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      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 
     37     public NfcApplication() {
     38 
     39     }
     40 
     41     @Override
     42     public void onCreate() {
     43         super.onCreate();
     44         PackageManager pm = getApplicationContext().getPackageManager();
     45         if (!pm.hasSystemFeature(PackageManager.FEATURE_NFC_ANY)) {
     46             pm.setApplicationEnabledSetting(getApplicationContext().getPackageName(),
     47                 PackageManager.COMPONENT_ENABLED_STATE_DISABLED, 0);
     48                 return;
     49         }
     50 
     51         boolean isMainProcess = false;
     52         // We start a service in a separate process to do
     53         // handover transfer. We don't want to instantiate an NfcService
     54         // object in those cases, hence check the name of the process
     55         // to determine whether we're the main NFC service, or the
     56         // handover process
     57         ActivityManager am = (ActivityManager)this.getSystemService(ACTIVITY_SERVICE);
     58         List processes = am.getRunningAppProcesses();
     59         Iterator i = processes.iterator();
     60         while (i.hasNext()) {
     61             RunningAppProcessInfo appInfo = (RunningAppProcessInfo)(i.next());
     62             if (appInfo.pid == Process.myPid()) {
     63                 isMainProcess =  (NFC_PROCESS.equals(appInfo.processName));
     64                 break;
     65             }
     66         }
     67         if (UserHandle.myUserId() == 0 && isMainProcess) {
     68             mNfcService = new NfcService(this);
     69             ThreadedRenderer.enableForegroundTrimming();
     70         }
     71     }
     72 }
     73