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BlackBerry Development Fundamentals by John M. Wargo

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3The Connected BlackBerry

The wireless network connection used by a BlackBerry smartphone is what makes the majority of mobile applications useful. Unfortunately, a developer building a network-connected mobile application cannot simply open a connection to any server; it is more complicated than that. An application can use different paths to reach a server, and the developer has to understand which connection to use depending on the situation. Although a developer can develop BlackBerry applications without knowing about all the connectivity options available to BlackBerry smartphones, it’s likely he will make decisions differently after he knows what’s available. The BlackBerry platform offers developers special abilities, ones that are not ...

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