page.padding = 0
page.update()
See Container.padding
for more information and possible values.
scroll
Enables a vertical scrolling for the Page to prevent its content overflow.
Property value is an optional ScrollMode
enum with None
as default.
Supported values:
None
(default) - the Row is non-scrollable and its content could overflow.AUTO
- scrolling is enabled and scroll bar is only shown when scrolling occurs.ADAPTIVE
- scrolling is enabled and scroll bar is always shown when running app as web or desktop.ALWAYS
- scrolling is enabled and scroll bar is always shown.HIDDEN
- scrolling is enabled, but scroll bar is always hidden.
spacing
Vertical spacing between controls on the Page. Default value is 10 virtual pixels. Spacing is applied only when alignment
is set to start
, end
or center
.
vertical_alignment
How the child Controls should be placed vertically.
For example, MainAxisAlignment.START
, the default, places the children at the top of a Page.
Property value is MainAxisAlignment
enum with the following values:
START
(default)END
CENTER
SPACE_BETWEEN
SPACE_AROUND
SPACE_EVENLY
Methods
scroll_to(offset, delta, key, duration, curve)
Moves scroll position to either absolute offset
, relative delta
or jump to the control with specified key
.
See Column.scroll_to()
for method details and examples.
Events
on_scroll
Fires when scroll position is changed by a user.
See Column.on_scroll
for event details and examples.