Skip to main content

PermissionHandler

PermissionHandler can check and/or request permissions from the running device for access to various components. Works on Windows, iOS, Android and web. Based on the permission_handler Dart/Flutter package.

PermissionHandler control is non-visual and should be added to page.overlay list.

Packaging

To build your Flet app that uses PermissionHandler control, add --include-packages flet_permission_handler to flet build command, for example:

flet build apk --include-packages flet_permission_handler

Examples​

Basic Example​

import flet as ft


def main(page: ft.Page):
    page.scroll = ft.ScrollMode.ADAPTIVE
    page.appbar = ft.AppBar(title=ft.Text("PermissionHandler Tests"))
    ph = ft.PermissionHandler()
    page.overlay.append(ph)

    def check_permission(e):
        o = ph.check_permission(e.control.data)
        page.add(ft.Text(f"Checked {e.control.data.name}: {o}"))

    def request_permission(e):
        o = ph.request_permission(e.control.data)
        page.add(ft.Text(f"Requested {e.control.data.name}: {o}"))

    def open_app_settings(e):
        o = ph.open_app_settings()
        page.add(ft.Text(f"App Settings: {o}"))

    page.add(
        ft.OutlinedButton(
            "Check Microphone Permission",
            data=ft.PermissionType.MICROPHONE,
            on_click=check_permission,
        ),
        ft.OutlinedButton(
            "Request Microphone Permission",
            data=ft.PermissionType.MICROPHONE,
            on_click=request_permission,
        ),
        ft.OutlinedButton(
            "Open App Settings",
            on_click=open_app_settings,
        ),
    )


ft.app(main)

Methods​

check_permission(of: PermissionType)​

Checks the status of the specified PermissionType.

Returns an instance of type PermissionStatus.

open_app_settings()​

Opens the device's settings. Before calling this method, you usually want to briefly remind the user of which permission is needed and how/where precisely it is to be enabled.

Returns a boolean value: True if the device's settings were opened successfully, False otherwise.

request_permission(of: PermissionType)​

Requests the device for access to the specified PermissionType from the user.

Returns an instance of type PermissionStatus.