Android Memory Management

Memory Management

Memory Management ensures efficient use of RAM to avoid slow performance and crashes.

Key concepts
🔸 Garbage collection handling
🔸 Avoiding memory leaks
🔸 Efficient object lifecycle usage

Best practices
🔸 Use ViewModel instead of holding references in Activities
🔸 Avoid static references to Context
🔸 Release resources in lifecycle methods

Benefits
🔸 Faster app performance
🔸 Reduced app crashes
🔸 Better user experience

ProGuard / R8

ProGuard and R8 are tools used to optimize and secure your app during the build process.

What they do
🔸 Remove unused code and resources
🔸 Shrink APK size
🔸 Obfuscate code to protect from reverse engineering

Why it matters
🔸 Faster app downloads
🔸 Improved runtime performance
🔸 Increased code security

R8
🔸 Default optimizer in modern Android builds
🔸 Faster and more powerful than ProGuard

App Permissions

App Permissions control access to sensitive user data and device features.

Types of permissions
🔸 Normal permissions (internet access)
🔸 Dangerous permissions (camera, location, storage)

Best practices
🔸 Request permissions at runtime
🔸 Ask only when needed
🔸 Clearly explain permission usage to users

Benefits
🔸 Builds user trust
🔸 Improves app security
🔸 Complies with Android policies

Secure Storage

Secure Storage protects sensitive information such as tokens, passwords, and personal data.

Common secure options
🔸 Android Keystore
🔸 Encrypted SharedPreferences
🔸 Encrypted databases

Use cases
🔸 Authentication tokens
🔸 User credentials
🔸 Payment-related data

Why it’s important
🔸 Prevents data theft
🔸 Protects user privacy
🔸 Enhances app credibility

Crash Reporting

Crash Reporting helps identify and fix app issues in real-world usage.

What it provides
🔸 Detailed crash logs
🔸 Stack traces
🔸 Device and OS information

Why crash reporting is essential
🔸 Faster bug resolution
🔸 Improved app stability
🔸 Better user retention

Common use cases
🔸 Tracking production crashes
🔸 Monitoring app health
🔸 Improving release quality