我正在使用UI
ImagePickerController来允许用户拍照.我想允许他后来编辑,但无论我做什么,我什么也没有.这是我的代码(我使用Xamarin)：
UIImagePickerController imagePicker = new UIImagePickerController ();
// set our source to the camera
imagePicker.sourceType = UIImagePickerControllerSourceType.Camera;
// set what media types
//imagePicker.MediaTypes = UIImagePickerController.AvailableMediaTypes (UIImagePickerControllerSourceType.Camera);
// show the camera controls
imagePicker.ModalPresentationStyle = UIModalPresentationStyle.CurrentContext;
imagePicker.ShowsCameraControls = true;
imagePicker.AllowsEditing = true;
imagePicker.SetEditing (true,true);
imagePicker.PreferredContentSize = new Sizef(900,600);
imagePicker.CameraCaptureMode = UIImagePickerControllerCameraCaptureMode.Photo;
imagePicker.Title="taste.eat. image";
// attach the delegate
imagePicker.Delegate = new ImagePickerDelegate();
// show the picker
NavigationController.PresentViewController(imagePicker,true,null);
我错过了什么吗？
编辑：
我已经遵循教程,我正在使用矩形屏幕,但是如果我平移或缩放,只要抬起手指就可以回到中央.是否可以从照片应用程序到这个屏幕？
解决方法
当使用UIImagePickerController的delegate -imagePickerController：didFinishPickingMediawithInfo：时,我们使用
UIImage *image = [info objectForKey:UIImagePickerControllerOriginalImage];
该代码将始终返回原始图像,即使编辑为ON.
尝试使用
UIImage *image = [info objectForKey:UIImagePickerControllerEditedImage];
如果编辑为ON,则返回编辑后的图像.
希望这可以帮助.