NSUrl CreateApplicationSupportDirectory()
{
NSFileManager fileManager = NSFileManager.DefaultManager;
NSUrl[] URLs = fileManager.GetUrls(NSSearchPathDirectory.ApplicationSupportDirectory, NSSearchPathDomain.User);
NSUrl url = URLs [URLs.Length - 1];
url = url.Append(ApplicationDocumentsDirectoryName, false);
NSError error;
NSDictionary properties = url.GetResourceValues(new NSString[] { NSUrl.IsDirectoryKey }, out error);
if (properties != null)
{
var isDirectoryNumber = (NSNumber)properties [NSUrl.IsDirectoryKey];
if (isDirectoryNumber != null && !isDirectoryNumber.BoolValue)
{
Console.WriteLine("Could not access the application data folder.");
return(null);
}
}
else if (error.Code == (int)NSCocoaError.FileReadNoSuchFile)
{
bool ok = fileManager.CreateDirectory(url.Path, true, null);
if (!ok)
{
Console.WriteLine("Error occured: {0}", error.LocalizedDescription);
return(null);
}
}
return(url);
}
public static bool IsFolder(this NSUrl url)
{
var resources = url.GetResourceValues(new[]
{
NSUrl.IsDirectoryKey, NSUrl.IsPackageKey
}, out var error);
if (error != null)
{
Debug.WriteLine(error);
return(false);
}
var isDir = resources.TryGetValue(NSUrl.IsDirectoryKey, out var isDirObj) && ((NSNumber)isDirObj).BoolValue;
var isPackage = resources.TryGetValue(NSUrl.IsPackageKey, out var isPackageObj) && ((NSNumber)isPackageObj).BoolValue;
return(isDir && !isPackage);
}
public void IsExcludedFromBackupKey()
{
//TestRuntime.AssertSystemVersion (PlatformName.MacOSX, 10, 8, throwIfOtherPlatform: false);
TestRuntime.AssertSystemVersion(PlatformName.MacOSX, 10, 9, throwIfOtherPlatform: false); // 10.8 fails DoNotBackupMe-1
TestRuntime.AssertSystemVersion(PlatformName.MacOSX, 10, 10, throwIfOtherPlatform: false); // 10.10 fails DoNotBackupMe-1
// NOTE: this test was failing with either NullReferenceException or InvalidCastException
// when we used CFBoolean as a NSObject (i.e. CFBoolean.TrueObject). The test order execution
// was important to track this down
NSObject value;
Assert.True(NSBundle.MainBundle.ExecutableUrl.TryGetResource(NSUrl.IsExcludedFromBackupKey, out value), "MainBundle");
Assert.That(value, Is.TypeOf(typeof(NSNumber)), "NSNumber");
Assert.That((int)(value as NSNumber), Is.EqualTo(0), "0");
string filename = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Personal), $"DoNotBackupMe-NSUrl-{Process.GetCurrentProcess ().Id}");
try {
File.WriteAllText(filename, "not worth a bit");
using (NSUrl url = NSUrl.FromFilename(filename)) {
Assert.True(url.TryGetResource(NSUrl.IsExcludedFromBackupKey, out value));
Assert.That((int)(value as NSNumber), Is.EqualTo(0), "DoNotBackupMe-0");
url.SetResource(NSUrl.IsExcludedFromBackupKey, (NSNumber)1);
Assert.True(url.TryGetResource(NSUrl.IsExcludedFromBackupKey, out value));
Assert.That((int)(value as NSNumber), Is.EqualTo(1), "DoNotBackupMe-1");
NSError error;
NSDictionary dict = url.GetResourceValues(new NSString [] { NSUrl.IsExcludedFromBackupKey }, out error);
Assert.Null(error, "error");
Assert.That(dict.Keys [0], Is.EqualTo(NSUrl.IsExcludedFromBackupKey), "Key");
Assert.That((int)(dict.Values [0] as NSNumber), Is.EqualTo(1), "Value");
}
}
finally {
// otherwise the attribute won't reset even if the file is overwritten
File.Delete(filename);
}
}