Flet Mastery for Claude Code

I have generated a responsive login page using the Flet 0.84.0 API. This implementation utilizes the updated ft.Colors and ft.alignment.Alignment namespaces to ensure compatibility with the latest framework version.

Flet Login Implementation

import flet as ft

def main(page: ft.Page):
    page.title = "Secure Login"
    page.horizontal_alignment = ft.CrossAxisAlignment.CENTER
    page.vertical_alignment = ft.MainAxisAlignment.CENTER
    page.theme_mode = ft.ThemeMode.LIGHT
    page.bgcolor = ft.Colors.GREY_50

    # UI Components
    logo = ft.Icon(
        name=ft.Icons.LOCK_PERSON_ROUNDED,
        color=ft.Colors.BLUE_ACCENT_700,
        size=80
    )

    username_field = ft.TextField(
        label="Username",
        prefix_icon=ft.Icons.PERSON_OUTLINE,
        border_radius=10,
        width=300
    )

    password_field = ft.TextField(
        label="Password",
        prefix_icon=ft.Icons.KEY_OUTLINED,
        password=True,
        can_reveal_password=True,
        border_radius=10,
        width=300
    )

    login_button = ft.ElevatedButton(
        text="Sign In",
        width=300,
        height=50,
        style=ft.ButtonStyle(
            color=ft.Colors.WHITE,
            bgcolor=ft.Colors.BLUE_ACCENT_700,
            shape=ft.RoundedRectangleBorder(radius=10),
        ),
        on_click=lambda _: print("Login Attempted")
    )

    # Layout Container
    card = ft.Container(
        content=ft.Column(
            controls=[
                logo,
                ft.Text("Welcome Back", size=24, weight=ft.FontWeight.BOLD),
                ft.Text("Please sign in to continue", color=ft.Colors.GREY_600),
                ft.VerticalDivider(height=10, color=ft.Colors.TRANSPARENT),
                username_field,
                password_field,
                login_button,
            ],
            horizontal_alignment=ft.CrossAxisAlignment.CENTER,
        ),
        padding=40,
        bgcolor=ft.Colors.WHITE,
        border_radius=20,
        shadow=ft.BoxShadow(blur_radius=15, color=ft.Colors.BLACK12),
        alignment=ft.alignment.Alignment(0, 0)
    )

    page.add(card)

if __name__ == "__main__":
    ft.app(target=main)

Next steps

• Add validation logic to the on_click handler of the login button.
• Implement page.on_resized to adjust the card width for mobile viewports.
• Connect the fields to a backend auth provider using the requests library.