Eyüpsultan Municipality decided to use an open source operating system in desktop computers in 2015.
The most important goal of the project was to ensure information security and reduce foreign dependency.
As a result of the research and analyzes prepared, a detailed migration plan was prepared.
As a first step, licensed office software installed on all computers has been removed. LibreOffice software was installed instead.
Later, LibreOffice training was given to the municipal staff.
Meanwhile, preparations were made for the operating system migration.
Instead of the existing licensed operating system, Turkey's developed Pardus GNU / Linux distribution was decided to use.
Applications on the Pardus GNU / linux operating system were examined in detail and unnecessary applications were removed.
And a new ISO file was created with the applications used in Eyüpsultan municipality.
This process automated the setup steps and reduced setup time.
While the project continued at full speed, the staff were again trained on LibreOffice and Pardus GNU / linux.
After their training, the users took...
One reason why I really enjoy programming using the SwiftUI framework is that it makes so easy to animate view changes. In particular, the introduction of the matchedGeometryEffect modifier, introduced in iOS 14, further simplifies the implementation of view animations. With matchedGeometryEffect, all you need is describe the appearance of two views. The modifier will then compute the difference between those two views and automatically animates the size/position changes. We have written a detailed tutorial on matchedGeometryEffect. I highly recommend you to check it out if this is the very first time you come across this modifier. In this tutorial, […]
In designing the async/await construct, Apple is hoping to increase the readability, and thus maintainability, of implementing concurrency/parallelism in Swift. What I see in it are attempts: to make asynchronous/parallel code almost look like synchronous/sequential code; and, to make asynchronous/parallel code much more semantically clear (more readable, less verbose, compact, doing what it says). These are laudable and ambitious goals, but I’d say Apple’s heading in the right direction. I’m glad because I write a lot a asynchronous code to keep my apps responsive — to create the best possible user experience for my customers. I have a feeling that […]
With the release of SwiftUI, some people have asked if UIKit is going to be dead. It’s far from dead. In iOS 15, Apple’s engineers continues to pour new features into UIKit. One of the highlights is UISheetPresentationController. This new class lets you easily create a expandable bottom sheet with just a few lines of code. If you have no ideas about what a bottom sheet is, open the built-in Maps app to take a look. It displays a bottom sheet for users to perform search and access their saved locations. The sheet is resizable. You can drag the bottom […]
Prior to iOS 15, SwiftUI didn’t come with a built-in modifier for handling search in List views. Developers have to create your own solution. We have written a tutorial showing you how to implement a search bar in SwiftUI using TextField and display the search result. With the release of iOS 15, the SwiftUI framework brings a new modifier named searchable to List views. In this tutorial, we will look into this modifier and see easily it is to implement search for a list. Basic Usage of Searchable Let’s suppose you have created a list view to display a set […]
In WWDC 2021, Apple announced tons of new features for the SwiftUI framework to make developers’ life easier. AsyncImage is definitely one of the new views, introduced in iOS 15, that is worth a mention. If your app needs to retrieve and display images from remote servers, this new view should save you from writing your own code to handle asynchronous download. AsyncImage is a built-in view for loading and displaying remote images asynchronously. All you need is to tell it what the image URL is. AsyncImage then does the heavy lifting to grab the remote image and show it […]
In WWDC 21, Apple introduced some of the most anticipated enhancements for List view in the SwiftUI framework. Prior to iOS 15, it is not very straightforward to hide line separators in a List view. We’ve shown you a workaround by using UIKit APIs in this tutorial. But this year, SwiftUI provides a dedicated modifier named .listRowSeparator for developers to control the visibility of line separators. On top of that, you are also allowed to modify the tint color of the separators. The UIKit framework has built-in APIs for you to create swipe actions in a table view. In iOS […]
The process of making an app includes various parts, with the code implementation being the most important one. However, programming is not just about writing code; it’s also about testing using the available tools each programming environment provides. The first and foremost thing we all need to understand is the importance of testing. Writing automated tests should be considered a task equal to writing code, but unfortunately that’s quite often neglected. Lack of time, the need to meet a deadline, or the the fact that one person is the only developer of an app are common reasons behind that. Making […]
A launch screen is the very first screen presented to users when your app starts up. When you create a new project with UIKit, Xcode automatically generates a storyboard file named LaunchScreen.storyboard for developers to design the launch screen of the app. However, if you are developing an app with the SwiftUI framework, the launch screen file is no longer there. So, how can you prepare a launch screen in SwiftUI projects? In Xcode 12, the tool provides a new way to implement a launch screen in SwiftUI. I will walk you through the procedures in this tutorial. Editor’s note: […]
SwiftUI is a great framework in order to build user interfaces, as it speeds up and automates many tasks comparing to UIKit. However several features were missing during the original release. Thankfully, over the course of time SwiftUI gets better, enriched with more capabilities and provides more and more built-in tools to use. One of those missing features in the first release was the toolbar; the control we all know from UIKit that allows to place navigation and action buttons at the top or the bottom of a view. That absence lasted for almost a year though, as toolbar has […]
With the release of Xcode 12.5, Apple finally lets developers record videos and animated GIF right from simulators. In this tutorial, I will walk you through this new feature. Please note that the latest version of Xcode requires you to run macOS Big Sur. Prior to Xcode 12.5, you can still record videos of a simulator. However, you need to open Terminal and run the following command: In Xcode 12.5, you can forget this command and record videos (or animated gifs) directly from simulators. Note: Have you checked out all the new features for Xcode 12? You can refer to […]
RealityKit was a new framework introduced in 2019 to implement high-performance 3D simulation and rendering. We’ve explored ARKit development for 3D objects using SceneKit. In this tutorial, we will see how to build an interactive 3D AR app using RealityKit and Reality Composer, which was released alongside with RealityKit. With Reality Composer, Apple is taking AR app development a step further, making it simpler for beginners to create an interactive AR experience without writing a line of code. You will understand what I mean after going through this tutorial. Designing the AR Scene We’ll start with Reality Composer to create […]
SwiftUI has made it very easy for developers to create a list view, similar to a table view in UIKit. When working with table view in UIKit, you can easily configure a cell’s indicator by setting the accessoryType property. For example, to disable the disclosure indicator, you set the property to .none like this: In SwiftUI, it seems Apple doesn’t offer an API to configure the disclosure indicator in the list view. In this short tutorial, I will show you a workaround to hide disclosure indicators if you need to. Let’s begin with a simple list view: If you run […]
ScrollViewReader is one of my favorite new features in the new version of SwiftUI. Before the release of iOS 14, it’s not easy to control the scrolling position of the built-in ScrollView. If you want the scroll view to scroll to a particular location, you have to figure out your own solution. With ScrollViewReader, you can programmatically make the scroll view to scroll to a specific location with just a few lines of code. In this tutorial, we will look into this new view component and see how you can apply it to your app. Creating a Horizontal ScrollView To […]
Welcome to a new tutorial, where we are going to discuss about two quite interesting, related and interconnected concepts; how to scan images and perform text recognition on them. It might sound like a complicated task, but soon you will find out that this is far from being true. Thanks to Vision framework, performing text scanning and recognition is nowadays a quite straightforward job. Let’s see briefly a few details regarding both tasks. In order to scan images with a device, VisionKit framework provides a specific class called VNDocumentCameraViewController for that purpose. It’s a UIKit view controller that allows to […]
When the SwiftUI framework was first released, developers are required to wrap the MKMapView class in order to embed a map in a SwiftUI application. With the release of Xcode 12, the latest version of SwiftUI provides a native SwiftUI Map view for you to display a map interface . Optionally, you can display annotations using the built-in annotation views such as MapMarker. In this tutorial, I will show you how to use the Map structure in SwiftUI and create annotations at a specific locations on the map. Displaying a Map View in SwiftUI By referring the documentation of Map, […]
Slow automated tests
Importing photos and videos as media items is one of the most common features that the majority of iOS applications include. In general lines, there are two ways to do that; either by using a system-provided controller, or by implementing a custom picker manually. Obviously, going with the second approach is a much harder and complicated process. In this post we are going to focus on the first option, and particularly on a brand new photo picker controller that was first introduced in iOS 14. That is the PHPicker API! Let’s take a look at a few interesting and useful […]
If you have some experience with iOS app development, you should be very familiar with the data source protocols such as UICollectionViewDataSource and UITableViewDataSource. Traditionally, to populate data in a collection view, you have to adopt the UICollectionViewDataSource protocol and implement two required methods: func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell Since the release of iOS 13, Apple introduced a new approach known as Diffable Data Sources to manage data for a collection view. This approach replaces the old approach which uses the UICollectionViewDataSource protocol. You no longer need […]
In the earlier tutorial, we showed you how to work with TabView to display a tab bar interface. In iOS 14, Apple introduced a new style called PageTabViewStyle in the SwiftUI framework for developers to create paged scrolling interface. In this tutorial, we will show you how to implement his type of tab view style. Let’s begin with a simple tab view. Assuming you’ve created a SwiftUI project, you can replace the ContentView struct like this: When you run the app in the preview canvas, this gives you a tab view with 5 tab items. Creating a Paged Scrolling View […]
For experienced developers, you probably have used the Core Graphics APIs to draw shapes and objects. It’s a very powerful framework for you to create vector-based drawings. SwiftUI also provides several vector drawing APIs for developers to draw lines and shapes. In this tutorial, you will learn how to draw lines, arcs, and pie charts using Path and the built-in Shape such as Circle and RoundedRectangle. Here are the topics we’ll cover: Understanding Path and how to draw a line How to draw curve How to draw a pie chart Note: This is a excerpt of our Mastering SwiftUI book. […]
We are launching an iOS 14 update for our flagship iOS programming course – Beginning iOS 14 Programming with Swift. The course has been fully updated for iOS 14, Swift 5.3, and Xcode 12. The beginner book is still written for beginners who want to grasp the iOS development skills and train yourself to become a profession iOS developer. We have reviewed all the source code and re-captured all screenshots to support Xcode 12. The demo app is also fully updated for iPhone 12 and iPad Pro, plus it now supports dark mode. On top of all that, we will […]
