83708d4499
Change the signature from metadata to preference key, so that the API could be used to notify other preferences on the same screen. NO_IFTTT=Catalyst only Bug: 332201912 Flag: com.android.settings.flags.catalyst Test: atest Change-Id: Ibdf5f9004471d5491a0be1e84365cbe9f136c373
79 lines
2.8 KiB
Kotlin
79 lines
2.8 KiB
Kotlin
/*
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* Copyright (C) 2024 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.settings.datausage
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import android.content.Context
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import com.android.settings.R
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import com.android.settings.widget.MainSwitchBarMetadata
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import com.android.settingslib.datastore.KeyValueStore
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import com.android.settingslib.datastore.NoOpKeyedObservable
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import com.android.settingslib.metadata.PreferenceLifecycleContext
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import com.android.settingslib.metadata.PreferenceLifecycleProvider
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import com.android.settingslib.metadata.ReadWritePermit
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class DataSaverMainSwitchPreference(context: Context) :
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MainSwitchBarMetadata, PreferenceLifecycleProvider {
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private val dataSaverBackend = DataSaverBackend(context)
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private var dataSaverBackendListener: DataSaverBackend.Listener? = null
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override val key
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get() = KEY
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override val title
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get() = R.string.data_saver_switch_title
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override fun storage(context: Context): KeyValueStore = DataSaverStore(dataSaverBackend)
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override fun getReadPermit(context: Context, myUid: Int, callingUid: Int) =
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ReadWritePermit.ALLOW
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override fun getWritePermit(context: Context, value: Boolean?, myUid: Int, callingUid: Int) =
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ReadWritePermit.ALLOW
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override fun onStart(context: PreferenceLifecycleContext) {
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val listener = DataSaverBackend.Listener { context.notifyPreferenceChange(KEY) }
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dataSaverBackendListener = listener
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dataSaverBackend.addListener(listener)
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}
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override fun onStop(context: PreferenceLifecycleContext) {
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dataSaverBackendListener?.let {
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dataSaverBackend.remListener(it)
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dataSaverBackendListener = null
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}
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}
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@Suppress("UNCHECKED_CAST")
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private class DataSaverStore(private val dataSaverBackend: DataSaverBackend) :
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NoOpKeyedObservable<String>(), KeyValueStore {
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override fun contains(key: String) = true // just assume the datastore contains the value
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override fun <T : Any> getValue(key: String, valueType: Class<T>): T? =
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dataSaverBackend.isDataSaverEnabled as T?
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override fun <T : Any> setValue(key: String, valueType: Class<T>, value: T?) {
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dataSaverBackend.isDataSaverEnabled = value as Boolean
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}
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}
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companion object {
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const val KEY = "use_data_saver"
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}
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}
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