![]() PHAssetChangeRequest, Used within a Photos change block to create, update. That can construct a new photo or video asset and add it to the Photos library. PDFlib PDF library for creating and editing PDF files. The library is written on Xamarin iOS with use of Cocoa Touch classes for reading and displaying the PDF documents, without the PSPDFKit PDF viewer framework with Xamarin.iOS bindings. PDFTron Mobile PDF SDK PDFNet PDF SDK for. ![]() Before Microsoft’s update to Xamarin today, developers still needed a Mac running Xcode on their local network. Visual Studio would then remotely control the Mac to debug and test code. Microsoft’s elimination of that requirement should open up iOS development to even more devs who prefer to code in Visual Studio. “Simply pair your device with Visual Studio by scanning a QR code, and hit debug like you normally would,” during today’s demo. “The application is deployed in seconds to the Live Player app, enabling you to quickly develop and test your changes without having to recompile and redeploy your application. And you can set breakpoints and debug your application, on device, and over the air.” Unfortunately, submitting the app to the App Store and creating the final build still require a Mac. However, you can now code on a PC laptop from anywhere you want without worrying about needing a Mac nearby. One of the other drawbacks of using Live Player to code iOS apps is that it uses an interpreter for.NET code, which means apps that run through it are slower than if you coded them on a Mac. Xamarin Live Player supports Android apps as well, but developers have been able to code on Windows PCs for ages now, so it’s not that big of a feature. Xamarin - Build a Cross-Platform UX with Xamarin.Forms By| December 2015| If you’ve decided to experiment with Xamarin then you’ve decided to start an exciting journey. Unlike other development tools, which tie you to a single platform, Xamarin gives you access to four different platforms. With Xamarin, you can use your C# skills to write your application for iOS, Android, Windows Phone and the Mac OS X. It’s important to note that Xamarin delivers a fully native experience. You get native performance, complete API access on all platforms and a native UI. This article will focus on the three mobile platforms supported by Xamarin: iOS, Android and Windows Phone. The benefits of using Xamarin are exciting for many reasons. One reason is that using a platform like Xamarin is just plain fun. Xamarin is a playground to learn all these platforms in more detail while at the same time using your C# skills. Instead of having to work in multiple workspaces (Xcode, Android Studio/Eclipse and Visual Studio) with multiple languages (C#, Java and Objective-C/Swift), you can work in one familiar environment (Visual Studio) with one language (C#). There are also a few financial advantages to developing applications with Xamarin. With Xamarin, you can create a single solution that can render a version of your application on iOS, Android, Windows Phone and OS X. Code reuse and skill set reuse between these platforms represents significant cost savings and productivity gains. When it comes to monetizing your application, basic economics dictates that increasing the number of potential customers creates more opportunity for acquiring more paying customers. Collectively, the three mobile platforms supported by Xamarin represent more than 98 percent of all mobile devices across the globe. Finally, if you’re an enterprise building mobile line-of-business (LOB) applications, then having the ability to create a solution for all relevant platforms means that employees may use their own devices for work. The Traditional Xamarin Approach A Traditional Xamarin solution that supports all three mobile platforms is comprised of four projects at a minimum—a Portable Class Library (PCL) and a platform-specific project for each platform. The PCL (or a shared code project) contains the models, data access code and business logic. The code in the PCL can be referenced and reused from the other projects. However, PCLs contain no UI code. UI code is maintained in the platform-specific projects. It’s also important to note that the goal of Traditional Xamarin is to provide feature parity with the native programming environments and the platforms they represent. Everything you can do in Objective-C, Swift or Java can be done in C# with Xamarin and Visual Studio. Any API you want to access on iOS, Android and Windows Phone you can; Xamarin has 100 percent native API access. This code is also in the platform-specific projects. While the Traditional Xamarin approach will let you share significant amounts of code, there is a way to share even more code. Enter Xamarin.Forms Xamarin.Forms pushes the envelope further still when it comes to reusability. Specifically, Xamarin.Forms provides all the benefits of the traditional approach while also letting UI logic be reused across platforms.
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March 2019
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