This is the final lesson in the Swift Picker View tutorial series and in it you learn how to do the following: Configure the pickerView to display two components. Preselect a row to display in the pickerView components’ selection indicators. Display objects of the itemNameList array in the first component rows. Display objects of the itemPhotoList in the […]
This is part 2 of the Swift Picker View tutorial and in it you learn how to do display item images and names in a single component of PickerView. Here’s what the ViewController.swift file looks like now:  Code presented on this page assume you are using Xcode 6.4 and Swift version 1.2. So if you are using a […]
In this lesson you learn how to perform the CloudKit operation that delete a single record from the CloudKit’s public database. Start by going to the CloudKit Dashboard and add these Items in the public database’s Default Zone. Now, launch the CloudKitGuide project in Xcode and modify the storyboard scene and its class file so then look like Figure 2 and Figure […]
In last week’s workshop, you learned about three JOIN queries supported by the SQLite engine and they are: INNER JOIN, LEFT OUTER JOIN, and CROSS JOIN. In this workshop, you will learn how to perform an INNER JOIN in an Xcode project I’ve created for this workshop. So go ahead and download it. Overview of The SqliteJoinQuery Application Upon […]
If you are a new visitor to our site, please read the Getting Started guide. In this workshop, you will learn how to use the NSKeyedArchiver and NSKeyedUnarchiver class to save and restore your application’s data in a binary file. You will also learn how to create a binary file in the application’s sandbox. iOS provides several mechanism for saving and […]

UIDocument Demystified: A Step-by-step Guide on Local and iCloud Document Storage

 

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