31 May How To Develop Android App Using Python?
Android app development is one of the quickest developing tech abilities these days, and its fame is on the ascent. Numerous new programming structures are being brought into the scene; some have proactively perceived their rule. As each language has declared its presence in a field, how might Python be forgotten?
Any Mobile application development company can deploy different programming languages such as C, Corona, Python, C++, JavaScript, C#, Lua, Java, HTML5, Kotlin, etc. The Python biosphere has a wide assortment of libraries that include practically all qualities helpful for any mobile application development company. Python app development is an exceptionally renowned methodology due to its adaptability and straightforward capacity.
This passage will take a gander at how to frame the essentials of fostering an android application, referring to the documentation, and how to push forward with your tasks.
Topics Covered
KIVY; THE LEADER
Android app development in Python has been made conceivable simply because of an open-source Python library for creating versatile solutions and another multi-contact application program named Kivy. Its underlying launch was in 2011, and a steady one was out in 2019! Kivy upholds android application advancement, and its applications can work in Linux, Windows, iOS, OS X, and Android. It is written in Cython and Python, and you can hire Android developers mainly from Russia, their core center.
Kivy is mainly deployed for the front-end application purpose with other packages.
PROJECT REQUIREMENTS & SETUP
To start the project, you must hire an Android developer who has complete knowledge of the following prerequisites;
-Objects and Classes in Python
-Python programming language
The programmer should have a pre-installed Kivy library in their system before initiating the project. Next, you can use the following command for Kivy installation on the system:
pip install kivy
BRING IN LIBRARY
Make a folder naming ‘Calculator App’. It is the solution’s name. Inside this folder, build a new file and name it ‘main.py’. Follow the below snippet to proceed.
from kivy.app import App from kivy.uix.gridlayout import GridLayout from kivy.uix.label import Label from kivy.uix.image import Image from kivy.uix.button import Button from kivy.uix.text input import TextInput
APPLICATION WIDGETS CODING
Now, make a window object for the software solution by starting an ‘Age Calculator’ class. Check the snippet below.
class AgeCalculator(App): def build(self): self.window = GridLayout() return self.window
Next, make the function work as fast as the program carries out the file.
if __name__ == "__main__": AgeCalculator().run()
The Android application development company must design the software for a more innate user interaction and interface. To illustrate, start by arranging the columns occupied in the grid framework. Further designing will be done once the app features work well.
self.window.cols = 1
Get the logo ready using the below code. Save the app’s logo once more in the similar directory as the file ‘main.py’ to get it easily discovered by the app.
self.window.add_widget(Image(source("logo_image.png")))
Because the app is based on calculating the user’s age, we have to offer an input where the user can insert their date of birth. It can be labelled as ‘enter your date of birth’.
self.ageRequest = Label(text = "Enter your year of birth...") self.window.add_widget(self.ageRequest) self.date = TextInput(multiline=False) self.window.add_widget(self.date)
ASSEMBLE USER DATA
Let’s now make an app to attach the user’s information; here is the date of birth.
self.date = TextInput()
ATTACH FUNCTION TO THE BUTTON TO COMPUTE AGE
For calculating the age, the callback function must be bound to the button so that when the ‘Calculate age’ button is pressed, the ‘get age’ feature is asked to evaluate the user’s age as per the birth year data provided.
self.button = Button(text = "Calculate Age") self.button.bind(on_press = self.getAge) self.window.add_widget(self.button)
DETERMINE THE AGE FUNCTION
This feature subtracts the input birth year from the current year. The ‘Data Time’ Python segment is deployed to draw out the year part from it.
Furthermore, the input user year is transformed into an integer to compute a standard data type. The result is given in the form of a string and provided to the user.
def getAge(self, event): today = datetime.today().year dob = self.date.text age = int(today) - int(dob) self.ageRequest.text = "You are " + str(int(age)) + " years old"
DESIGNING THE APP’S INTERFACE
Make the borderlines on the application’s bottom and sides. One more benefit of the module is that the application grows, consequently answering screen size and providing a detailed blueprint of the oppressed screen size.
Check the application’s components in the following snippet.
def build(self): self.window = GridLayout() self.window.cols = 1 self.window.size_hint = (0.6, 0.7) self.window.pos_hint = {"center_x": 0.5, "center_y": 0.5 } self.window.add_widget(Image(source("logo_image.png"))) self.ageRequest = Label( text = "Enter your date of birth...", font_size = 50, color = "#ffffff", bold = True ) self.window.add_widget(self.ageRequest) self.date = TextInput( multiline=False, padding_y = (30, 30), size_hint = (1, 0.7), font_size = 30 ) self.window.add_widget(self.date) self.button = Button( text = "Calculate Age", size_hint = (0.5, 0.5), bold = True, font_size = 30 ) self.button.bind(on_press = self.getAge) self.window.add_widget(self.button) return self.window
RUN THE APP
Unlock the terminal and go through the task index to make the application run. Then, pass the order underneath in the project catalogue.
python main.py
CONCLUSION
Overall, Android app development can be effectively performed using the Kivy Python library. We built an age calculating software utilizing the multi-stage python module and tried our applications’ usefulness. Using Python is majorly preferred by any Android application development company.
No Comments