Android Development Tutorial for Beginners275

Android is the world's most popular mobile operating system. In this tutorial, we will learn the basics of Android development and build a simple app.

Prerequisites

To follow along with this tutorial, you will need:
A computer with a Java development environment (JDK 8 or higher) installed
Android Studio, the official IDE for Android development
A physical Android device or an emulator

Creating a New Project

To create a new Android project in Android Studio:
Launch Android Studio.
Click on the "Start a new Android Studio project" button.
Select the "Empty Activity" template and click on "Next".
Enter a name for your project and click on "Finish".

Activity

An activity is a single screen in an Android app. In our project, we will create an activity called MainActivity.

Open the file and replace the code with the following:```java
import ;
import ;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
(savedInstanceState);
setContentView(.activity_main);
}
}
```

Layout

A layout defines the structure of an activity. In our project, we will use a layout file called .

Create a new file under the res/layout directory and name it . Replace the code with the following:```xml

<
xmlns:android="/apk/res/android"
xmlns:app="/apk/res-auto"
xmlns:tools="/tools"
android:layout_width="match_parent"
android:layout_height="match_parent">


```

Running the App

To run your app, connect your Android device to your computer and click on the "Run" button in Android Studio. You should see your app running on your device.

Congratulations

You have now created your first Android app! In this tutorial, we covered the basics of Android development, including creating a new project, creating an activity, and creating a layout. We also ran our app on an Android device.

2025-02-07

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