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      1 /*
      2  * Copyright (C) 2014 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.content.Intent;
     20 import android.content.res.TypedArray;
     21 import android.database.DataSetObserver;
     22 import android.net.wifi.WifiConfiguration;
     23 import android.os.Bundle;
     24 import android.view.Gravity;
     25 import android.view.LayoutInflater;
     26 import android.view.Menu;
     27 import android.view.MenuItem;
     28 import android.view.View;
     29 import android.view.View.OnClickListener;
     30 import android.view.ViewGroup;
     31 import android.widget.AbsListView.LayoutParams;
     32 import android.widget.ListAdapter;
     33 import android.widget.ListView;
     34 import android.widget.TextView;
     35 
     36 import com.android.settings.R;
     37 
     38 /**
     39  * This customized version of WifiSettings is shown to the user only during Setup Wizard. Menu
     40  * selections are limited, clicking on an access point will auto-advance to the next screen (once
     41  * connected), and, if the user opts to skip ahead without a wifi connection, a warning message
     42  * alerts of possible carrier data charges or missing software updates.
     43  */
     44 public class WifiSettingsForSetupWizard extends WifiSettings {
     45 
     46     private static final String TAG = "WifiSettingsForSetupWizard";
     47 
     48     // show a text regarding data charges when wifi connection is required during setup wizard
     49     protected static final String EXTRA_SHOW_WIFI_REQUIRED_INFO = "wifi_show_wifi_required_info";
     50 
     51     private View mAddOtherNetworkItem;
     52     private ListAdapter mAdapter;
     53     private TextView mEmptyFooter;
     54     private boolean mListLastEmpty = false;
     55 
     56     @Override
     57     public View onCreateView(final LayoutInflater inflater, ViewGroup container,
     58             Bundle savedInstanceState) {
     59 
     60         final View view = inflater.inflate(R.layout.setup_preference, container, false);
     61 
     62         final ListView list = (ListView) view.findViewById(android.R.id.list);
     63         final View title = view.findViewById(R.id.title);
     64         if (title == null) {
     65             final View header = inflater.inflate(R.layout.setup_wizard_header, list, false);
     66             list.addHeaderView(header, null, false);
     67         }
     68 
     69         mAddOtherNetworkItem = inflater.inflate(R.layout.setup_wifi_add_network, list, false);
     70         list.addFooterView(mAddOtherNetworkItem, null, true);
     71         mAddOtherNetworkItem.setOnClickListener(new OnClickListener() {
     72             @Override
     73             public void onClick(View v) {
     74                 if (mWifiManager.isWifiEnabled()) {
     75                     onAddNetworkPressed();
     76                 }
     77             }
     78         });
     79 
     80         final Intent intent = getActivity().getIntent();
     81         if (intent.getBooleanExtra(EXTRA_SHOW_WIFI_REQUIRED_INFO, false)) {
     82             view.findViewById(R.id.wifi_required_info).setVisibility(View.VISIBLE);
     83         }
     84 
     85         return view;
     86     }
     87 
     88     @Override
     89     public void onActivityCreated(Bundle savedInstanceState) {
     90         super.onActivityCreated(savedInstanceState);
     91 
     92         getView().setSystemUiVisibility(
     93                 View.STATUS_BAR_DISABLE_HOME |
     94                 View.STATUS_BAR_DISABLE_RECENT |
     95                 View.STATUS_BAR_DISABLE_NOTIFICATION_ALERTS |
     96                 View.STATUS_BAR_DISABLE_CLOCK);
     97 
     98         if (hasNextButton()) {
     99             getNextButton().setVisibility(View.GONE);
    100         }
    101 
    102         mAdapter = getPreferenceScreen().getRootAdapter();
    103         mAdapter.registerDataSetObserver(new DataSetObserver() {
    104             @Override
    105             public void onChanged() {
    106                 super.onChanged();
    107                 updateFooter();
    108             }
    109         });
    110     }
    111 
    112     @Override
    113     public void registerForContextMenu(View view) {
    114         // Suppressed during setup wizard
    115     }
    116 
    117     @Override
    118     /* package */ WifiEnabler createWifiEnabler() {
    119         // Not shown during setup wizard
    120         return null;
    121     }
    122 
    123     @Override
    124     /* package */ void addOptionsMenuItems(Menu menu) {
    125         final boolean wifiIsEnabled = mWifiManager.isWifiEnabled();
    126         final TypedArray ta = getActivity().getTheme()
    127                 .obtainStyledAttributes(new int[] {R.attr.ic_wps});
    128         menu.add(Menu.NONE, MENU_ID_WPS_PBC, 0, R.string.wifi_menu_wps_pbc)
    129                 .setIcon(ta.getDrawable(0))
    130                 .setEnabled(wifiIsEnabled)
    131                 .setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS);
    132         menu.add(Menu.NONE, MENU_ID_ADD_NETWORK, 0, R.string.wifi_add_network)
    133                 .setEnabled(wifiIsEnabled)
    134                 .setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS);
    135         ta.recycle();
    136     }
    137 
    138     @Override
    139     protected void connect(final WifiConfiguration config) {
    140         WifiSetupActivity activity = (WifiSetupActivity) getActivity();
    141         activity.networkSelected();
    142         super.connect(config);
    143     }
    144 
    145     @Override
    146     protected void connect(final int networkId) {
    147         WifiSetupActivity activity = (WifiSetupActivity) getActivity();
    148         activity.networkSelected();
    149         super.connect(networkId);
    150     }
    151 
    152     @Override
    153     protected TextView initEmptyView() {
    154         mEmptyFooter = new TextView(getActivity());
    155         mEmptyFooter.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT,
    156                 LayoutParams.MATCH_PARENT));
    157         mEmptyFooter.setGravity(Gravity.CENTER);
    158         mEmptyFooter.setCompoundDrawablesWithIntrinsicBounds(0,
    159                 R.drawable.ic_wifi_emptystate, 0,0);
    160         return mEmptyFooter;
    161     }
    162 
    163     protected void updateFooter() {
    164         final boolean isEmpty = mAdapter.isEmpty();
    165         if (isEmpty != mListLastEmpty) {
    166             final ListView list = getListView();
    167             if (isEmpty) {
    168                 list.removeFooterView(mAddOtherNetworkItem);
    169                 list.addFooterView(mEmptyFooter, null, false);
    170             } else {
    171                 list.removeFooterView(mEmptyFooter);
    172                 list.addFooterView(mAddOtherNetworkItem, null, true);
    173             }
    174             mListLastEmpty = isEmpty;
    175         }
    176     }
    177 }
    178