How to Use Popup Widget in Kivy

by aryaman@openweaver.com Updated: Sep 13, 2023

Solution Kit

A Kivy Popup is a widget that overlaps a window on top of the main application window. It is versatile and interactive. Developers can show more info, notifications, or prompts without interrupting the main workflow.

Popups grab attention and provide information or choices, improving user experience. Kivy Popups come in various forms, catering to different needs and contexts. Popups can display special offers, promotions, or announcements in small businesses. Popups are useful at events like conferences for information centers or registration booths. Educational applications can also employ them to display tips or tutorials. Kivy Popups has many customizable features to meet specific application needs.

Features:

Simple Templates: Popups can show text and buttons to talk to the user easily. They use simple templates for effectiveness.
Complex Designs: Popups with different designs and elements can complicate things. They include widgets, pictures, and layouts. This makes the user experience very engaging and immersive.
Modal Popups: It restricts the actions of users in an application until they close the Popup. This helps keep their attention on the Popup.
Popup Title: Popups can have a title to give context and help users understand the Popup's purpose.
On_press Event: Certain actions can happen when users press buttons in the Popup. This allows for smooth integration with the application's functions.

Tips for Creating Successful Kivy Popups:

Pick the Right Template: Choose one that matches the Popup's purpose and the app's design.
Effective Marketing Strategies: You can use popups to have effective marketing strategies. Popups can deliver compelling messages, such as limited-time offers or exclusive deals. This will entice users to take action.
Visual Appeal: Create a Popup that has eye-catching pictures and easy-to-understand words. This will get the user's attention and convey the message.
User-Friendly Interface: The interface needs to be user-friendly. It should be easy to use, allowing users to close the Popup and avoid interruptions. This will improve the user's experience.

Kivy Popups find utility in various settings, including:

Small Business Displays: Promoting products, announcing discounts, or collecting user feedback.
Large Event Displays: For providing event information, interactive maps, or registration options.
Educational Applications: It provides hints, tips, or extra content to help enhance learning.

Making the Most of Kivy Popups:

Develop Effective Marketing Plans: Use popups strategically to make marketing plans work well. They catch users' attention and create a sense of urgency.
Visually Appealing Design: When designing the Popup, make it look nice and easy to use. Pay attention to visual elements, typography, and layout.

Critical Points for Writing about Kivy Popups:

Template Selection: Choose the correct template based on the Popup's purpose and audience.
Marketing Strategies: Discuss how Popups can be effectively used for marketing and engagement.
User Experience: Highlight the importance of a visually appealing design and user-friendly interactions.

Kivy Popups can talk to users, get their attention, and improve their apps. Businesses and event organizers choose them because they can personalize templates. It also includes interactive features. It helps them engage their audiences. Kivy Popups can be powerful tools for sharing messages and promoting offers. They can also help with interactions in apps or events. With the right design and marketing strategies, they become even more effective.

CODE

PythonLines of Code : 79License : Strong Copyleft (CC BY-SA 4.0)

Dependent Libraries :

from kivy.app import App
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.popup import Popup
from kivy.properties import StringProperty, ObjectProperty
from kivy.lang.builder import Builder


Builder.load_string('''
<SaveAs>:
    teinp: teinp
    Button:
        text:'Hi users'
        on_release: root.on_call_popup()
    TextInput:
        id: teinp
        text:'text input'

<TextInputPopup>:
    answer: answer
    title: root.title
    size_hint: None, None
    size: app.root.width/2, app.root.height/2
    auto_dismis: False

    BoxLayout:
        orientation: 'vertical'
        Label:
            text: root.label
        TextInput:
            id: answer
            text: ''
        BoxLayout:
            Button:
                text: 'Cancel'
                on_press: root.dismiss()
            Button:
                text: 'OK'
                on_press: root.dismiss()
 ''')


class TextInputPopup(Popup):
    title = StringProperty()
    label = StringProperty()
    answer = ObjectProperty()

    def __init__(self, title, label, **kwargs):
        super(TextInputPopup, self).__init__(**kwargs)
        self.set_description(title, label)

    def set_description(self, title, label):
        self.title = title
        self.label = label

    def get_answer(self):
        return self.answer.text


class SaveAs(BoxLayout):
    teinp = ObjectProperty()

    def on_call_popup(self):
        poti = TextInputPopup('File Manager', 'Name')
        poti.open()
        poti.bind(on_dismiss=self.next_step)

    def next_step(self, popup):
        self.teinp.text = popup.get_answer()


class ExplorerApp(App):

    def build(self):
        return SaveAs()


if __name__ == '__main__':
    ExplorerApp().run()

Copy the code using the "Copy" button above, and paste it into a Python file in your IDE.
Modify the code.
Run the file to check the output.

I hope you found this helpful. I have added the link to dependent libraries and version information in the following sections.

Dependent Libraries

kivyby kivy

Python

15962

Version:2.2.0

License: Permissive (MIT)

Open source UI framework written in Python, running on Windows, Linux, macOS, Android and iOS

Support

Quality

Security

License

Reuse

kivyby kivy

Python 15962 Version:2.2.0 License: Permissive (MIT)

Open source UI framework written in Python, running on Windows, Linux, macOS, Android and iOS

Support

Quality

Security

License

Reuse

Environment Tested

I tested this solution in the following versions. Be mindful of changes when working with other versions.

The solution is created in Python3.11.
The solution is tested on kivy 2.2.1 version.

FAQ

1. What is Kivy Popup, and how can we use it in an application?

Kivy Popup is a widget that lets developers make overlays in their apps with Windows. Users can view additional information or options without disrupting the main application. Popups help convey important messages, notifications, or user prompts. They can show informative alerts, confirmations for actions, input prompts, or interactive menus. Developers can improve the user experience with Kivy Popups. They can show relevant content attractively and appropriately.

2. What content widgets can I use within a popup window?

Kivy Popups can use various widgets to create fun user experiences. Within a popup window, you can use some content devices.

Label: For displaying text and messages to the user.
Button: For offering choices or actions for the user to select.
Image: For showing graphics or visual elements.
TextInput: For allowing user input within the Popup.
ProgressBar: For displaying progress or loPopup indicators.

You can arrange the content widgets in the popup window using different layouts. Some options are BoxLayout, GridLayout, or FloatLayout.

3. How do I create a popup window when the user presses a button?

To make a popup window appear when the user clicks a button in Kivy, first create a Popup class. Then, connect it to the button's on_press event.

4. What is the root widget, and how does it work with Kivy Popup?

The main widget in Kivy is the top-level widget that is the parent of all other devices in the app. It is typically the main container that holds all the other UI elements. To display the popup window on top of the main interface, the root widget is necessary when using Kivy Popup. The main window displays the Popup widget on top as if it were a child of the root widget.

By default, Kivy sets the root widget to the first widget returned by the build() method of the App class. When you open the Popup using the open() method, it appears on top of the root Popupt's content. The app's interface disables or grays out parts in different settings.

5. Does Kivy Popup work with the Python interpreter, or must I write my code to use it?

You can use Kivy Popup in your Python code without writing your implementation. Kivy is a Python library for making GUI programs with interactive widgets, such as Popup.

To use Kivy Popup, you must install the Kivy library in your Python code. After importing, you can make and personalize Popup instances. Open them when needed. Kivy simplifies making overlay-style interfaces by handling Popup window rendering and interaction. It is a straightforward and efficient tool for your application.

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How to Use Popup Widget in Kivy

Features:

Tips for Creating Successful Kivy Popups:

Kivy Popups find utility in various settings, including:

Making the Most of Kivy Popups:

Critical Points for Writing about Kivy Popups:

CODE

Dependent Libraries

Environment Tested

FAQ

Support

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