Describe your problem:
Line 466, if parameters is None, the len() statement will fail.

Reproducing the problem:
Code..

Media (optional):
Screenshot or video..

flet_navigator version, flet version, OS:
FletNavigator version, Flet Version, OS..

Additional:
...

Describe your problem:
It seems this code doesn't work anymore. I don't know why?
error message:
db= pg.arguments[0]
~~~~~~~~~~~~^^^
TypeError: 'NoneType' object is not subscriptable

Reproducing the problem:
from flet import app, Page, Text, TextThemeStyle, TextField,FilledButton,WEB_BROWSER

from flet_navigator import FletNavigator, PageData, ROUTE_404
def main_page(pg: PageData) -> None:
pg.page.add(Text(f'Main Page.', style=TextThemeStyle.DISPLAY_MEDIUM))

text = TextField()
db= pg.arguments[0]
print(db)
# print(school_db.get_grade())

pg.page.add(text, FilledButton('Send.', on_click=lambda _: pg.navigator.navigate(f'second_page?text={text.value}', pg.page)))

def second_page(pg: PageData) -> None:
pg.page.add(Text(f'Second Page!', style=TextThemeStyle.DISPLAY_SMALL))

for parameter in pg.parameters:
    pg.page.add(Text(f'{parameter}: {pg.parameters[parameter]}'))

def route_404(pg: PageData) -> None:
... # 404 Page Content.

def login_page(pg: PageData) -> None:
pg.navigator.navigate("main_page", pg.page, (1,))

def main(page: Page) -> None:
# Initialize navigator.
flet_navigator = FletNavigator(page, # Specify page.
{
'/': login_page, # Main page route,
'main_page': main_page, # Main page route,
'second_page': second_page, # Second page route,
ROUTE_404: route_404 # 404 page route
}, lambda route: print(f'Route changed!: {route}') # Route change handler (optional).
)

# Render current page.
flet_navigator.render(page)

app(target=main)

Media (optional):
Screenshot or video..

flet_navigator version, flet version, OS:
FletNavigator version, Flet Version, OS..

Additional:
...

Describe your new feature:
if I add a navigationbar (at the bottom of the screen), and when I navigate to a second page, the navigationbar won't show ( I want to keep the same bar) . Maybe add an option to show/not show/add a new one. Thanks

Additional:
...

my code

from flet import *
from flet_navigator import VirtualFletNavigator, PageData, ROUTE_404

def home(pg:PageData):
return AppBar(
title=Text("home")
)

def main(page:Page):
flet_navigator = VirtualFletNavigator(
{
"/":home,
},lambda route: print(f"nama rute :{route}")

		)
flet_navigator.render(page)

flet.app(target=main)

Minor issue. If I set a ft.AppBar in homepage, when I navigate to the 2nd page, in which I don’t need the AppBar to be displayed anymore , the AppBar is still there. I need to set pg.page.appbar = None in the 2nd page and it works.

Hi , I am interested in the flet_navigator and just tried the example (I downloaded it and named it testrouting.py) . I have this error. I tested on Linux Mint and Windows 11, using flet 0.11.0 and python 3.12.

File "/home/python_projects/flet_projects/.venv/lib/python3.12/site-packages/flet_runtime/app.py", line 359, in on_session_created
session_handler(page)
File "/home/python_projects/flet_projects/testrouting.py", line 72, in main
flet_navigator.render(page) # Render main page.
^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/python_projects/flet_projects/.venv/lib/python3.12/site-packages/flet_navigator/init.py", line 83, in render
self.routes[route](page, self, args, self._nav_previous_routes[-2] if len(self._nav_previous_routes) >= 2 else '/', route_parameters)
TypeError: main_page() takes 3 positional arguments but 5 were given

Describe your problem:
First of all, I would like to congratulate you. Flet_Navigator is an excellent product and very easy to use. I just made software for a client using it, and the usability and performance really captivated me.
Now, I have a problem... I need to upload an image using "assets" and I can't...
I set the asset path, but when I try to load an image on a specific PageData or on the main page (ft.page) the image does not appear.

Reproducing the problem:
This code bellow is what I need. I´m not using Flet_Navigatot in it .It's just to you understand the requirement.

import flet as ft
from pathlib import Path
assets=f'{Path(file).parent}\atelier-costura'
logo=f'\manual\logo-4.jpg'
print(dir)

def main(page: ft.Page):
page.title = "Images Example"
page.theme_mode = ft.ThemeMode.LIGHT
page.padding = 50
page.update()

img = ft.Image(
    src=logo,
    width=80,
    height=80,
    fit=ft.ImageFit.COVER,
    border_radius=1,
)
texto=ft.Text('Atelier Tesoura Mágica',font_family='tahoma',size=20,color=ft.colors.PINK, )

cabecalho=ft.ResponsiveRow([ft.Column(col={"xs":4,"sm": 3, "md":2 , "xl":1},controls=[img]),
                            ft.Column(col={"xs":8,"sm": 6, "md": 5, "xl": 4},controls=[texto]),
                            ],
                           vertical_alignment=ft.CrossAxisAlignment.CENTER,alignment='left')
page.add(cabecalho)

page.update()

ft.app(target=main, view=ft.AppView.WEB_BROWSER,assets_dir=assets)

Media (optional):
Screenshot or video..

flet_navigator version, flet version, OS:
Name: flet_navigator
Version: 2.6.5

Name: flet
Version: 0.21.1

Windows 10

Additional:
...

Describe your problem:
Getting this error
from flet_navigator import VirtualFletNavigator, Any, ROUTE_404
File "C:\Users\Harfho.virtualenvs\fletdemo-ECSyV_o1\lib\site-packages\flet_navigator_init_.py", line 19, in
_global_templates: dict[str, 'TemplateDefinition'] = {}
TypeError: 'type' object is not subscriptable

Reproducing the problem:
from flet import app, Text

from flet_navigator import PageData, render, anon, route

@route('/')
def main_page(pg: PageData) -> None:
pg.add(Text('Main Page!')) # or pg.page.add.

@route('second_page')
def second_page(pg: PageData) -> None:
... # Second page content.

app(anon(render, virtual=True))

Media (optional):

flet_navigator version, flet version, OS:
flet 0.21.2
flet_navigator 2.7.5

Additional:
...

Describe your problem:
If you try to expand Container layout it doesn't work, is it a known bug (flexible support)?

Reproducing the problem:
Just try to expand a Container with expand=True

Media (optional):

flet_navigator version, flet version, OS:
FletNavigator version 2.6.5, Flet Version 0.20.2, OS Windows 11 Home 10.0.22631

Additional:
...

Describe your problem:
I'm really not sure if the bug is in Flet_Navigator. I just want you to help me think about the source of the problem.
The system performs Kanban control of work orders
My page structure:
Home - Login/pawwword. It is only assessed when we enter the system.
Page1 - Entry page containing a Datatable of work orders whose origin is a dataframe, which is assembled by importing values from the Postgres database.
Page2 - Another Datatable with customer data imported from a Postgres database
Page3 - Analytical data of the work order, containing two dataframes with little data.

The problem occurs when I return from page 2 or 3 to page 1
Currently the service order datatable has 180 records...

Reproducing the problem:
The code is too big. Maybe I could post a islice of it, if you want...

Media (optional):
Screenshot or video..

flet_navigator version, flet version, OS:

`Name: flet_navigator
Version: 2.6.5

Name: flet
Version: 0.21.1

Windows10 / Apache / Android

Additional:
...