/* * Copyright (C) 2010 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; import static android.net.wifi.WifiConfiguration.INVALID_NETWORK_ID; import static android.os.UserManager.DISALLOW_CONFIG_WIFI; import android.app.Activity; import android.app.Dialog; import android.content.BroadcastReceiver; import android.content.Context; import android.content.DialogInterface; import android.content.Intent; import android.content.IntentFilter; import android.content.SharedPreferences; import android.content.res.Resources; import android.content.res.TypedArray; import android.location.LocationManager; import android.net.ConnectivityManager; import android.net.NetworkInfo; import android.net.NetworkInfo.DetailedState; import android.net.NetworkScoreManager; import android.net.NetworkScorerAppManager; import android.net.NetworkScorerAppManager.NetworkScorerAppData; import android.net.wifi.ScanResult; import android.net.wifi.WifiConfiguration; import android.net.wifi.WifiInfo; import android.net.wifi.WifiManager; import android.net.wifi.WpsInfo; import android.os.Bundle; import android.os.Handler; import android.os.Message; import android.os.Parcelable; import android.preference.Preference; import android.preference.PreferenceScreen; import android.util.Log; import android.view.ContextMenu; import android.view.ContextMenu.ContextMenuInfo; import android.view.LayoutInflater; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.view.View; import android.view.View.OnClickListener; import android.widget.AdapterView.AdapterContextMenuInfo; import android.widget.Button; import android.widget.TextView; import android.widget.Toast; import com.android.settings.R; import com.android.settings.RestrictedSettingsFragment; import com.android.settings.SettingsActivity; import com.android.settings.search.BaseSearchIndexProvider; import com.android.settings.search.Indexable; import com.android.settings.search.SearchIndexableRaw; import java.util.ArrayList; import java.util.Collection; import java.util.Collections; import java.util.HashMap; import java.util.List; import java.util.concurrent.atomic.AtomicBoolean; /** * Two types of UI are provided here. * * The first is for "usual Settings", appearing as any other Setup fragment. * * The second is for Setup Wizard, with a simplified interface that hides the action bar * and menus. */ public class WifiSettings extends RestrictedSettingsFragment implements DialogInterface.OnClickListener, Indexable { private static final String TAG = "WifiSettings"; private static final int REQUEST_ENABLE_WIFI_ASSISTANT = 1; /* package */ static final int MENU_ID_WPS_PBC = Menu.FIRST; private static final int MENU_ID_WPS_PIN = Menu.FIRST + 1; private static final int MENU_ID_SAVED_NETWORK = Menu.FIRST + 2; /* package */ static final int MENU_ID_ADD_NETWORK = Menu.FIRST + 3; private static final int MENU_ID_ADVANCED = Menu.FIRST + 4; private static final int MENU_ID_SCAN = Menu.FIRST + 5; private static final int MENU_ID_CONNECT = Menu.FIRST + 6; private static final int MENU_ID_FORGET = Menu.FIRST + 7; private static final int MENU_ID_MODIFY = Menu.FIRST + 8; private static final int MENU_ID_WRITE_NFC = Menu.FIRST + 9; private static final String KEY_ASSISTANT_DISMISS_TIME = "wifi_assistant_dismiss_time"; private static final String KEY_ASSISTANT_START_TIME = "wifi_assistant_start_time"; private static final long MILI_SECONDS_30_DAYS = 30L * 24L * 60L * 60L * 1000L; private static final long MILI_SECONDS_90_DAYS = MILI_SECONDS_30_DAYS * 3L; private static final long MILI_SECONDS_180_DAYS = MILI_SECONDS_90_DAYS * 2L; public static final int WIFI_DIALOG_ID = 1; /* package */ static final int WPS_PBC_DIALOG_ID = 2; private static final int WPS_PIN_DIALOG_ID = 3; private static final int WRITE_NFC_DIALOG_ID = 6; // Combo scans can take 5-6s to complete - set to 10s. private static final int WIFI_RESCAN_INTERVAL_MS = 10 * 1000; // Instance state keys private static final String SAVE_DIALOG_EDIT_MODE = "edit_mode"; private static final String SAVE_DIALOG_ACCESS_POINT_STATE = "wifi_ap_state"; private static boolean savedNetworksExist; private final IntentFilter mFilter; private final BroadcastReceiver mReceiver; private final Scanner mScanner; /* package */ WifiManager mWifiManager; private WifiManager.ActionListener mConnectListener; private WifiManager.ActionListener mSaveListener; private WifiManager.ActionListener mForgetListener; private WifiEnabler mWifiEnabler; // An access point being editted is stored here. private AccessPoint mSelectedAccessPoint; private DetailedState mLastState; private WifiInfo mLastInfo; private final AtomicBoolean mConnected = new AtomicBoolean(false); private WifiDialog mDialog; private WriteWifiConfigToNfcDialog mWifiToNfcDialog; private TextView mEmptyView; // this boolean extra specifies whether to disable the Next button when not connected. Used by // account creation outside of setup wizard. private static final String EXTRA_ENABLE_NEXT_ON_CONNECT = "wifi_enable_next_on_connect"; // should Next button only be enabled when we have a connection? private boolean mEnableNextOnConnection; // Save the dialog details private boolean mDlgEdit; private AccessPoint mDlgAccessPoint; private Bundle mAccessPointSavedState; private View mWifiAssistantCard; private NetworkScorerAppData mWifiAssistantApp; /** verbose logging flag. this flag is set thru developer debugging options * and used so as to assist with in-the-field WiFi connectivity debugging */ public static int mVerboseLogging = 0; /* End of "used in Wifi Setup context" */ /** A restricted multimap for use in constructAccessPoints */ private static class Multimap { private final HashMap> store = new HashMap>(); /** retrieve a non-null list of values with key K */ List getAll(K key) { List values = store.get(key); return values != null ? values : Collections.emptyList(); } void put(K key, V val) { List curVals = store.get(key); if (curVals == null) { curVals = new ArrayList(3); store.put(key, curVals); } curVals.add(val); } } private static class Scanner extends Handler { private int mRetry = 0; private WifiSettings mWifiSettings = null; Scanner(WifiSettings wifiSettings) { mWifiSettings = wifiSettings; } void resume() { if (!hasMessages(0)) { sendEmptyMessage(0); } } void forceScan() { removeMessages(0); sendEmptyMessage(0); } void pause() { mRetry = 0; removeMessages(0); } @Override public void handleMessage(Message message) { if (mWifiSettings.mWifiManager.startScan()) { mRetry = 0; } else if (++mRetry >= 3) { mRetry = 0; Activity activity = mWifiSettings.getActivity(); if (activity != null) { Toast.makeText(activity, R.string.wifi_fail_to_scan, Toast.LENGTH_LONG).show(); } return; } sendEmptyMessageDelayed(0, WIFI_RESCAN_INTERVAL_MS); } } public WifiSettings() { super(DISALLOW_CONFIG_WIFI); mFilter = new IntentFilter(); mFilter.addAction(WifiManager.WIFI_STATE_CHANGED_ACTION); mFilter.addAction(WifiManager.SCAN_RESULTS_AVAILABLE_ACTION); mFilter.addAction(WifiManager.NETWORK_IDS_CHANGED_ACTION); mFilter.addAction(WifiManager.SUPPLICANT_STATE_CHANGED_ACTION); mFilter.addAction(WifiManager.CONFIGURED_NETWORKS_CHANGED_ACTION); mFilter.addAction(WifiManager.LINK_CONFIGURATION_CHANGED_ACTION); mFilter.addAction(WifiManager.NETWORK_STATE_CHANGED_ACTION); mFilter.addAction(WifiManager.RSSI_CHANGED_ACTION); mReceiver = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { handleEvent(intent); } }; mScanner = new Scanner(this); } @Override public void onActivityCreated(Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); mWifiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE); mConnectListener = new WifiManager.ActionListener() { @Override public void onSuccess() { } @Override public void onFailure(int reason) { Activity activity = getActivity(); if (activity != null) { Toast.makeText(activity, R.string.wifi_failed_connect_message, Toast.LENGTH_SHORT).show(); } } }; mSaveListener = new WifiManager.ActionListener() { @Override public void onSuccess() { } @Override public void onFailure(int reason) { Activity activity = getActivity(); if (activity != null) { Toast.makeText(activity, R.string.wifi_failed_save_message, Toast.LENGTH_SHORT).show(); } } }; mForgetListener = new WifiManager.ActionListener() { @Override public void onSuccess() { } @Override public void onFailure(int reason) { Activity activity = getActivity(); if (activity != null) { Toast.makeText(activity, R.string.wifi_failed_forget_message, Toast.LENGTH_SHORT).show(); } } }; if (savedInstanceState != null) { mDlgEdit = savedInstanceState.getBoolean(SAVE_DIALOG_EDIT_MODE); if (savedInstanceState.containsKey(SAVE_DIALOG_ACCESS_POINT_STATE)) { mAccessPointSavedState = savedInstanceState.getBundle(SAVE_DIALOG_ACCESS_POINT_STATE); } } // if we're supposed to enable/disable the Next button based on our current connection // state, start it off in the right state Intent intent = getActivity().getIntent(); mEnableNextOnConnection = intent.getBooleanExtra(EXTRA_ENABLE_NEXT_ON_CONNECT, false); if (mEnableNextOnConnection) { if (hasNextButton()) { final ConnectivityManager connectivity = (ConnectivityManager) getActivity().getSystemService(Context.CONNECTIVITY_SERVICE); if (connectivity != null) { NetworkInfo info = connectivity.getNetworkInfo( ConnectivityManager.TYPE_WIFI); changeNextButtonState(info.isConnected()); } } } addPreferencesFromResource(R.xml.wifi_settings); prepareWifiAssistantCard(); mEmptyView = (TextView) getView().findViewById(android.R.id.empty); getListView().setEmptyView(mEmptyView); registerForContextMenu(getListView()); setHasOptionsMenu(true); } @Override public void onActivityResult(int requestCode, int resultCode, Intent resultData) { if (requestCode == REQUEST_ENABLE_WIFI_ASSISTANT) { if (resultCode == Activity.RESULT_OK) { setWifiAssistantTimeout(); getListView().removeHeaderView(mWifiAssistantCard); mWifiAssistantApp = null; } } else { super.onActivityResult(requestCode, resultCode, resultData); } } @Override public void onDestroyView() { super.onDestroyView(); if (mWifiEnabler != null) { mWifiEnabler.teardownSwitchBar(); } } @Override public void onStart() { super.onStart(); // On/off switch is hidden for Setup Wizard (returns null) mWifiEnabler = createWifiEnabler(); } /** * @return new WifiEnabler or null (as overridden by WifiSettingsForSetupWizard) */ /* package */ WifiEnabler createWifiEnabler() { final SettingsActivity activity = (SettingsActivity) getActivity(); return new WifiEnabler(activity, activity.getSwitchBar()); } @Override public void onResume() { final Activity activity = getActivity(); super.onResume(); if (mWifiEnabler != null) { mWifiEnabler.resume(activity); } activity.registerReceiver(mReceiver, mFilter); updateAccessPoints(); } @Override public void onPause() { super.onPause(); if (mWifiEnabler != null) { mWifiEnabler.pause(); } getActivity().unregisterReceiver(mReceiver); mScanner.pause(); } @Override public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) { // If the user is not allowed to configure wifi, do not show the menu. if (isUiRestricted()) return; addOptionsMenuItems(menu); super.onCreateOptionsMenu(menu, inflater); } /** * @param menu */ void addOptionsMenuItems(Menu menu) { final boolean wifiIsEnabled = mWifiManager.isWifiEnabled(); TypedArray ta = getActivity().getTheme().obtainStyledAttributes( new int[] {R.attr.ic_menu_add, R.attr.ic_wps}); menu.add(Menu.NONE, MENU_ID_ADD_NETWORK, 0, R.string.wifi_add_network) .setIcon(ta.getDrawable(0)) .setEnabled(wifiIsEnabled) .setShowAsAction(MenuItem.SHOW_AS_ACTION_NEVER); if (savedNetworksExist) { menu.add(Menu.NONE, MENU_ID_SAVED_NETWORK, 0, R.string.wifi_saved_access_points_label) .setIcon(ta.getDrawable(0)) .setEnabled(wifiIsEnabled) .setShowAsAction(MenuItem.SHOW_AS_ACTION_NEVER); } menu.add(Menu.NONE, MENU_ID_SCAN, 0, R.string.menu_stats_refresh) .setEnabled(wifiIsEnabled) .setShowAsAction(MenuItem.SHOW_AS_ACTION_NEVER); menu.add(Menu.NONE, MENU_ID_ADVANCED, 0, R.string.wifi_menu_advanced) .setShowAsAction(MenuItem.SHOW_AS_ACTION_NEVER); ta.recycle(); } @Override public void onSaveInstanceState(Bundle outState) { super.onSaveInstanceState(outState); // If the dialog is showing, save its state. if (mDialog != null && mDialog.isShowing()) { outState.putBoolean(SAVE_DIALOG_EDIT_MODE, mDlgEdit); if (mDlgAccessPoint != null) { mAccessPointSavedState = new Bundle(); mDlgAccessPoint.saveWifiState(mAccessPointSavedState); outState.putBundle(SAVE_DIALOG_ACCESS_POINT_STATE, mAccessPointSavedState); } } } @Override public boolean onOptionsItemSelected(MenuItem item) { // If the user is not allowed to configure wifi, do not handle menu selections. if (isUiRestricted()) return false; switch (item.getItemId()) { case MENU_ID_WPS_PBC: showDialog(WPS_PBC_DIALOG_ID); return true; /* case MENU_ID_P2P: if (getActivity() instanceof SettingsActivity) { ((SettingsActivity) getActivity()).startPreferencePanel( WifiP2pSettings.class.getCanonicalName(), null, R.string.wifi_p2p_settings_title, null, this, 0); } else { startFragment(this, WifiP2pSettings.class.getCanonicalName(), R.string.wifi_p2p_settings_title, -1, null); } return true; */ case MENU_ID_WPS_PIN: showDialog(WPS_PIN_DIALOG_ID); return true; case MENU_ID_SCAN: if (mWifiManager.isWifiEnabled()) { mScanner.forceScan(); } return true; case MENU_ID_ADD_NETWORK: if (mWifiManager.isWifiEnabled()) { onAddNetworkPressed(); } return true; case MENU_ID_SAVED_NETWORK: if (getActivity() instanceof SettingsActivity) { ((SettingsActivity) getActivity()).startPreferencePanel( SavedAccessPointsWifiSettings.class.getCanonicalName(), null, R.string.wifi_saved_access_points_titlebar, null, this, 0); } else { startFragment(this, SavedAccessPointsWifiSettings.class.getCanonicalName(), R.string.wifi_saved_access_points_titlebar, -1 /* Do not request a result */, null); } return true; case MENU_ID_ADVANCED: if (getActivity() instanceof SettingsActivity) { ((SettingsActivity) getActivity()).startPreferencePanel( AdvancedWifiSettings.class.getCanonicalName(), null, R.string.wifi_advanced_titlebar, null, this, 0); } else { startFragment(this, AdvancedWifiSettings.class.getCanonicalName(), R.string.wifi_advanced_titlebar, -1 /* Do not request a results */, null); } return true; } return super.onOptionsItemSelected(item); } @Override public void onCreateContextMenu(ContextMenu menu, View view, ContextMenuInfo info) { if (info instanceof AdapterContextMenuInfo) { Preference preference = (Preference) getListView().getItemAtPosition( ((AdapterContextMenuInfo) info).position); if (preference instanceof AccessPoint) { mSelectedAccessPoint = (AccessPoint) preference; menu.setHeaderTitle(mSelectedAccessPoint.ssid); if (mSelectedAccessPoint.getLevel() != -1 && mSelectedAccessPoint.getState() == null) { menu.add(Menu.NONE, MENU_ID_CONNECT, 0, R.string.wifi_menu_connect); } if (mSelectedAccessPoint.networkId != INVALID_NETWORK_ID) { menu.add(Menu.NONE, MENU_ID_FORGET, 0, R.string.wifi_menu_forget); menu.add(Menu.NONE, MENU_ID_MODIFY, 0, R.string.wifi_menu_modify); if (mSelectedAccessPoint.security != AccessPoint.SECURITY_NONE) { // Only allow writing of NFC tags for password-protected networks. menu.add(Menu.NONE, MENU_ID_WRITE_NFC, 0, R.string.wifi_menu_write_to_nfc); } } } } } @Override public boolean onContextItemSelected(MenuItem item) { if (mSelectedAccessPoint == null) { return super.onContextItemSelected(item); } switch (item.getItemId()) { case MENU_ID_CONNECT: { if (mSelectedAccessPoint.networkId != INVALID_NETWORK_ID) { connect(mSelectedAccessPoint.networkId); } else if (mSelectedAccessPoint.security == AccessPoint.SECURITY_NONE) { /** Bypass dialog for unsecured networks */ mSelectedAccessPoint.generateOpenNetworkConfig(); connect(mSelectedAccessPoint.getConfig()); } else { showDialog(mSelectedAccessPoint, true); } return true; } case MENU_ID_FORGET: { mWifiManager.forget(mSelectedAccessPoint.networkId, mForgetListener); return true; } case MENU_ID_MODIFY: { showDialog(mSelectedAccessPoint, true); return true; } case MENU_ID_WRITE_NFC: showDialog(WRITE_NFC_DIALOG_ID); return true; } return super.onContextItemSelected(item); } @Override public boolean onPreferenceTreeClick(PreferenceScreen screen, Preference preference) { if (preference instanceof AccessPoint) { mSelectedAccessPoint = (AccessPoint) preference; /** Bypass dialog for unsecured, unsaved networks */ if (mSelectedAccessPoint.security == AccessPoint.SECURITY_NONE && mSelectedAccessPoint.networkId == INVALID_NETWORK_ID) { mSelectedAccessPoint.generateOpenNetworkConfig(); if (!savedNetworksExist) { savedNetworksExist = true; getActivity().invalidateOptionsMenu(); } connect(mSelectedAccessPoint.getConfig()); } else { showDialog(mSelectedAccessPoint, false); } } else { return super.onPreferenceTreeClick(screen, preference); } return true; } private void showDialog(AccessPoint accessPoint, boolean edit) { if (mDialog != null) { removeDialog(WIFI_DIALOG_ID); mDialog = null; } // Save the access point and edit mode mDlgAccessPoint = accessPoint; mDlgEdit = edit; showDialog(WIFI_DIALOG_ID); } @Override public Dialog onCreateDialog(int dialogId) { switch (dialogId) { case WIFI_DIALOG_ID: AccessPoint ap = mDlgAccessPoint; // For manual launch if (ap == null) { // For re-launch from saved state if (mAccessPointSavedState != null) { ap = new AccessPoint(getActivity(), mAccessPointSavedState); // For repeated orientation changes mDlgAccessPoint = ap; // Reset the saved access point data mAccessPointSavedState = null; } } // If it's null, fine, it's for Add Network mSelectedAccessPoint = ap; mDialog = new WifiDialog(getActivity(), this, ap, mDlgEdit); return mDialog; case WPS_PBC_DIALOG_ID: return new WpsDialog(getActivity(), WpsInfo.PBC); case WPS_PIN_DIALOG_ID: return new WpsDialog(getActivity(), WpsInfo.DISPLAY); case WRITE_NFC_DIALOG_ID: if (mSelectedAccessPoint != null) { mWifiToNfcDialog = new WriteWifiConfigToNfcDialog( getActivity(), mSelectedAccessPoint, mWifiManager); return mWifiToNfcDialog; } } return super.onCreateDialog(dialogId); } /** * Shows the latest access points available with supplemental information like * the strength of network and the security for it. */ private void updateAccessPoints() { // Safeguard from some delayed event handling if (getActivity() == null) return; if (isUiRestricted()) { addMessagePreference(R.string.wifi_empty_list_user_restricted); return; } final int wifiState = mWifiManager.getWifiState(); //when we update the screen, check if verbose logging has been turned on or off mVerboseLogging = mWifiManager.getVerboseLoggingLevel(); switch (wifiState) { case WifiManager.WIFI_STATE_ENABLED: // AccessPoints are automatically sorted with TreeSet. final Collection accessPoints = constructAccessPoints(getActivity(), mWifiManager, mLastInfo, mLastState); getPreferenceScreen().removeAll(); if (accessPoints.size() == 0) { addMessagePreference(R.string.wifi_empty_list_wifi_on); } getListView().removeHeaderView(mWifiAssistantCard); if (mWifiAssistantApp != null) { getListView().addHeaderView(mWifiAssistantCard); } for (AccessPoint accessPoint : accessPoints) { // Ignore access points that are out of range. if (accessPoint.getLevel() != -1) { getPreferenceScreen().addPreference(accessPoint); } } break; case WifiManager.WIFI_STATE_ENABLING: getPreferenceScreen().removeAll(); break; case WifiManager.WIFI_STATE_DISABLING: addMessagePreference(R.string.wifi_stopping); break; case WifiManager.WIFI_STATE_DISABLED: setOffMessage(); break; } } /** * Returns the Network Scorer for the Wifi Assistant App. */ public static NetworkScorerAppData getWifiAssistantApp(Context context) { Collection scorers = NetworkScorerAppManager.getAllValidScorers(context); if (scorers.isEmpty()) { return null; } // TODO: b/13780935 - Implement proper scorer selection. Rather than pick the first // scorer on the system, we should allow the user to select one. return scorers.iterator().next(); } private void prepareWifiAssistantCard() { if (getActivity() instanceof WifiPickerActivity) { return; } if (NetworkScorerAppManager.getActiveScorer(getActivity()) != null) { // A scorer is already enabled; don't show the card. return; } Collection scorers = NetworkScorerAppManager.getAllValidScorers(getActivity()); if (scorers.isEmpty()) { // No scorers are available to enable; don't show the card. return; } SharedPreferences sharedPreferences = getPreferenceScreen().getSharedPreferences(); long lastTimeoutEndTime = sharedPreferences.getLong(KEY_ASSISTANT_START_TIME, 0); long dismissTime = sharedPreferences.getLong(KEY_ASSISTANT_DISMISS_TIME, 0); if ((System.currentTimeMillis() - lastTimeoutEndTime) <= dismissTime) { return; } // TODO: b/13780935 - Implement proper scorer selection. Rather than pick the first // scorer on the system, we should allow the user to select one. mWifiAssistantApp = scorers.iterator().next(); if (mWifiAssistantCard == null) { mWifiAssistantCard = LayoutInflater.from(getActivity()) .inflate(R.layout.wifi_assistant_card, getListView(), false); Button setup = (Button) mWifiAssistantCard.findViewById(R.id.setup); Button noThanks = (Button) mWifiAssistantCard.findViewById(R.id.no_thanks_button); if (setup != null && noThanks != null) { setup.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { Intent intent = new Intent(); if (mWifiAssistantApp.mConfigurationActivityClassName != null) { // App has a custom configuration activity; launch that. // This custom activity will be responsible for launching the system // dialog. intent.setClassName(mWifiAssistantApp.mPackageName, mWifiAssistantApp.mConfigurationActivityClassName); } else { // Fall back on the system dialog. intent.setAction(NetworkScoreManager.ACTION_CHANGE_ACTIVE); intent.putExtra(NetworkScoreManager.EXTRA_PACKAGE_NAME, mWifiAssistantApp.mPackageName); } startActivityForResult(intent, REQUEST_ENABLE_WIFI_ASSISTANT); } }); noThanks.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { setWifiAssistantTimeout(); getListView().removeHeaderView(mWifiAssistantCard); mWifiAssistantApp = null; } }); } } } private void setWifiAssistantTimeout() { SharedPreferences sharedPreferences = getPreferenceScreen().getSharedPreferences(); SharedPreferences.Editor editor = sharedPreferences.edit(); long dismissTime = sharedPreferences.getLong(KEY_ASSISTANT_DISMISS_TIME, 0); if (dismissTime == 0) { dismissTime = MILI_SECONDS_30_DAYS; } else if (dismissTime == MILI_SECONDS_30_DAYS) { dismissTime = MILI_SECONDS_90_DAYS; } else if (dismissTime == MILI_SECONDS_90_DAYS) { dismissTime = MILI_SECONDS_180_DAYS; } else if (dismissTime == MILI_SECONDS_180_DAYS) { dismissTime = java.lang.Long.MAX_VALUE; } editor.putLong(KEY_ASSISTANT_DISMISS_TIME, dismissTime); editor.putLong(KEY_ASSISTANT_START_TIME, System.currentTimeMillis()); editor.apply(); } private void setOffMessage() { if (mEmptyView != null) { mEmptyView.setCompoundDrawablesWithIntrinsicBounds(0, R.drawable.ic_wifi_emptystate, 0, 0); mEmptyView.setText(R.string.wifi_empty_list_wifi_off); if (android.provider.Settings.Global.getInt(getActivity().getContentResolver(), android.provider.Settings.Global.WIFI_SCAN_ALWAYS_AVAILABLE, 0) == 1) { mEmptyView.append("\n\n"); int resId; if (android.provider.Settings.Secure.isLocationProviderEnabled( getActivity().getContentResolver(), LocationManager.NETWORK_PROVIDER)) { resId = R.string.wifi_scan_notify_text_location_on; } else { resId = R.string.wifi_scan_notify_text_location_off; } CharSequence charSeq = getText(resId); mEmptyView.append(charSeq); } } getPreferenceScreen().removeAll(); } private void addMessagePreference(int messageId) { if (mEmptyView != null) mEmptyView.setText(messageId); getPreferenceScreen().removeAll(); } /** Returns sorted list of access points */ private static List constructAccessPoints(Context context, WifiManager wifiManager, WifiInfo lastInfo, DetailedState lastState) { ArrayList accessPoints = new ArrayList(); /** Lookup table to more quickly update AccessPoints by only considering objects with the * correct SSID. Maps SSID -> List of AccessPoints with the given SSID. */ Multimap apMap = new Multimap(); final List configs = wifiManager.getConfiguredNetworks(); if (configs != null) { savedNetworksExist = (configs.size() > 0); for (WifiConfiguration config : configs) { AccessPoint accessPoint = new AccessPoint(context, config); if (lastInfo != null && lastState != null) { accessPoint.update(lastInfo, lastState); } accessPoints.add(accessPoint); apMap.put(accessPoint.ssid, accessPoint); } } final List results = wifiManager.getScanResults(); if (results != null) { for (ScanResult result : results) { // Ignore hidden and ad-hoc networks. if (result.SSID == null || result.SSID.length() == 0 || result.capabilities.contains("[IBSS]")) { continue; } boolean found = false; for (AccessPoint accessPoint : apMap.getAll(result.SSID)) { if (accessPoint.update(result)) found = true; } if (!found) { AccessPoint accessPoint = new AccessPoint(context, result); accessPoints.add(accessPoint); apMap.put(accessPoint.ssid, accessPoint); } } } // Pre-sort accessPoints to speed preference insertion Collections.sort(accessPoints); return accessPoints; } private void handleEvent(Intent intent) { String action = intent.getAction(); if (WifiManager.WIFI_STATE_CHANGED_ACTION.equals(action)) { updateWifiState(intent.getIntExtra(WifiManager.EXTRA_WIFI_STATE, WifiManager.WIFI_STATE_UNKNOWN)); } else if (WifiManager.SCAN_RESULTS_AVAILABLE_ACTION.equals(action) || WifiManager.CONFIGURED_NETWORKS_CHANGED_ACTION.equals(action) || WifiManager.LINK_CONFIGURATION_CHANGED_ACTION.equals(action)) { updateAccessPoints(); } else if (WifiManager.NETWORK_STATE_CHANGED_ACTION.equals(action)) { NetworkInfo info = (NetworkInfo) intent.getParcelableExtra( WifiManager.EXTRA_NETWORK_INFO); mConnected.set(info.isConnected()); changeNextButtonState(info.isConnected()); updateAccessPoints(); updateConnectionState(info.getDetailedState()); } else if (WifiManager.RSSI_CHANGED_ACTION.equals(action)) { updateConnectionState(null); } } private void updateConnectionState(DetailedState state) { /* sticky broadcasts can call this when wifi is disabled */ if (!mWifiManager.isWifiEnabled()) { mScanner.pause(); return; } if (state == DetailedState.OBTAINING_IPADDR) { mScanner.pause(); } else { mScanner.resume(); } mLastInfo = mWifiManager.getConnectionInfo(); if (state != null) { mLastState = state; } for (int i = getPreferenceScreen().getPreferenceCount() - 1; i >= 0; --i) { // Maybe there's a WifiConfigPreference Preference preference = getPreferenceScreen().getPreference(i); if (preference instanceof AccessPoint) { final AccessPoint accessPoint = (AccessPoint) preference; accessPoint.update(mLastInfo, mLastState); } } } private void updateWifiState(int state) { Activity activity = getActivity(); if (activity != null) { activity.invalidateOptionsMenu(); } switch (state) { case WifiManager.WIFI_STATE_ENABLED: mScanner.resume(); return; // not break, to avoid the call to pause() below case WifiManager.WIFI_STATE_ENABLING: addMessagePreference(R.string.wifi_starting); break; case WifiManager.WIFI_STATE_DISABLED: setOffMessage(); break; } mLastInfo = null; mLastState = null; mScanner.pause(); } /** * Renames/replaces "Next" button when appropriate. "Next" button usually exists in * Wifi setup screens, not in usual wifi settings screen. * * @param enabled true when the device is connected to a wifi network. */ private void changeNextButtonState(boolean enabled) { if (mEnableNextOnConnection && hasNextButton()) { getNextButton().setEnabled(enabled); } } @Override public void onClick(DialogInterface dialogInterface, int button) { if (button == WifiDialog.BUTTON_FORGET && mSelectedAccessPoint != null) { forget(); } else if (button == WifiDialog.BUTTON_SUBMIT) { if (mDialog != null) { submit(mDialog.getController()); } } } /* package */ void submit(WifiConfigController configController) { final WifiConfiguration config = configController.getConfig(); if (config == null) { if (mSelectedAccessPoint != null && mSelectedAccessPoint.networkId != INVALID_NETWORK_ID) { connect(mSelectedAccessPoint.networkId); } } else if (config.networkId != INVALID_NETWORK_ID) { if (mSelectedAccessPoint != null) { mWifiManager.save(config, mSaveListener); } } else { if (configController.isEdit()) { mWifiManager.save(config, mSaveListener); } else { connect(config); } } if (mWifiManager.isWifiEnabled()) { mScanner.resume(); } updateAccessPoints(); } /* package */ void forget() { if (mSelectedAccessPoint.networkId == INVALID_NETWORK_ID) { // Should not happen, but a monkey seems to trigger it Log.e(TAG, "Failed to forget invalid network " + mSelectedAccessPoint.getConfig()); return; } mWifiManager.forget(mSelectedAccessPoint.networkId, mForgetListener); if (mWifiManager.isWifiEnabled()) { mScanner.resume(); } updateAccessPoints(); // We need to rename/replace "Next" button in wifi setup context. changeNextButtonState(false); } protected void connect(final WifiConfiguration config) { mWifiManager.connect(config, mConnectListener); } protected void connect(final int networkId) { mWifiManager.connect(networkId, mConnectListener); } /** * Refreshes acccess points and ask Wifi module to scan networks again. */ /* package */ void refreshAccessPoints() { if (mWifiManager.isWifiEnabled()) { mScanner.resume(); } getPreferenceScreen().removeAll(); } /** * Called when "add network" button is pressed. */ /* package */ void onAddNetworkPressed() { // No exact access point is selected. mSelectedAccessPoint = null; showDialog(null, true); } /* package */ int getAccessPointsCount() { final boolean wifiIsEnabled = mWifiManager.isWifiEnabled(); if (wifiIsEnabled) { return getPreferenceScreen().getPreferenceCount(); } else { return 0; } } /** * Requests wifi module to pause wifi scan. May be ignored when the module is disabled. */ /* package */ void pauseWifiScan() { if (mWifiManager.isWifiEnabled()) { mScanner.pause(); } } /** * Requests wifi module to resume wifi scan. May be ignored when the module is disabled. */ /* package */ void resumeWifiScan() { if (mWifiManager.isWifiEnabled()) { mScanner.resume(); } } @Override protected int getHelpResource() { return R.string.help_url_wifi; } public static final SearchIndexProvider SEARCH_INDEX_DATA_PROVIDER = new BaseSearchIndexProvider() { @Override public List getRawDataToIndex(Context context, boolean enabled) { final List result = new ArrayList(); final Resources res = context.getResources(); // Add fragment title SearchIndexableRaw data = new SearchIndexableRaw(context); data.title = res.getString(R.string.wifi_settings); data.screenTitle = res.getString(R.string.wifi_settings); data.keywords = res.getString(R.string.keywords_wifi); result.add(data); // Add available Wi-Fi access points WifiManager wifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE); final Collection accessPoints = constructAccessPoints(context, wifiManager, null, null); for (AccessPoint accessPoint : accessPoints) { // We are indexing only the saved Wi-Fi networks. if (accessPoint.getConfig() == null) continue; data = new SearchIndexableRaw(context); data.title = accessPoint.getTitle().toString(); data.screenTitle = res.getString(R.string.wifi_settings); data.enabled = enabled; result.add(data); } return result; } }; }