TileAffinity 继承自： Enum

Where to place a control in controls that use ListTile to position a control next to a label.

示例

import flet as ft


def showcase_card(affinity: ft.TileAffinity) -> ft.Container:
    tile = ft.ExpansionTile(
        title="Project settings",
        subtitle="Compare where the expand arrow appears.",
        affinity=affinity,
        expanded=True,
        controls=[
            ft.ListTile(title="General"),
            ft.ListTile(title="Notifications"),
        ],
    )

    return ft.Container(
        width=360,
        padding=12,
        border=ft.Border.all(1, ft.Colors.RED),
        border_radius=10,
        bgcolor=ft.Colors.SURFACE_CONTAINER_LOW,
        content=ft.Column(
            spacing=8,
            controls=[
                ft.Text(affinity.name, weight=ft.FontWeight.BOLD),
                tile,
            ],
        ),
    )


def main(page: ft.Page):
    page.horizontal_alignment = ft.CrossAxisAlignment.CENTER

    page.appbar = ft.AppBar(title="TileAffinity Showcase")
    page.add(
        ft.SafeArea(
            content=ft.Column(
                controls=[
                    ft.Text("Compare expand-arrow placement in ExpansionTile."),
                    ft.Row(
                        wrap=True,
                        spacing=12,
                        expand=True,
                        scroll=ft.ScrollMode.AUTO,
                        alignment=ft.MainAxisAlignment.CENTER,
                        controls=[
                            showcase_card(affinity) for affinity in ft.TileAffinity
                        ],
                    ),
                ],
            ),
        )
    )


if __name__ == "__main__":
    ft.run(main)

枚举值

名称	类型	默认值	说明
LEADING	—	'leading'	Positions the control on the leading edge, and the secondary control, if any, on the trailing edge.
TRAILING	—	'trailing'	Positions the control on the trailing edge, and the secondary control, if any, on the leading edge.
PLATFORM	—	'platform'	Positions the control relative to the text in the fashion that is typical for the current platform, and place the secondary control on the opposite side.