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Jenkins Build Artifacts

The Project xamarin-android Jenkins page has a link to the Latest Azure Artifacts, which contains an oss-xamarin.android*.zip and Xamarin.Android.Sdk*.vsix file for every Jenkins build on macOS. These files can be downloaded and used, without requiring a local xamarin-android repo build.

The Jenkins build artifacts do not include Android SDK or NDK bits, while requiring that parts of the Android SDK be installed to work. Please see the Android SDK Setup section for instructions on setting up the Android NDK & SDK if an Android SDK is not already setup.

Installing Jenkins Build Artifacts

macOS and Windows users should go to the Latest xamarin-android Azure Artifacts page and download the oss-xamarin.android*.zip file, e.g. oss-xamarin.android_v7.4.99.60_Darwin-x86_64_master_4f3d604.zip.

Windows users using Visual Studio 2017 may instead download the Xamarin.Android.Sdk*.vsix file.

macOS users may just extract this into their Downloads folder using Archive Utility.app or unzip from Terminal.app. This will result in a file such as:

$HOME/Downloads/oss-xamarin.android_v7.4.99.60_Darwin-x86_64_master_4f3d604/bin/Debug/bin/xabuild

Linux/x86_64 users can go to the Latest xamarin-android-linux Azure Artifacts page and download the oss-xamarin.android*.zip file, e.g. xamarin-android/oss-xamarin.android_v7.2.99.19_Linux-x86_64_master_3b893cd.zip.

Windows Installation

There are two ways to install a Jenkins build of Xamarin.Android on Windows:

  1. Through the Xamarin.Android.Sdk-OSS*.vsix file.
  2. Through the oss-xamarin.android*.zip file.

Xamarin.Android.Sdk-OSS*.vsix Installation

The Xamarin.Android.Sdk-OSS*.vsix file can be installed into Visual Studio 2017. This requires that the Xamarin component be previously installed within Visual Studio 2017.

Installing the Xamarin.Android.Sdk-OSS*.vsix file is easy: double-click the file within Windows Explorer, and complete the VSIX Installer window.

The problem is uninstalling the Xamarin.Android.Sdk-OSS.vsix file, in order to use the stable/commercial version of Xamarin.Android, if desired. The Jenkins-provided .vsix file is Experimental, which complicates the uninstallation process.

When using Visual Studio 15.3 or later, search for Xamarin.Android within the Visual Studio Extension Manager, and then click the Revert button to uninstall the Xamarn.Android.Sdk-OSS package and revert to the previously installed and stable commercial Xamarin.Android version.

VS Extensions Window

Visual Studio 15.2 and earlier do not have a Revert button. The only way to return to a stable Xamarin.Android version is to uninstall and reinstall the Xamarin component from within the Visual Studio 2017 Installer.

For simplicity, we suggest installing multiple Visual Studio 2017 products, e.g. both Visual Studio Community and Visual Studio Professional, and designating one of them for "stable" use and one for Jenkins use.

Once the Xamarin.Android.Sdk-OSS*.vsix file has been downloaded, you can double-click the file, and within the VSIX Installer window you can select which products the Xamarin.Android SDK should be installed into:

VSIX Installer Window

Once you've selected the desired Visual Studio products, click the Install button to install the Xamarin.Android SDK extension into Visual Studio 2017.

oss-xamarin.android*.zip Installation

Windows users can right-click the oss-xamarin.android*.zip file within Windows Explorer and click Extract All..., and in the Extract Compressed (Zipped) Folders dialog enter a short path such as C:\xa-sdk. This is necessary because some of the contained filenames are quite long. This will result in a path such as:

C:\xa-sdk\oss-xamarin.android_v7.4.99.60_Darwin-x86_64_master_4f3d604\bin\Debug\bin\setup-windows.exe

Once the .zip file has been extracted, please run the setup-windows.exe utility within the bin\Debug or bin\Release folders. If you have Visual Studio 2017 installed, this utility must be run within an Administrator-elevated Developer Command Prompt for VS 2017 window:

  1. In the Start menu, search for Developer Command Prompt for VS 2017.
  2. Right-click the Developer Command Prompt for VS 2017 entry.
  3. Click Run as administrator.

Within the elevated command prompt, execute the setup-windows.exe program:

> C:\xa-sdk\oss-xamarin.android_v7.4.99.60_Darwin-x86_64_master_4f3d604\bin\Debug\bin\setup-windows.exe
Executing: MKLINK /D "C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\Common7\IDE\ReferenceAssemblies\Microsoft\Framework\MonoAndroid" "C:\xa-sdk\oss-xamarin.android_v7.4.99.57_Darwin-x86_64_master_97f08f7\bin\Debug\lib\xamarin.android\xbuild-frameworks\MonoAndroid"
Executing: MKLINK /D "C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid" "C:\xa-sdk\oss-xamarin.android_v7.4.99.57_Darwin-x86_64_master_97f08f7\bin\Debug\lib\xamarin.android\xbuild-frameworks\MonoAndroid"
Executing: MKLINK /D "C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\MSBuild\Xamarin\Android" "C:\xa-sdk\oss-xamarin.android_v7.4.99.57_Darwin-x86_64_master_97f08f7\bin\Debug\lib\xamarin.android\xbuild\Xamarin\Android"
Executing: MKLINK "C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\MSBuild\Xamarin\Xamarin.Android.Sdk.props" "C:\xa-sdk\oss-xamarin.android_v7.4.99.57_Darwin-x86_64_master_97f08f7\bin\Debug\lib\xamarin.android\xbuild\Xamarin\Xamarin.Android.Sdk.props"
Executing: MKLINK "C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\MSBuild\Xamarin\Xamarin.Android.Sdk.targets" "C:\xa-sdk\oss-xamarin.android_v7.4.99.57_Darwin-x86_64_master_97f08f7\bin\Debug\lib\xamarin.android\xbuild\Xamarin\Xamarin.Android.Sdk.targets"
Success!

To uninstall, run setup-windows.exe /uninstall:

> C:\xa-sdk\oss-xamarin.android_v7.4.99.60_Darwin-x86_64_master_4f3d604\bin\Debug\bin\setup-windows.exe /uninstall

The setup-windows.exe utility checks for an existing Xamarin.Android install, renames the existing directories for backup/easy restoration purposes, then create symbolic links into the extracted Xamarin.Android directory.

(Unfortunately, this means that you can't easily have side-by-side installs of the Xamarin.Android SDK. Only one install can be active at a time.)

If Visual Studio 2017 isn't installed, it should be fine to right-click setup-windows.exe from within Windows Explorer, then click Run as administrator. (setup-windows.exe will not do the correct thing when Visual Studio 2017 is installed, as %VSINSTALLDIR% isn't properly set outside of the Developer Command Prompt for VS 2017, so the global %ProgramFiles(x86)%\MSBuild\Xamarin\Android directory is modified, not the per-SKU Visual Studio 2017 directory.)

Using Jenkins Build Artifacts

Command-line use: Linux and macOS

Within the oss-xamarin.android*.zip extracted contents is a oss-xamarin.android*/bin/Debug/bin/xabuild script.

xabuild requires that the $ANDROID_SDK_PATH and $ANDROID_NDK_PATH environment variables be set to the location of the Android SDK and Android NDK directories, respectively.

If you have a xamarin-android build environment, then $HOME/android-toolchain will contain an Android SDK and NDK:

export ANDROID_SDK_PATH=$HOME/android-toolchain/sdk
export ANDROID_NDK_PATH=$HOME/android-toolchain/ndk

If you followed the Android SDK Setup instructions, then:

export ANDROID_SDK_PATH=$HOME/xa-sdk/android-sdk
export ANDROID_NDK_PATH=$HOME/xa-sdk/android-ndk/android-ndk-r14

Once the oss-xamarin.android*.zip file has been installed, Unix users may use the oss-xamarin.android*/bin/Debug/bin/xabuild script to build projects.

# macOS users: build the xamarin-android HelloWorld.csproj sample
$HOME/Downloads/oss-xamarin.android_v7.2.99.19_Darwin-x86_64_master_3b893cd/bin/Debug/bin/xabuild \
	/t:SignAndroidPackage \
	samples/HelloWorld/HelloWorld.csproj

Command-line use: Windows

There is not currently an xabuild.cmd script for Windows use. Instead, Windows users should execute msbuild.exe directly, providing the following MSBuild properties:

  • AndroidSdkDirectory: The location of the Android SDK.
  • AndroidNdkDirectory: The location of the Android NDK.
  • JavaSdkDirectory: The location of the Java SDK/JDK.

For example (using the paths from Android SDK Setup):

msbuild /p:AndroidSdkDirectory="C:\xa-sdk\android-sdk" ^
	/p:AndroidNdkDirectory="C:\xa-sdk\android-ndk\android-ndk-r14" ^
	/t:SignAndroidPackage ^
	samples\HelloWorld\HelloWorld.csproj

Android SDK Setup

Please see the Android Studio page to download the Android SDK, if you do not already have the Android SDK installed. If you don't want Android Studio, you can follow the Get just the command line tools section at the Android Studio page.

The Android NDK can be downloaded from the NDK Downloads page.

macOS Android SDK Setup

Download the macOS SDK tools package, e.g. tools_r25.2.3-macosx.zip, and the macOS NDK package, e.g. android-ndk-r14-darwin-x86_64.zip

Within Terminal.app, run the following commands, assuming that the above mentioned files were downloaded into $HOME/Downloads, and we want to create a new Android SDK & NDK within $HOME/xa-sdk:

mkdir -p $HOME/xa-sdk/android-sdk
cd $HOME/xa-sdk/android-sdk
unzip $HOME/Downloads/tools_r25.2.3-macosx.zip
tools/bin/sdkmanager "build-tools;25.0.2"
tools/bin/sdkmanager "platform-tools"
tools/bin/sdkmanager "platforms;android-25"

mkdir -p $HOME/xa-sdk/android-ndk
cd $HOME/xa-sdk/android-ndk
unzip $HOME/Downloads/android-ndk-r14-darwin-x86_64.zip

Windows Android SDK Setup

  1. Download the Windows SDK tools package, e.g. tools_r25.2.3-windows.zip, and the Windows NDK package, e.g. android-ndk-r14-windows-x86.zip

  1. Right-click the tools*.zip file within Explorer, then click Extract All...

  2. Within the Extract Compressed (Zipped) Folders dialog, enter a path such as C:\xa-sdk\android-sdk. Click Next.

  3. Right-click the android-ndk*.zip file within Explorer, then click Extract All...

  4. Within the Extract Compressed (Zipped) Folders dialog, enter a path such as C:\xa-sdk\android-ndk. Click Next.

  5. Within cmd.exe, execute the following commands:

     cd C:\xa-sdk\android-sdk
 tools\bin\sdkmanager "build-tools;25.0.2"
 tools\bin\sdkmanager "platform-tools"
 tools\bin\sdkmanager "platforms;android-25"