GDG Techshow Loveleen Kaur

Transcript

1. Speaker Image Placeholder Compose Your App Loveleen Kaur Android Educator Software Engineer, Astrotalk
2. Who am I? 󰠁 • Loveleen Kaur • Software Engineer - Android @ Astrotalk • Core Team Member @ GDG Chandigarh • Android Educator @ Android Educators Community India • Develop Mobile Applications • Technical Speaker • Happy Android Developer :)
3. Agenda • Jetpack Compose • Why • Which Apps are using Compose? • XML vs Compose • Layouts • Modifiers • Pathways • Digital Badges • Resources
4. Problem With Existing UI???
5. Jetpack Compose • Modern UI development toolkit • Fully built with Kotlin • Simplifies and accelerates UI development • Less code • Intuitive Kotlin APIs • Powerful API and tools
6. Jetpack Compose Compose apps are written in the Kotlin programming language. Kotlin is the language that the majority of professional Android developers use to build apps.
7. Why Jetpack Compose? • Single language - Kotlin • Less Code • Accelerates Development • UI and operations in same place • Declarative UI • Scope for reusable UI components • Better, testable, debuggable code for UI
8. Which apps are using Compose?
9. XML vs Compose • Imperative way in View • Bind Views • Access properties via getters • Set properties via setters • Listen View events via listeners • Declarative way in Jetpack Compose • Compose components • Declarative way ◦ Compose component ◦ State IN ◦ Events OUT
10. XML vs Compose
11. “Jetpack Compose is Love that makes Android Developers happier.”
12. Layouts in Compose Column Row Box
13. Column Column { Text(...) Text(...) Text(...) }
14. Row Row{ Text(...) Text(...) Text(...) }
15. Box Column { Row{ Text(...) Text(...) } Text(... }
16. Modifiers • It is like CSS for our Composables • If we need to add decorations or style, we use modifiers • Modification work in sequential manner
17. Pathways A pathway consists of a sequence of learning activities (videos, articles, and codelabs), to help you learn about a certain technical topic.
18. Earn Digital Badges For each quiz successfully passed, participants earn a badge on their developer profiles. Carrie Sawyer
19. Resources • https://developer.android.com/jetpack/compose/tutorial • https://developer.android.com/jetpack/compose • https://developer.android.com/courses/jetpack-compose/course
20. Thank You Loveleen Kaur https://www.linkedin.com/in/loveleen-kaur/ https://twitter.com/loveleen_nancy