zentap/RELEASE_BUILD_SUMMARY.md

ZenTap Release Build Summary

✅ Successfully Completed

1. Keystore Creation

• File: android/app/zentap-release-key.jks (2.7KB)
• Alias: zentap
• Validity: 10,000 days (27+ years)
• Algorithm: RSA 2048-bit

2. Signing Configuration

• Key Properties: android/key.properties
• Build Configuration: Updated android/app/build.gradle.kts
• ProGuard Rules: Created android/app/proguard-rules.pro

3. Release Bundle Generation

• File: build/app/outputs/bundle/release/app-release.aab
• Size: 51MB
• Status: ✅ Successfully built and signed
• Minification: Enabled with ProGuard/R8
• Shrinking: Resource shrinking enabled

📁 Generated Files

android/
├── key.properties               # Keystore configuration
└── app/
    ├── zentap-release-key.jks  # Release signing keystore
    ├── proguard-rules.pro      # ProGuard obfuscation rules
    └── build.gradle.kts        # Updated with signing config

build/app/outputs/bundle/release/
└── app-release.aab             # Ready for Google Play Store

🚀 Next Steps

1. Upload to Google Play Console:

   • Go to Google Play Console
   • Upload app-release.aab file
   • Complete store listing information

2. Backup Important Files:

   • Store zentap-release-key.jks securely
   • Keep key.properties safe (contains passwords)
   • Note: These files are required for future app updates

3. Security Recommendations:

   • Change keystore passwords from defaults
   • Store keystore in secure location
   • Consider using Google Play App Signing

⚙️ Build Configuration Details

Dependencies Added

• com.google.android.play:core:1.10.3 - For Play Store compatibility

ProGuard Rules

• Google Play Games services preservation
• Google Play Core library preservation
• Flutter framework preservation

Build Features

• Minification: Enabled (reduces app size)
• Resource Shrinking: Enabled (removes unused resources)
• Code Obfuscation: Enabled (protects source code)

📊 Build Optimizations

• Font Assets: Tree-shaken (99.6% reduction)
  • CupertinoIcons: 257KB → 1KB
  • MaterialIcons: 1.6MB → 6KB
• Bundle Format: AAB (Android App Bundle) for optimal delivery
• Target SDK: Latest Android version support

🔐 Security Features

• App Signing: Production-ready keystore
• Code Protection: ProGuard obfuscation enabled
• Asset Optimization: Unnecessary debug symbols removed

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Build Date: 2025-05-30
Flutter Version: Latest stable
Target Platform: Android (Google Play Store)
Bundle Size: 51MB (optimized)