| /* |
| * 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.ActivityManager; |
| 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.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.NetworkInfo.State; |
| 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.nfc.NfcAdapter; |
| import android.os.Bundle; |
| import android.os.Handler; |
| import android.os.Message; |
| import android.os.UserHandle; |
| import android.preference.Preference; |
| import android.preference.PreferenceScreen; |
| import android.util.Log; |
| import android.view.ContextMenu; |
| import android.view.ContextMenu.ContextMenuInfo; |
| import android.view.Menu; |
| import android.view.MenuInflater; |
| import android.view.MenuItem; |
| import android.view.View; |
| import android.widget.AdapterView.AdapterContextMenuInfo; |
| 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"; |
| |
| /* 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; |
| |
| 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 NetworkInfo mLastNetworkInfo; |
| 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"; |
| // This string extra specifies a network to open the connect dialog on, so the user can enter |
| // network credentials. This is used by quick settings for secured networks. |
| private static final String EXTRA_START_CONNECT_SSID = "wifi_start_connect_ssid"; |
| |
| // 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; |
| |
| /** 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<K,V> { |
| private final HashMap<K,List<V>> store = new HashMap<K,List<V>>(); |
| /** retrieve a non-null list of values with key K */ |
| List<V> getAll(K key) { |
| List<V> values = store.get(key); |
| return values != null ? values : Collections.<V>emptyList(); |
| } |
| |
| void put(K key, V val) { |
| List<V> curVals = store.get(key); |
| if (curVals == null) { |
| curVals = new ArrayList<V>(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); |
| |
| mEmptyView = initEmptyView(); |
| registerForContextMenu(getListView()); |
| setHasOptionsMenu(true); |
| |
| if (intent.hasExtra(EXTRA_START_CONNECT_SSID)) { |
| String ssid = intent.getStringExtra(EXTRA_START_CONNECT_SSID); |
| updateAccessPoints(); |
| PreferenceScreen preferenceScreen = getPreferenceScreen(); |
| for (int i = 0; i < preferenceScreen.getPreferenceCount(); i++) { |
| Preference preference = preferenceScreen.getPreference(i); |
| if (preference instanceof AccessPoint) { |
| AccessPoint accessPoint = (AccessPoint) preference; |
| if (ssid.equals(accessPoint.ssid) && accessPoint.networkId == -1 |
| && accessPoint.security != AccessPoint.SECURITY_NONE) { |
| onPreferenceTreeClick(preferenceScreen, preference); |
| break; |
| } |
| } |
| } |
| } |
| } |
| |
| @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) { |
| if (mSelectedAccessPoint.getState() == null) { |
| menu.add(Menu.NONE, MENU_ID_CONNECT, 0, R.string.wifi_menu_connect); |
| } |
| } |
| |
| if (ActivityManager.getCurrentUser() == UserHandle.USER_OWNER && |
| (mSelectedAccessPoint.networkId != INVALID_NETWORK_ID || |
| (mSelectedAccessPoint.getNetworkInfo() != null && |
| mSelectedAccessPoint.getNetworkInfo().getState() != State.DISCONNECTED))) { |
| // Allow forgetting a network if the current user is the owner and either the |
| // network is saved or ephemerally connected. (In the latter case, "forget" |
| // blacklists the network so it won't be used again, ephemerally). |
| menu.add(Menu.NONE, MENU_ID_FORGET, 0, R.string.wifi_menu_forget); |
| } |
| if (mSelectedAccessPoint.networkId != INVALID_NETWORK_ID) { |
| menu.add(Menu.NONE, MENU_ID_MODIFY, 0, R.string.wifi_menu_modify); |
| NfcAdapter nfcAdapter = NfcAdapter.getDefaultAdapter(getActivity()); |
| if (nfcAdapter != null && nfcAdapter.isEnabled() && |
| 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: { |
| forget(); |
| 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, and inactive networks */ |
| if (mSelectedAccessPoint.security == AccessPoint.SECURITY_NONE && |
| mSelectedAccessPoint.networkId == INVALID_NETWORK_ID && |
| !mSelectedAccessPoint.isActive()) { |
| 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<AccessPoint> accessPoints = |
| constructAccessPoints(getActivity(), mWifiManager, mLastInfo, |
| mLastNetworkInfo); |
| getPreferenceScreen().removeAll(); |
| if (accessPoints.size() == 0) { |
| addMessagePreference(R.string.wifi_empty_list_wifi_on); |
| } |
| |
| 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; |
| } |
| } |
| |
| protected TextView initEmptyView() { |
| TextView emptyView = (TextView) getActivity().findViewById(android.R.id.empty); |
| getListView().setEmptyView(emptyView); |
| return emptyView; |
| } |
| |
| private void setOffMessage() { |
| if (mEmptyView != null) { |
| 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<AccessPoint> constructAccessPoints(Context context, |
| WifiManager wifiManager, WifiInfo lastInfo, NetworkInfo lastNetworkInfo) { |
| ArrayList<AccessPoint> accessPoints = new ArrayList<AccessPoint>(); |
| /** 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<String, AccessPoint> apMap = new Multimap<String, AccessPoint>(); |
| |
| final List<WifiConfiguration> configs = wifiManager.getConfiguredNetworks(); |
| if (configs != null) { |
| // Update "Saved Networks" menu option. |
| if (savedNetworksExist != (configs.size() > 0)) { |
| savedNetworksExist = !savedNetworksExist; |
| if (context instanceof Activity) { |
| ((Activity) context).invalidateOptionsMenu(); |
| } |
| } |
| for (WifiConfiguration config : configs) { |
| if (config.selfAdded && config.numAssociation == 0) { |
| continue; |
| } |
| AccessPoint accessPoint = new AccessPoint(context, config); |
| if (lastInfo != null && lastNetworkInfo != null) { |
| accessPoint.update(lastInfo, lastNetworkInfo); |
| } |
| accessPoints.add(accessPoint); |
| apMap.put(accessPoint.ssid, accessPoint); |
| } |
| } |
| |
| final List<ScanResult> 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); |
| if (lastInfo != null && lastNetworkInfo != null) { |
| accessPoint.update(lastInfo, lastNetworkInfo); |
| } |
| 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(); |
| updateNetworkInfo(info); |
| } else if (WifiManager.RSSI_CHANGED_ACTION.equals(action)) { |
| updateNetworkInfo(null); |
| } |
| } |
| |
| private void updateNetworkInfo(NetworkInfo networkInfo) { |
| /* sticky broadcasts can call this when wifi is disabled */ |
| if (!mWifiManager.isWifiEnabled()) { |
| mScanner.pause(); |
| return; |
| } |
| |
| if (networkInfo != null && |
| networkInfo.getDetailedState() == DetailedState.OBTAINING_IPADDR) { |
| mScanner.pause(); |
| } else { |
| mScanner.resume(); |
| } |
| |
| mLastInfo = mWifiManager.getConnectionInfo(); |
| if (networkInfo != null) { |
| mLastNetworkInfo = networkInfo; |
| } |
| |
| 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, mLastNetworkInfo); |
| } |
| } |
| } |
| |
| 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; |
| mLastNetworkInfo = 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) { |
| if (mSelectedAccessPoint.getNetworkInfo().getState() != State.DISCONNECTED) { |
| // Network is active but has no network ID - must be ephemeral. |
| mWifiManager.disableEphemeralNetwork( |
| AccessPoint.convertToQuotedString(mSelectedAccessPoint.ssid)); |
| } else { |
| // Should not happen, but a monkey seems to trigger it |
| Log.e(TAG, "Failed to forget invalid network " + mSelectedAccessPoint.getConfig()); |
| return; |
| } |
| } else { |
| 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<SearchIndexableRaw> getRawDataToIndex(Context context, boolean enabled) { |
| final List<SearchIndexableRaw> result = new ArrayList<SearchIndexableRaw>(); |
| 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<AccessPoint> 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; |
| } |
| }; |
| } |
