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Custom UINavigationBar appearance - Multiple UIBarButtonItems

 After basic settings we set UINavigationBar colors and clear background image, and set our own separator line with an image. After that, we create Navigation Bar UIBarButtonItems programmatically and set their color too. Finally, we show and hide UINavigationBar at switching between ViewControllers, and hide StatusBar. These are very useful things, which can be present nice solutions. 

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CoreData Tutorial Part 5/5 - Model Versioning, Lightweight Migration, Model Mapping

When you need to change your Core Data Entities or structure, you have to add new model version before you send your App in AppStore. If you change just attributes or fetched templates, it’s not needed, you can do it without consequence. But if you want to add a new Entity, you have to migrate your persistent store to a new model version. You should also set mappings for the migration. In this tutorial, we add model versions, model mappings, and using Lightweight Migration.

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Scroll Programmatically with keyframe animation tutorial

 Sometimes you need to use scrolling programmatically. In this case, you can use keyframe animation. Int his tutorial, we create TableviewController with basic settings, and after that we detect when the user start scrolling or stop scrolling with detect scroll offset, and we begin programmatically keyframe animation at use scrollViewDidEndDragging. 

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Core Data tutorial part 4.2 / 5 - Using NSFetchedResultsController, Reorder TableViewCells with LongPressGesture

In this Core Data Tutorial, we do very important and useful things: First we set NSFetchedResultsController, and do changes in the code, create displayOrder attribute.With LongPressGestureRecognizer we can reorder TableViewCells and update Core Data cells with displayOrder attribute, which saved immediately in Core Data.

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“You must to know!” Collection - Core Data simple explanations

 With Core Data framework you can manage your objects in your App. You can manage your object’s life-cycle and object graph, so the attributes and relationships of your entities. You can edit, save modify and rebuild your database. You can group, filtering, organizing your data. I try to explain just the basics with this example.

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