介绍

这是Flet的页面布局介绍，来源于官网文档：Layout | Flet

img

页面布局

Page

Page是View控件的容器，Page实例和和根视图是在新用户会话启动时自动创建的。

属性

auto_scroll

当属性值为True，滚动条会自动滚动至页面尾部。

appbar

显示页面顶部导航栏。

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
import flet as ft

def main(page: ft.Page):
    def check_item_clicked(e):
        e.control.checked = not e.control.checked
        page.update()

    page.appbar = ft.AppBar(
        leading=ft.Icon(ft.icons.PALETTE),
        leading_width=40,
        title=ft.Text("AppBar Example"),
        center_title=False,
        bgcolor=ft.colors.SURFACE_VARIANT,
        actions=[
            ft.IconButton(ft.icons.WB_SUNNY_OUTLINED),
            ft.IconButton(ft.icons.FILTER_3),
            ft.PopupMenuButton(
                items=[
                    ft.PopupMenuItem(text="Item 1"),
                    ft.PopupMenuItem(),  # divider
                    ft.PopupMenuItem(
                        text="Checked item", checked=False, on_click=check_item_clicked
                    ),
                ]
            ),
        ],
    )
    page.add(ft.Text("Body!"))

ft.app(target=main)

img

appbar

显示页面顶部横幅。

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
import flet as ft

def main(page):
    def close_banner(e):
        page.banner.open = False
        page.update()

    page.banner = ft.Banner(
        bgcolor=ft.colors.AMBER_100,
        leading=ft.Icon(ft.icons.WARNING_AMBER_ROUNDED, color=ft.colors.AMBER, size=40),
        content=ft.Text(
            "Oops, there were some errors while trying to delete the file. What would you like me to do?"
        ),
        actions=[
            ft.TextButton("Retry", on_click=close_banner),
            ft.TextButton("Ignore", on_click=close_banner),
            ft.TextButton("Cancel", on_click=close_banner),
        ],
    )

    def show_banner_click(e):
        page.banner.open = True
        page.update()

    page.add(ft.ElevatedButton("Show Banner", on_click=show_banner_click))

ft.app(target=main)

img

banner

方法

事件

View

Container

Row

Column

Stack

ListView

ListTItle

GridView

ResponsiveRow

DataTable

Tabs

Card

Divider

VerticalDivider