The BlackBerry smartphone is today's #1 mobile platform for the enterprise and also a huge hit with consumers. Until now, it's been difficult for programmers to.
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BlackBerry Development Fundamentals
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The Cascades framework is built on top of the Qt application framework. This architecture allows Cascades to benefit from the Qt object model, event model, and threading model. Qt is a cross-platform application framework that's mostly used to develop UI-driven apps. The QtCore modules supply an app developer with a Qt event loop and a signals and slots mechanism.
The signals and slots mechanism in Qt allows for powerful and flexible inter-object communication. This is generally used as the primary mechanism for sending and receiving messages within an application process. To learn more about this mechanism, see Signals and slots. Qt provides thread support in the form of platform-independent threading classes, a thread-safe way of posting events, and signal-slot connections across threads. This approach makes it easy to develop portable multi-threaded apps.
To learn more about how Qt is supported by Cascades , see Qt fundamentals. Although BPS has a number of Cascades equivalents, it's still useful as it provides developers with a single consistent interface that hooks into a number of different platform services.
BlackBerry Development Fundamentals
To see a complete listing of the core APIs that are available, see Library support. Got questions about leaving a comment? Get answers from our Disqus FAQ. Before you start developing, you'll need to visit the Downloads tab. Now featuring a filter control, the Sample apps tab allows you to search for samples by name or by feature. The Documentation tab contains tons of examples, tutorials, and best practices to guide you along the path towards building an awesome app.
You can use the left-hand navigation to choose how you would like to browse the reference: If you have an idea of what you are looking for, start typing it in the Filter box.
Reward Yourself
Cascades fundamentals The Cascades framework lets you create visually engaging native apps with relative ease. The Cascades and Qt frameworks When you develop a Cascades app, it's important to understand how the different pieces of the framework fit together. Creating a rotating button QML.