PreferenceComparisonCallback

Kotlin |Java

abstract class PreferenceComparisonCallback

kotlin.Any
↳	androidx.preference.PreferenceManager.PreferenceComparisonCallback

Known Direct Subclasses

A basic implementation of PreferenceComparisonCallback suitable for use with the default Preference classes.

Callback class to be used by the androidx.recyclerview.widget.RecyclerView.Adapter associated with the PreferenceScreen, used to determine when two Preference objects are semantically and visually the same.

Summary

Public constructors
`<init>()` Callback class to be used by the `androidx.recyclerview.widget.RecyclerView.Adapter` associated with the `PreferenceScreen`, used to determine when two `Preference` objects are semantically and visually the same.

Public methods
abstract Boolean	`arePreferenceContentsTheSame(p1: Preference!, p2: Preference!)` Called to determine if two `Preference` objects will display the same data
abstract Boolean	`arePreferenceItemsTheSame(p1: Preference!, p2: Preference!)` Called to determine if two `Preference` objects represent the same item

PreferenceComparisonCallback()

abstract fun arePreferenceContentsTheSame(
    p1: Preference!, 
    p2: Preference!
): Boolean

Called to determine if two Preference objects will display the same data

Parameters
`p1`	Preference!: `Preference` object to compare
`p2`	Preference!: `Preference` object to compare

Return
`Boolean`	`true` if the objects are visually identical

abstract fun arePreferenceItemsTheSame(
    p1: Preference!, 
    p2: Preference!
): Boolean

Called to determine if two Preference objects represent the same item

Parameters
`p1`	Preference!: `Preference` object to compare
`p2`	Preference!: `Preference` object to compare

Return
`Boolean`	`true` if the objects represent the same item