public class MainActivity extends AppCompatActivity {
private static final int PLAY_SERVICES_RESOLUTION_REQUEST = 9000;
public static final String EXTRA_MESSAGE = "message";
public static final String PROPERTY_REG_ID = "registration_id";
private static final String PROPERTY_APP_VERSION = "appVersion";

GoogleCloudMessaging gcm;
AtomicInteger msgId = new AtomicInteger();
String regid;

ImageButton btnVoyMap;

private static final String TAG = "MainActivity";

private BroadcastReceiver mRegistrationBroadcastReceiver;

private TextView mInformationTextView;

// Progress Dialog
private ProgressDialog pDialog;

// Creating JSON Parser object
JSONParser jParser = new JSONParser();

ArrayList<HashMap<String, String>> emergenciaList;

// url to get all products list
private static String url_all_emergencias = "http://bomberosemergencias.pe.hu/get_all_emergencias.php";

// JSON Node names
private static final String TAG_SUCCESS = "success";
private static final String TAG_PRODUCTS = "emergencia";

private static final String TAG_HORA = "hora";
private static final String TAG_UBICACION = "ubicacion";
private static final String TAG_TIPO = "tipo";
private static final String TAG_ESTADO = "estado";
private static final String TAG_MAQUINAS = "maquinas";


JSONArray products = null;

ListView lista;


@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    btnVoyMap = (ImageButton) findViewById(R.id.btnmap);

    // Hashmap para el ListView
    emergenciaList = new ArrayList<>();

    // Cargar los productos en el Background Thread
    new LoadAllProducts().execute();
    lista = (ListView) findViewById(R.id.listAllProducts);

    ActionBar actionBar = getSupportActionBar();
    assert actionBar != null;
    actionBar.setDisplayHomeAsUpEnabled(true);


            // Check device for Play Services APK.
            if (checkPlayServices()) {
                gcm = GoogleCloudMessaging.getInstance(getApplicationContext());
                regid = getRegistrationId(getApplicationContext());

                if (regid.isEmpty()) {

                    new RegisterApp(getApplicationContext(), gcm, getAppVersion(getApplicationContext())).execute();
                }

            } else {
                Log.i(TAG, "No valid Google Play Services APK found.");
            }


}//fin onCreate

class LoadAllProducts extends AsyncTask<String, String, String> {

    /**
     * Antes de empezar el background thread Show Progress Dialog
     * */
    @Override
    protected void onPreExecute() {
        super.onPreExecute();
        pDialog = new ProgressDialog(MainActivity.this);
        pDialog.setMessage("Cargando...Por favor espere...");
        pDialog.setIcon(R.drawable.ic_launcher);
        pDialog.setIndeterminate(false);
        pDialog.setCancelable(false);
        pDialog.show();
    }

    /**
     * obteniendo todos los productos
     * */
    protected String doInBackground(String... args) {
        // Building Parameters
        List params = new ArrayList();
        // getting JSON string from URL
        JSONObject json = jParser.makeHttpRequest(url_all_emergencias, "GET", params);

        // Check your log cat for JSON reponse
        Log.d("All Products: ", json.toString());

        try {
            // Checking for SUCCESS TAG
            int success = json.getInt(TAG_SUCCESS);

            if (success == 1) {
                // products found
                // Getting Array of Products
                products = json.getJSONArray(TAG_PRODUCTS);

                // looping through All Products
                //Log.i("ramiro", "produtos.length" + products.length());
                for (int i = 0; i < products.length(); i++) {
                    JSONObject c = products.getJSONObject(i);

                    // Storing each json item in variable

                    String hora = c.getString(TAG_HORA);
                    String ubicacion = c.getString(TAG_UBICACION);
                    String tipo = c.getString(TAG_TIPO);
                    String estado = c.getString(TAG_ESTADO);
                    String maquinas = c.getString(TAG_MAQUINAS);


                    // creating new HashMap
                    HashMap<String, String> map = new HashMap<>();

                    // adding each child node to HashMap key => value

                    map.put(TAG_HORA, hora);
                    map.put(TAG_UBICACION, ubicacion);
                    map.put(TAG_TIPO, tipo);
                    map.put(TAG_ESTADO, estado);
                    map.put(TAG_MAQUINAS, maquinas);

                    emergenciaList.add(map);
                }

            }

        } catch (JSONException e) {
            e.printStackTrace();


        }
        return null;
    }

    /**
     * After completing background task Dismiss the progress dialog
     * **/
    protected void onPostExecute(String file_url) {
        // dismiss the dialog after getting all products
        pDialog.dismiss();
        // updating UI from Background Thread
        runOnUiThread(new Runnable() {
            public void run() {
                /**
                 * Updating parsed JSON data into ListView
                 * */
                ListAdapter adapter = new SimpleAdapter(
                        MainActivity.this,
                        emergenciaList,
                        R.layout.single_post,


                        new String[] {

                                TAG_HORA,
                                TAG_UBICACION,
                                TAG_TIPO,
                                TAG_ESTADO,
                                TAG_MAQUINAS,
                        },
                        new int[] {

                                R.id.single_post_tv_hora,
                                R.id.single_post_tv_ubicacion,
                                R.id.single_post_tv_tipo,
                                R.id.single_post_tv_estado,
                                R.id.single_post_tv_maquinas,

                        });
                // updating listview
                //setListAdapter(adapter);
                lista.setAdapter(adapter);
                Toast.makeText(getBaseContext(), "EMERGENCIAS ACTUALIZADAS",
                        Toast.LENGTH_SHORT).show();

            }
        });


    }
}






private void refresh() {
    finish();
    Intent myIntent = new Intent(this, MainActivity.class);
    startActivity(myIntent);

       }

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.menu_main, menu);
    return true;
}


private boolean checkPlayServices() {
    int resultCode = GooglePlayServicesUtil.isGooglePlayServicesAvailable(this);
    if (resultCode != ConnectionResult.SUCCESS) {
        if (GooglePlayServicesUtil.isUserRecoverableError(resultCode)) {
            GooglePlayServicesUtil.getErrorDialog(resultCode, this,
                    PLAY_SERVICES_RESOLUTION_REQUEST).show();
        } else {
            Log.i(TAG, "This device is not supported.");
            finish();
        }
        return false;
    }
    return true;
}

/**
 * Gets the current registration ID for application on GCM service.
 * <p>
 * If result is empty, the app needs to register.
 *
 * @return registration ID, or empty string if there is no existing
 *         registration ID.
 */
private String getRegistrationId(Context context) {
    final SharedPreferences prefs = getGCMPreferences(context);
    String registrationId = prefs.getString(PROPERTY_REG_ID, "");
    if (registrationId.isEmpty()) {
        Log.i(TAG, "Registration not found.");
        return "";
    }
    // Check if app was updated; if so, it must clear the registration ID
    // since the existing regID is not guaranteed to work with the new
    // app version.
    int registeredVersion = prefs.getInt(PROPERTY_APP_VERSION, Integer.MIN_VALUE);
    int currentVersion = getAppVersion(getApplicationContext());
    if (registeredVersion != currentVersion) {
        Log.i(TAG, "App version changed.");
        return "";
    }
    return registrationId;
}

/**
 * @return Application's {@code SharedPreferences}.
 */
private SharedPreferences getGCMPreferences(Context context) {
    // This sample app persists the registration ID in shared preferences, but
    // how you store the regID in your app is up to you.
    return getSharedPreferences(MainActivity.class.getSimpleName(),
            Context.MODE_PRIVATE);
}

/**
 * @return Application's version code from the {@code PackageManager}.
 */
private static int getAppVersion(Context context) {
    try {
        PackageInfo packageInfo = context.getPackageManager()
                .getPackageInfo(context.getPackageName(), 0);
        return packageInfo.versionCode;
    } catch (PackageManager.NameNotFoundException e) {
        // should never happen
        throw new RuntimeException("Could not get package name: " + e);
    }
}

public void onClickMapa (View view){

    Intent i = new Intent(this, MapsActivity.class);
    startActivity(i);

}

@Override
public boolean onOptionsItemSelected(MenuItem item){
    switch (item.getItemId()){
        case R.id.AcercaDe:
            Toast.makeText(this, "DESARROLLADO POR ARQMAS-JMQC-2016",
                    Toast.LENGTH_LONG).show();
            break;


        case R.id.actualizar:
            refresh();

        case R.id.Salir:
            finish();

    }
    return false;
}
}

public class CustomInfoWindowAdapter implements GoogleMap.InfoWindowAdapter {

String tipo, hora, ubicacion, estado;

private static final String TAG = "CustomInfoWindowAdapter";
private LayoutInflater inflater;



public CustomInfoWindowAdapter(LayoutInflater inflater){
    this.inflater = inflater;
}

public View getInfoWindow(Marker arg0) {
    return null;

}



@Override
public View getInfoContents(final Marker m) {

    //Carga layout personalizado.
    View v = inflater.inflate(R.layout.infowindow_layout, null);

    String[] info = m.getTitle().split("&");
    String url = m.getSnippet();


    ((TextView)v.findViewById(R.id.tipo)).setText("Accidente vehicular");
    ((TextView)v.findViewById(R.id.hora)).setText("2017-10-14 04:16:38");
    ((TextView)v.findViewById(R.id.ubicacion)).setText("Arevalo");
    ((TextView)v.findViewById(R.id.estado)).setText("atendiendo");
    return v;
}




}