A. Installation Environment
Open Visual Studio Installer, click Edit, and then check the "use .NET mobile development."
II. Mobile SDK
SDK is placed in a default E:\Program Files (x86)\Android\android-sdk, this folder is best to move to a different disk, so as to create a space simulator, and then set about a new path in vs2019 years.
III. Creating simulator
Click Tools-> Android -> Android Device Manager, create a simulator, the best choice for x86-image, you can use Intel Virtualization accelerate HAXM (need to open Intel VT in Bios).
Then start the emulator
四. Hello world
1. Create a project
If you forget to compile fails, encounter this error, then you need to open the FQ.
2. Run
The Android project is set to start, then run directly F5. (IOS also, but need to connect the MAC)
五. Hot Reload
The UI design preview, XF now supports the Hot Reload, will modify the UI is real-time applications to APP, the very aspects
VI. End
Xamarin development environment to build this end.