Revert "Revert "svc(nfc): Use NfcAdapter API to enable/disable""

This reverts commit 8140652e.

Reason for revert: Added a fix for the failing code.

Change-Id: I729672340d52a745dd43121e1dbedf9d6d5ec34a

cmds/svc/src/com/android/commands/svc/NfcCommand.java

@@ -16,10 +16,11 @@
 
 package com.android.commands.svc;
 
+import android.app.ActivityThread;
 import android.content.Context;
-import android.nfc.INfcAdapter;
-import android.os.RemoteException;
-import android.os.ServiceManager;
+import android.nfc.NfcAdapter;
+import android.nfc.NfcManager;
+import android.os.Looper;
 
 public class NfcCommand extends Svc.Command {
 
@@ -42,27 +43,26 @@ public class NfcCommand extends Svc.Command {
 
     @Override
     public void run(String[] args) {
-        INfcAdapter adapter = INfcAdapter.Stub.asInterface(
-                ServiceManager.getService(Context.NFC_SERVICE));
-
+        Looper.prepareMainLooper();
+        ActivityThread.initializeMainlineModules();
+        Context context = ActivityThread.systemMain().getSystemContext();
+        NfcManager nfcManager = context.getSystemService(NfcManager.class);
+        if (nfcManager == null) {
+            System.err.println("Got a null NfcManager, is the system running?");
+            return;
+        }
+        NfcAdapter adapter = nfcManager.getDefaultAdapter();
         if (adapter == null) {
             System.err.println("Got a null NfcAdapter, is the system running?");
             return;
         }
-
-        try {
-            if (args.length == 2 && "enable".equals(args[1])) {
-                adapter.enable();
-                return;
-            } else if (args.length == 2 && "disable".equals(args[1])) {
-                adapter.disable(true);
-                return;
-            }
-        } catch (RemoteException e) {
-            System.err.println("NFC operation failed: " + e);
+        if (args.length == 2 && "enable".equals(args[1])) {
+            adapter.enable();
+            return;
+        } else if (args.length == 2 && "disable".equals(args[1])) {
+            adapter.disable(true);
             return;
         }
-
         System.err.println(longHelp());
     }