/// <summary>
/// Checks whether the app was launched from the share extension. If it is, the CropViewController is launched without user input.
/// </summary>
private void CheckLaunchFromShareExtension()
{
if (((AppDelegate)UIApplication.SharedApplication.Delegate).LaunchedFromShareExtension)
{
// reset to false to prevent this from executing when the user returns to home page
((AppDelegate)UIApplication.SharedApplication.Delegate).LaunchedFromShareExtension = false;
NSUserDefaults sharedDefaults = new NSUserDefaults(Constants.AppGroupIdentifier, NSUserDefaultsType.SuiteName);
NSData imageData = sharedDefaults.DataForKey(Constants.ShareExtensionImageKey);
sharedDefaults.SetValueForKey(new NSData(), new NSString(Constants.ShareExtensionImageKey));
try
{
UIImage image = new UIImage(imageData);
//NOTE EXIF data is not retrieved
NSUrl url = null;
LaunchCropViewController(image, url, this.NavigationController);
}
catch (Exception e)
{
// If data was not able to be retrieved
var alert = UIAlertController.Create("Error Launching from Share Extension",
"An unexpected error occured.",
UIAlertControllerStyle.Alert);
alert.AddAction(UIAlertAction.Create("OK", UIAlertActionStyle.Default, null));
PresentViewController(alert, true, null);
}
}
}
/// <summary>
/// Retrieves image(s) from share extension and launches the analysis page.
/// </summary>
private void LaunchFromShareExtension()
{
if (!AppDelegate.LaunchedFromShareExtension)
{
return;
}
AppDelegate.LaunchedFromShareExtension = false;
var sharedDefaults = new NSUserDefaults(SharedConstants.AppGroupID, NSUserDefaultsType.SuiteName);
var imageData = sharedDefaults.DataForKey(SharedConstants.ImageKey);
sharedDefaults[SharedConstants.ImageKey] = new NSData();
sharedDefaults.Dispose();
try
{
var image = UIImage.LoadFromData(imageData);
var imageName = string.Empty;
ImageEntries.Add(new ImageEntry(image.ToSKImage(), imageName, DateTime.UtcNow, null));
LaunchAnalysisScreen(ImageEntries);
}
catch (ArgumentNullException)
{
var alert = UIAlertController.Create(SharedConstants.ShareExtensionErrorAlertTitle,
SharedConstants.ShareExtensionErrorAlertMessage,
UIAlertControllerStyle.Alert);
alert.AddAction(UIAlertAction.Create(SharedConstants.ShareExtensionErrorAlertOkAction,
UIAlertActionStyle.Default, null));
PresentViewController(alert, true, null);
}
}
// Loads the data from `NSUserDefaults`.
void LoadData()
{
UserDefaultsAccessQueue.DispatchSync(() =>
{
NSData archivedData = UserDefaults.DataForKey(StorageDescriptor.Key);
try
{
// Let the derived classes handle the specifics of
// putting the unarchived data in the correct format.
// This is necessary because the derived classes
// (SoupMenuManager, SoupOrderMenuManager) are using
// generic data formats (NSMutableSet<T> or NSMutableArray<T>)
// and these types cannot be casted directly from the
// deserialized data.
NSObject unarchivedData = NSKeyedUnarchiver.UnarchiveObject(archivedData);
FinishUnarchiving(unarchivedData);
}
catch (Exception e)
{
if (!(e is null))
{
Console.WriteLine($"Error: {e.Message}");
}
}
});
}
void SetElementValueFromDefaults(CheckboxElement e, NSUserDefaults defs, string key, bool defaultVal)
{
var value = defs.DataForKey (key);
if (value == null)
e.Value = defaultVal;
else
e.Value = defs.BoolForKey(key);
}