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.sim;
18 
19 import com.android.settings.R;
20 import com.android.settings.Settings.SimSettingsActivity;
21 
22 import android.app.NotificationManager;
23 import android.app.PendingIntent;
24 import android.content.BroadcastReceiver;
25 import android.content.Context;
26 import android.content.Intent;
27 import android.content.SharedPreferences;
28 import android.content.SharedPreferences.Editor;
29 import android.content.res.Resources;
30 import android.provider.Settings;
31 import android.support.v4.app.NotificationCompat;
32 import android.telephony.SubscriptionInfo;
33 import android.telephony.SubscriptionManager;
34 import android.telephony.TelephonyManager;
35 import android.telephony.SubscriptionManager.OnSubscriptionsChangedListener;
36 
37 import com.android.settings.Utils;
38 
39 import java.util.List;
40 
41 public class SimBootReceiver extends BroadcastReceiver {
42     private static final String TAG = "SimBootReceiver";
43     private static final int SLOT_EMPTY = -1;
44     private static final int NOTIFICATION_ID = 1;
45     private static final String SHARED_PREFERENCES_NAME = "sim_state";
46     private static final String SLOT_PREFIX = "sim_slot_";
47     private static final int INVALID_SLOT = -2; // Used when upgrading from K to LMR1
48 
49     private SharedPreferences mSharedPreferences = null;
50     private TelephonyManager mTelephonyManager;
51     private Context mContext;
52     private SubscriptionManager mSubscriptionManager;
53 
54     @Override
onReceive(Context context, Intent intent)55     public void onReceive(Context context, Intent intent) {
56         mTelephonyManager = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
57         mContext = context;
58         mSubscriptionManager = SubscriptionManager.from(mContext);
59         mSharedPreferences = mContext.getSharedPreferences(SHARED_PREFERENCES_NAME,
60                 Context.MODE_PRIVATE);
61 
62         mSubscriptionManager.addOnSubscriptionsChangedListener(mSubscriptionListener);
63     }
64 
detectChangeAndNotify()65     private void detectChangeAndNotify() {
66         final int numSlots = mTelephonyManager.getSimCount();
67         final boolean isInProvisioning = Settings.Global.getInt(mContext.getContentResolver(),
68                 Settings.Global.DEVICE_PROVISIONED, 0) == 0;
69         boolean notificationSent = false;
70         int numSIMsDetected = 0;
71         int lastSIMSlotDetected = -1;
72 
73         // Do not create notifications on single SIM devices or when provisiong.
74         if (numSlots < 2 || isInProvisioning) {
75             return;
76         }
77 
78         // We wait until SubscriptionManager returns a valid list of Subscription informations
79         // by checking if the list is empty.
80         // This is not completely correct, but works for most cases.
81         // See Bug: 18377252
82         List<SubscriptionInfo> sil = mSubscriptionManager.getActiveSubscriptionInfoList();
83         if (sil == null || sil.size() < 1) {
84             return;
85         }
86 
87         for (int i = 0; i < numSlots; i++) {
88             final SubscriptionInfo sir = Utils.findRecordBySlotId(mContext, i);
89             final String key = SLOT_PREFIX+i;
90             final int lastSubId = getLastSubId(key);
91 
92             if (sir != null) {
93                 numSIMsDetected++;
94                 final int currentSubId = sir.getSubscriptionId();
95                 if (lastSubId == INVALID_SLOT) {
96                     setLastSubId(key, currentSubId);
97                 } else if (lastSubId != currentSubId) {
98                     createNotification(mContext);
99                     setLastSubId(key, currentSubId);
100                     notificationSent = true;
101                 }
102                 lastSIMSlotDetected = i;
103             } else if (lastSubId != SLOT_EMPTY) {
104                 createNotification(mContext);
105                 setLastSubId(key, SLOT_EMPTY);
106                 notificationSent = true;
107             }
108         }
109 
110         if (notificationSent) {
111             Intent intent = new Intent(mContext, SimDialogActivity.class);
112             intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
113             if (numSIMsDetected == 1) {
114                 intent.putExtra(SimDialogActivity.DIALOG_TYPE_KEY, SimDialogActivity.PREFERRED_PICK);
115                 intent.putExtra(SimDialogActivity.PREFERRED_SIM, lastSIMSlotDetected);
116             } else {
117                 intent.putExtra(SimDialogActivity.DIALOG_TYPE_KEY, SimDialogActivity.DATA_PICK);
118             }
119             mContext.startActivity(intent);
120         }
121     }
122 
getLastSubId(String strSlotId)123     private int getLastSubId(String strSlotId) {
124         return mSharedPreferences.getInt(strSlotId, INVALID_SLOT);
125     }
126 
setLastSubId(String strSlotId, int value)127     private void setLastSubId(String strSlotId, int value) {
128         Editor editor = mSharedPreferences.edit();
129         editor.putInt(strSlotId, value);
130         editor.commit();
131     }
132 
createNotification(Context context)133     private void createNotification(Context context){
134         final Resources resources = context.getResources();
135 
136         NotificationCompat.Builder builder =
137                 new NotificationCompat.Builder(context)
138                 .setSmallIcon(R.drawable.ic_sim_card_alert_white_48dp)
139                 .setColor(resources.getColor(R.color.sim_noitification))
140                 .setContentTitle(resources.getString(R.string.sim_notification_title))
141                 .setContentText(resources.getString(R.string.sim_notification_summary));
142         Intent resultIntent = new Intent(context, SimSettingsActivity.class);
143         resultIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
144         PendingIntent resultPendingIntent =
145                 PendingIntent.getActivity(
146                 context,
147                 0,
148                 resultIntent,
149                 PendingIntent.FLAG_CANCEL_CURRENT
150                 );
151         builder.setContentIntent(resultPendingIntent);
152         NotificationManager notificationManager =
153                     (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
154         notificationManager.notify(NOTIFICATION_ID, builder.build());
155     }
156 
cancelNotification(Context context)157     public static void cancelNotification(Context context) {
158         NotificationManager notificationManager =
159                     (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
160         notificationManager.cancel(NOTIFICATION_ID);
161     }
162 
163     private final OnSubscriptionsChangedListener mSubscriptionListener =
164             new OnSubscriptionsChangedListener() {
165         @Override
166         public void onSubscriptionsChanged() {
167             detectChangeAndNotify();
168         }
169     };
170 
171 }
172