HTML Drag and Drop – New!
The advent of modern HTML has revolutionized the traditional web scene (and sense). In particular, modern HTML’s mandatory support for incorporating the ever-increasing number of APIs* into browsers has enable web pages to function more and more like desktop applications. This empowerment has brought about new possibilities and opportunities for the next generation of web applications that are more autonomous and can work offline, on multi-platforms, free of third party plug-ins and less reliant on server-side scripting. In the foreseeable future, it is not unimaginable that the web browser will replace our traditional metaphor of desktops on our computers, that of a web-based desktop.
Over the years, modern HTML specification has added a bag full of APIs that cover a wide spectra of functionality and features that power the future web browsers and mobile devices. In this article, we will dip into the modern HTML API grab bag and draw out one of them for discussion and exploration – Drag and Drop. Continue reading ›
Best Mobile Article of January 2017 (First Prize) by Code Project
Every app involves data. Most data are supplied by users through the various input controls, such as text field, check box, radio group, spinner, and button. While some data is transient, most will require to stay or persist even after the app has stopped running. Android provides many ingenious technologies for storing persistent data locally. In this article, you will learn to perform
CRUD, i.e. Create, Read, Update, and Delete, on data using a SQLite Database on Android.
On your favorite Android IDE, start a new Android app project. Let’s give it an application name of “AndroidSQLite” and a domain name of “peterleowblog.com”. The resulting package name of your project will be “com.peterleowblog.androidsqlite“.
In the project, create an Android activity called “MainActivity”. As shown in Figure 1, the user interface (UI) of this “MainActivity” comprises the following controls: Continue reading ›
Websites today serve not only traditional desktop monitors, but also televisions and handheld mobile devices like tablets and smartphones. Notwithstanding the myriad screen sizes, consumers, constantly connected and switching between devices anywhere anytime, expect the same degree of usability they experience across these devices. How can websites provide for such an enormous range of screens and keep up with new screens of the future? The answer lies in Responsive Web Design. In this article, I am introducing the three key methods of designing for responsible web. They are
Resize, which I aptly coin the “Three R’s of Responsible Web Design“. First, let’s grasp the realities and challenges of the new multi-screen world. Continue reading ›
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