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Commit a3431940 authored by Jacky Wang's avatar Jacky Wang
Browse files

[Catalyst] Add PreferenceLifecycleContext.findPreference 

The API will be helpful for interactions between preference widgets.

Bug: 332201912
Flag: EXEMPT library
Test: N/A
Change-Id: I3087cd2635daad6712d9a278551b81da38018767
parent d8fca48d

packages/SettingsLib/Metadata/src/com/android/settingslib/metadata/PreferenceStateProviders.kt

+3 −0
Original line number Diff line number Diff line
@@ -133,6 +133,9 @@ interface PreferenceLifecycleProvider { 
 */

abstract class PreferenceLifecycleContext(context: Context) : ContextWrapper(context) {



    /** Returns the preference widget object associated with given key. */

    abstract fun <T> findPreference(key: String): T?



    /** Notifies that preference state of given key is changed and updates preference widget UI. */

    abstract fun notifyPreferenceChange(key: String)

packages/SettingsLib/Preference/src/com/android/settingslib/preference/PreferenceScreenBindingHelper.kt

+3 −0
Original line number Diff line number Diff line
@@ -57,6 +57,9 @@ class PreferenceScreenBindingHelper( 


    private val preferenceLifecycleContext =

        object : PreferenceLifecycleContext(context) {

            override fun <T> findPreference(key: String) =

                preferenceScreen.findPreference(key) as T?



            override fun notifyPreferenceChange(key: String) =

                notifyChange(key, CHANGE_REASON_STATE)