In this article, I would like to showcase the basics of iOS data persistence with Swift, by presenting a general overview of what’s possible. Data persistence is the mechanism of storing any type of data to disk so that the same data can be retrieved without being altered when the user opens the app next time. While you could save the same data on a server, in this tutorial we are going to describe all the ways to store data locally in iOS apps.
In this article we are going to learn how to implement the powerful MVVM design pattern in SwiftUI applications that are leveraging the Combine framework. The combination of these 3 concepts will be the standard of iOS app architecture for the years to come, so it’s really important to set up a solid groundwork when it comes to designing Swift apps going forward.
In this tutorial we will build a React Native app that allows users to upload images and videos from their camera and photo library directly into a AWS S3 bucket. As AWS is the leader of cloud providers, a huge part of the React Native ecosystem is using AWS as the backend for their app. With the release of AWS Amplify, using AWS as backend for a React Native app has never been easier to implement.
Presenting data through graphs and charts is one of the most remarkable features of mobile applications today. iOS Charts make apps look more beautiful and noticeably more attractive. We already integrated a number of Swift Charts into many mobile app templates such as the Dashboard iOS App Template or Personal Finance iOS App Template.
An App Walkthrough Screen is a slider screen which allows the user to learn everything about the features of a mobile app when they open the application for the first time. We can implement this feature in a React Native application in multiple ways. In this React Native tutorial, we describe how we implemented the Walkthrough Screens in all of our React Native Templates so that you can speed up your app development by reusing our open source code.
When designing a template for your mobile app, there’s always the need of using images, icons, and various other UI assets. If you’re only working on a prototype, investing too much time or money for purchasing these assets is not really worth it, so you always end up looking for free mobile icons and images. In this article, we list a handful of websites that offer free mobile icons and images, which you can use in your mobile app, without worrying about copyright infringement.
Flutter is a cross-platform application development framework released in December 2018 by Google. Since then, its community has been growing rapidly, and the Flutter framework is being adopted by many top-level software development companies. Let’s take a look at how you can create your first Flutter app in no time.
In today’s privacy-focused world, keeping a high bar for the security of our iOS apps, by storing critical user data securely is more important than ever. When handling sensitive user data such as passwords, in-app purchases, etc, in iOS apps, a mobile developer needs to take security into consideration. In our App Templates, we are taking security very seriously, by making it part of our core values. In this tutorial, we will show you how to use the Keychain in Swift to store sensitive user data by implementing a persistent login feature on iOS.
Sign in with Apple is a common requirement for React Native apps that offer third-party login options such as Google, Facebook, LinkedIn, or Amazon. It also gives iOS users a privacy-friendly authentication option that works well with Firebase Authentication.
As we have mentioned in previous posts, there are more and more iOS applications in App Store and obviously we are living in a highly competitive market. Hence, creativity and differentiation are essential for success. In today’s article, we will show you a great feature that makes apps feel more playful and performant – haptic feedback. We’ll learn how to generate haptics feedback in Swift with code examples.
Optional imports are useful when a React Native app has platform-specific code, feature-gated screens, optional assets, or native modules that should only load in one environment. They are also easy to misuse. Metro still needs to know what files can be bundled, so arbitrary runtime strings are not a good import strategy.
iOS has built-in support for adding shadows to UIView components. All you need to do in order to add a shadow to a UIView object is to set the shadow properties of the view’s layer. Shadows are a powerful user interface design element, making the visual components stand out by giving them a 3D look and feel. In order to display a shadow in Swift, iOS allows you to specify its color, opacity, offset and radius. Our recommendation is to try out different values for these variables, to see for yourself what are they exactly.