MainActivity

package com.mcv.android.myhce;


import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.content.pm.FeatureInfo;
import android.content.pm.PackageManager;
import android.os.Bundle;
import android.util.Log;
import android.widget.ImageView;


public class MainActivity extends Activity {
    private static final String TAG = MainActivity.class.getSimpleName();

    ImageView imageView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Log.i(TAG,"onCreate");

        imageView = (ImageView)findViewById(R.id.imageView1);
        imageView.setImageResource(R.drawable.connectimg);

        //Per saber si el dispositiu acctepta la tecnologia
        if (isFeatureAvailable(this, PackageManager.FEATURE_NFC_HOST_CARD_EMULATION)) {
            Log.i(TAG,"HCE funciona");
            }else{
                Log.i(TAG,"HCE no funciona");
            }
    }

    @Override
    protected void onStart() {
        Log.i(TAG, "onStart - MainActivity");
        Intent intent = new Intent(this,MyHCEService.class);
        if (isFeatureAvailable(this, PackageManager.FEATURE_NFC_HOST_CARD_EMULATION)) {
            Log.i(TAG,"HCE funciona");
            }else{
                Log.i(TAG,"HCE no funciona");
            }
        startService(intent);
        super.onStart();
    }

    public final static boolean isFeatureAvailable(Context context, String feature) {
            final PackageManager packageManager = context.getPackageManager();
            final FeatureInfo[] featuresList = packageManager.getSystemAvailableFeatures();
            for (FeatureInfo f : featuresList) {
                if (f.name != null && f.name.equals(feature)) {
                    return true;
                }
            }
        return false;
        }

    @Override
    protected void onDestroy() {
        super.onDestroy();
            Intent intentStop = new Intent(this,MyHCEService.class);
        stopService(intentStop);
        //Log.i(TAG,"Servei destruït");
    }
}