1 Create the Receiver Class First, create MyReceiver.java. This class extends BroadcastReceiver. The onReceive() method is triggered instantly by the system whenever the specified event (in this case, toggling Airplane Mode) occurs. Copy package com.example.android_broadcastreceivers; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.widget.Toast; public class MyReceiver extends BroadcastReceiver { @Override public void onReceive(Context context, Intent…
1 Create the Service Class First, create MyService.java. This class handles the background work. Because a service runs on the main UI thread by default, heavy operations should be offloaded to a separate Thread here. Copy package com.example.android_service; import android.app.Service; import android.content.Intent; import android.os.IBinder; import android.util.Log; import android.widget.Toast; public class MyService extends Service { private…
In this tutorial, we will build a modern, list-based Android application. We will use a Single Activity Architecture, meaning our main screen will be hosted inside a Fragment. We will implement both a horizontal and a vertical RecyclerView on the home screen, and make them clickable to open a separate Detail Screen. App Preview: What…
Building a CRUD App with RecyclerView, Room, and Fragment In this tutorial, we will build a complete CRUD (Create, Read, Update, Delete) application in Android. We will use a Fragment to manage our User Interface, RecyclerView to display a list of names, and Room Database to store those names locally. Step 1: Add Dependencies (build.gradle)…
Building a Task List App: RecyclerView, Room, and Fragment This is a great combination of core Android topics. To demonstrate RecyclerView, Room, and Fragment working together, we will build a simple Task List App. The app will use a Fragment to display a user interface, Room to save tasks to a local SQLite database, and…
SharedPreferences The “Save Game” of Android Development, Explored & Visualized Storing small bits of data shouldn’t require a full database. SharedPreferences allows you to persist key-value pairs easily. Whether it’s a user’s high score or a “Dark Mode” toggle, this API has been the backbone of Android persistence for years. Try the Simulator Click the…
This guide covers the essential steps to create a functional “Hello World” application in Android Studio. 1. Project Setup 2. Designing the Layout (XML) Android uses XML for UI design. Navigate to res -> layout -> activity_main.xml. This file defines how your app looks. 3. Writing the Logic (Java) Now, navigate to java -> com.example.myfirstapp…