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
onCreateView(final LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)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
onActivityCreated(Bundle savedInstanceState)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
registerForContextMenu(View view)113     public void registerForContextMenu(View view) {
114         // Suppressed during setup wizard
115     }
116 
117     @Override
createWifiEnabler()118     /* package */ WifiEnabler createWifiEnabler() {
119         // Not shown during setup wizard
120         return null;
121     }
122 
123     @Override
addOptionsMenuItems(Menu menu)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
connect(final WifiConfiguration config)139     protected void connect(final WifiConfiguration config) {
140         WifiSetupActivity activity = (WifiSetupActivity) getActivity();
141         activity.networkSelected();
142         super.connect(config);
143     }
144 
145     @Override
connect(final int networkId)146     protected void connect(final int networkId) {
147         WifiSetupActivity activity = (WifiSetupActivity) getActivity();
148         activity.networkSelected();
149         super.connect(networkId);
150     }
151 
152     @Override
initEmptyView()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 
updateFooter()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