Are you looking to transform your ideas into functional web and mobile apps without diving deep into front-end programming? Welcome to Flet!

What is Flet?

Flet is a dynamic framework designed to let you build real-time applications quickly. Whether you’re creating an internal tool, a data entry form, or an interactive kiosk app, Flet simplifies the process. Using just Python, you can create a seamless user experience without worrying about complex architectures or multiple programming languages. It does all the heavy lifting for you!

From Idea to App in Minutes

Flet allows you to develop applications at lightning speed. Imagine having a toolbox that instantly supplies you with everything you need to build an application. This means no fussing with JavaScript frontends, REST APIs, or databases – just clear and straightforward Python coding.

Key Features of Flet

• Simple Architecture: Write monolithic stateful apps effortlessly.
• Batteries Included: Comes with a built-in web server, so no additional setup is needed.
• Powered by Flutter: Your apps will look polished thanks to Flutter architecture.
• Language Agnostic: While Python is supported, you can look forward to Go, C#, and more!
• Multi-Device Deployment: Web apps, desktop packages, or mobile apps – Flet handles it all.

Building Your First Flet App

Let’s explore how you would create a simple Counter app using Flet. Think of building this application as assembling a LEGO set: you have all the pieces (widgets) you need, and you simply put them together to achieve your desired creation.

import flet
from flet import IconButton, Page, Row, TextField, icons

def main(page: Page):
    page.title = "Flet Counter Example"
    page.vertical_alignment = "center"
    txt_number = TextField(value=0, text_align="right", width=100)

    def minus_click(e):
        txt_number.value = str(int(txt_number.value) - 1)
        page.update()

    def plus_click(e):
        txt_number.value = str(int(txt_number.value) + 1)
        page.update()

    page.add(
        Row(
            [
                IconButton(icons.REMOVE, on_click=minus_click),
                txt_number,
                IconButton(icons.ADD, on_click=plus_click),
            ],
            alignment="center",
        )
    )

flet.app(target=main)

Running the Counter App

Just like making a recipe, there are a few steps to follow:

• Install the Flet module: pip install flet
• Run your program: python counter.py

Once you do this, a native app will open, allowing you to increase or decrease your counted value.

Deploying as a Web App

To run your app as a web app, simply tweak the last line in your code:

flet.app(target=main, view=flet.AppView.WEB_BROWSER)

Your app is now viewable directly in your web browser. It’s a snap to make it accessible to everyone!

Troubleshooting Tips

While Flet is designed to make application building simple, you may encounter some hiccups along the way:

• Module Not Found: Ensure you have installed the Flet module correctly.
• App Not Running: Check if your Python environment is set up properly.
• Unexpected Errors: Review your code for typos or logical mistakes.

For more insights, updates, or to collaborate on AI development projects, stay connected with fxis.ai.

Explore Further

Ready for more? Check out the following resources:

• Creating Flet apps in Python
• Controls Reference
• Greeter Example
• Counter Example
• To-Do Example
• Icons Browser Example

At fxis.ai, we believe that such advancements are crucial for the future of AI, as they enable more comprehensive and effective solutions. Our team is continually exploring new methodologies to push the envelope in artificial intelligence, ensuring that our clients benefit from the latest technological innovations.