Saving Data on Android

Adding LiveData to the project
If you check out your app's 
build.gradle
 file, you can find the following code:
// architecture components
 
implementation 
"androidx.arch.core:core-common:$androidx_common"
 
implementation  
"androidx.lifecycle:lifecycle-common:$lifecycle_components"
 
implementation  
"androidx.lifecycle:lifecycle-extensions:$lifecycle_components"
By adding the 
core
 and 
lifecycle
 dependencies, you add some of Android Jetpack's 
fundamental components, which are related to the Android lifecycle. This also 
includes the 
LiveData
 component, so you can use it, without changing anything.
Saving Data on Android Chapter 9: Using Room with Google's Architecture Components
raywenderlich.com
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