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How to Build Android Apps with Kotlin

You're reading from   How to Build Android Apps with Kotlin A hands-on guide to developing, testing, and publishing your first apps with Android

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Product type Paperback
Published in Feb 2021
Publisher Packt
ISBN-13 9781838984113
Length 794 pages
Edition 1st Edition
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Authors (4):
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Eran Boudjnah Eran Boudjnah
Author Profile Icon Eran Boudjnah
Eran Boudjnah
Jomar Tigcal Jomar Tigcal
Author Profile Icon Jomar Tigcal
Jomar Tigcal
Alex Forrester Alex Forrester
Author Profile Icon Alex Forrester
Alex Forrester
Alexandru Dumbravan Alexandru Dumbravan
Author Profile Icon Alexandru Dumbravan
Alexandru Dumbravan
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Table of Contents (17) Chapters Close

Preface
1. Creating Your First App 2. Building User Screen Flows FREE CHAPTER 3. Developing the UI with Fragments 4. Building App Navigation 5. Essential Libraries: Retrofit, Moshi, and Glide 6. RecyclerView 7. Android Permissions and Google Maps 8. Services, WorkManager, and Notifications 9. Unit Tests and Integration Tests with JUnit, Mockito, and Espresso 10. Android Architecture Components 11. Persisting Data 12. Dependency Injection with Dagger and Koin 13. RxJava and Coroutines 14. Architecture Patterns 15. Animations and Transitions with CoordinatorLayout and MotionLayout 16. Launching Your App on Google Play

Animations with MotionLayout

Creating animations in Android is sometimes time-consuming. You need to work on XML and code files even to create simple animations. More complicated animations and transitions take more time to make.

To help developers easily make animations, Google created MotionLayout. MotionLayout is a new way to create motion and animations through XML. It is available starting at API level 14 (Android 4.0).

With MotionLayout, we can animate the position, width/height, visibility, alpha, color, rotation, elevation, and other attributes of one or more views. Normally, some of these are hard to do with code, but MotionLayout allows us to easily adjust them using declarative XML so that we can focus more on our application.

Let's get started by adding MotionLayout to our application.

Adding MotionLayout

To add MotionLayout to your project, you just need to add the dependency for ConstraintLayout 2.0. ConstraintLayout 2.0 is the new version of ConstraintLayout...

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