mobile-Development/android-fundamentals at Latest · smartly-creators-program/mobile-Development · GitHub

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# Android Fundamentals

## 📌 What is Android?
- Android is a mobile operating system developed by Google.
- It is open-source (anyone can use and modify it).

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## ❓ Why is Android Important?
- Used by billions of devices
- Large user base
- Flexible and customizable

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## ❓ Who uses Android?
- Mobile companies:
  - Samsung
  - Xiaomi
  - OnePlus

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## ❓ How does Android work?
- Based on Linux system
- Uses apps to perform tasks
- Apps interact with system services

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## ❓ What languages are used?
- Kotlin (modern)
- Java (older but still used)

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## ❓ What tools are used?
- Android Studio (official IDE)

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## ❓ What are Android App Components?

### 1. Activity
- Represents a screen

### 2. Service
- Runs in background

### 3. Broadcast Receiver
- Responds to system events

### 4. Content Provider
- Manages shared data

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## ❓ Why is Android Open Source?
- Allows customization
- Faster innovation
- Many device options

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## 🧠 Key Points
- Android = flexible, open system
- Uses Kotlin/Java
- Large global reach