In the seventh installment of the Beginning iOS Development screencast series, we are looking at Data Persistence in iOS Applications. The screencast includes a short keynote overview of the different storage methods that you can use in an iOS application as well as the pros and cons of each method. After the keynote, the four implemented data storage methods are explained in detail.
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After reading First steps with Core Data, we find ourselves enlightened in the way Core Data works and how it can help us develop data rich applications. However, the surface was only just scratched, and in some applications you might be left wondering how to implement a certain piece of functionality.
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Core Data is a framework Apple provides to developers that is described as a “schema-driven object graph management and persistence framework.” What does that actually mean? The framework manages where data is stored, how it is stored, data caching, and memory management. It was ported to the iPhone from Mac OS X with the 3.0 iPhone SDK release.
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