private static string GetEnvironmentVariable(string variable)
{
string value = null;
if (Utilities.OperatingSystem.IsWindows())
{
value = Environment.GetEnvironmentVariable(variable) ??
Environment.GetEnvironmentVariable(variable, EnvironmentVariableTarget.Machine);
}
else if (Utilities.OperatingSystem.IsMacOS())
{
try
{
CommandResult result = Bash.RunInMacOsShell($"echo ${variable}", Environment.CurrentDirectory);
value = result.StandardOutput.Split(new[] { Environment.NewLine }, 2, StringSplitOptions.RemoveEmptyEntries).FirstOrDefault();
}
catch (Exception)
{
// ignored
}
}
return(value);
}
public static bool TryLocate(out string sdkPath)
{
string path;
// Check #1 - ANDROID_SDK_ROOT or ANDROID_HOME environment variables
path = GetEnvironmentVariable("ANDROID_SDK_ROOT");
if (!string.IsNullOrEmpty(path))
{
sdkPath = path;
return(true);
}
path = GetEnvironmentVariable("ANDROID_HOME");
if (!string.IsNullOrEmpty(path))
{
sdkPath = path;
return(true);
}
// Check #2 - Default Xamarin Android SDK location
if (OperatingSystem.IsWindows())
{
// https://docs.microsoft.com/en-us/xamarin/android/troubleshooting/questions/android-sdk-location?tabs=windows
path = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ProgramFilesX86), "Android", "android-sdk");
}
else
{
// https://docs.microsoft.com/en-us/xamarin/android/troubleshooting/questions/android-sdk-location?tabs=macos
path = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Personal), "Library", "Developer", "Xamarin", "android-sdk-macosx");
}
if (Directory.Exists(path))
{
sdkPath = path;
return(true);
}
// Check #3 - Android Studio configuration
// Try looking for Android SDK location inside Android Studio settings
// https://developer.android.com/studio/intro/studio-config
// Android Studio 4.1: The locations of user configuration directories have been changed
// https://developer.android.com/studio/releases#directory-configuration-changes
try
{
if (OperatingSystem.IsWindows())
{
// Example: C:\Users\YourUserName\AppData\Roaming\Google\AndroidStudio4.1
foreach (string dir in Directory.EnumerateDirectories(
Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), "Google"),
"AndroidStudio*", SearchOption.TopDirectoryOnly))
{
string jdkTableFile = Path.Combine(dir, "options", "jdk.table.xml");
if (ParseAndValidateJdkTable(jdkTableFile, out path))
{
sdkPath = path;
return(true);
}
}
// Example: C:\Users\YourUserName\.AndroidStudio4.0
foreach (string dir in Directory.EnumerateDirectories(
Environment.GetFolderPath(Environment.SpecialFolder.UserProfile), ".AndroidStudio*",
SearchOption.TopDirectoryOnly))
{
string jdkTableFile = Path.Combine(dir, "config", "options", "jdk.table.xml");
if (ParseAndValidateJdkTable(jdkTableFile, out path))
{
sdkPath = path;
return(true);
}
}
}
else if (OperatingSystem.IsMacOS())
{
// Example: ~/Library/Application Support/Google/AndroidStudio4.1
foreach (string dir in Directory.EnumerateDirectories(
Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Personal), "Library",
"Application Support", "Google"), "AndroidStudio*", SearchOption.TopDirectoryOnly))
{
string jdkTableFile = Path.Combine(dir, "options", "jdk.table.xml");
if (ParseAndValidateJdkTable(jdkTableFile, out path))
{
sdkPath = path;
return(true);
}
}
// Example: ~/Library/Preferences/AndroidStudio4.0
foreach (string dir in Directory.EnumerateDirectories(
Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Personal), "Library",
"Preferences"), "AndroidStudio*", SearchOption.TopDirectoryOnly))
{
string jdkTableFile = Path.Combine(dir, "options", "jdk.table.xml");
if (ParseAndValidateJdkTable(jdkTableFile, out path))
{
sdkPath = path;
return(true);
}
}
}
}
catch
{
// ignored
}
// Check #4 - Try run ADB command
try
{
//NOTE: This command can fail also on machines where Android SDK and Xamarin.Android are correctly installed
// (You're not required to add Android SDK platform-tools folder - where adb resides - to PATH environment variable)
if (Bash.TryLocateFile("adb", out string adbFullPath))
{
sdkPath = Path.GetDirectoryName(Path.GetDirectoryName(adbFullPath));
return(true);
}
}
catch (Exception)
{
// ignored
}
sdkPath = default;
return(false);
}
