Build native mobile apps using Python and NativeScript

Nowadays, mobile applications have become an important part of modern social life. However, in order to build great applications, developers need to choose the right technology and toolset. Python is a popular programming language that is popular among developers because it is easy to learn and use. NativeScript is a popular native mobile application framework that provides the ability to build native applications and supports both iOS and Android platforms. In this article, we will cover how to build native mobile applications using Python and NativeScript.

The combination of Python and NativeScript

Python was originally widely spread as a server-side programming language. However, Python has strong cross-platform performance and ease of use, so it also has an important application in the mobile application development process. Python can be used to develop web applications, scripts, and executable files, and has many other application areas.

NativeScript is a popular native mobile application framework that can be developed using JavaScript and TypeScript and allows the building of native iOS and Android applications. Using NativeScript to develop applications has many advantages, such as saving time and development efforts, increasing application speed and performance, etc. The combination of Python and NativeScript can not only use Python to create highly readable code and improve development efficiency when building local applications, but also take advantage of the powerful functions of the NativeScript framework to enhance the functionality of the application.

Installing and Configuring Python and NativeScript

Before you start building native mobile applications using Python and NativeScript, you need to install and configure Python and NativeScript. Both Python and NativeScript provide detailed installation instructions and usage documentation, so the process is quite simple and easy.

First, you need to download and install Python. Here we are using the latest version of Python 3.9.5. Then you need to install NativeScript CLI (command line interface), which requires using Node.js and npm (Node.js package manager). After installing Node.js, you can use the following command to install NativeScript:

npm install -g nativescript

After the installation is complete, you need to set up the development environment for Android and iOS platforms. For the Android platform, you need to install JDK (Java Development Kit), Android SDK (Android Software Development Kit), and Android Studio in order to create and debug Android applications. For the iOS platform, you need to install Xcode in order to create and debug iOS applications.

Building native mobile applications using Python and NativeScript

The process of building native mobile applications using Python and NativeScript is similar to building applications using other languages ​​and frameworks. Here, let's start by creating a new application.

Create a new application

In order to create a new native mobile application, you need to use the following command:

tns create my-app-name --template tns-template-hello-world

This command will use the NativeScript framework to create a new application called " my-app-name" and build it based on the "tns-template-hello-world" template.

Writing Code using Python

After creating a new application, you can write code using the installed Python. In order to use Python with NativeScript, you need to use a binding library between Javascript and Python. PyJs is a popular binding library that allows you to communicate between JavaScript and Python and enhance the functionality of your applications.

The following is an example of using Python to write logic:

// app.py
def say_hello(name):
    return "Hello, " + name
  
// main.js
var PyJs = require("pyjs");

PyJs.load("app.py", function (mod) {
  console.log(mod.say_hello("John"));
});

This code uses JavaScript code to call Python modules and functions, and prints the return value to the console.

Building and running the application

After you have created your new application and written the code, you can now build and run the application using the NativeScript CLI. The following is an example of building and running an Android application:

tns build android
tns run android

This command will build and run the application using Android Studio and load the application on the device or emulator. Here is an example of building and running an iOS app:

tns build ios
tns run ios

This command will build and run the app using Xcode and load the app on the device or simulator.

Conclusion

In this article, we covered how to build native mobile applications using Python and NativeScript. The readability of Python and the power of NativeScript combine to increase application speed and performance. When creating and debugging native mobile applications, you should always keep in mind the importance of installing and configuring your environment, and use existing Python libraries and the powerful features in the NativeScript framework to enhance your applications.

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