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Beginning BlackBerry 7 Development by Anthony Rizk, Kevin Michaluk, Rob Kao, Dante Sarigumba

By Anthony Rizk, Kevin Michaluk, Rob Kao, Dante Sarigumba

Are you interested by developing BlackBerry apps utilizing the most recent BlackBerry 7 and BlackBerry Java Plug-in for Eclipse? Then this is the book for you. Beginning BlackBerry 7 improvement deals a hands-on method of studying easy methods to construct and set up refined BlackBerry apps utilizing the newest instruments and methods available.   Assuming just some programming history in Java or an identical language, this booklet begins with the fundamentals, providing step by step tutorials that take you thru downloading and fitting the BlackBerry improvement atmosphere, developing your first apps, and exploring the BlackBerry APIs. you will be brought to the newest beneficial properties on hand within the most modern BlackBerry 7 utilizing BlackBerry Java Plug-in for Eclipse, together with BlackBerry program Platform prone, techniques for utilizing multimedia with the BlackBerry, and instruments for expanding app functionality. To around out the whole improvement strategy, you will additionally detect the various methods you could package deal and distribute your apps, from deploying apps by yourself web site to directory your apps on the market within the BlackBerry App global. What you’ll study how you can receive and arrange the instruments you will need to boost BlackBerry purposes the best way to increase Java-based BlackBerry functions the right way to combine BlackBerry software Platform companies into your app complex innovations for person interface layout info at the most recent APIs on hand to BlackBerry builders how one can use networking, location-based prone, and lots of different good points of the BlackBerry platform on your software Who this booklet is for This ebook is for these drawn to constructing local apps for the BlackBerry kin of units and smartphones. BlackBerry improvement adventure isn't required, yet readers must have a few event with Java and net programming. desk of Contents surroundings the Stage     hi World        What Makes a BlackBerry Application?                        consumer Interface Basics                        past the fundamentals of consumer Interfaces                                 Storing Data              hi available in the market! creating a Network-Enabled Application                           the place Am I? utilizing Location-Based Services                   Getting Your App in the market: Packaging and Publishing      subsequent Steps 

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Html. You can also see the Javadoc for any class or method in the Eclipse editor by hovering the mouse pointer over the class or method name for a few seconds, as shown in Figure 3–2. Figure 3–2. Viewing the Javadoc for the MainScreen class in Eclipse by hovering the mouse pointer CHAPTER 3: What Makes a BlackBerry Application? The BlackBerry Application Life Cycle BlackBerry applications behave very much like ordinary desktop applications. If you’ve had experience with C, C++, or Java on the desktop, some of the ideas in the previous chapter probably seemed very familiar to you.

This means that having two classes in two different modules with the same fully qualified class name will cause a conflict. HelloWorldMainScreen, that’s OK. Libraries can help you get around naming conflicts like this by moving common code into one place, but they can also cause problems if you’re not careful and have the same classes included in a library and your application. 45 46 CHAPTER 3: What Makes a BlackBerry Application? Creating an Alternate Entry Point An alternate entry point is exactly what it sounds like: another way for the user or BlackBerry to start your application.

Remember the alt Application argument you entered earlier on the Alternate Entry Points screen? Let’s use it in the code. "); } add(labelField); } CHAPTER 3: What Makes a BlackBerry Application? Figure 3–7. equals("alt")) { mainScreen = new HelloWorldMainScreen(true); } else { mainScreen = new HelloWorldMainScreen(false); } pushScreen(mainScreen); } In the new HelloWorldApp constructor, we first check the length of args. The BlackBerry device will split the argument string that we specified in the project properties for our alternate entry point into words based on whitespace, and place each word into a separate element of the array.

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