1 /*
2  * Copyright (C) 2012 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.ActivityManager;
20 import android.app.ActivityManager.RunningAppProcessInfo;
21 import android.app.Application;
22 import android.os.Process;
23 import android.os.UserHandle;
24 import android.view.ThreadedRenderer;
25 import android.content.pm.PackageManager;
26 
27 import java.util.Iterator;
28 import java.util.List;
29 
30 public class NfcApplication extends Application {
31 
32     static final String TAG = "NfcApplication";
33     static final String NFC_PROCESS = "com.android.nfc";
34 
35     NfcService mNfcService;
36 
NfcApplication()37     public NfcApplication() {
38 
39     }
40 
41     @Override
onCreate()42     public void onCreate() {
43         super.onCreate();
44         PackageManager pm = getApplicationContext().getPackageManager();
45         if (!pm.hasSystemFeature(PackageManager.FEATURE_NFC_ANY)) {
46                 return;
47         }
48 
49         boolean isMainProcess = false;
50         // We start a service in a separate process to do
51         // handover transfer. We don't want to instantiate an NfcService
52         // object in those cases, hence check the name of the process
53         // to determine whether we're the main NFC service, or the
54         // handover process
55         ActivityManager am = (ActivityManager)this.getSystemService(ACTIVITY_SERVICE);
56         List processes = am.getRunningAppProcesses();
57         Iterator i = processes.iterator();
58         while (i.hasNext()) {
59             RunningAppProcessInfo appInfo = (RunningAppProcessInfo)(i.next());
60             if (appInfo.pid == Process.myPid()) {
61                 isMainProcess =  (NFC_PROCESS.equals(appInfo.processName));
62                 break;
63             }
64         }
65         if (UserHandle.myUserId() == 0 && isMainProcess) {
66             mNfcService = new NfcService(this);
67             ThreadedRenderer.enableForegroundTrimming();
68         }
69     }
70 }
71