| /* |
| * Copyright (C) 2017 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.settings.wifi.p2p; |
| |
| import android.content.BroadcastReceiver; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.net.wifi.WifiManager; |
| import android.support.annotation.VisibleForTesting; |
| import android.support.v7.preference.Preference; |
| import android.support.v7.preference.PreferenceScreen; |
| |
| import com.android.settings.core.PreferenceControllerMixin; |
| import com.android.settingslib.core.AbstractPreferenceController; |
| import com.android.settingslib.core.lifecycle.Lifecycle; |
| import com.android.settingslib.core.lifecycle.LifecycleObserver; |
| import com.android.settingslib.core.lifecycle.events.OnPause; |
| import com.android.settingslib.core.lifecycle.events.OnResume; |
| |
| /** |
| * {@link PreferenceControllerMixin} to toggle Wifi Direct preference on Wi-Fi state. |
| */ |
| public class WifiP2pPreferenceController extends AbstractPreferenceController |
| implements PreferenceControllerMixin, LifecycleObserver, OnPause, OnResume { |
| |
| private static final String KEY_WIFI_DIRECT = "wifi_direct"; |
| |
| private final WifiManager mWifiManager; |
| @VisibleForTesting |
| final BroadcastReceiver mReceiver = new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| togglePreferences(); |
| } |
| }; |
| private final IntentFilter mFilter = new IntentFilter(WifiManager.WIFI_STATE_CHANGED_ACTION); |
| |
| private Preference mWifiDirectPref; |
| |
| public WifiP2pPreferenceController( |
| Context context, Lifecycle lifecycle, WifiManager wifiManager) { |
| super(context); |
| mWifiManager = wifiManager; |
| lifecycle.addObserver(this); |
| } |
| |
| @Override |
| public void displayPreference(PreferenceScreen screen) { |
| super.displayPreference(screen); |
| mWifiDirectPref = screen.findPreference(KEY_WIFI_DIRECT); |
| togglePreferences(); |
| } |
| |
| @Override |
| public void onResume() { |
| mContext.registerReceiver(mReceiver, mFilter); |
| } |
| |
| @Override |
| public void onPause() { |
| mContext.unregisterReceiver(mReceiver); |
| } |
| |
| @Override |
| public boolean isAvailable() { |
| // Always show preference. |
| return true; |
| } |
| @Override |
| public String getPreferenceKey() { |
| return KEY_WIFI_DIRECT; |
| } |
| |
| private void togglePreferences() { |
| if (mWifiDirectPref != null) { |
| mWifiDirectPref.setEnabled(mWifiManager.isWifiEnabled()); |
| } |
| } |
| } |