CETandemScrollView

This is a revamp of the Titanium TandemScroll module.

You can lock a number of ScrollViews or ScrollableViews together and proportionally scroll them. I've added a X,Y parallaxFactor, that allows you to play with the amount of scrolling.

This is an iOS only module

Quick Start

Get it

Download the latest distribution ZIP-file and consult the Titanium Documentation on how install it, or simply use the gitTio CLI:

$ gittio install co.coolelephant.tandemscroll

Usage

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

var TandemScroll = require('co.coolelephant.tandemscroll');
var scrollViews = [];
for (var i = 0; i < 3; i++) {
    var scrollView = Ti.UI.createScrollView({
        contentWidth: 1000 * (i + 1),
        contentHeight: 1000 * (i + 1)
    });
    scrollView.add(Ti.UI.createLabel({
        text: 'I am Scroll View ' + i,
        width: 160, height: 30,
        top: 200 + 70 * i, left: 200 + 40 * i
    }));
    scrollViews.push(scrollView);
    win.add(scrollView);
}
TandemScroll.lockTogether({
    views: scrollViews
});
scrollViews[scrollViews.length-1].addEventListener('scroll', function (evt) {
    Ti.API.info(evt.x + ',' + evt.y);
});
win.open();

There is a ScrollableView demo included with the module that shows how this could be used for an application introduction screen.

####Known Issues

If you use a ScrollableView, the paging control will not work

Options

views

Type: Array
Default: None (required)

Array of ScrollViews or ScrollableView to lock together (can be mixed).

parallaxFactorX

Type: Float
Default: 1 (optional)

Can be used to 'scale' the amount of scrolling in the x-direction, 1 is no scaling

parallaxFactorY

Type: Float
Default: 1 (optional)

Can be used to 'scale' the amount of scrolling in the y-direction, 1 is no scaling

Events

scroll

Fired when the view that is being touched scrolls

x

Type: Float The offset in the x direction the current view has moved

y

Type: Float The offset in the y direction the current view has moved

decelerating

Type: Boolean True if the scrolling view is decelerating

dragging

Type: Boolean True if the scrolling view is moving because of a user drag interaction

Changelog

v1.0
- initial version

##ABOUT THE AUTHOR Cool Elephant is a front to back end system integration company with a special focus on mobile application design, development and integration. Titanium Appcelerator is one of our specialities!

web: Cool Elephant
twitter: @coolelephant
email: trunk@coolelephant.co.uk

License

Copyright (c) 2010-2014 Cool Elephant Ltd

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

TheRyanHickman / CETandemScrollView