Book Image

Appcelerator Titanium Smartphone App Development Cookbook

By : Boydlee Pollentine, Jason Kneen, Jason Kneen
Book Image

Appcelerator Titanium Smartphone App Development Cookbook

By: Boydlee Pollentine, Jason Kneen, Jason Kneen

Overview of this book

This book will take you through the process of building cross-platform, native UI applications for the mobile from scratch. You will learn how to develop apps, how to use GPS, cameras and photos and how to build socially connected apps. You will also learn how to package them for submission to the App Store and Google Play. This cookbook takes a pragmatic approach to creating applications in JavaScript from putting together basic UIs, to handling events and implementation of third party services such as Twitter, Facebook and Push notifications. The book shows you how to integrate datasources and server APIs, and how to use local databases. The topics covered will guide you to use Appcelerator Studio tools for all the mobile features such as Geolocation, Accelerometer, animation and more. You’ll also learn about Alloy, the Appcelerator MVC framework for rapid app development, and how to transfer data between applications using URLSchemes, enabling other developers to access and launch specific parts of your app. Finally, you will learn how to register developer accounts and publish your very own applications on the App Store and Google Play.
Table of Contents (21 chapters)
Appcelerator Titanium Smartphone App Development Cookbook Second Edition
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Creating a "Pull to Refresh" mechanism in iOS


What if you want the user to be able to refresh the feed data in your table? You could create a regular button, or possibly check for new data after arbitrary time intervals. Alternatively, you can implement a cool "pull and refresh" mechanism, which has become the de facto standard refresh method in iOS.

In this recipe for our recipe finder app, we'll implement this very type of refresh mechanism for our recipes' feed using the built-in, native refresh control.

How to do it...

Open your recipes.js file and type the following under the creation of tblRecipes:

if (Ti.Platform.name === "iPhone OS") {
        var p2r = Ti.UI.createRefreshControl({
            tintColor: '#000'
        });

        tblRecipes.refreshControl = p2r;

        p2r.addEventListener('refreshstart', function(e) {

            refresh(function() {
                p2r.endRefreshing();
            });

        });
} else if (Ti.Platform.name === "android") {
        win.addEventListener...