HTTPClient example with Authorization

gistfile1.js

// this sets the background color of the master UIView (when there are no windows/tab groups on it)
Titanium.UI.setBackgroundColor('#000');

var win = Ti.UI.createWindow({
	title: "MainWindow",
	layout: "vertical"
});

var username = Ti.UI.createTextField({
	left: 10,
	right: 10,
	top: 10,
	height: 15,
	color: "#f4f4f4",
	font: {fontSize: 14, fontFamily:"Calibri", fontWeight: "normal"},
	value: "USERNAME",
	borderColor: "#f4f4f4",
	borderWidth: 1,
	value: 'myusername'
});
var password = Ti.UI.createTextField({
	left: 10,
	right: 10,
	top: 10,
	height: 15,
	color: "#f4f4f4",
	font: {fontSize: 14, fontFamily:"Calibri", fontWeight: "normal"},
	value: "PASSWORD",
	borderColor: "#f4f4f4",
	borderWidth: 1,
	value: 'mypassword'
});

var responseLabel = Ti.UI.createLabel({
	color: "#f4f4f4",
	font: {fontSize: 14, fontFamily:"Calibri", fontWeight: "normal"},
	text: "Response",
	left: 10,
	top:10,
	height: 15,
});

var response = Ti.UI.createTextArea({
	title: "ResponseTA",
	left: 10,
	right: 10,
	top: 10,
	bottom: 25,
	height: 300,
	borderColor: "#f4f4f4",
	borderWidth: 1,
	font: {fontSize: 12, fontFamily:"Calibri", fontWeight: "normal"},
	color: "#f4f4f4",
	softKeyboardOnFocus: false,
	backgroundColor: "#000"
})

var button = Ti.UI.createButton({
	title: "Request",
	backgroundColor: "#fff",
	width: 150,
	height: 25,
});

button.addEventListener("click", function(e){
	Ti.API.info("Button Clicked");
	
	var xhr = Ti.Network.createHTTPClient();
	
	xhr.onload = function(e) {
		Ti.API.info("Status --> "+ this.status	);
		
		Ti.API.info("Response:\n " + this.responseText);
		response.value = this.responseText;
	};
	
	xhr.onerror = function(e) {
		Ti.API.error("--> " + this.status + " " + e.message );
		response.value = this.status + " " + e.message; 
	};
	
	xhr.open('GET','http://go.urbanairship.com/api/app/content');
	var auth = 'Basic '+ Ti.Utils.base64encode(username.value+":"+password.value);
	Ti.API.info("Authorization: "+auth);
	xhr.setRequestHeader('Authorization', auth);
	xhr.send();
});



win.add(url);
win.add(username);
win.add(password);
win.add(responseLabel);
win.add(response);
win.add(button);
win.open();