44.5 Creating a Lifecycle Owner
The final task in this chapter is to create a custom lifecycle owner class and demonstrate how to trigger events and modify the lifecycle state from within that class.
Add a new class by right-clicking on the app -> java -> com.ebookfrenzy.lifecycledemo entry in the Project tool window and selecting the New -> Kotlin File/Class... menu option. Name the class DemoOwner in the Create Class dialog and change the Kind menu to Class before clicking on the OK button. With the new DemoOwner.kt file loaded into the code editor, modify it as follows:
package com.ebookfrenzy.lifecycledemo
import androidx.lifecycle.Lifecycle
import androidx.lifecycle.LifecycleOwner
import androidx.lifecycle.LifecycleRegistry
class DemoOwner: LifecycleOwner {
}
The class is going to need a LifecycleRegistry instance initialized with a reference to itself, and a getLifecycle() method configured to return the LifecycleRegistry instance...