Introduction

A command-line interface (CLI) is a form of interacting with a computer program where the user issues commands to the program in the form of successive lines of text (command lines). Tizen also provides SDK with Command Line Interface (CLI) for developing Tizen applications without using the Tizen Studio IDE. It includes the entire development process from creating the project to running the application.

In this document, we will take a tour on a sample web application development using CLI from scratch.

Tizen provides API-level access control for security-sensitive operations which, if not used correctly, can harm user privacy and system stability. Therefore, web applications that use such sensitive APIs must declare the required privileges in the config.xml file and user notification is provided on the basis of declared privileges. This page shows privileges for web application.

This document provides suggestions and guidelines for improving the performance of Web applications on Tizen.

1 Optimizing Resource Loading Performance

Most of the loading time for a Web application consists of downloading resources, such as HTML, JavaScript, CSS, and image files. Therefore, optimizing resource loading performance is the key to improving the loading speed of a Web application.

Coding Tips for Performance-driven Development

This section gives tips for handling code performance-effectively.

1 Variables and Literals

Optimizing Rendering Performance

There are several ways to improve the rendering performance, including initializing the application early, keeping the UI responsive, minimizing document reflow, and updating the page only partially.

Optimizing Resource Loading Performance

Most of the loading time for a Web application consists of downloading resources, such as HTML, JavaScript, CSS, and image files. Therefore, optimizing resource loading performance is the key to improving the loading speed of a Web application.

Introduction

With the introduction of multi-touch smart phones a need for implementation of the multi-touch API in HTML5 emerged. W3C started working on implementation of touch API in 2011 and the final version was published in October 2013. The API is quite simple and we will investigate it in details.

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