Android Design Patterns & Principles 📱📐

This repository is a comprehensive, beginner-friendly, and real-world guide to mastering Design Patterns and Code Principles in Android Development.

✨ Ideal for personal reference and helping fellow developers.

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📚 Folder & File Structure

android-design-patterns-reference/
│
├── README.md                         
│
├── 1_Principles/
|   |── SOLID/
|   |    |── SRP.md
|   |    |── OCP.md
|   |    |── LSP.md
|   |    |── ISP.md
|   |    └── DIP.md
│   ├── DRY.md
│   ├── KISS.md
│   ├── SoC.md
|   ├── YAGNI.md
│   └── High_Cohesion_Low_Coupling.md
│
├── 2_Design_Patterns/
│   ├── MVVM/
│   │   ├── explanation.md
│   │   ├── sample_project/
│   ├── Singleton.md
│   ├── Adapter.md
│   ├── Builder.md
│   ├── Factory.md
│   ├── Observer.md
│   ├── Strategy.md
│   ├── Repository_Pattern.md
│   ├── Command.md
│   ├── Facade.md
│
├── 3_CheatSheets/
│   ├── solid_principles_cheatsheet.png
│   ├── design_patterns_cheatsheet.pdf
│
├── 4_Examples/
│   ├── mvvm_example_app/
│   ├── singleton_retrofit_demo/
│   └── observer_livedata_flow_demo/
│
├── LICENSE
└── CONTRIBUTING.md (Optional)

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📌 Contents

🧠 Principles

• DRY – Don’t Repeat Yourself
• KISS – Keep It Simple, Stupid
• SRP – Single Responsibility Principle
• SOLID Principles Overview
• Separation of Concerns

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⚙️ Design Patterns

• MVVM Architecture
• Singleton Pattern
• Factory Pattern
• Builder Pattern
• Observer Pattern
• Adapter Pattern
• Strategy Pattern
• Repository Pattern

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💡 Cheat Sheets

• SOLID Principles Cheatsheet (PNG)
• Design Patterns Cheatsheet (PDF)

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📦 Sample Code Projects

See the 4_Examples/ folder for hands-on projects and code snippets.

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👥 Contribute or Share

Fork, clone, or share this repo with friends! Contributions welcome.

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📜 License

MIT