UIImagePickerController is showing last clicked image. I am using Monotouch/Xamarin Studio - ios

Question

In my project, when I launch camera first time it works fine. when I launch camera second time, I see image last clicked in view finder. I am not sure what's causing this.
Can anyone please help me here?
following is code block to launch camera:
UIImagePickerController imagePicker = new UIImagePickerController();
// Handle media selected.
var documentsDirectory = Environment.GetFolderPath (Environment.SpecialFolder.MyDocuments);
imagePicker.FinishedPickingMedia += (sender, e) => {
UIImage image = (UIImage)e.Info.ObjectForKey(
new NSString("UIImagePickerControllerOriginalImage"));
if (image != null)
{
this.InvokeOnMainThread(() => {
this.clickedImage.Image = image;
image.SaveToPhotosAlbum(delegate(UIImage img, NSError err){
});
string pngFilename = System.IO.Path.Combine (documentsDirectory, "Photo.png"); // hardcoded filename, overwrites each time
NSData imgData = image.AsPNG();
NSError SaveErr = null;
if (imgData.Save(pngFilename, false, out SaveErr))
{
Console.WriteLine("saved as " + pngFilename);
} else {
Console.WriteLine("NOT saved as" + pngFilename + " because" + SaveErr.LocalizedDescription);
}
});
}
DismissViewController(true,null);
};
// Handle cancellation of picker.
imagePicker.Canceled += (sender, e) => {
DismissViewController(true,null);
};
btnCameraDisplay1.SetTitle("Take Picture", UIControlState.Normal);
btnCameraDisplay1.Font = UIFont.SystemFontOfSize(19);
btnCameraDisplay1.SetTitleColor(UIColor.Black, UIControlState.Normal);
btnCameraDisplay1.TouchUpInside += delegate(object sender, EventArgs e)
{
if(UIImagePickerController.IsSourceTypeAvailable(UIImagePickerControllerSourceType.Camera))
{
imagePicker.SourceType = UIImagePickerControllerSourceType.Camera;
imagePicker.AllowsEditing = false;
this.PresentViewController(imagePicker, true,null);
}
else{
alertView = new UIAlertView();
alertView.AddButton("OK");
alertView.Message = "No camera available in this device.";
alertView.AlertViewStyle = UIAlertViewStyle.Default;
alertView.Show();
}
};

Answer 1

I ran into the same Problem. Some searching here on Stackoverflow helped:
It might be a problem with Xamarins implementation of the FinishedPickingMedia Event. (from here https://stackoverflow.com/a/20503817/383658)
Solution:
Switch from the Event System to Delegates as explained here:
https://stackoverflow.com/a/20035698/383658
So basically move your code from:
imagePicker.FinishedPickingMedia += (sender, e) => {}
to your new UIImagePickerControllerDelegate delegates method:
public override void FinishedPickingMedia (UIImagePickerController picker, NSDictionary info)
{}