WindowEventType 继承自： Enum

原生桌面窗口事件的类型。

这些值通过 type 字段报告，并由 on_event 传递。事件是否可用取决于操作系统及底层窗口管理器。

示例

import flet as ft


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

    log = ft.Column(
        spacing=4,
        scroll=ft.ScrollMode.AUTO,
        height=220,
    )

    def add_log(message: str):
        log.controls.insert(0, ft.Text(message, size=12))
        if len(log.controls) > 20:
            log.controls.pop()
        log.update()

    def on_window_event(e: ft.WindowEvent):
        add_log(f"Received: {e.type.name}")

    page.window.on_event = on_window_event

    page.appbar = ft.AppBar(title="WindowEventType Showcase")
    page.add(
        ft.SafeArea(
            content=ft.Column(
                controls=[
                    ft.Text(
                        "Interact with the app window and watch incoming event types."
                    ),
                    ft.Text(
                        "Desktop only. Try focus, blur, resize, move, "
                        "minimize, maximize.",
                        size=11,
                    ),
                    ft.Row(
                        wrap=True,
                        spacing=8,
                        controls=[
                            ft.Container(
                                padding=ft.Padding.symmetric(horizontal=8, vertical=4),
                                border=ft.Border.all(1, ft.Colors.OUTLINE),
                                border_radius=12,
                                content=ft.Text(event_type.name, size=11),
                            )
                            for event_type in ft.WindowEventType
                        ],
                    ),
                    ft.Container(
                        width=720,
                        padding=12,
                        border=ft.Border.all(1, ft.Colors.RED),
                        border_radius=10,
                        bgcolor=ft.Colors.SURFACE_CONTAINER_LOW,
                        content=log,
                    ),
                ],
            ),
        )
    )


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

枚举值

名称	类型	默认值	说明
CLOSE	—	'close'	The OS requested the window to close.
FOCUS	—	'focus'	The window became focused.
BLUR	—	'blur'	The window lost focus.
HIDE	—	'hide'	The window became hidden.
SHOW	—	'show'	The window became visible.
MAXIMIZE	—	'maximize'	The window was maximized.
UNMAXIMIZE	—	'unmaximize'	The window exited maximized state.
MINIMIZE	—	'minimize'	The window was minimized.
RESTORE	—	'restore'	The window was restored from a minimized state.
RESIZE	—	'resize'	The window size is changing.
RESIZED	—	'resized'	The window size changed.
MOVE	—	'move'	The window position is changing.
MOVED	—	'moved'	The window position changed.
LEAVE_FULL_SCREEN	—	'leave-full-screen'	The window exited full-screen mode.
ENTER_FULL_SCREEN	—	'enter-full-screen'	The window entered full-screen mode.