Small sample that demonstrates a drag down view, for Titanium, works with iOS and Android.

scrollDownView.js

var screenHeight = Ti.Platform.displayCaps.platformHeight;
var screenWidth = Ti.Platform.displayCaps.platformWidth;

var win = Ti.UI.createWindow({
	fullscreen: true,
	height: screenHeight,
	width: screenWidth,
	backgroundColor: 'white'
});

var movePos = 0;
var currentY;
var yPos = 0 - (screenHeight / 2);

//This is the view that will be dragged down
var view =Ti.UI.createView({
	backgroundColor: 'red',
	height: screenHeight / 2,
	width: screenWidth,
	top: yPos
});
//Calculate whether the view should scroll up
view.addEventListener('touchstart', function (e){
	currentY = e.y;
});

view.addEventListener('touchmove', function(e){
	if(e.y < (currentY)){
	view.animate({top: yPos, duration: 1000});
}
});
//Calculate whether the view should scroll down
win.add(view);
win.addEventListener('touchstart', function (e){
	currentY = e.y;
});

win.addEventListener('touchmove', function(e){
	if(e.y > (currentY + 10)){
	view.animate({top: 0, duration: 1000});
}
});

win.add(view);

win.open();