page.window_maximized Error : 'bool' object is not callable

[bobwatcherx]

I use maximized and it works but it has to be clicked 2 times, and when it is clicked, it gets an error like this how to solve it?

error message:

raceback (most recent call last):
File "/usr/lib/python3.10/threading.py", line 1016, in _bootstrap_inner
self.run()
File "/usr/lib/python3.10/threading.py", line 953, in run
self._target(*self._args, **self._kwargs)
File "/home/minto/belajar/fletApp/fletfons/main.py", line 22, in
on_click=lambda _:page.window_maximized()),
TypeError: 'bool' object is not callable

[ndonkoHenri]

I don't really get your question.
Please paste some code for testing, then tell us what you expected to happen. 💁🏽‍♂️

[bobwatcherx]

I don't really get your question. Please paste some code for testing, then tell us what you expected to happen. 💁🏽‍♂️

this code

from flet import *
from flet import icons
 
def main(page:Page):
    page.window_max_height = 520
    page.window_max_width = 400
    page.window_frameless =True
    page.spacing = 0
    page.padding = 0 
    # DETECT WIDTH
    widthsrc = page.window_width
    page.add(
        ResponsiveRow([
             WindowDragArea(
                Container(
        width=widthsrc,
        bgcolor="blue",
        padding=15,
        content=Row([
 
    Text("MyHome",size=30,color="white"),
    Container(content=Row([
IconButton(icons.CHECK_BOX_OUTLINE_BLANK,icon_color="white",
        on_click=lambda e:page.window_maximized()),
    IconButton(icons.CLOSE,icon_color="white",
        on_click=lambda e:page.window_close()),
        ]))
            ],alignment="spaceBetween")
        ),
            )
            ])
        )
flet.app(target=main)

when I click maximize the error appears but when I double click it works I want to click once I can maximized?

[ndonkoHenri]

This doesn't show any error. Hope it works as expected.
(my IDE made changes to the style, not me haha)

from flet import *
from flet import icons


def main(page: Page):
    page.window_max_height = 520
    page.window_max_width = 400
    page.window_frameless = True
    page.spacing = 0
    page.padding = 0
    # DETECT WIDTH
    widthsrc = page.window_width

    def maximize_win(e):
        # docs: https://flet.dev/docs/controls/page#window_maximized
        page.window_maximized = True
        page.update()

    page.add(
        ResponsiveRow([
            WindowDragArea(
                Container(
                    width=widthsrc,
                    bgcolor="blue",
                    padding=15,
                    content=Row([
                        Text("MyHome", size=30, color="white"),
                        Container(content=Row([
                            IconButton(icons.CHECK_BOX_OUTLINE_BLANK, icon_color="white",
                                       on_click=maximize_win),
                            IconButton(icons.CLOSE, icon_color="white",
                                       on_click=lambda e: page.window_close()),
                        ]))
                    ], alignment="spaceBetween")
                ),
            )
        ])
    )


flet.app(target=main)

The error comes from here on_click=lambda e:page.window_maximized()!
window_maximized is a page property, and hence cant be called as we do with functions/callbacks.
Read on it here please: https://flet.dev/docs/controls/page#window_maximized