You aren't using the navigationWindow properly. You shouldn't be calling open() on a window when you use one.
You are looking for:
`winNav.openWindow(yourWindow)
Also when you are creating a new window, pass a pointer to your navigationWindow in the constructor, then you can close the window properly. Don't create a window like that use CommonJS's require() to return your window:
paymenttransaction.js:
function paymentTransactionWindow(navGroup, otherArgs) {
var mainWinClose = Ti.UI.createButton({
style : Ti.UI.iPhone.SystemButtonStyle.DONE,
title : 'close'
});
var win = Ti.UI.createWindow({
url : url,
backgroundColor : 'white',
modal : true,
title : title,
rightNavButton: mainWinClose
});
if (Titanium.Platform.osname !== "android") {
mainWinClose.addEventListener('click', function() {
navGroup.closeWindow(win);
});
return win;
}
module.exports = paymentTransactionWindow;
Then in your previousWindow:
PaymentTransactionWindow = require('/paymentTransactionWindow); //the filename minus .js
var paymentTransactionWindow = new PaymentTransactionWindow(winNav, null);
mainNav.openWindow(paymentTransactionWindow);
watch some of the videos on commonJS: http://www.appcelerator.com/blog/2011/08/forging-titanium-episode-1-commonjs-modules/