React Tutorial

React Tutorial


Build Xamarin.iOS Apps using iOS 14 and Xcode 12

Support for iOS 14 and Xcode 12 to accompany Apple’s Xcode 12 GM release was just announced! Now, build your Xamarin.iOS (and Xamarin.Forms for iOS) apps with Xcode 12 GM and submit your iOS 14, tvOS 14 or watchOS 7 apps to the Apple App Store. At this time, Apple has held back the latest updates for macOS Big Sur that you may have been using during their early Xcode 12 previews. We will highlight those updates at a future time when they ship.

What’s New With iOS 14 and Xcode 12?

iOS 14 provides the next generation of existing features like three-column layouts and new picker styles, and introduces some exciting new features such as WidgetKit support, ScreenTime, NearbyInteraction, and more!

Color Picker Customization with UIColorPickerViewController

Apps can set the initial selected color in the picker and have the option to hide the alpha slider. The controller can respond when users dismiss the color picker or change selected color.

Image UIColorWell


    Data="M29.4311121,0 C26.6763107,0.0058575 23.9796704,1.5737917 22.5928855,3.965729 L1.0238921,41.5342563 C-0.3412974,43.9325978 -0.3412974,47.067402 1.0238921,49.465744 L22.5928855,87.034271 C23.9798162,89.426228 26.6763107,90.994582 29.4311121,91 L72.568946,91 C75.323748,90.994143 78.020241,89.426228 79.407172,87.034271 L100.976161,49.465744 C102.34135,47.067402 102.341209,43.9325978 100.976161,41.5342563 L79.407172,3.965729 C78.020241,1.5737917 75.323748,0.0054182 72.568946,0 L29.4311121,0 Z M29.8225901,21.9780432 C29.8818491,21.9721857 29.9440029,21.9721857 30.0034464,21.9780432 L37.444074,21.9780432 C37.773437,21.9848769 38.0929203,22.1757336 38.2573978,22.4623994 L50.8795281,45.015639 C50.9430615,45.127146 50.9839987,45.251384 50.9995323,45.378901 C51.0150756,45.251354 51.055974,45.127107 51.1195365,45.015639 L63.711456,22.4623994 C63.881153,22.167045 64.215602,21.975134 64.554853,21.9780432 L71.995483,21.9780432 C72.654359,21.9839007 73.147775,22.8160066 72.839019,23.4008677 L60.518299,45.500005 L72.839019,67.568869 C73.176999,68.157088 72.671442,69.027775 71.995483,69.0219864 L64.554853,69.0219864 C64.209673,69.019028 63.873247,68.81384 63.711456,68.507327 L51.1195365,45.954088 C51.0560031,45.84258 51.0150659,45.718333 50.9995323,45.590825 C50.983989,45.718363 50.9430906,45.842629 50.8795281,45.954088 L38.2573978,68.507327 C38.1004103,68.805171 37.7792269,69.008397 37.444074,69.0219864 L30.0034464,69.0219864 C29.3274867,69.027814 28.8220664,68.157088 29.1600463,67.568869 L41.4807624,45.500005 L29.1600463,23.4008677 C28.8647037,22.86725 29.2250368,22.0919422 29.8225901,21.9780432 L29.8225901,21.9780432 Z" />

    Text="UIColorWell:" />

    ValueChanged="OnColorChanged" />


As you may see, this is XAML using a UIColorWell directly in a Xamarin.Forms page (see Native Views for more on that). In the ValueChanged handler, reference both the native iOS control as well as the new Xamarin.Forms Path view to set the color. If your code is cross-platform, use compiler directives to keep platform code separated. (The XAML compiler automatically handles this for you).

private void OnColorChanged(object sender, EventArgs e)
#if __IOS__
    var colorWell = (UIColorWell)sender; 
    nfloat r, g, b, a;
    colorWell.SelectedColor.GetRGBA(out r, out g, out b, out a);
    Xamagon.Fill = new SolidColorBrush(
        new Color((double)r, (double)g, (double)b, (double)a));

Xamarin.Forms does not ship a cross-platform color picker in the box. So this is a powerful way to use the latest native controls today. One great benefit of using XAML here is that XAML Hot Reload works too!

Psssst! For areas to make a contribution, the Xamarin Community Toolkit is a perfect place to PR a cross-platform color picker.

New Picker Styles for Date and Time

With iOS 14, Apple introduces new ways to select date and time values. Now, users can choose values from a calendar view or using a numeric keypad.

Button Menus

Popover menus from buttons offer a new lightweight alternative to action sheets, context menus, and don’t dim the screen on appearance.

Three-column layouts with UISplitViewController

Split view interfaces support triple-column layouts with primary, secondary, and supplementary columns.

Embedded WidgetKit Support

This release of the SDK adds support for embedding WidgetKit extensions written in Swift into your main Xamarin.iOS application. This enables you to build apps with Widget support as soon as possible.

You create a “hybrid” application with a SwiftUI extension embedded in a Xamarin.iOS application.

Leveraging WidgetKit support will require a few manual changes to your project file. Add a section like this to your project:

<AdditionalAppExtensions Include="$(MSBuildProjectDirectory)/../../native">
     <BuildOutput Condition="'$(Platform)' == 'iPhone'">build/Debug-iphoneos</BuildOutput>
     <BuildOutput Condition="'$(Platform)' == 'iPhoneSimulator'">build/Debug-iphonesimulator</BuildOutput>

Change the path included on the first link to point to the build directory of your Swift UI extension.

It may be helpful to enable a project relative output location in your Xcode project (File → Project Settings) to have a simpler path to locate:

This sample application uses JSON serialization to transfer data from a Xamarin.iOS app to a sample Widget for display. Those interested in WidgetKit are invited to provide their feedback in the Github issue.

New and Updated Framework Highlights

  • CoreLocation and MapKit are updated to support location privacy and approximate location.
  • ClockKit now supports creating complications for Apple Watch.
  • ScreenTime provides tools to track and manage device usage.
  • Accessibility adds new features to improve usability for everyone.
  • NearbyInteraction enables devices to interact using relative spatial awareness.

Get Started Now!

Get a detailed walkthrough of how to set up your development environment by reviewing the Getting Started Guide for iOS 14. In short, you will learn how to download and install:

And that is it! Xcode 12 is now your default installation. It will be used by Visual Studio to build your iOS projects. You can review this setting from Preferences > Projects > SDK Locations > Apple. Begin building your apps against Xcode 12 and utilize iOS 14 APIs within your Xamarin apps. Detailed instructions can be found in the Xamarin Documentation Portal. Also, check the Xamarin.iOS 14 release notes for the latest information on changes in the GM release of Xcode 12.

#ios #xamarin #xaml #xcode

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Build Xamarin.iOS Apps using iOS 14 and Xcode 12
Fredy  Larson

Fredy Larson


How long does it take to develop/build an app?

With more of us using smartphones, the popularity of mobile applications has exploded. In the digital era, the number of people looking for products and services online is growing rapidly. Smartphone owners look for mobile applications that give them quick access to companies’ products and services. As a result, mobile apps provide customers with a lot of benefits in just one device.

Likewise, companies use mobile apps to increase customer loyalty and improve their services. Mobile Developers are in high demand as companies use apps not only to create brand awareness but also to gather information. For that reason, mobile apps are used as tools to collect valuable data from customers to help companies improve their offer.

There are many types of mobile applications, each with its own advantages. For example, native apps perform better, while web apps don’t need to be customized for the platform or operating system (OS). Likewise, hybrid apps provide users with comfortable user experience. However, you may be wondering how long it takes to develop an app.

To give you an idea of how long the app development process takes, here’s a short guide.

App Idea & Research


_Average time spent: two to five weeks _

This is the initial stage and a crucial step in setting the project in the right direction. In this stage, you brainstorm ideas and select the best one. Apart from that, you’ll need to do some research to see if your idea is viable. Remember that coming up with an idea is easy; the hard part is to make it a reality.

All your ideas may seem viable, but you still have to run some tests to keep it as real as possible. For that reason, when Web Developers are building a web app, they analyze the available ideas to see which one is the best match for the targeted audience.

Targeting the right audience is crucial when you are developing an app. It saves time when shaping the app in the right direction as you have a clear set of objectives. Likewise, analyzing how the app affects the market is essential. During the research process, App Developers must gather information about potential competitors and threats. This helps the app owners develop strategies to tackle difficulties that come up after the launch.

The research process can take several weeks, but it determines how successful your app can be. For that reason, you must take your time to know all the weaknesses and strengths of the competitors, possible app strategies, and targeted audience.

The outcomes of this stage are app prototypes and the minimum feasible product.

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Want to develop the iOS app in India

WebClues Infotech with its head office in India has created a huge presence across the world over time and has served clients in all of the major countries around the world. WebClues Infotech with a highly skilled development team of 120+ members can help you deliver a better result at a reasonable cost.

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iOS App Development Agency in the USA

iOS App Development Agency in the USA

Whenever a start-up in the USA launch an MVP version of the app they prefer to launch it only for iPhone user because the US has a large market of iPhone users in comparison to Android. The recent phenomenon of Clubhouse is the biggest example.

Want to develop an iOS app in the USA?

With 2 office locations across the USA and 6 worldwide, WebClues Infotech has the experience of serving a huge client base of 600+. After such a satisfied client base, WebClues Infotech is prepared to serve you with and iOS App Development Services in the USA.

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iOS App Development Company in the United Kingdom

iOS App Development Company in the United Kingdom

Considering the two most popular operating systems Android and iOS, the latter one is comparatively less complex and needs less time to develop. So usually whenever a new app is launched it is launched on iOS platforms.

Want to Develop an iOS app in the United Kingdom?

WebClues Infotech with its presence across the world and an office in London as well has helped clients by completing 950+ projects in just 8 years since its launch. The project completion figure in such a short time shows the quality of work WebClues Infotech does and so clients trusted us with the iOS app development work.

Want to know more about iOS App Development Services in the United Kingdom?


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View Portfolio

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Hire iOS App Developer

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