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Commit c9fad939 authored by Jacky Wang's avatar Jacky Wang
Browse files

[Catalyst] Add PreferenceLifecycleContext.requirePreference 

Bug: 332201912
Flag: EXEMPT library
Test: N/A
Change-Id: Ic74bf2a0bb2aaaa333db8aa3752c33a523722217
parent 2d0e124d

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

+7 −0
Original line number Diff line number Diff line
@@ -136,6 +136,13 @@ abstract class PreferenceLifecycleContext(context: Context) : ContextWrapper(con 
    /** Returns the preference widget object associated with given key. */

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



    /**

     * Returns the preference widget object associated with given key.

     *

     * @throws NullPointerException if preference is not found

     */

    abstract fun <T : Any> requirePreference(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

+2 −0
Original line number Diff line number Diff line
@@ -60,6 +60,8 @@ class PreferenceScreenBindingHelper( 
            override fun <T> findPreference(key: String) =

                preferenceScreen.findPreference(key) as T?



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



            override fun notifyPreferenceChange(key: String) =

                notifyChange(key, CHANGE_REASON_STATE)