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.nfc;
18 
19 import android.app.backup.BackupAgentHelper;
20 import android.app.backup.SharedPreferencesBackupHelper;
21 import android.content.SharedPreferences;
22 import android.nfc.NfcAdapter;
23 import android.content.Context;
24 
25 public class NfcBackupAgent extends BackupAgentHelper {
26     // Backup identifier
27     static final String SHARED_PREFS_BACKUP_KEY = "shared_prefs";
28 
29     @Override
onCreate()30     public void onCreate() {
31         SharedPreferencesBackupHelper helper =
32                 new SharedPreferencesBackupHelper(this, NfcService.PREF);
33         addHelper(SHARED_PREFS_BACKUP_KEY, helper);
34     }
35 
36     @Override
onRestoreFinished()37     public void onRestoreFinished() {
38         NfcAdapter nfcAdapter = NfcAdapter.getDefaultAdapter(this);
39 
40         if (nfcAdapter != null) {
41             SharedPreferences prefs = getSharedPreferences(NfcService.PREF,
42                 Context.MODE_MULTI_PROCESS);
43             if (prefs.getBoolean(NfcService.PREF_NDEF_PUSH_ON,
44                     NfcService.NDEF_PUSH_ON_DEFAULT)) {
45                 nfcAdapter.enableNdefPush();
46             } else {
47                 nfcAdapter.disableNdefPush();
48             }
49 
50             if (prefs.getBoolean(NfcService.PREF_NFC_ON,
51                     NfcService.NFC_ON_DEFAULT)) {
52                 nfcAdapter.enable();
53             } else {
54                 nfcAdapter.disable();
55             }
56         }
57     }
58 }
59 
60