128 lines
4.1 KiB
Java
128 lines
4.1 KiB
Java
/*
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* Copyright (C) 2020 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.network;
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import static com.android.settingslib.wifi.WifiEnterpriseRestrictionUtils.isChangeWifiStateAllowed;
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import android.content.Context;
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import android.net.wifi.WifiManager;
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import androidx.lifecycle.Lifecycle;
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import androidx.lifecycle.LifecycleObserver;
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import androidx.lifecycle.OnLifecycleEvent;
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import androidx.preference.PreferenceScreen;
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import com.android.settings.R;
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import com.android.settings.overlay.FeatureFactory;
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import com.android.settings.widget.GenericSwitchController;
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import com.android.settings.wifi.WifiEnabler;
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import com.android.settingslib.RestrictedSwitchPreference;
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import com.android.settingslib.core.AbstractPreferenceController;
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import com.google.common.annotations.VisibleForTesting;
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/**
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* This controller helps to manage the state of wifi switch preference.
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*/
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public class WifiSwitchPreferenceController extends AbstractPreferenceController implements
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LifecycleObserver {
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public static final String KEY = "main_toggle_wifi";
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@VisibleForTesting
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boolean mIsChangeWifiStateAllowed;
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@VisibleForTesting
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WifiEnabler mWifiEnabler;
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private RestrictedSwitchPreference mPreference;
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public WifiSwitchPreferenceController(Context context, Lifecycle lifecycle) {
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super(context);
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if (lifecycle == null) {
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throw new IllegalArgumentException("Lifecycle must be set");
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}
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lifecycle.addObserver(this);
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mIsChangeWifiStateAllowed = isChangeWifiStateAllowed(context);
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}
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@Override
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public String getPreferenceKey() {
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return KEY;
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}
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@Override
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public boolean isAvailable() {
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return true;
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}
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@Override
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public void displayPreference(PreferenceScreen screen) {
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super.displayPreference(screen);
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mPreference = screen.findPreference(getPreferenceKey());
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if (mPreference == null) return;
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mPreference.setChecked(isWifiEnabled());
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if (!mIsChangeWifiStateAllowed) {
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mPreference.setEnabled(false);
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mPreference.setSummary(R.string.not_allowed_by_ent);
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}
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}
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/** Lifecycle.Event.ON_START */
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@OnLifecycleEvent(Lifecycle.Event.ON_START)
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public void onStart() {
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// Don't use WifiEnabler when user is not allowed to change Wi-Fi state,
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// Because the preference needs to be disabled when the user is not allowed to change the
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// Wi-Fi state, but WifiEnabler will enable the preference when the Wi-Fi state changes.
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if (mPreference != null && mIsChangeWifiStateAllowed) {
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mWifiEnabler = new WifiEnabler(mContext, new GenericSwitchController(mPreference),
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FeatureFactory.getFeatureFactory().getMetricsFeatureProvider());
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}
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}
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/** Lifecycle.Event.ON_STOP */
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@OnLifecycleEvent(Lifecycle.Event.ON_STOP)
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public void onStop() {
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if (mWifiEnabler != null) {
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mWifiEnabler.teardownSwitchController();
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}
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}
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/** Lifecycle.Event.ON_RESUME */
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@OnLifecycleEvent(Lifecycle.Event.ON_RESUME)
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public void onResume() {
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if (mWifiEnabler != null) {
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mWifiEnabler.resume(mContext);
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}
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}
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/** Lifecycle.Event.ON_PAUSE */
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@OnLifecycleEvent(Lifecycle.Event.ON_PAUSE)
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public void onPause() {
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if (mWifiEnabler != null) {
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mWifiEnabler.pause();
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}
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}
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private boolean isWifiEnabled() {
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WifiManager wifiManager = mContext.getSystemService(WifiManager.class);
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if (wifiManager == null) return false;
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return wifiManager.isWifiEnabled();
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}
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}
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