AdvancedWifiSettings.java revision 829c556645c5ce6ca18e6e0104ab42d3d4dc8bc2 
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
17package com.android.settings.wifi;
18
19import android.content.Context;
20import android.net.wifi.WifiInfo;
21import android.net.wifi.WifiManager;
22import android.os.Bundle;
23import android.preference.CheckBoxPreference;
24import android.preference.ListPreference;
25import android.preference.Preference;
26import android.preference.PreferenceScreen;
27import android.provider.Settings;
28import android.provider.Settings.Secure;
29import android.text.TextUtils;
30import android.util.Log;
31import android.widget.Toast;
32
33import com.android.settings.R;
34import com.android.settings.SettingsPreferenceFragment;
35import com.android.settings.Utils;
36
37public class AdvancedWifiSettings extends SettingsPreferenceFragment
38        implements Preference.OnPreferenceChangeListener {
39
40    private static final String TAG = "AdvancedWifiSettings";
41    private static final String KEY_MAC_ADDRESS = "mac_address";
42    private static final String KEY_CURRENT_IP_ADDRESS = "current_ip_address";
43    private static final String KEY_FREQUENCY_BAND = "frequency_band";
44    private static final String KEY_NOTIFY_OPEN_NETWORKS = "notify_open_networks";
45    private static final String KEY_SLEEP_POLICY = "sleep_policy";
46    private static final String KEY_ENABLE_WIFI_WATCHDOG = "wifi_enable_watchdog_service";
47
48    private WifiManager mWifiManager;
49
50    @Override
51    public void onCreate(Bundle savedInstanceState) {
52        super.onCreate(savedInstanceState);
53        addPreferencesFromResource(R.xml.wifi_advanced_settings);
54    }
55
56    @Override
57    public void onActivityCreated(Bundle savedInstanceState) {
58        super.onActivityCreated(savedInstanceState);
59        mWifiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE);
60    }
61
62    @Override
63    public void onResume() {
64        super.onResume();
65        initPreferences();
66        refreshWifiInfo();
67    }
68
69    private void initPreferences() {
70        CheckBoxPreference notifyOpenNetworks =
71            (CheckBoxPreference) findPreference(KEY_NOTIFY_OPEN_NETWORKS);
72        notifyOpenNetworks.setChecked(Secure.getInt(getContentResolver(),
73                Secure.WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON, 0) == 1);
74        notifyOpenNetworks.setEnabled(mWifiManager.isWifiEnabled());
75
76        CheckBoxPreference watchdogEnabled =
77            (CheckBoxPreference) findPreference(KEY_ENABLE_WIFI_WATCHDOG);
78        watchdogEnabled.setChecked(Secure.getInt(getContentResolver(),
79                Secure.WIFI_WATCHDOG_ON, 1) == 1);
80
81        ListPreference frequencyPref = (ListPreference) findPreference(KEY_FREQUENCY_BAND);
82
83        if (mWifiManager.isDualBandSupported()) {
84            frequencyPref.setOnPreferenceChangeListener(this);
85            int value = mWifiManager.getFrequencyBand();
86            if (value != -1) {
87                frequencyPref.setValue(String.valueOf(value));
88            } else {
89                Log.e(TAG, "Failed to fetch frequency band");
90            }
91        } else {
92            if (frequencyPref != null) {
93                // null if it has already been removed before resume
94                getPreferenceScreen().removePreference(frequencyPref);
95            }
96        }
97
98        ListPreference sleepPolicyPref = (ListPreference) findPreference(KEY_SLEEP_POLICY);
99        if (sleepPolicyPref != null) {
100            if (Utils.isWifiOnly(getActivity())) {
101                sleepPolicyPref.setEntries(R.array.wifi_sleep_policy_entries_wifi_only);
102            }
103            sleepPolicyPref.setOnPreferenceChangeListener(this);
104            int value = Settings.System.getInt(getContentResolver(),
105                    Settings.System.WIFI_SLEEP_POLICY,
106                    Settings.System.WIFI_SLEEP_POLICY_NEVER);
107            String stringValue = String.valueOf(value);
108            sleepPolicyPref.setValue(stringValue);
109            updateSleepPolicySummary(sleepPolicyPref, stringValue);
110        }
111    }
112
113    private void updateSleepPolicySummary(Preference sleepPolicyPref, String value) {
114        if (value != null) {
115            String[] values = getResources().getStringArray(R.array.wifi_sleep_policy_values);
116            final int summaryArrayResId = Utils.isWifiOnly(getActivity()) ?
117                    R.array.wifi_sleep_policy_entries_wifi_only : R.array.wifi_sleep_policy_entries;
118            String[] summaries = getResources().getStringArray(summaryArrayResId);
119            for (int i = 0; i < values.length; i++) {
120                if (value.equals(values[i])) {
121                    if (i < summaries.length) {
122                        sleepPolicyPref.setSummary(summaries[i]);
123                        return;
124                    }
125                }
126            }
127        }
128
129        sleepPolicyPref.setSummary("");
130        Log.e(TAG, "Invalid sleep policy value: " + value);
131    }
132
133    @Override
134    public boolean onPreferenceTreeClick(PreferenceScreen screen, Preference preference) {
135        String key = preference.getKey();
136
137        if (KEY_NOTIFY_OPEN_NETWORKS.equals(key)) {
138            Secure.putInt(getContentResolver(),
139                    Secure.WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON,
140                    ((CheckBoxPreference) preference).isChecked() ? 1 : 0);
141        } else if (KEY_ENABLE_WIFI_WATCHDOG.equals(key)) {
142            Secure.putInt(getContentResolver(),
143                    Secure.WIFI_WATCHDOG_ON,
144                    ((CheckBoxPreference) preference).isChecked() ? 1 : 0);
145        } else {
146            return super.onPreferenceTreeClick(screen, preference);
147        }
148        return true;
149    }
150
151    @Override
152    public boolean onPreferenceChange(Preference preference, Object newValue) {
153        String key = preference.getKey();
154
155        if (KEY_FREQUENCY_BAND.equals(key)) {
156            try {
157                mWifiManager.setFrequencyBand(Integer.parseInt((String) newValue), true);
158            } catch (NumberFormatException e) {
159                Toast.makeText(getActivity(), R.string.wifi_setting_frequency_band_error,
160                        Toast.LENGTH_SHORT).show();
161                return false;
162            }
163        }
164
165        if (KEY_SLEEP_POLICY.equals(key)) {
166            try {
167                String stringValue = (String) newValue;
168                Settings.System.putInt(getContentResolver(), Settings.System.WIFI_SLEEP_POLICY,
169                        Integer.parseInt(stringValue));
170                updateSleepPolicySummary(preference, stringValue);
171            } catch (NumberFormatException e) {
172                Toast.makeText(getActivity(), R.string.wifi_setting_sleep_policy_error,
173                        Toast.LENGTH_SHORT).show();
174                return false;
175            }
176        }
177
178        return true;
179    }
180
181    private void refreshWifiInfo() {
182        WifiInfo wifiInfo = mWifiManager.getConnectionInfo();
183
184        Preference wifiMacAddressPref = findPreference(KEY_MAC_ADDRESS);
185        String macAddress = wifiInfo == null ? null : wifiInfo.getMacAddress();
186        wifiMacAddressPref.setSummary(!TextUtils.isEmpty(macAddress) ? macAddress
187                : getActivity().getString(R.string.status_unavailable));
188
189        Preference wifiIpAddressPref = findPreference(KEY_CURRENT_IP_ADDRESS);
190        String ipAddress = Utils.getWifiIpAddresses(getActivity());
191        wifiIpAddressPref.setSummary(ipAddress == null ?
192                getActivity().getString(R.string.status_unavailable) : ipAddress);
193    }
194
195}
196