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      1 /*
      2  * Copyright (C) 2011 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.basicsmsreceiver;
     18 
     19 import android.app.Activity;
     20 import android.app.Application;
     21 import android.content.SharedPreferences;
     22 import android.util.Log;
     23 
     24 public class BasicSmsReceiverApp extends Application {
     25     public static final String LOG_TAG = "BasicSmsReceiverApp";
     26     public static final String SMS_LITE_PREFS_KEY = "sms_lite_prefs";
     27     public static final String PREF_KEY_NOTIFICATION_ID = "notification_id";
     28 
     29     static BasicSmsReceiverApp gBasicSmsReceiverApp;
     30 
     31     @Override
     32     public void onCreate() {
     33         super.onCreate();
     34 
     35         gBasicSmsReceiverApp = this;
     36     }
     37 
     38     public static BasicSmsReceiverApp getBasicSmsReceiverApp() {
     39         return gBasicSmsReceiverApp;
     40     }
     41 
     42     // Each incoming sms gets its own notification. We have to use a new unique notification id
     43     // for each one.
     44     public int getNextNotificationId() {
     45         SharedPreferences prefs = getSharedPreferences(SMS_LITE_PREFS_KEY,
     46                 Activity.MODE_PRIVATE);
     47         int notificationId = prefs.getInt(PREF_KEY_NOTIFICATION_ID, 0);
     48         ++notificationId;
     49         if (notificationId > 32765) {
     50             notificationId = 1;     // wrap around before it gets dangerous
     51         }
     52 
     53         // Save the updated notificationId in SharedPreferences
     54         SharedPreferences.Editor editor = prefs.edit();
     55         editor.putInt(PREF_KEY_NOTIFICATION_ID, notificationId);
     56         editor.apply();
     57 
     58         Log.d(LOG_TAG, "getNextNotificationId: " + notificationId);
     59 
     60         return notificationId;
     61     }
     62 }
     63