src/com/android/settings/wifi/AdvancedWifiSettings.java

   1 /*
   2  * Copyright (C) 2011 The Android Open Source Project
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *      http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 package com.android.settings.wifi;
  18
  19 import android.app.Dialog;
  20 import android.app.DialogFragment;
  21 import android.content.BroadcastReceiver;
  22 import android.content.Context;
  23 import android.content.Intent;
  24 import android.content.IntentFilter;
  25 import android.net.NetworkScoreManager;
  26 import android.net.NetworkScorerAppManager;
  27 import android.net.NetworkScorerAppManager.NetworkScorerAppData;
  28 import android.net.wifi.WifiInfo;
  29 import android.net.wifi.WifiManager;
  30 import android.net.wifi.WpsInfo;
  31 import android.os.Bundle;
  32 import android.preference.CheckBoxPreference;
  33 import android.preference.ListPreference;
  34 import android.preference.Preference;
  35 import android.preference.Preference.OnPreferenceClickListener;
  36 import android.preference.PreferenceScreen;
  37 import android.preference.SwitchPreference;
  38 import android.provider.Settings;
  39 import android.provider.Settings.Global;
  40 import android.security.Credentials;
  41 import android.text.TextUtils;
  42 import android.util.Log;
  43 import android.widget.Toast;
  44
  45 import com.android.settings.R;
  46 import com.android.settings.SettingsPreferenceFragment;
  47 import com.android.settings.Utils;
  48
  49 import java.util.Collection;
  50
  51 public class AdvancedWifiSettings extends SettingsPreferenceFragment
  52         implements Preference.OnPreferenceChangeListener {
  53
  54     private static final String TAG = "AdvancedWifiSettings";
  55     private static final String KEY_MAC_ADDRESS = "mac_address";
  56     private static final String KEY_CURRENT_IP_ADDRESS = "current_ip_address";
  57     private static final String KEY_FREQUENCY_BAND = "frequency_band";
  58     private static final String KEY_NOTIFY_OPEN_NETWORKS = "notify_open_networks";
  59     private static final String KEY_SLEEP_POLICY = "sleep_policy";
  60     private static final String KEY_SCAN_ALWAYS_AVAILABLE = "wifi_scan_always_available";
  61     private static final String KEY_INSTALL_CREDENTIALS = "install_credentials";
  62     private static final String KEY_WIFI_ASSISTANT = "wifi_assistant";
  63     private static final String KEY_WIFI_DIRECT = "wifi_direct";
  64     private static final String KEY_WPS_PUSH = "wps_push_button";
  65     private static final String KEY_WPS_PIN = "wps_pin_entry";
  66
  67     private WifiManager mWifiManager;
  68     private NetworkScoreManager mNetworkScoreManager;
  69
  70     private IntentFilter mFilter;
  71     private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
  72         @Override
  73         public void onReceive(Context context, Intent intent) {
  74             String action = intent.getAction();
  75             if (action.equals(WifiManager.LINK_CONFIGURATION_CHANGED_ACTION) ||
  76                 action.equals(WifiManager.NETWORK_STATE_CHANGED_ACTION)) {
  77                 refreshWifiInfo();
  78             }
  79         }
  80     };
  81
  82     @Override
  83     public void onCreate(Bundle savedInstanceState) {
  84         super.onCreate(savedInstanceState);
  85         addPreferencesFromResource(R.xml.wifi_advanced_settings);
  86     }
  87
  88     @Override
  89     public void onActivityCreated(Bundle savedInstanceState) {
  90         super.onActivityCreated(savedInstanceState);
  91         mWifiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE);
  92         mFilter = new IntentFilter();
  93         mFilter.addAction(WifiManager.LINK_CONFIGURATION_CHANGED_ACTION);
  94         mFilter.addAction(WifiManager.NETWORK_STATE_CHANGED_ACTION);
  95         mNetworkScoreManager =
  96                 (NetworkScoreManager) getSystemService(Context.NETWORK_SCORE_SERVICE);
  97     }
  98
  99     @Override
 100     public void onResume() {
 101         super.onResume();
 102         initPreferences();
 103         getActivity().registerReceiver(mReceiver, mFilter);
 104         refreshWifiInfo();
 105     }
 106
 107     @Override
 108     public void onPause() {
 109         super.onPause();
 110         getActivity().unregisterReceiver(mReceiver);
 111     }
 112
 113     private void initPreferences() {
 114         SwitchPreference notifyOpenNetworks =
 115             (SwitchPreference) findPreference(KEY_NOTIFY_OPEN_NETWORKS);
 116         notifyOpenNetworks.setChecked(Settings.Global.getInt(getContentResolver(),
 117                 Settings.Global.WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON, 0) == 1);
 118         notifyOpenNetworks.setEnabled(mWifiManager.isWifiEnabled());
 119
 120         SwitchPreference scanAlwaysAvailable =
 121             (SwitchPreference) findPreference(KEY_SCAN_ALWAYS_AVAILABLE);
 122         scanAlwaysAvailable.setChecked(Global.getInt(getContentResolver(),
 123                     Global.WIFI_SCAN_ALWAYS_AVAILABLE, 0) == 1);
 124
 125         Intent intent = new Intent(Credentials.INSTALL_AS_USER_ACTION);
 126         intent.setClassName("com.android.certinstaller",
 127                 "com.android.certinstaller.CertInstallerMain");
 128         intent.putExtra(Credentials.EXTRA_INSTALL_AS_UID, android.os.Process.WIFI_UID);
 129         Preference pref = findPreference(KEY_INSTALL_CREDENTIALS);
 130         pref.setIntent(intent);
 131
 132         final Context context = getActivity();
 133         NetworkScorerAppData scorer = WifiSettings.getWifiAssistantApp(context);
 134         SwitchPreference wifiAssistant = (SwitchPreference)findPreference(KEY_WIFI_ASSISTANT);
 135         if (scorer != null) {
 136             final boolean checked = NetworkScorerAppManager.getActiveScorer(context) != null;
 137             wifiAssistant.setSummary(getResources().getString(
 138                     R.string.wifi_automatically_manage_summary, scorer.mScorerName));
 139             wifiAssistant.setOnPreferenceChangeListener(this);
 140             wifiAssistant.setChecked(checked);
 141         } else {
 142             if (wifiAssistant != null) {
 143                 getPreferenceScreen().removePreference(wifiAssistant);
 144             }
 145         }
 146
 147         Intent wifiDirectIntent = new Intent(context,
 148                 com.android.settings.Settings.WifiP2pSettingsActivity.class);
 149         Preference wifiDirectPref = findPreference(KEY_WIFI_DIRECT);
 150         wifiDirectPref.setIntent(wifiDirectIntent);
 151
 152         // WpsDialog: Create the dialog like WifiSettings does.
 153         Preference wpsPushPref = findPreference(KEY_WPS_PUSH);
 154         wpsPushPref.setOnPreferenceClickListener(new OnPreferenceClickListener() {
 155                 public boolean onPreferenceClick(Preference arg0) {
 156                     WpsFragment wpsFragment = new WpsFragment(WpsInfo.PBC);
 157                     wpsFragment.show(getFragmentManager(), KEY_WPS_PUSH);
 158                     return true;
 159                 }
 160         });
 161
 162         // WpsDialog: Create the dialog like WifiSettings does.
 163         Preference wpsPinPref = findPreference(KEY_WPS_PIN);
 164         wpsPinPref.setOnPreferenceClickListener(new OnPreferenceClickListener(){
 165                 public boolean onPreferenceClick(Preference arg0) {
 166                     WpsFragment wpsFragment = new WpsFragment(WpsInfo.DISPLAY);
 167                     wpsFragment.show(getFragmentManager(), KEY_WPS_PIN);
 168                     return true;
 169                 }
 170         });
 171
 172         ListPreference frequencyPref = (ListPreference) findPreference(KEY_FREQUENCY_BAND);
 173
 174         if (mWifiManager.isDualBandSupported()) {
 175             frequencyPref.setOnPreferenceChangeListener(this);
 176             int value = mWifiManager.getFrequencyBand();
 177             if (value != -1) {
 178                 frequencyPref.setValue(String.valueOf(value));
 179                 updateFrequencyBandSummary(frequencyPref, value);
 180             } else {
 181                 Log.e(TAG, "Failed to fetch frequency band");
 182             }
 183         } else {
 184             if (frequencyPref != null) {
 185                 // null if it has already been removed before resume
 186                 getPreferenceScreen().removePreference(frequencyPref);
 187             }
 188         }
 189
 190         ListPreference sleepPolicyPref = (ListPreference) findPreference(KEY_SLEEP_POLICY);
 191         if (sleepPolicyPref != null) {
 192             if (Utils.isWifiOnly(context)) {
 193                 sleepPolicyPref.setEntries(R.array.wifi_sleep_policy_entries_wifi_only);
 194             }
 195             sleepPolicyPref.setOnPreferenceChangeListener(this);
 196             int value = Settings.Global.getInt(getContentResolver(),
 197                     Settings.Global.WIFI_SLEEP_POLICY,
 198                     Settings.Global.WIFI_SLEEP_POLICY_NEVER);
 199             String stringValue = String.valueOf(value);
 200             sleepPolicyPref.setValue(stringValue);
 201             updateSleepPolicySummary(sleepPolicyPref, stringValue);
 202         }
 203     }
 204
 205     private void updateSleepPolicySummary(Preference sleepPolicyPref, String value) {
 206         if (value != null) {
 207             String[] values = getResources().getStringArray(R.array.wifi_sleep_policy_values);
 208             final int summaryArrayResId = Utils.isWifiOnly(getActivity()) ?
 209                     R.array.wifi_sleep_policy_entries_wifi_only : R.array.wifi_sleep_policy_entries;
 210             String[] summaries = getResources().getStringArray(summaryArrayResId);
 211             for (int i = 0; i < values.length; i++) {
 212                 if (value.equals(values[i])) {
 213                     if (i < summaries.length) {
 214                         sleepPolicyPref.setSummary(summaries[i]);
 215                         return;
 216                     }
 217                 }
 218             }
 219         }
 220
 221         sleepPolicyPref.setSummary("");
 222         Log.e(TAG, "Invalid sleep policy value: " + value);
 223     }
 224
 225     private void updateFrequencyBandSummary(Preference frequencyBandPref, int index) {
 226         String[] summaries = getResources().getStringArray(R.array.wifi_frequency_band_entries);
 227         frequencyBandPref.setSummary(summaries[index]);
 228     }
 229
 230     @Override
 231     public boolean onPreferenceTreeClick(PreferenceScreen screen, Preference preference) {
 232         String key = preference.getKey();
 233
 234         if (KEY_NOTIFY_OPEN_NETWORKS.equals(key)) {
 235             Global.putInt(getContentResolver(),
 236                     Settings.Global.WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON,
 237                     ((SwitchPreference) preference).isChecked() ? 1 : 0);
 238         } else if (KEY_SCAN_ALWAYS_AVAILABLE.equals(key)) {
 239             Global.putInt(getContentResolver(),
 240                     Global.WIFI_SCAN_ALWAYS_AVAILABLE,
 241                     ((SwitchPreference) preference).isChecked() ? 1 : 0);
 242         } else {
 243             return super.onPreferenceTreeClick(screen, preference);
 244         }
 245         return true;
 246     }
 247
 248     @Override
 249     public boolean onPreferenceChange(Preference preference, Object newValue) {
 250         final Context context = getActivity();
 251         String key = preference.getKey();
 252
 253         if (KEY_FREQUENCY_BAND.equals(key)) {
 254             try {
 255                 int value = Integer.parseInt((String) newValue);
 256                 mWifiManager.setFrequencyBand(value, true);
 257                 updateFrequencyBandSummary(preference, value);
 258             } catch (NumberFormatException e) {
 259                 Toast.makeText(context, R.string.wifi_setting_frequency_band_error,
 260                         Toast.LENGTH_SHORT).show();
 261                 return false;
 262             }
 263         } else if (KEY_WIFI_ASSISTANT.equals(key)) {
 264             if (((Boolean)newValue).booleanValue() == false) {
 265                 mNetworkScoreManager.setActiveScorer(null);
 266                 return true;
 267             }
 268
 269             NetworkScorerAppData wifiAssistant = WifiSettings.getWifiAssistantApp(context);
 270             Intent intent = new Intent();
 271             if (wifiAssistant.mConfigurationActivityClassName != null) {
 272                 // App has a custom configuration activity; launch that.
 273                 // This custom activity will be responsible for launching the system
 274                 // dialog.
 275                 intent.setClassName(wifiAssistant.mPackageName,
 276                         wifiAssistant.mConfigurationActivityClassName);
 277             } else {
 278                 // Fall back on the system dialog.
 279                 intent.setAction(NetworkScoreManager.ACTION_CHANGE_ACTIVE);
 280                 intent.putExtra(NetworkScoreManager.EXTRA_PACKAGE_NAME,
 281                         wifiAssistant.mPackageName);
 282             }
 283
 284             startActivity(intent);
 285         }
 286
 287         if (KEY_SLEEP_POLICY.equals(key)) {
 288             try {
 289                 String stringValue = (String) newValue;
 290                 Settings.Global.putInt(getContentResolver(), Settings.Global.WIFI_SLEEP_POLICY,
 291                         Integer.parseInt(stringValue));
 292                 updateSleepPolicySummary(preference, stringValue);
 293             } catch (NumberFormatException e) {
 294                 Toast.makeText(context, R.string.wifi_setting_sleep_policy_error,
 295                         Toast.LENGTH_SHORT).show();
 296                 return false;
 297             }
 298         }
 299
 300         return true;
 301     }
 302
 303     private void refreshWifiInfo() {
 304         final Context context = getActivity();
 305         WifiInfo wifiInfo = mWifiManager.getConnectionInfo();
 306
 307         Preference wifiMacAddressPref = findPreference(KEY_MAC_ADDRESS);
 308         String macAddress = wifiInfo == null ? null : wifiInfo.getMacAddress();
 309         wifiMacAddressPref.setSummary(!TextUtils.isEmpty(macAddress) ? macAddress
 310                 : context.getString(R.string.status_unavailable));
 311         wifiMacAddressPref.setSelectable(false);
 312
 313         Preference wifiIpAddressPref = findPreference(KEY_CURRENT_IP_ADDRESS);
 314         String ipAddress = Utils.getWifiIpAddresses(context);
 315         wifiIpAddressPref.setSummary(ipAddress == null ?
 316                 context.getString(R.string.status_unavailable) : ipAddress);
 317         wifiIpAddressPref.setSelectable(false);
 318     }
 319
 320     /* Wrapper class for the WPS dialog to properly handle life cycle events like rotation. */
 321     public static class WpsFragment extends DialogFragment {
 322         private static int mWpsSetup;
 323
 324         // Public default constructor is required for rotation.
 325         public WpsFragment() {
 326             super();
 327         }
 328
 329         public WpsFragment(int wpsSetup) {
 330             super();
 331             mWpsSetup = wpsSetup;
 332         }
 333
 334         @Override
 335         public Dialog onCreateDialog(Bundle savedInstanceState) {
 336             return new WpsDialog(getActivity(), mWpsSetup);
 337         }
 338     }
 339
 340 }