app.js

var Parse = require('/Parse')

var isInForeground = true;

Ti.App.addEventListener('pause', function(){
    isInForeground = false;
});

Ti.App.addEventListener('resumed', function(){
    isInForeground = true;
});

Ti.Network.registerForPushNotifications({
    types: [
        Ti.Network.NOTIFICATION_TYPE_BADGE,
        Ti.Network.NOTIFICATION_TYPE_ALERT,
        Ti.Network.NOTIFICATION_TYPE_SOUND
    ], success:function(e) {
        Parse.register({
                deviceType: 'ios',
                deviceToken: e.deviceToken,
                channels: [''] // array of channels, make sure to add the default broadcast channel
        });
    }, error:function(e) {
        Ti.API.log(e.error);
    }, callback:function(e) {
        Ti.API.log(JSON.stringify(e.data));
        if (isInForeground && e.data && e.data.alert) {
            var alertDialog = Ti.UI.createAlertDialog({
                title: L('Alert', 'Alert'),
                message: e.data.alert
            });
            alertDialog.show();
        }
    }
});

Parse.js

var baseUrl = 'https://api.parse.com/1',
    appId = 'XXXXXXXXXXXXXXX',
    apiKey = 'XXXXXXXXXXXXXX'; // make sure to use the REST API Key

var _register = function(params, lambda, lambdaerror) {
    var method = 'POST',
        url = baseUrl + '/installations',
        payload = (params) ? JSON.stringify(params) : '';
            
    _helper(url, method, payload, function(data, status) {
        Ti.API.log('completed registration: ' + JSON.stringify(status));
        lambda(data, status);
    }, function(xhr, error) {
        Ti.API.log('error registration: ' + JSON.stringify(error));
        lambdaerror(error);
    });
};

var _helper = function(url, method, params, lambda, lambdaerror) {
    var xhr = Ti.Network.createHTTPClient();
    
    xhr.setTimeout(15000);

    xhr.onerror = function(e) {
        lambdaerror(this, e);
    };

    xhr.onload = function() {
        lambda(this.responseText, this.status);
    };
    
    params = params.replace(/\./g, '_');

    xhr.open(method, url);
    xhr.setRequestHeader('X-Parse-Application-Id', appId);
    xhr.setRequestHeader('X-Parse-REST-API-Key', apiKey);
    xhr.setRequestHeader('Content-Type', 'application/json');
    xhr.send(params);
};

exports.register = _register;