[TIMOB-13841] Android: Black screen is displayed shortly when launching new activity

*Problem* Sometimes, when a new activity is launched, a black screen is displayed shortly before the content of the new activity is displayed. This flickering is disturbing to the user experience. *Steps to reproduce* 1. Launch the app with the code below. 2. Scroll to the end of the table. 3. Scroll a little further so that the blue fading edge at the bottom appears and then within about max. 1 second tap on a list item. 4. The screen will go black quickly before the content of the new activity (blue background color) appears 5. If one waits a bit after scrolling and before tapping the item, this behavior does not appear This is just one possibility of triggering this problem. The problem occurs with other user interactions as well, but I assume the reason for the problem is probably the same. *Test case*

var win = Ti.UI.createWindow({
	backgroundColor : 'red'
});

var items = [];
for (var i = 0; i < 40; i++) {
	items.push({
		properties : {
			title : 'Item' + i,
			image : 'https://raw.github.com/appcelerator/titanium_mobile/master/android/templates/app/default/Resources/android/appicon.png'
		}
	});
}

var section = Ti.UI.createListSection({
	items : items
});

var listView = Ti.UI.createListView({
	sections : [section]
});

listView.addEventListener('itemclick', function(evt) {
	var win2 = Ti.UI.createWindow({
		backgroundColor : 'blue',
		modal : 'false'
	});

	win2.open({
		animated : false // disable animations between activities so the effect is better visible
	});
});

win.add(listView);
win.open();