eb4fea1a36
To let fragment's view lifecycle owner passed in to controllers. For UI usage, view lifecycle owner is the best choice, controller could use this lifecycle owner to observe events and do UI related works. Usage DataSaverController as first example. Bug: 287005021 Test: Manually for DataSaverController Change-Id: Id965ea3a24d61f4d0ec6735632944f41f72ba06a
108 lines
3.7 KiB
Kotlin
108 lines
3.7 KiB
Kotlin
/*
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* Copyright (C) 2023 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.app.settings.SettingsEnums
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import android.content.Context
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import android.os.Bundle
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import android.telephony.SubscriptionManager
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import android.widget.Switch
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import com.android.settings.R
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import com.android.settings.SettingsActivity
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import com.android.settings.dashboard.DashboardFragment
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import com.android.settings.search.BaseSearchIndexProvider
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import com.android.settings.widget.SettingsMainSwitchBar
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import com.android.settingslib.search.SearchIndexable
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@SearchIndexable
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class DataSaverSummary : DashboardFragment() {
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private lateinit var switchBar: SettingsMainSwitchBar
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private lateinit var dataSaverBackend: DataSaverBackend
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// Flag used to avoid infinite loop due if user switch it on/off too quick.
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private var switching = false
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override fun onCreate(bundle: Bundle?) {
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super.onCreate(bundle)
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if (!requireContext().isDataSaverVisible()) {
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finishFragment()
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return
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}
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dataSaverBackend = DataSaverBackend(requireContext())
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}
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override fun onActivityCreated(savedInstanceState: Bundle?) {
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super.onActivityCreated(savedInstanceState)
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switchBar = (activity as SettingsActivity).switchBar.apply {
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setTitle(getString(R.string.data_saver_switch_title))
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show()
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addOnSwitchChangeListener { _: Switch, isChecked: Boolean ->
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onSwitchChanged(isChecked)
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}
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}
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}
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override fun onResume() {
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super.onResume()
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dataSaverBackend.addListener(dataSaverBackendListener)
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}
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override fun onPause() {
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super.onPause()
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dataSaverBackend.remListener(dataSaverBackendListener)
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}
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private fun onSwitchChanged(isChecked: Boolean) {
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synchronized(this) {
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if (!switching) {
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switching = true
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dataSaverBackend.isDataSaverEnabled = isChecked
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}
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}
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}
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override fun getPreferenceScreenResId() = R.xml.data_saver
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override fun getMetricsCategory() = SettingsEnums.DATA_SAVER_SUMMARY
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override fun getHelpResource() = R.string.help_url_data_saver
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override fun getLogTag() = TAG
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private val dataSaverBackendListener = object : DataSaverBackend.Listener {
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override fun onDataSaverChanged(isDataSaving: Boolean) {
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synchronized(this) {
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switchBar.isChecked = isDataSaving
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switching = false
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}
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}
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}
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companion object {
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private const val TAG = "DataSaverSummary"
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private fun Context.isDataSaverVisible(): Boolean =
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resources.getBoolean(R.bool.config_show_data_saver)
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@JvmField
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val SEARCH_INDEX_DATA_PROVIDER = object : BaseSearchIndexProvider(R.xml.data_saver) {
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override fun isPageSearchEnabled(context: Context): Boolean =
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context.isDataSaverVisible() &&
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DataUsageUtils.hasMobileData(context) &&
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(DataUsageUtils.getDefaultSubscriptionId(context) !=
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SubscriptionManager.INVALID_SUBSCRIPTION_ID)
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}
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}
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} |