[TIMOB-11679] Android: Text field triggers "focus" event of TiUIWindow

Problem description

If window has "focus" event listener attached and it contains text fields, text fields triggers window's focus event.

Sample code

var win = Ti.UI.createWindow({
	backgroundColor: '#000',
	layout: 'vertical',
	navBarHidden: true
});

for (var i = 0; i < 10; ++i) {
	var tf = Ti.UI.createTextField({
		width: 200
	});
	win.add(tf);
}


win.addEventListener('focus', function() {
	Ti.API.info('Window focused!');
});

win.open();

Clicking on the textFields not focused, the windows 'focus' event listener is triggered.

Expected behavior:

Text fields 'focus' event listener should not be triggered in this case