[Question] Unexpected Behavior of Date Picker When Packaging Flet Python App into APK.

[tanmay-bhatgare]

Question

I am experiencing an issue with the Flet Python GUI library when packaging my application into an APK file. Specifically, some windows, like the date picker, are behaving unexpectedly. The date picker, which works fine in the development environment, doesn’t open properly when running the APK on an Android device after packing using flet build apk.

Code sample

import datetime
import flet as ft


start_date = datetime.datetime(2024, 8, 24)


def is_special_holiday(check_date):
    delta_days = (check_date - start_date).days
    if delta_days % 3 == 0:
        return True
    return False


def main(page: ft.Page):
    page.vertical_alignment = ft.MainAxisAlignment.CENTER
    page.horizontal_alignment = ft.CrossAxisAlignment.CENTER
    output_text = ft.Text(
        value="",
        size=60,
        text_align=ft.TextAlign.CENTER
    )

    def handle_change(e):
        page.add(ft.Text(e.control.value))

        page.update()

    input_date_calendar = ft.DatePicker(
        first_date=datetime.datetime(year=2023, month=10, day=1),
        on_change=handle_change,
    )

    page.add(
        ft.ElevatedButton(
            "Pick Date",
            icon=ft.icons.CALENDAR_MONTH,
            on_click=lambda e: page.open(input_date_calendar),
        ),
        output_text,
    )


ft.app(target=main)

Error message

No response

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• I have searched for answers to my question both in the issues and in previous discussions.

[ndonkoHenri]

Please mention it here: #3867