Day 5: Day 5

Today's Objective

By the end of this lesson you will understand build and deploy deeply enough to apply it immediately in real projects.

bash.txt

BASH

# Build release Android APK
flutter build apk --release
# or split by ABI (smaller files):
flutter build apk --split-per-abi

# Build Android App Bundle (required for Play Store)
flutter build appbundle --release

# Build iOS (requires Mac + Xcode)
flutter build ios --release

yaml.txt

YAML

# pubspec.yaml — app identity
name: my_app
description: A new Flutter project.
version: 1.0.0+1   # version+buildNumber

flutter:
  uses-material-design: true
  assets:
    - assets/images/
  fonts:
    - family: DM Sans
      fonts:
        - asset: assets/fonts/DMSans-Regular.ttf

bash.txt

BASH

# Build and upload to Firebase App Distribution (for testing)
flutter pub add --dev firebase_app_distribution
flutter build apk --release
firebase appdistribution:distribute build/app/outputs/flutter-apk/app-release.apk \
  --app YOUR_APP_ID \
  --groups "testers"

Tip: Use flutter build --obfuscate --split-debug-info=./debug-info to shrink and protect your release binary.

Exercise: Publish to the Play Store

Run flutter build appbundle --release
Open Google Play Console and create a new app
Upload the .aab file to Internal Testing track
Fill in store listing: icon, screenshots, description
Promote to Production after testing

Day 5 Summary

version: 1.0.0+1 maps to versionName+versionCode
App Bundle (.aab) is smaller than APK for Play Store
iOS requires a Mac with Xcode and an Apple account
Obfuscation hides class/method names in release builds
Firebase App Distribution is free for beta testing

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HTTP and JSON

Course Complete 🎉

Back to Flutter in 5 Days

Course Complete

Completing all five days means having a solid working knowledge of Flutter. The skills here translate directly to real projects. The next step is practice — pick a project and build something with what was learned.

Supporting Videos & Reading

Go deeper with these external references.

YouTube

Day 5 — Video Walkthroughs Community tutorials and walkthroughs covering the concepts in this lesson.

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YouTube

Day 5 Explained Deep-dive explanations and live-coding sessions from top educators.

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Official Docs

Official Documentation Primary reference documentation for the technologies covered in this lesson.

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GitHub

Open Source Examples Real-world codebases demonstrating the patterns taught in this lesson.

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Day 5 Checkpoint

Before moving on, verify you can answer these without looking:

What is the core concept introduced in this lesson, and why does it matter?
What are the two or three most common mistakes practitioners make with this topic?
Can you explain the key code pattern from this lesson to a colleague in plain language?
What would break first if you skipped the safeguards or best practices described here?
How does today's topic connect to what comes in Day the final lesson?

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