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1 /*
2  * Copyright (C) 2017 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 package com.android.car.settings.wifi;
17 
18 import android.net.wifi.WifiManager;
19 import android.os.Bundle;
20 import android.provider.Settings;
21 
22 import androidx.annotation.NonNull;
23 import androidx.annotation.Nullable;
24 import androidx.annotation.XmlRes;
25 
26 import com.android.car.settings.R;
27 import com.android.car.settings.common.SettingsFragment;
28 import com.android.car.settings.search.CarBaseSearchIndexProvider;
29 import com.android.car.ui.toolbar.ProgressBarController;
30 import com.android.car.ui.toolbar.ToolbarController;
31 import com.android.settingslib.search.SearchIndexable;
32 import com.android.wifitrackerlib.WifiEntry;
33 
34 /**
35  * Main page to host Wifi related preferences.
36  */
37 @SearchIndexable
38 public class WifiSettingsFragment extends SettingsFragment
39         implements CarWifiManager.Listener {
40 
41     private static final int SEARCHING_DELAY_MILLIS = 1700;
42     private static final String EXTRA_CONNECTED_WIFI_ENTRY_KEY = "connected_wifi_entry_key";
43 
44     private CarWifiManager mCarWifiManager;
45     private ProgressBarController mProgressBar;
46     @Nullable
47     private String mConnectedWifiEntryKey;
48 
49     @Override
50     @XmlRes
getPreferenceScreenResId()51     protected int getPreferenceScreenResId() {
52         return R.xml.wifi_list_fragment;
53     }
54 
55     @Override
onCreate(Bundle savedInstanceState)56     public void onCreate(Bundle savedInstanceState) {
57         super.onCreate(savedInstanceState);
58         mCarWifiManager = new CarWifiManager(getContext(), getLifecycle());
59 
60         if (savedInstanceState != null) {
61             mConnectedWifiEntryKey = savedInstanceState.getString(
62                     EXTRA_CONNECTED_WIFI_ENTRY_KEY);
63         }
64     }
65 
66     @Override
onSaveInstanceState(@onNull Bundle outState)67     public void onSaveInstanceState(@NonNull Bundle outState) {
68         super.onSaveInstanceState(outState);
69         outState.putString(EXTRA_CONNECTED_WIFI_ENTRY_KEY, mConnectedWifiEntryKey);
70     }
71 
72     @Override
setupToolbar(@onNull ToolbarController toolbar)73     protected void setupToolbar(@NonNull ToolbarController toolbar) {
74         super.setupToolbar(toolbar);
75 
76         mProgressBar = toolbar.getProgressBar();
77     }
78 
79     @Override
onStart()80     public void onStart() {
81         super.onStart();
82         mCarWifiManager.addListener(this);
83         onWifiStateChanged(mCarWifiManager.getWifiState());
84     }
85 
86     @Override
onStop()87     public void onStop() {
88         super.onStop();
89         mCarWifiManager.removeListener(this);
90         mProgressBar.setVisible(false);
91     }
92 
93     @Override
onDestroy()94     public void onDestroy() {
95         super.onDestroy();
96     }
97 
98     @Override
onWifiEntriesChanged()99     public void onWifiEntriesChanged() {
100         mProgressBar.setVisible(true);
101         getView().postDelayed(() -> mProgressBar.setVisible(false), SEARCHING_DELAY_MILLIS);
102         WifiEntry connectedWifiEntry = mCarWifiManager.getConnectedWifiEntry();
103         if (connectedWifiEntry != null) {
104             String connectedWifiEntryKey = connectedWifiEntry.getKey();
105             if (!connectedWifiEntryKey.equals(mConnectedWifiEntryKey)) {
106                 scrollToPreference(connectedWifiEntryKey);
107                 mConnectedWifiEntryKey = connectedWifiEntryKey;
108             }
109         } else {
110             mConnectedWifiEntryKey = null;
111         }
112     }
113 
114     @Override
onWifiStateChanged(int state)115     public void onWifiStateChanged(int state) {
116         mProgressBar.setVisible(state == WifiManager.WIFI_STATE_ENABLING);
117     }
118 
119     /**
120      * Data provider for Settings Search.
121      */
122     public static final CarBaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
123             new CarBaseSearchIndexProvider(R.xml.wifi_list_fragment, Settings.ACTION_WIFI_SETTINGS);
124 }
125