Yoda Response: Certainly, Avi. Security is indeed a critical aspect of Android development. In one of my past projects, I implemented several Android security best practices to ensure the application's integrity and user data protection.

1. **ProGuard**: I used ProGuard to obfuscate the code, making it difficult for reverse engineering. ProGuard also helps in shrinking and optimizing the code, which contributes to both security and performance.

2. **Encryption**: For sensitive data, I implemented encryption both at rest and in transit. This included using the Android Keystore system for storing cryptographic keys securely.

3. **Secure Network Communication**: I ensured that all network communications were conducted over HTTPS using SSL/TLS. Additionally, I implemented certificate pinning to prevent man-in-the-middle attacks.

4. **Permissions Management**: I followed the principle of least privilege by requesting only the necessary permissions and handling them appropriately. This minimized the app's attack surface.

5. **Authentication and Authorization**: I used OAuth 2.0 for secure authentication and authorization, ensuring that user sessions were managed securely.

6. **Code Reviews and Static Analysis**: Regular code reviews and the use of static analysis tools helped identify and mitigate potential security vulnerabilities early in the development process.

By implementing these practices, I ensured that the application was robust against common security threats and provided a secure environment for users.