1 /* 2 * Copyright (C) 2015 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.commands.svc; 18 19 import android.content.Context; 20 import android.nfc.INfcAdapter; 21 import android.os.RemoteException; 22 import android.os.ServiceManager; 23 24 public class NfcCommand extends Svc.Command { 25 26 public NfcCommand() { 27 super("nfc"); 28 } 29 30 @Override 31 public String shortHelp() { 32 return "Control NFC functions"; 33 } 34 35 @Override 36 public String longHelp() { 37 return shortHelp() + "\n" 38 + "\n" 39 + "usage: svc nfc [enable|disable]\n" 40 + " Turn NFC on or off.\n\n"; 41 } 42 43 @Override 44 public void run(String[] args) { 45 INfcAdapter adapter = INfcAdapter.Stub.asInterface( 46 ServiceManager.getService(Context.NFC_SERVICE)); 47 48 if (adapter == null) { 49 System.err.println("Got a null NfcAdapter, is the system running?"); 50 return; 51 } 52 53 try { 54 if (args.length == 2 && "enable".equals(args[1])) { 55 adapter.enable(); 56 return; 57 } else if (args.length == 2 && "disable".equals(args[1])) { 58 adapter.disable(true); 59 return; 60 } 61 } catch (RemoteException e) { 62 System.err.println("NFC operation failed: " + e); 63 return; 64 } 65 66 System.err.println(longHelp()); 67 } 68 69 } 70
