In this episode, we talk about the different parts of Android architecture components. We've had episodes on Room and the paging library, so in this one, we thought we'll touch a little on Lifecycle Owners & Observers, ViewModels, and LiveData. Akshay Chordiya helps break it down. Listen on!

Show Notes

• Android Architecture Components

Lifecycle

• Handling lifecycles with Lifecycle-Aware Components
• Lifecycle Owner
• Lifecycle Observer
• Best practices for lifecycle-aware components
• Caveat: handling onStop events

ViewModels

• Architecture Guide: ViewModels
• View Model

Code snippet for a ViewModelFactory:

class UserVMFactory(val user: MyUser) : ViewModelProvider.Factory {override fun create(modelClass: Class): T {return when {modelClass.isAssignableFrom(UserVM::class.java) ->UserVM(user) as Telse -> throw IllegalArgumentException("Unknown ViewModel class")}}}

LiveData

• Live Data
• MediatorLiveData

Misc

• Android Architecture Components Deep Dive Course on Caster.IO
• Fragmented - Room episode with Florina
• Fragmented - AAC Paging library with Florina

Sponsors

• Microsoft AppCenter - Sign up now on appcenter.ms and spend less time managing your app lifecycle and more time coding.

Contact

• @Akshay_Chordiya [twitter.com]
• @fragmentedcast [twitter.com]
• @donnfelker and 📷 donnfelker
• @kaushikgopal and 📷 kaushikgopal