protected override void OnElementChanged(ElementChangedEventArgs <ExtendedDatePicker> e)
{
base.OnElementChanged(e);
NoCaretField entry = new NoCaretField {
BorderStyle = UITextBorderStyle.RoundedRect
};
entry.Started += new EventHandler(this.OnStarted);
entry.Ended += new EventHandler(this.OnEnded);
this.picker = new UIDatePicker {
Mode = UIDatePickerMode.Date,
TimeZone = new NSTimeZone("UTC")
};
float width = UIScreen.MainScreen.Bounds.Width;
UIToolbar uIToolbar = new UIToolbar(new RectangleF(0, 0, width, 44))
{
BarStyle = UIBarStyle.Default,
Translucent = true
};
UIBarButtonItem uIBarButtonItem = new UIBarButtonItem(UIBarButtonSystemItem.FlexibleSpace);
UIBarButtonItem uIBarButtonItem2 = new UIBarButtonItem(UIBarButtonSystemItem.Done, delegate(object o, EventArgs a) {
entry.ResignFirstResponder();
});
uIToolbar.SetItems(new UIBarButtonItem[] {
uIBarButtonItem,
uIBarButtonItem2
}, false);
if (Device.Idiom == TargetIdiom.Phone)
{
entry.InputView = this.picker;
entry.InputAccessoryView = uIToolbar;
}
else
{
entry.InputView = new UIView(RectangleF.Empty);
entry.InputAccessoryView = new UIView(RectangleF.Empty);
}
base.SetNativeControl(entry);
this.UpdateDateFromModel(false);
this.UpdateMaximumDate();
this.UpdateMinimumDate();
this.picker.ValueChanged += new EventHandler(this.HandleValueChanged);
var view = (ExtendedDatePicker)Element;
SetBorder(view);
}
//protected void HandleImageDownload()
//{
// UIImage img = new UIImage();
// //var webClient = new WebClient();
// //webClient.DownloadDataCompleted += (s, e) =>
// //{
// // var bytes = e.Result; // get the downloaded data
// // string documentsPath = Path.GetTempPath(); //Environment.GetFolderPath(Environment.SpecialFolder.Personal);
// // string localFilename = MREditName;
// // string localPath = Path.Combine(documentsPath, localFilename);
// // File.WriteAllBytes(localPath, bytes); // writes to local storage
// // InvokeOnMainThread(() =>
// // {
// // if (!string.IsNullOrEmpty(localPath))
// // {
// // var imgView = new UIImageView(contentView.Bounds);
// // imgView.Image = UIImage.FromFile(localPath);
// // imgView.ContentMode = UIViewContentMode.ScaleAspectFit; // or ScaleAspectFill
// // contentView.BackgroundColor = UIColor.FromPatternImage(img);
// // }
// // });
// //};
// //var url = new Uri(MREditPath); // Html home page
// //webClient.DownloadStringAsync(url);
// string fileIdentifier = "value to remember";
// string documentsPath = Path.GetTempPath();
// string localFilename = MREditName;
// string localFilePath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments), localFilename);
// WebClient webClient = new WebClient();
// webClient.DownloadFileCompleted += new AsyncCompletedEventHandler(DownloadFileCompleted);
// webClient.QueryString.Add("file", fileIdentifier); // here you can add values
// //webClient.DownloadFileAsync(new Uri((string)MREditPath), localFilePath);
// webClient.DownloadFile(new Uri((string)MREditPath), MREditName);
//}
//private void DownloadFileCompleted(object sender, AsyncCompletedEventArgs e)
//{
// string fileIdentifier = ((System.Net.WebClient)(sender)).QueryString["file"];
// // process with fileIdentifier
// UIImage img = new UIImage();
// string localFilePath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments), MREditName);
// img = UIImage.FromFile(localFilePath);
// var imgView = new UIImageView(contentView.Bounds);
// imgView.Image = img;
// imgView.ContentMode = UIViewContentMode.ScaleAspectFit; // or ScaleAspectFill
// contentView.BackgroundColor = UIColor.FromPatternImage(img);
//}
public override void LoadView()
{
base.LoadView();
// White view covering entire screen
contentView = new UIView();
//{
// BackgroundColor = UIColor.White
//};
if (!MREditing)
{
contentView.BackgroundColor = UIColor.White;
filename = "Doctor-Notes" + "_" + doctorId + "-" + patientId + "_" + DateTime.Now.ToString("s").Replace(":", "_") + ".jpg";
}
//var img = UIImage.FromFile("dynapadscreenshot.png");
//var imgView = new UIImageView(contentView.Bounds);
//imgView.Image = img;
//imgView.ContentMode = UIViewContentMode.ScaleAspectFit; // or ScaleAspectFill
////contentView.AddSubview(imgView);
////contentView.SendSubviewToBack(imgView);
//contentView.BackgroundColor = UIColor.FromPatternImage(img);
if (MREditing)
{
filename = MREditName + "_" + "edit" + "_" + DateTime.Now.ToString("s").Replace(":", "_") + ".jpg";
//var img = UIImage.FromFile("dynapadscreenshot.png");
UIImage img = new UIImage();
//switch (MREditType)
//{
// case "jpg":
// case "gif":
// case "png":
// img = FromUrl(MREditPath);
// break;
// case "pdf":
// case "doc":
// case "docx":
// var dps = new DynaPadService.DynaPadService();
// //img = dps.ConvertToJPG(CommonFunctions.GetUserConfig(), MREditPath);
// break;
// default:
// img = FromUrl(MREditPath);
// break;
//}
try
{
loadingOverlay = new LoadingOverlay(contentView.Bounds);
contentView.Add(loadingOverlay);
////string localPath = "";
var webClient = new WebClient();
//webClient.DownloadDataCompleted += (s, e) =>
//{
// var bytes = e.Result; // get the downloaded data
// string documentsPath = Environment.GetFolderPath(Environment.SpecialFolder.Personal); //Path.GetTempPath(); //Environment.GetFolderPath(Environment.SpecialFolder.Personal);
// string localFilename = MREditName;
// string localPath = Path.Combine(documentsPath, localFilename);
// File.WriteAllBytes(localPath, bytes); // writes to local storage
// InvokeOnMainThread(() =>
// {
// if (!string.IsNullOrEmpty(localPath))
// {
// var imgView = new UIImageView(contentView.Bounds);
// imgView.Image = UIImage.FromFile(localPath);
// imgView.ContentMode = UIViewContentMode.ScaleAspectFit; // or ScaleAspectFill
// contentView.BackgroundColor = UIColor.FromPatternImage(img);
// }
// });
//};
var url = new Uri(MREditPath);
// Html home page
////webClient.DownloadStringAsync(url);
////webClient.DownloadFileAsync(url, MREditName);
//webClient.DownloadFile(url, Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Personal), MREditName));
////HandleImageDownload();
//img = UIImage.FromFile(Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Personal), MREditName));
//var imgView2 = new UIImageView(contentView.Bounds);
//imgView2.Image = UIImage.FromFile(Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Personal), MREditName));
//imgView2.ContentMode = UIViewContentMode.ScaleAspectFit; // or ScaleAspectFill
//contentView.BackgroundColor = UIColor.White;
//contentView.BackgroundColor = UIColor.FromPatternImage(img);
var downloadPath = Path.Combine(Path.GetTempPath(), MREditName);
var bw = new BackgroundWorker();
// this allows our worker to report progress during work
bw.WorkerReportsProgress = true;
// what to do in the background thread
bw.DoWork += delegate(object o, DoWorkEventArgs argss)
{
var b = o as BackgroundWorker;
webClient.DownloadFile(url, downloadPath);
};
// what to do when worker completes its task (notify the user)
bw.RunWorkerCompleted += delegate
{
var imgPath = Path.Combine(Path.GetTempPath(), MREditName);
//NSData imageData = NSData.FromArray(UIImage.FromFile(downloadPath).AsJPEG(1).ToArray());
//img = UIImage.FromFile(downloadPath);
//img = UIImage.LoadFromData(imageData);
img = UIImage.LoadFromData(UIImage.FromFile(downloadPath).AsJPEG(0), 0);
var imgView = new UIImageView(contentView.Bounds);
imgView.Image = UIImage.LoadFromData(UIImage.FromFile(downloadPath).AsJPEG());
imgView.ContentMode = UIViewContentMode.Center; // or ScaleAspectFill
//contentView.BackgroundColor = UIColor.White;
contentView.BackgroundColor = UIColor.FromPatternImage(img);
};
bw.RunWorkerAsync();
////img = UIImage.FromFile("dynapadscreenshot.png");
////img = UIImage.FromFile("telerikautocomplete.png");
////img = UIImage.FromFile("dynapad_danestreet_screenshot.jpg");
////img = UIImage.FromFile("Dane Street_COLOR.png");
////img = UIImage.FromFile("John_Doe_True_sig_2017-05-09T10_59_08.gif");
////img = UIImage.FromFile(Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Personal), MREditName));
////var imgarray = UIImage.FromFile("John_Doe_True_sig_2017-05-09T10_59_08.gif").AsPNG();
////var imgarray = UIImage.FromFile(Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Personal), MREditName)).AsPNG();
////img = UIImage.LoadFromData(imgarray);
//var imgView = new UIImageView(contentView.Bounds);
//imgView.Image = img;
//imgView.ContentMode = UIViewContentMode.ScaleAspectFit; // or ScaleAspectFill
//contentView.BackgroundColor = UIColor.FromPatternImage(img);
}
catch (Exception ex)
{
DismissViewController(true, null);
CommonFunctions.sendErrorEmail(ex);
PresentViewController(CommonFunctions.ExceptionAlertPrompt(), true, null);
}
finally
{
loadingOverlay.Hide();
}
}
View = contentView;
// Vertical UIStackView offset from status bar
CGRect rect = UIScreen.MainScreen.Bounds;
rect.Y += 20;
rect.Height -= 20;
UIStackView vertStackView = new UIStackView(rect)
{
Axis = UILayoutConstraintAxis.Vertical,
};
contentView.Add(vertStackView);
// Horizontal UIStackView for tools
UIStackView horzStackView = new UIStackView
{
Axis = UILayoutConstraintAxis.Horizontal,
Alignment = UIStackViewAlignment.Center,
Distribution = UIStackViewDistribution.EqualSpacing
};
vertStackView.AddArrangedSubview(horzStackView);
// FingerPaintCanvasView for drawing
FingerPaintCanvasView canvasView = new FingerPaintCanvasView();
vertStackView.AddArrangedSubview(canvasView);
// Add space at left to horizontal UIStackView
horzStackView.AddArrangedSubview(new UILabel(new CGRect(0, 0, 10, 10)));
// Construct UIPickerView for choosing color, but don't add it to any view
PickerDataModel <UIColor> colorModel = new PickerDataModel <UIColor>
{
Items =
{
new NamedValue <UIColor>("Red", UIColor.Red),
new NamedValue <UIColor>("Green", UIColor.Green),
new NamedValue <UIColor>("Blue", UIColor.Blue),
//new NamedValue<UIColor>("Cyan", UIColor.Cyan),
//new NamedValue<UIColor>("Magenta", UIColor.Magenta),
new NamedValue <UIColor>("Yellow", UIColor.Yellow),
new NamedValue <UIColor>("Black", UIColor.Black),
//new NamedValue<UIColor>("Gray", UIColor.Gray),
new NamedValue <UIColor>("White", UIColor.White),
new NamedValue <UIColor>("Highlight", UIColor.FromRGBA(255, 0, 255, 0.2f)),
new NamedValue <UIColor>("Clear", new UIColor(0, 0))
}
};
UIPickerView colorPicker = new UIPickerView
{
Model = colorModel
};
// Ditto for UIPickerView for stroke thickness
PickerDataModel <float> thicknessModel = new PickerDataModel <float>
{
Items =
{
new NamedValue <float>("Pen", 1),
new NamedValue <float>("Thin", 2),
new NamedValue <float>("Thinish", 5),
new NamedValue <float>("Medium", 10),
new NamedValue <float>("Thickish", 20),
new NamedValue <float>("Thick", 50)
}
};
UIPickerView thicknessPicker = new UIPickerView
{
Model = thicknessModel
};
// Create UIToolbar for dismissing picker when it's displayed
var toolbar = new UIToolbar(new CGRect(0, 0, UIScreen.MainScreen.Bounds.Width, 44))
{
BarStyle = UIBarStyle.Default,
Translucent = true
};
// Set Font to be used in tools
UIFont font = UIFont.SystemFontOfSize(24);
// Create a NoCaretField text field for invoking color picker & add to horizontal UIStackView
// (technique from Xamarin.Forms iOS PickerRenderer
UITextField colorTextField = new NoCaretField
{
Text = "Red",
InputView = colorPicker,
InputAccessoryView = toolbar,
Font = font
};
horzStackView.AddArrangedSubview(colorTextField);
// Use ValueChanged handler to change the color
colorModel.ValueChanged += (sender, args) =>
{
colorTextField.Text = colorModel.SelectedItem.Name;
canvasView.StrokeColor = colorModel.SelectedItem.Value.CGColor;
};
// Ditto for the thickness
UITextField thicknessTextField = new NoCaretField
{
Text = "Pen",
InputView = thicknessPicker,
InputAccessoryView = toolbar,
Font = font
};
horzStackView.AddArrangedSubview(thicknessTextField);
thicknessModel.ValueChanged += (sender, args) =>
{
thicknessTextField.Text = thicknessModel.SelectedItem.Name;
canvasView.StrokeWidth = thicknessModel.SelectedItem.Value;
};
// Now add a Done button to the toolbar to rest text fields
var spacer = new UIBarButtonItem(UIBarButtonSystemItem.FlexibleSpace);
var doneButton = new UIBarButtonItem(UIBarButtonSystemItem.Done, (o, a) =>
{
colorTextField.ResignFirstResponder();
thicknessTextField.ResignFirstResponder();
});
toolbar.SetItems(new[] { spacer, doneButton }, false);
// Create the Clear button
UIButton button = new UIButton(UIButtonType.RoundedRect)
{
Font = font
};
horzStackView.AddArrangedSubview(button);
button.Layer.BorderColor = UIColor.Black.CGColor;
button.Layer.BorderWidth = 1;
button.Layer.CornerRadius = 10;
button.SetTitle("Clear", UIControlState.Normal);
button.SetTitleColor(UIColor.Black, UIControlState.Normal);
button.TouchUpInside += (sender, args) =>
{
canvasView.Clear();
};
UIButton savebutton = new UIButton(UIButtonType.RoundedRect)
{
Font = font
};
horzStackView.AddArrangedSubview(savebutton);
savebutton.Layer.BorderColor = UIColor.Black.CGColor;
savebutton.Layer.BorderWidth = 1;
savebutton.Layer.CornerRadius = 10;
savebutton.SetTitle("Save", UIControlState.Normal);
savebutton.SetTitleColor(UIColor.Black, UIControlState.Normal);
savebutton.TouchUpInside += SaveButtonAction;
UIButton closebutton = new UIButton(UIButtonType.RoundedRect)
{
Font = font
};
horzStackView.AddArrangedSubview(closebutton);
closebutton.Layer.BorderColor = UIColor.Black.CGColor;
closebutton.Layer.BorderWidth = 1;
closebutton.Layer.CornerRadius = 10;
closebutton.SetTitle("Close", UIControlState.Normal);
closebutton.SetTitleColor(UIColor.Black, UIControlState.Normal);
closebutton.TouchUpInside += (sender, args) =>
{
DismissViewController(true, null);
};
// Add space at right to horizontal UIStackView
horzStackView.AddArrangedSubview(new UILabel(new CGRect(0, 0, 10, 10)));
}
public override void ViewDidLoad()
{
base.ViewDidLoad();
UIView contentView = new UIView()
{
BackgroundColor = UIColor.White
};
View = contentView;
CGRect rect = UIScreen.MainScreen.Bounds;
rect.Y += 0;
rect.Height -= 50;
UIStackView vertStackView = new UIStackView(rect)
{
Axis = UILayoutConstraintAxis.Vertical
};
contentView.Add(vertStackView);
UIStackView horizStackView = new UIStackView(rect)
{
Axis = UILayoutConstraintAxis.Horizontal,
Alignment = UIStackViewAlignment.Center,
Distribution = UIStackViewDistribution.EqualSpacing
};
vertStackView.AddArrangedSubview(horizStackView);
CanvasView canvasView = new CanvasView();
vertStackView.AddArrangedSubview(canvasView);
horizStackView.AddArrangedSubview(new UILabel(new CGRect(0, 0, 10, 10)));
PickerDataModel <UIColor> colorModel = new PickerDataModel <UIColor>
{
Items =
{
new NamedValue <UIColor>("Rot", UIColor.Red),
new NamedValue <UIColor>("Grün", UIColor.Green),
new NamedValue <UIColor>("Blau", UIColor.Blue),
new NamedValue <UIColor>("Gelb", UIColor.Yellow)
}
};
UIPickerView colorPicker = new UIPickerView
{
Model = colorModel
};
PickerDataModel <float> thicknessModel = new PickerDataModel <float>
{
Items =
{
new NamedValue <float>("Dünn", 2),
new NamedValue <float>("Medium", 10),
new NamedValue <float>("Dick", 20),
new NamedValue <float>("Fett", 50)
}
};
UIPickerView thicknessPicker = new UIPickerView
{
Model = thicknessModel
};
var toolbar = new UIToolbar(new CGRect(0, 0, UIScreen.MainScreen.Bounds.Width, 45))
{
BarStyle = UIBarStyle.BlackTranslucent,
Translucent = true
};
UIFont font = UIFont.SystemFontOfSize(24);
UITextField colorTextField = new NoCaretField
{
Text = "Rot",
InputView = colorPicker,
InputAccessoryView = toolbar,
Font = font
};
horizStackView.AddArrangedSubview(colorTextField);
colorModel.ValueChanged += (sender, args) =>
{
colorTextField.Text = colorModel.SelectedItem.Name;
canvasView.StrokeColor = colorModel.SelectedItem.Value.CGColor;
};
UITextField thicknessTextField = new NoCaretField
{
Text = "Dünn",
InputView = thicknessPicker,
InputAccessoryView = toolbar,
Font = font
};
horizStackView.AddArrangedSubview(thicknessTextField);
thicknessModel.ValueChanged += (sender, args) =>
{
thicknessTextField.Text = thicknessModel.SelectedItem.Name;
canvasView.StrokeWidth = thicknessModel.SelectedItem.Value;
};
var spacer = new UIBarButtonItem(UIBarButtonSystemItem.FlexibleSpace);
var doneButton = new UIBarButtonItem(UIBarButtonSystemItem.Done, (sender, args) =>
{
colorTextField.ResignFirstResponder();
thicknessTextField.ResignFirstResponder();
});
toolbar.SetItems(new[] { spacer, doneButton }, true);
UIButton button = new UIButton(UIButtonType.RoundedRect)
{
Font = font
};
horizStackView.AddArrangedSubview(button);
button.Layer.BorderColor = UIColor.Blue.CGColor;
button.Layer.BorderWidth = 1;
button.Layer.CornerRadius = 10;
button.SetTitle("Clear", UIControlState.Normal);
button.SetTitleColor(UIColor.Black, UIControlState.Normal);
button.TouchUpInside += (sender, args) =>
{
canvasView.clear();
};
}
public PickerTableViewCell(
string labelName,
nfloat?height = null)
: base(UITableViewCellStyle.Default, nameof(PickerTableViewCell))
{
var descriptor = UIFontDescriptor.PreferredBody;
var pointSize = descriptor.PointSize;
Label = new UILabel
{
Text = labelName,
TranslatesAutoresizingMaskIntoConstraints = false,
Font = UIFont.FromDescriptor(descriptor, 0.8f * pointSize),
TextColor = new UIColor(red: 0.47f, green: 0.47f, blue: 0.47f, alpha: 1.0f)
};
ContentView.Add(Label);
TextField = new NoCaretField
{
BorderStyle = UITextBorderStyle.None,
TranslatesAutoresizingMaskIntoConstraints = false,
Font = UIFont.FromDescriptor(descriptor, pointSize)
};
var width = (float)UIScreen.MainScreen.Bounds.Width;
var toolbar = new UIToolbar(new RectangleF(0, 0, width, 44))
{
BarStyle = UIBarStyle.Default,
Translucent = true
};
var spacer = new UIBarButtonItem(UIBarButtonSystemItem.FlexibleSpace);
var doneButton = new UIBarButtonItem(UIBarButtonSystemItem.Done, (o, a) =>
{
var s = (PickerSource)Picker.Model;
if (s.SelectedIndex == -1 && Items != null && Items.Count > 0)
{
UpdatePickerSelectedIndex(0);
}
TextField.Text = s.SelectedItem;
TextField.ResignFirstResponder();
});
toolbar.SetItems(new[] { spacer, doneButton }, false);
TextField.InputView = Picker;
TextField.InputAccessoryView = toolbar;
ContentView.Add(TextField);
ContentView.AddConstraints(new NSLayoutConstraint[] {
NSLayoutConstraint.Create(TextField, NSLayoutAttribute.Leading, NSLayoutRelation.Equal, ContentView, NSLayoutAttribute.Leading, 1f, 15f),
NSLayoutConstraint.Create(ContentView, NSLayoutAttribute.Trailing, NSLayoutRelation.Equal, TextField, NSLayoutAttribute.Trailing, 1f, 15f),
NSLayoutConstraint.Create(ContentView, NSLayoutAttribute.Bottom, NSLayoutRelation.Equal, TextField, NSLayoutAttribute.Bottom, 1f, 10f),
NSLayoutConstraint.Create(TextField, NSLayoutAttribute.Top, NSLayoutRelation.Equal, Label, NSLayoutAttribute.Bottom, 1f, 10f),
NSLayoutConstraint.Create(Label, NSLayoutAttribute.Leading, NSLayoutRelation.Equal, ContentView, NSLayoutAttribute.Leading, 1f, 15f),
NSLayoutConstraint.Create(Label, NSLayoutAttribute.Top, NSLayoutRelation.Equal, ContentView, NSLayoutAttribute.Top, 1f, 10f),
NSLayoutConstraint.Create(ContentView, NSLayoutAttribute.Trailing, NSLayoutRelation.Equal, Label, NSLayoutAttribute.Trailing, 1f, 15f)
});
if (height.HasValue)
{
ContentView.AddConstraint(
NSLayoutConstraint.Create(TextField, NSLayoutAttribute.Height, NSLayoutRelation.Equal, null, NSLayoutAttribute.NoAttribute, 1f, height.Value));
}
Picker.Model = new PickerSource(this);
}
public override void LoadView()
{
base.LoadView();
// White view covering entire screen
UIView contentView = new UIView()
{
BackgroundColor = UIColor.White
};
View = contentView;
// Vertical UIStackView offset from status bar
CGRect rect = UIScreen.MainScreen.Bounds;
rect.Y += 20;
rect.Height -= 20;
UIStackView vertStackView = new UIStackView(rect)
{
Axis = UILayoutConstraintAxis.Vertical,
};
contentView.Add(vertStackView);
// Horizontal UIStackView for tools
UIStackView horzStackView = new UIStackView
{
Axis = UILayoutConstraintAxis.Horizontal,
Alignment = UIStackViewAlignment.Center,
Distribution = UIStackViewDistribution.EqualSpacing
};
vertStackView.AddArrangedSubview(horzStackView);
// FingerPaintCanvasView for drawing
FingerPaintCanvasView canvasView = new FingerPaintCanvasView();
vertStackView.AddArrangedSubview(canvasView);
// Add space at left to horizontal UIStackView
horzStackView.AddArrangedSubview(new UILabel(new CGRect(0, 0, 10, 10)));
// Construct UIPickerView for choosing color, but don't add it to any view
PickerDataModel <UIColor> colorModel = new PickerDataModel <UIColor>
{
Items =
{
new NamedValue <UIColor>("Red", UIColor.Red),
new NamedValue <UIColor>("Green", UIColor.Green),
new NamedValue <UIColor>("Blue", UIColor.Blue),
new NamedValue <UIColor>("Cyan", UIColor.Cyan),
new NamedValue <UIColor>("Magenta", UIColor.Magenta),
new NamedValue <UIColor>("Yellow", UIColor.Yellow),
new NamedValue <UIColor>("Black", UIColor.Black),
new NamedValue <UIColor>("Gray", UIColor.Gray),
new NamedValue <UIColor>("White", UIColor.White)
}
};
UIPickerView colorPicker = new UIPickerView
{
Model = colorModel
};
// Ditto for UIPickerView for stroke thickness
PickerDataModel <float> thicknessModel = new PickerDataModel <float>
{
Items =
{
new NamedValue <float>("Thin", 2),
new NamedValue <float>("Thinish", 5),
new NamedValue <float>("Medium", 10),
new NamedValue <float>("Thickish", 20),
new NamedValue <float>("Thick", 50)
}
};
UIPickerView thicknessPicker = new UIPickerView
{
Model = thicknessModel
};
// Create UIToolbar for dismissing picker when it's displayed
var toolbar = new UIToolbar(new CGRect(0, 0, UIScreen.MainScreen.Bounds.Width, 44))
{
BarStyle = UIBarStyle.Default,
Translucent = true
};
// Set Font to be used in tools
UIFont font = UIFont.SystemFontOfSize(24);
// Create a NoCaretField text field for invoking color picker & add to horizontal UIStackView
// (technique from Xamarin.Forms iOS PickerRenderer
UITextField colorTextField = new NoCaretField
{
Text = "Red",
InputView = colorPicker,
InputAccessoryView = toolbar,
Font = font
};
horzStackView.AddArrangedSubview(colorTextField);
// Use ValueChanged handler to change the color
colorModel.ValueChanged += (sender, args) =>
{
colorTextField.Text = colorModel.SelectedItem.Name;
canvasView.StrokeColor = colorModel.SelectedItem.Value.CGColor;
};
// Ditto for the thickness
UITextField thicknessTextField = new NoCaretField
{
Text = "Thin",
InputView = thicknessPicker,
InputAccessoryView = toolbar,
Font = font
};
horzStackView.AddArrangedSubview(thicknessTextField);
thicknessModel.ValueChanged += (sender, args) =>
{
thicknessTextField.Text = thicknessModel.SelectedItem.Name;
canvasView.StrokeWidth = thicknessModel.SelectedItem.Value;
};
// Now add a Done button to the toolbar to rest text fields
var spacer = new UIBarButtonItem(UIBarButtonSystemItem.FlexibleSpace);
var doneButton = new UIBarButtonItem(UIBarButtonSystemItem.Done, (o, a) =>
{
colorTextField.ResignFirstResponder();
thicknessTextField.ResignFirstResponder();
});
toolbar.SetItems(new[] { spacer, doneButton }, false);
// Create the Clear button
UIButton button = new UIButton(UIButtonType.RoundedRect)
{
Font = font
};
horzStackView.AddArrangedSubview(button);
button.Layer.BorderColor = UIColor.Black.CGColor;
button.Layer.BorderWidth = 1;
button.Layer.CornerRadius = 10;
button.SetTitle("Clear", UIControlState.Normal);
button.SetTitleColor(UIColor.Black, UIControlState.Normal);
button.TouchUpInside += (sender, args) =>
{
canvasView.Clear();
};
// Add space at right to horizontal UIStackView
horzStackView.AddArrangedSubview(new UILabel(new CGRect(0, 0, 10, 10)));
}
protected override void OnElementChanged(ElementChangedEventArgs <ExtendedDatePicker> e)
{
base.OnElementChanged(e);
if (e.NewElement == null)
{
return;
}
if (Control == null)
{
var entry = new NoCaretField {
BorderStyle = UITextBorderStyle.RoundedRect
};
entry.EditingDidBegin += OnStarted;
entry.EditingDidEnd += OnEnded;
_picker = new UIDatePicker
{
Mode = UIDatePickerMode.Date,
TimeZone = new NSTimeZone("UTC")
};
_picker.ValueChanged += HandleValueChanged;
var uiToolbar = new UIToolbar(new CGRect(0, 0, UIScreen.MainScreen.Bounds.Width, 44))
{
BarStyle = UIBarStyle.Default,
Translucent = true
};
var clearButton = new UIBarButtonItem(UIBarButtonSystemItem.Trash, (o, a) =>
{
//Clear the date.
Element.SelectedDate = null;
Element.UpdateDate();
SetText(false);
entry.ResignFirstResponder();
});
clearButton.Title = "Clear";
var space = new UIBarButtonItem(UIBarButtonSystemItem.FlexibleSpace);
var cancelButton = new UIBarButtonItem(UIBarButtonSystemItem.Cancel, (o, a) =>
{
entry.ResignFirstResponder();
});
var doneButton = new UIBarButtonItem(UIBarButtonSystemItem.Done, (o, a) =>
{
//Set the date.
Element.SelectedDate = _picker.Date.ToDateTime();
Element.UpdateDate();
SetText(false);
entry.ResignFirstResponder();
});
uiToolbar.SetItems(new[] { clearButton, space, cancelButton, doneButton }, false);
entry.InputView = _picker;
entry.InputAccessoryView = uiToolbar;
entry.InputView.AutoresizingMask = UIViewAutoresizing.FlexibleHeight;
entry.InputAccessoryView.AutoresizingMask = UIViewAutoresizing.FlexibleHeight;
entry.InputAssistantItem.LeadingBarButtonGroups = null;
entry.InputAssistantItem.TrailingBarButtonGroups = null;
_defaultTextColor = entry.TextColor;
_useLegacyColorManagement = e.NewElement.UseLegacyColorManagement <DatePicker>();
SetNativeControl(entry);
}
SetText(false);
UpdateFont();
UpdateMaximumDate();
UpdateMinimumDate();
UpdateTextColor();
UpdateFlowDirection();
UpdatePlaceholder();
}
