Download E-books Professional iPhone and iPad Database Application Programming PDF

By Patrick Alessi

A much-needed source on database improvement and firm integration for the iPhone

An huge, immense call for exists for purchasing iPhone purposes into the firm and this publication publications you thru the entire valuable steps for integrating an iPhone app inside of an latest company. skilled iPhone builders will the best way to make the most of the integrated services of the iPhone to with a bit of luck enforce a data-driven software for the iPhone.

Coverage includes:

  • Introducing Data-Driven Applications
  • The iPhone and iPad Database: Sqlite
  • Displaying Your info: The UITableView
  • ipad Interface Elements
  • Introducing middle Data
  • Modeling facts in Xcode
  • Building a middle info Application
  • Core Data-Related Cocoa Features
  • Core facts Migration and Performance
  • Working with Xml at the iPhone
  • Integrating with net Services

Professional iPhone and iPad Database program Programming will get you on top of things on constructing data-driven purposes for the iPhone.

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CH005. indd 131 9/18/10 9:34:24 AM 132 ❘ bankruptcy five INTRODUCING center info you will see in determine 5-3 that the development entity has an characteristic referred to as timeStamp. if you happen to choose the development entity after which pick out the timeStamp estate within the homes pane, you will find the main points of the timeStamp characteristic within the aspect pane. you need to see that the timeStamp characteristic is non-compulsory and that it's a Date kind. Your controlled item context will deal with the items defi ned by means of the development entity. keep in mind that should you created the continual shop Coordinator, you initialized it with all the controlled item types within the package. Then, in the event you created the context, it used the continual shop Coordinator. subsequent, you will find the way you use the development entity to create and deal with middle facts controlled items in code. RootViewController The RootViewController is a subclass of UITableViewController and comprises the TableView that you'll use to show your information. This type has a estate that holds the context, which the appliance Delegate units whilst it creates the RootViewController example. The RootViewController additionally has a estate that holds an NSFetchedResultsController. controlled item Fetch Request The NSFetchedResultsController category is the glue that binds the result of a fetch request opposed to your datasource to a TableView. you'll examine the NSFetchedResultsController category in additional aspect in bankruptcy 6. determine five- four exhibits a high-level view of the way the NSFetchedResultsController classification works. the category takes a fetch request and a context as its inputs and calls delegate tools whilst the knowledge within the fetch request alterations. The controller implements tools that you simply use whilst enforcing the TableView delegate equipment that you're accustomed to from bankruptcy three. Context NSFetchedResultsController Fetched effects Controller Delegate determine five -4: NSFetchedResultsController utilization The fi rst factor to note is that the RootViewController implements the NSFetchedResultsControllerDelegate protocol. you will see this within the RootViewController. h header fi le. do not forget that pointing out that you just enforce a protocol is a freelance that commits you to imposing convinced tools. periods that don't enforce this protocol can't be delegates for an NSFetchedResultsController. the subsequent is the code for the getter procedure for the fetchedResultsController estate: - (NSFetchedResultsController *)fetchedResultsController { if (fetchedResultsController ! = nil) { go back fetchedResultsController; } /* CH005. indd 132 9/18/10 9:34:24 AM Using center info: an easy job supervisor ❘ 133 arrange the fetched effects controller. */ // Create the fetch request for the entity. NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init]; // Edit the entity identify as acceptable. NSEntityDescription *entity = [NSEntityDescription entityForName:@”Event” inManagedObjectContext:managedObjectContext]; [fetchRequest setEntity:entity]; // Set the batch dimension to an appropriate quantity. [fetchRequest setFetchBatchSize:20]; // Edit the type key as acceptable.

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