| /* |
| * 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.car.settings.wifi; |
| |
| import android.annotation.Nullable; |
| import android.content.Context; |
| import android.net.NetworkInfo; |
| import android.net.wifi.WifiConfiguration; |
| import android.net.wifi.WifiManager; |
| |
| import androidx.annotation.UiThread; |
| |
| import com.android.settingslib.wifi.AccessPoint; |
| import com.android.settingslib.wifi.WifiTracker; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * Manages Wifi configuration: e.g. monitors wifi states, change wifi setting etc. |
| */ |
| public class CarWifiManager implements WifiTracker.WifiListener { |
| private final Context mContext; |
| private final List<Listener> mListeners = new ArrayList<>(); |
| private boolean mStarted; |
| |
| private WifiTracker mWifiTracker; |
| private WifiManager mWifiManager; |
| |
| public interface Listener { |
| /** |
| * Something about wifi setting changed. |
| */ |
| void onAccessPointsChanged(); |
| |
| /** |
| * Called when the state of Wifi has changed, the state will be one of |
| * the following. |
| * |
| * <li>{@link WifiManager#WIFI_STATE_DISABLED}</li> |
| * <li>{@link WifiManager#WIFI_STATE_ENABLED}</li> |
| * <li>{@link WifiManager#WIFI_STATE_DISABLING}</li> |
| * <li>{@link WifiManager#WIFI_STATE_ENABLING}</li> |
| * <li>{@link WifiManager#WIFI_STATE_UNKNOWN}</li> |
| * <p> |
| * |
| * @param state The new state of wifi. |
| */ |
| void onWifiStateChanged(int state); |
| } |
| |
| public CarWifiManager(Context context) { |
| mContext = context; |
| mWifiManager = mContext.getSystemService(WifiManager.class); |
| mWifiTracker = new WifiTracker(context, this, true, true); |
| } |
| |
| /** |
| * Adds {@link Listener}. |
| */ |
| public boolean addListener(Listener listener) { |
| return mListeners.add(listener); |
| } |
| |
| /** |
| * Removes {@link Listener}. |
| */ |
| public boolean removeListener(Listener listener) { |
| return mListeners.remove(listener); |
| } |
| |
| /** |
| * Starts {@link CarWifiManager}. |
| * This should be called only from main thread. |
| */ |
| @UiThread |
| public void start() { |
| if (!mStarted) { |
| mStarted = true; |
| mWifiTracker.onStart(); |
| } |
| } |
| |
| /** |
| * Stops {@link CarWifiManager}. |
| * This should be called only from main thread. |
| */ |
| @UiThread |
| public void stop() { |
| if (mStarted) { |
| mStarted = false; |
| mWifiTracker.onStop(); |
| } |
| } |
| |
| /** |
| * Destroys {@link CarWifiManager} |
| * This should only be called from main thread. |
| */ |
| @UiThread |
| public void destroy() { |
| mWifiTracker.onDestroy(); |
| } |
| |
| /** |
| * Returns a list of all reachable access points. |
| */ |
| public List<AccessPoint> getAllAccessPoints() { |
| return getAccessPoints(false); |
| } |
| |
| /** |
| * Returns a list of saved access points. |
| */ |
| public List<AccessPoint> getSavedAccessPoints() { |
| return getAccessPoints(true); |
| } |
| |
| private List<AccessPoint> getAccessPoints(boolean saved) { |
| List<AccessPoint> accessPoints = new ArrayList<AccessPoint>(); |
| if (mWifiManager.isWifiEnabled()) { |
| for (AccessPoint accessPoint : mWifiTracker.getAccessPoints()) { |
| // ignore out of reach access points. |
| if (shouldIncludeAp(accessPoint, saved)) { |
| accessPoints.add(accessPoint); |
| } |
| } |
| } |
| return accessPoints; |
| } |
| |
| private boolean shouldIncludeAp(AccessPoint accessPoint, boolean saved) { |
| return saved ? accessPoint.isReachable() && accessPoint.isSaved() |
| : accessPoint.isReachable(); |
| } |
| |
| @Nullable |
| public AccessPoint getConnectedAccessPoint() { |
| for (AccessPoint accessPoint : getAllAccessPoints()) { |
| if (accessPoint.getDetailedState() == NetworkInfo.DetailedState.CONNECTED) { |
| return accessPoint; |
| } |
| } |
| return null; |
| } |
| |
| /** |
| * Returns {@code true} if Wifi is enabled |
| */ |
| public boolean isWifiEnabled() { |
| return mWifiManager.isWifiEnabled(); |
| } |
| |
| /** |
| * Returns {@code true} if Wifi tethering is enabled |
| */ |
| public boolean isWifiApEnabled() { |
| return mWifiManager.isWifiApEnabled(); |
| } |
| |
| /** |
| * Gets {@link WifiConfiguration} for tethering |
| */ |
| public WifiConfiguration getWifiApConfig() { |
| return mWifiManager.getWifiApConfiguration(); |
| } |
| |
| /** |
| * Sets {@link WifiConfiguration} for tethering |
| */ |
| public void setWifiApConfig(WifiConfiguration config) { |
| mWifiManager.setWifiApConfiguration(config); |
| } |
| |
| /** |
| * Gets the country code in ISO 3166 format. |
| */ |
| public String getCountryCode() { |
| return mWifiManager.getCountryCode(); |
| } |
| |
| /** |
| * Checks if the chipset supports dual frequency band (2.4 GHz and 5 GHz). |
| */ |
| public boolean isDualBandSupported() { |
| return mWifiManager.isDualBandSupported(); |
| } |
| |
| /** |
| * Check if the chipset requires conversion of 5GHz Only apBand to ANY. |
| * @return {@code true} if required, {@code false} otherwise. |
| */ |
| public boolean isDualModeSupported() { |
| return mWifiManager.isDualModeSupported(); |
| } |
| |
| /** Gets the wifi state from {@link WifiManager}. */ |
| public int getWifiState() { |
| return mWifiManager.getWifiState(); |
| } |
| |
| /** Sets whether wifi is enabled. */ |
| public boolean setWifiEnabled(boolean enabled) { |
| return mWifiManager.setWifiEnabled(enabled); |
| } |
| |
| /** Connects to an public wifi access point. */ |
| public void connectToPublicWifi(AccessPoint accessPoint, WifiManager.ActionListener listener) { |
| accessPoint.generateOpenNetworkConfig(); |
| mWifiManager.connect(accessPoint.getConfig(), listener); |
| } |
| |
| /** Connects to a saved access point. */ |
| public void connectToSavedWifi(AccessPoint accessPoint, WifiManager.ActionListener listener) { |
| if (accessPoint.isSaved()) { |
| mWifiManager.connect(accessPoint.getConfig(), listener); |
| } |
| } |
| |
| @Override |
| public void onWifiStateChanged(int state) { |
| for (Listener listener : mListeners) { |
| listener.onWifiStateChanged(state); |
| } |
| } |
| |
| @Override |
| public void onConnectedChanged() { |
| } |
| |
| @Override |
| public void onAccessPointsChanged() { |
| for (Listener listener : mListeners) { |
| listener.onAccessPointsChanged(); |
| } |
| } |
| } |