Floating Action Type button in kivy

Implementation

Below is the step-by-step implementation of the floating action button in kivy.

Approach

The basic approach to implement the floating action type button in kivy is discussed below:

1.  import kivy
2.  import kivyApp
3.  import Boxlayout
4. Set minimum version(optional)
5. create a Layout class
6. create an App class
7. Set up .kv file :
8. Add Floating Button Properties
9. Create Main Window
10. Add Float Button
11.  return Layout/widget/Class
12.  Run an instance of the class

Code

First, create a main.py file and paste the following code.

main.py

import kivy

from kivy.uix.boxlayout import BoxLayout

from kivy.config import Config 

Config.set('graphics', 'resizable', True)

class MainWindow(BoxLayout):

    pass
    
class MainApp(App):

    def build(self):
    
        return MainWindow()
        
if __name__ == '__main__':

    MainApp().run()

You can also try this code with Online Python Compiler

Run Code

Create a main.kv file and paste the following code.

main.kv 

<FloatButton@FloatLayout>
    id: float_root 
    size_hint: (None, None)
    text: ''
    btn_size: (80, 80)
    size: (80, 80)
    bg_color: (0.405, 0.227, 0.718, 1.0)
    pos_hint: {'x': .7}

    Button:
        text: float_root.text
        markup: True
        font_size: 40
        size_hint: (None, None)
        size: float_root.btn_size
        pos_hint: {'x': 5.5, 'y': 3.8}
        background_normal: ''
        background_color: (0, 0, 0, 0)
        canvas.before:
            Color:
                rgba: (0.404, 0.227, 0.718, 1.0)
            Ellipse:
                size: self.size
                pos: self.pos

<MainWindow>:
    BoxLayout:
         
        # Creating the Float button
        FloatButton:
            text: '+'
            markup: True
            background_color: 1, 0, 0, .5                  

You can also try this code with Online Python Compiler

Run Code

Output

This is how we implement the Floating Action Type button in kivy. Let us now look into some frequently asked questions on the Floating Action Type button in kivy.

Frequently Ask Questions

How can we use kivy's toggle button?

The ToggleButton widget may be used to create a toggle button that functions similarly to a checkbox. When you touch or click it, the status changes from 'normal' to 'down' (as opposed to a Button, which is just 'down' when pushed).

How to change the background colour of the floating action button in kivy?

We can change the background colour of the floating action button by writing the following code inside the FloatButton.

background_color: 1, 0, 0, .5 

How to set the animation to the floating action button in kivy?

To provide the animation to the floating action button in kivy, we write the following code inside the FloatButton.

hint_animation : true

How to change the text inside the floating action button in kivy?

For changing the text inside the floating action button in kivy, we need to text in the text tag inside the FloatButton.

For example

text: 'Text you want in the FAB.'

What is true about floating action buttons?

The principal or most common action on a screen is performed by a floating action button (FAB). It usually appears as a circular shape with an icon in the centre in front of all screen content. There are three sorts of FABs: standard, small, and extended.

Conclusion

In this article, we have extensively discussed the Floating Action Type button in kivy. We start with a brief introduction of the Floating Action Type button in kivy and then discuss the steps to implement it.

After reading about the Floating Action Type button in kivy, are you not feeling excited to read/explore more articles on the topic of KIVY? Don't worry; Coding Ninjas has you covered. To learn, see the Introduction to Kivy, The drop-down List In Kivy, Widgets in Kivy, and Kivy Float Layout in Python.

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