real world app development using new telerik screenbuilder and new progress data source – the...

Real World App Development using NEW Telerik

ScreenBuilder and NEW Progress Data Source

– the basicsBrian C. Preece

Ypsilon Software Ltd

[email protected]

Purpose of this session To show how to use Telerik Platform to develop a real-world hybrid

app

To interface that app with OpenEdge business logic

Target audience: experienced OpenEdge developers

Who are Ypsilon Software Ltd? Independent software development consultants

Consultancy

Bespoke Development

UI Design

Vendor selection

Training

Main speciality: Progress Software tools and related subjects

Principal consultant: Brian Preece

Developer since punched cards and paper tape!

Frequent speaker at Progress conferences on latest topics

Former Chairman of PUG UK and Ireland

Current focus: Mobile App Development using Telerik Platform

Agenda Customer self scanning in retail stores

Demo

Using Telerik Platform for mobile apps for business

Code view

Developing business entities

Developing the UI

Wiring it up

Conclusions and questions

Self scanning Customers scan their shopping as they go, using a dedicated device

or mobile app

They pack their shopping bags as they go round the store

They check out through a dedicated checkout, avoiding the queues

At random intervals, baskets are rescanned to discourage pilfering

Customers and stores both benefitBenefit Customer Store

Fast checkout at special lane – minimal queuing

You can pack as you shop

Other customers and cashier can’t see your purchases

Your basket total is calculated as you shop

You can be alerted to special offers and deals

The store gets detailed basket analysis by customer

?

Why have an app for this? Saves money for the store

Allows the app to extend beyond the store e.g. shopping list, push notifications of tailored discounts and offers, location based offers etc. etc. etc.

The ultimate BYOD!


Demo


Code view


Developing the UI

Wiring it up


Self scanning Demonstration


Demo


Code view


Developing the UI

Wiring it up


What are hybrid mobile apps? iPhone launched in 2007, App Store in 2008

First Android phone launched in 2008, Play Store in 2008 (as Android Market)

iPhone apps programmed in Objective C (now Swift), Android in Java

So apps had to be developed separately for both platforms

HTML5/ CSS launched in 2012 to allow Responsive Web Apps to be developed

Particularly for small form factor of mobile devices

PhoneGap Build launched 2012

Converted mobile web apps into native apps for Android and iOS, later Windows Phone

Thus was born the Hybrid App

Not as tailored for the device as a native app

But could interact with device hardware

One app would work on any supported platform

What is Telerik Platform? Can be used for hybrid apps, mobile web sites, desktop web sites,

native apps

Very sophisticated ecosystem

Aimed at developers comfortable with writing HTML5/ CSS/ JavaScript directly

Based on Kendo Mobile UI

Can also use JQuery mobile

Currently developing WYSIWIG development tool called ScreenBuilder

Progress Data Source is the official integration of the OpenEdge JSDO

You currently need a Telerik Enterprise license to use the PDS

OpenEdge/ Telerik Integration Has been going on this summer

JSDO has been made “KendoUI-friendly” and becomes the Progress Data Service

Telerik are working on a WYSIWYG designer called ScreenBuilder

I’ve used both of these tools to develop my app

I’m a beta tester/ consultant to the ScreenBuilder design team

JavaScript vs ABL JavaScript has:

Java-like syntax

No proper OO

No type checking for variables or method signatures

No syntax checking

No complex data structures like collections

Variables don’t have to be declared ***

JQuery issues:

Many functions access DOM objects using quoted strings

Conclusion: Perform as much business logic as possible in ABL

However, no escape with Telerik Platform!


Demo


Code view


Developing the UI

Wiring it up


Code view


Demo


Code view


Developing the UI

Wiring it up


Conclusions Hybrid apps are a good way to develop business applications

Telerik Platform is a great toolset if you are happy working with code

Not so good for “Application Developers”

ScreenBuilder is trying to address this

Deployment both for testing and distribution very easy

Write as much logic in the Business Entity as possible

Come to my Advanced Techniques presentation to learn more!

Questions?

Thanks for your time!

[email protected]

www.ypsilonsoftware.co.uk

mailto:[email protected]

http://www.ypsilonsoftware.co.uk/

real world app development using new telerik screenbuilder and new progress data source – the...

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