By Dan Zucker, Ray Rischpater
Whereas media buzz on a regular basis circulates round iPhone and Android, Nokia nonetheless leads the pack when it comes to global industry percentage. Symbian, for example, is still the main common cellular working method. With Nokia's open improvement platform, the possibilities on hand for cellular builders to focus on this enormously well known working approach are plentiful and transparent. Use Qt to focus on either systems: Symbian, the main known cellular working method on the earth, in addition to MeeGo, the Intel/Nokia platform for cellular units. improve HTML5 functions for either Symbian and MeeGo structures that may run with little amendment on different cellular systems. beginner builders study the fundamentals of Qt with a cellular slant, giving them the facility to focus on either computer and cellular structures. What you’ll research how you can do Qt fundamentals what's QML or the Qt Markup Language what's Qt for Meego and the way to exploit it and the way to exploit it find out how to paintings with the internet Runtime Why cellular improvement is diversified how one can port/support MeeGo and Symbian structures Who this booklet is for This must-have ebook is for cellular builders desirous to goal the Meego and Symbian systems (either because the sole platform or in cross-platform development), and present cellular builders eager to commence utilizing Qt. desk of Contents Introducing Nokia’s software program Platform Designing Your software operating with the Nokia Qt SDK starting Qt improvement Doing extra with Qt Introducing Qt speedy constructing with HTML5 checking out Your software Deploying Your software
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Extra info for Beginning Nokia Apps Development: Using MeeGo, Mobile QT and OpenSymbian
Furthermore, connecting over the network can be slow. So design your application to use network connections as efficiently as possible. Allow the user to manage the connections when appropriate. Ensure that sufficient status information is presented to the user about the connection state. Design your application to gracefully handle on and offline modes. Usability for Enterprise Applications Enterprise applications are typically administered by IT departments. Remember to build in features useful for administrators.
An example of this is the red end key. Typically, to exit an application, you choose the “exit” menu sub-option from the “options” menu. Pressing the red end key is a shortcut path to the same exit functionality. When designing touch areas for your application, ensure the touch targets are large enough to be easily selected. Historically, the Symbian S60 UI style provides the following guidelines: 7 x 7 mm with 1 mm gaps for index finger usage. 8 x 8 mm with 2 mm gaps for thumb usage. List type of components should have minimum of 5 mm line spacing.
Input methods are usually different for a mobile device. How will this impact your application design? How does the environment affect how the user interacts with his device? Is this application intended to be used when one-handed operation is critical? Are you expecting the user to quickly check for a particular piece of information, or will the user be engaged in a protracted interaction? Furthermore, the device is always on and always connected. Your application can be designed to send notifications to the user at odd times.