How Do I Run an App on Android Studio?

Android, Android Apps

In this tutorial, we will learn how to run an app on Android Studio. Android Studio is the official Integrated Development Environment (IDE) for developing Android applications. It provides a complete set of tools for building, testing, and debugging Android apps.


Before we begin, make sure you have the following:

  • Android Studio installed on your computer
  • An Android device or emulator to run the app

Step 1: Create a New Project

To start, open Android Studio and click on “Start a new Android Studio project” or go to “File” > “New” > “New Project”. Enter the necessary details such as application name, domain name, package name, etc. Choose your desired minimum SDK version and click “Finish”.

Step 2: Design the User Interface

The next step is designing the user interface (UI) of your app. In the project window on the left-hand side, navigate to the “app” folder and expand it.

Inside this folder, you will find a file named “activity_main.xml”. Double-click on it to open the layout editor.

The layout editor allows you to visually design your app’s UI. You can drag and drop widgets from the palette onto the design canvas. Customize their properties using the properties panel on the right-hand side.


You can also directly edit the XML code if you prefer coding over visual design.

Step 3: Write Java Code

After designing your UI, it’s time to write Java code to add functionality to your app. In Android Studio, navigate to the “app” folder again and expand it.

Inside, you will find a folder named “java”. Expand it further until you see a package with the same name as the package name you entered during project creation.

Right-click on this package and go to “New” > “Java Class”. Enter the desired name for your class and click “OK”.

Inside the newly created class, you can write your Java code to handle user interactions, perform calculations, make network requests, etc. Android Studio provides various tools and libraries to simplify app development.

Step 4: Run the App

Once you have designed your UI and written the necessary Java code, it’s time to run your app. Connect your Android device to your computer using a USB cable or launch an emulator from Android Studio.

In Android Studio, click on the green play button located in the toolbar. A dialog box will appear asking you to choose the device on which you want to run the app. Select your connected device or emulator and click “OK”.

Android Studio will then compile and install your app on the selected device or emulator. You can see logs and progress in the “Run” window at the bottom of Android Studio.


If running on an emulator, it might take some time for the emulator to start up.


Congratulations! You have successfully learned how to run an app on Android Studio.

In this tutorial, we covered creating a new project, designing the UI, writing Java code, and running the app on a device or emulator. Keep exploring Android Studio’s features and APIs to create amazing Android applications!