XAML Hot Reload can be enabled by checking the Enable Xamarin Hot Reload checkbox at Visual Studio > Preferences > Projects > Xamarin Hot Reload.NET Web Forms, MVC, Core, UWP, Xamarin, JavaScript, Angular, Vue, and React. With this feature enabled changes are instantly reflected in your running app every time you save the file. XAML Hot Reload for Xamarin.Forms is built into Visual Studio for Mac in version 8.3 and later.
![]() Visual Studio Xamarin Download The CodeNET workload for Visual StudioIf you followed along with the first post in this series you should be set up with at least one mobile device emulator, either iOS or Android, and the code for a mobile app.If not, you can download the code from the companion repository on GitHub.This post will introduce you to deploying and running your first app on both Windows and macOS. Xamarin.Mac samples Visual Studio for Mac.Visual Studio 2017/2019 for Windows or Visual Studio for MacMobile development with. NET developers to build native Mac applications using C. PrerequisitesMac exposes the complete macOS SDK for. With these techniques you’ll be able to test and debug a single app on a variety of devices and OS versions without needing a stack of phones.Android is particularly slow, both booting the emulator and building and deploying the app. However, Android doesn’t require much configuration to get you up and running.Right-click on the platform project of your choice in the Solution Explorer panel and click Set as Startup Project.Doing so will allow you to run the app when you click the start ("play") icon in the top left, or press F5.The first time you target Android with a fresh install of Visual Studio, you may find that when running initially, it loads the Android Device Manager with a blank list of devices as shown below.When the New Device window appears, leave all the defaults unchanged and click Create.The first time you run against either iOS or Android emulators the app will take some time to cold start. Visual Studio for Mac comes with the iOS simulators built-in, so when developing on a Mac this is the easiest platform to target for quick functionality testing. Deploying on Visual Studio for MacIf you are running on a Mac, you can target either iOS or Android emulators almost out of the box. It's separate from this blog post tutorial but will give you a full run down of many APIs at once. NET Core application then checkout this free 5-part video series. After a short wait, you should see your first Xamarin app running!Deploying your Xamarin app on Visual Studio for WindowsDeploying to Android on Windows is fairly straightforward but iOS requires some work. Device Atlas provides a list of the most popular iPhone models, based on web traffic.Go ahead and run the app on your platform of choice. The first option is your chosen platform, the second is the deployment configuration, either Debug or Release, and the third is the target device.If you are targeting an iOS simulator, all the different models of iPhone are available already just select the one you'd like to use for testing. This means you need access to a Mac to act as a “Build Agent”.If you already have a Mac device, either a Macbook, Mac, or iMac, then as long as it is on the same network as your development machine you will be able to connect to it from Visual Studio by selecting the Tools > iOS menu and clicking Pair to Mac.If you don’t have a Mac, then you can take advantage of cloud “rental” services such as MacInCloud, which allow you to use a cloud-based Mac for a small fee. However, Xcode is only available on Mac. Apple’s license agreement states that you must use “Xcode Build Tools” to compile iOS applications. You may notice that you cannot deploy your iOS project out of the box. Running your Xamarin app on iOSRight-click on the iOS platform project in the Solution Explorer panel and click Set as Startup Project.First up is iOS, as this is the most complicated. Mac osx snes emulatorLeaving all values as default is fine.The first time you run against either iOS or Android emulators it will take some time to cold start. Click New in the top-right to create a new device. If you're running on an Android emulator for the first time you'll see the Android Device Manager window appear with no devices. If you own a touch screen laptop you can interact with the app like a real phone—which is one step better than simulators on the Macs themselves! Running your Xamarin app on an Android emulatorNow for Android, which is much simpler. Click Yes.Once the phone is connected and you are targeting Android as your startup project your physical device will appear as an option in the dropdown box where you select your device of choice.For further details on deploying to Android devices, including troubleshooting, see the Microsoft Docs Page on setting up your device for development. If you're connecting the phone for the first time a message box should appear on the phone asking if you want to trust the computer attached. This may be a simple “On” toggle at the top of the page, or it will be specified in the list.When you've enabled USB debugging, connect your Android device to your computer with a USB cable. If you tap this a minimum of 7 times it will unlock a new entry in the settings menu called “Developer options”.There are many options, but the essential thing is to ensure that “Allow USB Debugging” is enabled. This is due to the work going on underneath that Android requires for an app so if it takes some time, don’t be worried that something is wrong.To read more about getting started with deployment on Windows for iOS, read the Microsoft Docs page on Xamarin.iOS and Windows.Go ahead and run the app on your platform of choice and soon you should see your first app, boom!So you have an Android phone and you want to deploy your app to it? Look no further!Deploying to Android is fairly straightforward, once you know how to configure your phone for development.Android has a snazzy, hidden Developer Options menu which allows USB Debugging, which is the feature that allows us to install apps we have made for it, or "side load", as it is also known.The steps for accessing USB Debugging on your device will vary slightly depending on the version of Android, but in the Settings menu on your Android device, possibly under a sub-menu such as About Device or System, there should be a Build Number entry. The window that opens will show any devices connected via a cable. The first time you set it up you will need a cable, but once it is done you won’t have to do it again.If you open Xcode on the Mac with your device connected, select Windows > Devices and Simulators. It will appear as an option in the devices list that you can select.On Windows, the same applies if you have already followed the earlier steps and paired your remote Mac with Visual Studio.However, if you own an iPhone or iPad, and the Mac you are using for building is accessible, it is possible to deploy over WiFi rather than using a cable. ![]() When not writing apps for fun she can be found speaking around the UK or Europe on her two favourite Microsoft technologies, Xamarin and Cognitive Services.
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