Android Week 16

What is Gradle used for in Android devopment?

Gradle compiles, packages, and delivers APKs or AABs

What tasks does Gradle automate?

Gradle automates dependency resolution, code compilation, APK signing, and resource management

What are Build Variants in Android?

allow creating different app versions using build types and product flavors

What is a Debug Build Type in Android?

includes debug information for development

What is a Release Build Type in Android?

is optimized for production and often includes obfuscation

What are Product Flavors in Android?

create different versions of the app

What is ProGuard?

shrinks, obfuscates, and optimizes code to protect against reverse engineering

What is R8 in Android?

combines shrinking, optimization, and obfuscation into one step, replacing ProGuard

What is app signing in Android?

ensures APK/AAB integrity and is required by Google Play

How do you sign an Android build?

Generate a keystore, store credentials in gradle.properies, and reference it in build.gradle

What is the first step in the Play Store publishing flow?

Create a developer account by paying a $25 one time fee

What should be included in the store listing for Play Store?

App name, description, screenshots, icon, and feature graphic

What are the assets required for Play Store publishing?

Signed AAB, version name/code, content rating, and privacy policy URL

What are the rollout stages for an app on the Play Store?

Internal testing, alpha/beta tracks, and production release

What is the purpose of offine support in apps?

It improves use experience, retention and accessibility when the internet is unstable

Which technique are used for offline support in Jetpack Compose?

Room Database, WorkManager, caching APIs with Retrofit and DataStore

Why is app size optimization important?

It results in fast download/install, reduced strorage usage, and better performance on low-end devices

What techniques optimize app size?

Use Android App Bundle, remove unused resources, ProGuard/R8, vector drawables and modularization

What is accessiblity in Android apps?

ensures the app is usable by people with impairments

How does the Semantics API help in Jetpack Compose?

It adds accessiblity metadata to UI components

What is a content description in Jetpack Compose?

provides a spoken label for images and icons for screen renders

How does the Switch composable support accessibility?

It uses the semantics modifier for contenty descriptions like “Enable dark mode”

What versioning practions should you follow for Android Apps?

Use semantic versioning: major.minor.patch and increment versionCode on each release

What should be included in a release testing checklist?

Run unit/UI tests, test on real devices, and verify crash reports

How can you ensure app maintainability?

Keep dependenceies up-to-date, modularize apps, document build steps, and automate the release processH

How does Grandle assist with Android deployment?

Grandle automates build management, helping to create different versions of the app

How does ProGuard/R8 help in deployment?

shrinks and obfuscates code to protect it and reduce APK size

Why is app signing crucial for release builds?

It ensures the APK/AAB hasnt been tampered with and is required for Google Play uploads

What is the significance of offline support in Jetpack Compose?

Offline support makes the app more robust by enabling it to work without a stable internet connection

Why optimize app size?

lead to better user adoption, faster downloads, and better performance on low-end devices