add capability of providing settings metadata asynchronously (9f83d959) · Commits · e / os / android_frameworks_base

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

+4 −4

Original line number	Diff line number	Diff line
		@@ -28,10 +28,10 @@ import androidx.annotation.StringRes
		*
		* Besides the existing APIs, subclass could integrate with following interface to provide more
		* information:
		* - [PreferenceTitleProvider]: provide dynamic title content
		* - [PreferenceSummaryProvider]: provide dynamic summary content (e.g. based on preference value)
		* - [PreferenceIconProvider]: provide dynamic icon content (e.g. based on flag)
		* - [PreferenceAvailabilityProvider]: provide preference availability (e.g. based on flag)
		* - [AsyncPreferenceTitleProvider]/[PreferenceTitleProvider]: provide dynamic title content
		* - [AsyncPreferenceSummaryProvider]/[PreferenceSummaryProvider]: provide dynamic summary content (e.g. based on preference value)
		* - [AsyncPreferenceIconProvider]/[PreferenceIconProvider]: provide dynamic icon content (e.g. based on flag)
		* - [AsyncPreferenceAvailabilityProvider]/[PreferenceAvailabilityProvider]: provide preference availability (e.g. based on flag)
		* - [PreferenceLifecycleProvider]: provide the lifecycle callbacks and notify state change
		*
		* Notes:

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

+92 −6

Original line number	Diff line number	Diff line
		@@ -27,12 +27,30 @@ import androidx.fragment.app.FragmentManager
		import com.android.settingslib.datastore.KeyValueStore
		import kotlinx.coroutines.CoroutineScope


		// A standard pattern in this file is an Async* interface which has a suspend function suffixed with
		// Async and then a synchronous subinterface with no prefixes or suffixes. Ideally the async version
		// would be unprefixed/suffixed and we would have Synchronous* subinterfaces - but as we are quite
		// deep into migrations with the current structure, and changes now would slow things now - this
		// structure will be used. We should later rename these classes.

		/**
		* Interface to provide dynamic preference title.
		*
		* Implement this interface implies that the preference title should not be cached for indexing.
		*/
		interface PreferenceTitleProvider {
		interface AsyncPreferenceTitleProvider {

		/** Provides preference title. */
		suspend fun getTitleAsync(context: Context): CharSequence?
		}

		/**
		* Interface to provide dynamic preference title synchronously
		*/
		interface PreferenceTitleProvider : AsyncPreferenceTitleProvider {

		override suspend fun getTitleAsync(context: Context) = getTitle(context)

		/** Provides preference title. */
		fun getTitle(context: Context): CharSequence?
		@@ -44,7 +62,22 @@ interface PreferenceTitleProvider {
		* This is used to add more context to the title, and it is effective only when building indexable
		* data in [PreferenceSearchIndexablesProvider].
		*/
		interface PreferenceIndexableTitleProvider {
		interface AsyncPreferenceIndexableTitleProvider {

		/** Provides preference indexable title. */
		suspend fun getIndexableTitleAsync(context: Context): CharSequence?
		}


		/**
		* Provides preference title to be shown in search result.
		*
		* This is used to add more context to the title, and it is effective only when building indexable
		* data in [PreferenceSearchIndexablesProvider].
		*/
		interface PreferenceIndexableTitleProvider : AsyncPreferenceIndexableTitleProvider {

		override suspend fun getIndexableTitleAsync(context: Context) = getIndexableTitle(context)

		/** Provides preference indexable title. */
		fun getIndexableTitle(context: Context): CharSequence?
		@@ -55,7 +88,19 @@ interface PreferenceIndexableTitleProvider {
		*
		* Implement this interface implies that the preference summary should not be cached for indexing.
		*/
		interface PreferenceSummaryProvider {
		interface AsyncPreferenceSummaryProvider {
		/** Provides preference summary. */
		suspend fun getSummaryAsync(context: Context): CharSequence?
		}

		/**
		* Interface to provide dynamic preference summary synchronously.
		*
		* Implement this interface implies that the preference summary should not be cached for indexing.
		*/
		interface PreferenceSummaryProvider : AsyncPreferenceSummaryProvider {

		override suspend fun getSummaryAsync(context: Context) = getSummary(context)

		/** Provides preference summary. */
		fun getSummary(context: Context): CharSequence?
		@@ -66,14 +111,41 @@ interface PreferenceSummaryProvider {
		*
		* Implement this interface implies that the preference icon should not be cached for indexing.
		*/
		interface PreferenceIconProvider {
		interface AsyncPreferenceIconProvider {
		/** Provides preference icon. */
		suspend fun getIconAsync(context: Context): Int
		}

		/**
		* Interface to provide dynamic preference icon synchronously.
		*
		* Implement this interface implies that the preference icon should not be cached for indexing.
		*/
		interface PreferenceIconProvider : AsyncPreferenceIconProvider {

		override suspend fun getIconAsync(context: Context) = getIcon(context)

		/** Provides preference icon. */
		fun getIcon(context: Context): Int
		}

		/** Interface to provide the state of preference availability. */
		interface PreferenceAvailabilityProvider {
		interface AsyncPreferenceAvailabilityProvider {
		/**
		* Provides preference availability.
		*
		* When unavailable (i.e. `false` returned),
		* - UI framework normally does not show the preference widget.
		* - If it is a preference screen, all children may be disabled (depends on UI framework
		* implementation).
		*/
		suspend fun isAvailableAsync(context: Context): Boolean
		}

		/** Interface to provide the state of preference availability synchronously. */
		interface PreferenceAvailabilityProvider : AsyncPreferenceAvailabilityProvider {

		override suspend fun isAvailableAsync(context: Context) = isAvailable(context)

		/**
		* Returns if the preference is available.
		@@ -92,7 +164,21 @@ interface PreferenceAvailabilityProvider {
		* See [Managed configurations](https://developer.android.com/work/managed-configurations) for the
		* Android Enterprise support.
		*/
		interface PreferenceRestrictionProvider {
		interface AsyncPreferenceRestrictionProvider {

		/** Returns if preference is restricted by managed configs. */
		suspend fun isRestrictedAsync(context: Context): Boolean
		}

		/**
		* Interface to provide the managed configuration state of the preference.
		*
		* See [Managed configurations](https://developer.android.com/work/managed-configurations) for the
		* Android Enterprise support.
		*/
		interface PreferenceRestrictionProvider : AsyncPreferenceRestrictionProvider {

		override suspend fun isRestrictedAsync(context: Context) = isRestricted(context)

		/** Returns if preference is restricted by managed configs. */
		fun isRestricted(context: Context): Boolean

packages/SettingsLib/Metadata/tests/src/com/android/settingslib/metadata/PreferenceStateProvidersTest.kt

0 → 100644

+96 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2025 The Android Open Source Project
		*
		* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS,
		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		* See the License for the specific language governing permissions and
		* limitations under the License.
		*/

		package com.android.settingslib.metadata

		import android.content.Context
		import androidx.test.core.app.ApplicationProvider
		import androidx.test.ext.junit.runners.AndroidJUnit4
		import com.google.common.truth.Truth.assertThat
		import kotlinx.coroutines.runBlocking
		import org.junit.Test
		import org.junit.runner.RunWith
		import org.mockito.kotlin.doReturn
		import org.mockito.kotlin.mock

		@RunWith(AndroidJUnit4::class)
		class PreferenceStateProvidersTest {
		private val context: Context = ApplicationProvider.getApplicationContext()

		private val screen = mock<PreferenceScreenMetadata>()
		private val subScreen = mock<PreferenceScreenMetadata>()
		private val preference = mock<PreferenceMetadata> { on { key } doReturn "key" }

		@Test
		fun PreferenceTitleProvider_getTitleAsync_delegatesToGetTitle() = runBlocking {
		val provider =
		object : PreferenceTitleProvider {
		override fun getTitle(context: Context) = "title"
		}

		assertThat(provider.getTitleAsync(context)).isEqualTo("title")
		}

		@Test
		fun PreferenceIndexableTitleProvider_getIndexableTitleAsync_delegatesToGetIndexableTitle() = runBlocking {
		val provider =
		object : PreferenceIndexableTitleProvider {
		override fun getIndexableTitle(context: Context) = "indexable title"
		}

		assertThat(provider.getIndexableTitleAsync(context)).isEqualTo("indexable title")
		}

		@Test
		fun PreferenceSummaryProvider_getSummaryAsync_delegatesToGetSummary() = runBlocking {
		val provider =
		object : PreferenceSummaryProvider {
		override fun getSummary(context: Context) = "summary"
		}

		assertThat(provider.getSummaryAsync(context)).isEqualTo("summary")
		}

		@Test
		fun PreferenceIconProvider_getIconAsync_delegatesToGetIcon() = runBlocking {
		val provider =
		object : PreferenceIconProvider {
		override fun getIcon(context: Context) = 1
		}

		assertThat(provider.getIconAsync(context)).isEqualTo(1)
		}

		@Test
		fun PreferenceAvailabilityProvider_isAvailableAsync_delegatesToIsAvailable() = runBlocking {
		val provider =
		object : PreferenceAvailabilityProvider {
		override fun isAvailable(context: Context) = true
		}

		assertThat(provider.isAvailableAsync(context)).isTrue()
		}

		@Test
		fun PreferenceRestrictionProvider_isRestrictedAsync_delegatesToIsRestricted() = runBlocking {
		val provider =
		object : PreferenceRestrictionProvider {
		override fun isRestricted(context: Context) = true
		}

		assertThat(provider.isRestrictedAsync(context)).isTrue()
		}
		}