static async void OnPagePrompt(Page sender, PromptArguments options)
{
var promptDialog = new PromptDialog
{
Title = options.Title ?? string.Empty,
Message = options.Message ?? string.Empty,
Input = options.InitialValue ?? string.Empty,
Placeholder = options.Placeholder ?? string.Empty,
MaxLength = options.MaxLength >= 0 ? options.MaxLength : 0,
InputScope = options.Keyboard.ToInputScope()
};
if (options.Cancel != null)
{
promptDialog.SecondaryButtonText = options.Cancel;
}
if (options.Accept != null)
{
promptDialog.PrimaryButtonText = options.Accept;
}
var currentAlert = s_currentPrompt;
while (currentAlert != null)
{
await currentAlert;
currentAlert = s_currentPrompt;
}
s_currentPrompt = ShowPrompt(promptDialog);
options.SetResult(await s_currentPrompt.ConfigureAwait(false));
s_currentPrompt = null;
}
void PresentPrompt(PromptArguments arguments)
{
var window = new UIWindow {
BackgroundColor = Colors.Transparent.ToNative()
};
var alert = UIAlertController.Create(arguments.Title, arguments.Message, UIAlertControllerStyle.Alert);
alert.AddTextField(uiTextField =>
{
uiTextField.Placeholder = arguments.Placeholder;
uiTextField.Text = arguments.InitialValue;
uiTextField.ShouldChangeCharacters = (field, range, replacementString) => arguments.MaxLength <= -1 || field.Text.Length + replacementString.Length - range.Length <= arguments.MaxLength;
uiTextField.ApplyKeyboard(arguments.Keyboard);
});
var oldFrame = alert.View.Frame;
alert.View.Frame = new RectangleF((float)oldFrame.X, (float)oldFrame.Y, (float)oldFrame.Width, (float)oldFrame.Height - AlertPadding * 2);
alert.AddAction(CreateActionWithWindowHide(arguments.Cancel, UIAlertActionStyle.Cancel, () => arguments.SetResult(null), window));
alert.AddAction(CreateActionWithWindowHide(arguments.Accept, UIAlertActionStyle.Default, () => arguments.SetResult(alert.TextFields[0].Text), window));
PresentPopUp(window, alert);
}
public Task <string> DisplayPromptAsync(string title, string message, string accept = "OK", string cancel = "Cancel", string placeholder = null, int maxLength = -1, Keyboard keyboard = default(Keyboard))
{
var args = new PromptArguments(title, message, accept, cancel, placeholder, maxLength, keyboard);
MessagingCenter.Send(this, PromptSignalName, args);
return(args.Result.Task);
}
void OnPromptRequested(IView sender, PromptArguments arguments)
{
// Verify that the page making the request is part of this activity
if (!PageIsInThisContext(sender))
{
return;
}
var alertDialog = new DialogBuilder(Activity).Create();
if (alertDialog == null)
{
return;
}
alertDialog.SetTitle(arguments.Title);
alertDialog.SetMessage(arguments.Message);
var frameLayout = new FrameLayout(Activity);
var editText = new EditText(Activity)
{
Hint = arguments.Placeholder, Text = arguments.InitialValue
};
var layoutParams = new FrameLayout.LayoutParams(ViewGroup.LayoutParams.MatchParent, ViewGroup.LayoutParams.WrapContent)
{
LeftMargin = (int)(22 * Activity.Resources.DisplayMetrics.Density),
RightMargin = (int)(22 * Activity.Resources.DisplayMetrics.Density)
};
editText.LayoutParameters = layoutParams;
editText.InputType = arguments.Keyboard.ToInputType();
if (arguments.Keyboard == Keyboard.Numeric)
{
editText.KeyListener = LocalizedDigitsKeyListener.Create(editText.InputType);
}
if (arguments.MaxLength > -1)
{
editText.SetFilters(new IInputFilter[] { new InputFilterLengthFilter(arguments.MaxLength) });
}
frameLayout.AddView(editText);
alertDialog.SetView(frameLayout);
alertDialog.SetButton((int)DialogButtonType.Positive, arguments.Accept, (o, args) => arguments.SetResult(editText.Text));
alertDialog.SetButton((int)DialogButtonType.Negative, arguments.Cancel, (o, args) => arguments.SetResult(null));
alertDialog.SetCancelEvent((o, args) => { arguments.SetResult(null); });
alertDialog.Window.SetSoftInputMode(SoftInput.StateVisible);
alertDialog.Show();
editText.RequestFocus();
}
public Task <string> DisplayPromptAsync(string title, string message, string accept = "OK", string cancel = "Cancel", string placeholder = null, int maxLength = -1, Keyboard keyboard = default(Keyboard), string initialValue = "")
{
var args = new PromptArguments(title, message, accept, cancel, placeholder, maxLength, keyboard, initialValue);
if (IsPlatformEnabled)
{
MessagingCenter.Send(this, PromptSignalName, args);
}
else
{
_pendingActions.Add(() => MessagingCenter.Send(this, PromptSignalName, args));
}
return(args.Result.Task);
}
void PresentPrompt(PromptArguments arguments)
{
var alert = UIAlertController.Create(arguments.Title, arguments.Message, UIAlertControllerStyle.Alert);
alert.AddTextField(uiTextField =>
{
uiTextField.Placeholder = arguments.Placeholder;
uiTextField.Text = arguments.InitialValue;
uiTextField.ShouldChangeCharacters = (field, range, replacementString) => arguments.MaxLength <= -1 || field.Text.Length + replacementString.Length - range.Length <= arguments.MaxLength;
uiTextField.ApplyKeyboard(arguments.Keyboard);
});
var oldFrame = alert.View.Frame;
alert.View.Frame = new RectF((float)oldFrame.X, (float)oldFrame.Y, (float)oldFrame.Width, (float)oldFrame.Height - AlertPadding * 2);
alert.AddAction(UIAlertAction.Create(arguments.Cancel, UIAlertActionStyle.Cancel, _ => arguments.SetResult(null)));
alert.AddAction(UIAlertAction.Create(arguments.Accept, UIAlertActionStyle.Default, _ => arguments.SetResult(alert.TextFields[0].Text)));
PresentPopUp(VirtualView, PlatformView, alert);
}
async void OnPromptRequested(Page sender, PromptArguments arguments)
{
var promptDialog = new PromptDialog
{
Title = arguments.Title ?? string.Empty,
Message = arguments.Message ?? string.Empty,
Input = arguments.InitialValue ?? string.Empty,
Placeholder = arguments.Placeholder ?? string.Empty,
MaxLength = arguments.MaxLength >= 0 ? arguments.MaxLength : 0,
// TODO: Implement InputScope property after port the keyboardExtensions
};
if (arguments.Cancel != null)
{
promptDialog.SecondaryButtonText = arguments.Cancel;
}
if (arguments.Accept != null)
{
promptDialog.PrimaryButtonText = arguments.Accept;
}
var currentAlert = CurrentPrompt;
while (currentAlert != null)
{
await currentAlert;
currentAlert = CurrentPrompt;
}
// This is a temporary workaround
promptDialog.XamlRoot = Window.Content.XamlRoot;
CurrentPrompt = ShowPrompt(promptDialog);
arguments.SetResult(await CurrentPrompt.ConfigureAwait(false));
CurrentPrompt = null;
}
void OnPromptRequested(Page sender, PromptArguments args)
{
// Verify that the page making the request is child of this platform
if (!_platform.PageIsChildOfPlatform(sender))
{
return;
}
var prompt = Native.Dialog.CreateDialog(Forms.NativeParent, (args.Accept != null));
prompt.Title = args.Title;
var entry = new Entry
{
MinimumWidthRequest = 200,
HorizontalOptions = LayoutOptions.FillAndExpand,
BackgroundColor = Color.FromRgb(250, 250, 250),
TextColor = Color.Black,
Keyboard = args.Keyboard,
};
if (!string.IsNullOrEmpty(args.Placeholder))
{
entry.Placeholder = args.Placeholder;
}
if (args.MaxLength > 0)
{
entry.MaxLength = args.MaxLength;
}
var layout = new StackLayout
{
Spacing = 10,
Children =
{
new Label
{
LineBreakMode = LineBreakMode.CharacterWrap,
TextColor = DeviceInfo.Idiom == DeviceIdiom.Watch ? Color.White : Color.Accent,
Text = args.Message,
HorizontalOptions = LayoutOptions.FillAndExpand,
HorizontalTextAlignment = TextAlignment.Center,
FontSize = Device.GetNamedSize(NamedSize.Subtitle, typeof(Label)),
},
entry,
}
};
layout.Parent = sender;
var layoutrenderer = Platform.GetOrCreateRenderer(layout);
var request = layout.Measure(DeviceInfo.Idiom == DeviceIdiom.Watch ? sender.Width * 0.7 : sender.Width, sender.Height);
(layoutrenderer as ILayoutRenderer).RegisterOnLayoutUpdated();
layoutrenderer.NativeView.MinimumHeight = Forms.ConvertToScaledPixel(request.Request.Height);
layoutrenderer.NativeView.MinimumWidth = Forms.ConvertToScaledPixel(request.Request.Width);
prompt.Content = layoutrenderer.NativeView;
var cancel = new EButton(prompt)
{
Text = args.Cancel
};
prompt.NegativeButton = cancel;
cancel.Clicked += (s, evt) =>
{
args.SetResult(null);
prompt.Dismiss();
};
if (args.Accept != null)
{
var ok = new EButton(prompt)
{
Text = args.Accept
};
prompt.NeutralButton = ok;
ok.Clicked += (s, evt) =>
{
args.SetResult(entry.Text);
prompt.Dismiss();
};
}
entry.Completed += (s, e) =>
{
args.SetResult(entry.Text);
prompt.Dismiss();
};
prompt.BackButtonPressed += (s, evt) =>
{
prompt.Dismiss();
};
prompt.Show();
_alerts.Add(prompt);
prompt.Dismissed += (s, e) => _alerts.Remove(prompt);
}
void OnPromptRequested(IView sender, PromptArguments arguments)
{
PresentPrompt(arguments);
}
void OnPromptRequested(Page sender, PromptArguments args)
{
// Verify that the page making the request is child of this platform
if (!PageIsInThisContext(sender))
{
return;
}
var prompt = Dialog.CreateDialog(MauiContext.GetPlatformParent(), (args.Accept != null));
prompt.Title = args.Title;
var entry = new Entry
{
MinimumWidthRequest = 200,
HorizontalOptions = LayoutOptions.Fill,
BackgroundColor = GColor.FromRgb(250, 250, 250),
TextColor = GColor.FromRgb(0, 0, 0),
Keyboard = args.Keyboard,
};
if (!string.IsNullOrEmpty(args.Placeholder))
{
entry.Placeholder = args.Placeholder;
}
if (args.MaxLength > 0)
{
entry.MaxLength = args.MaxLength;
}
var layout = new VerticalStackLayout
{
Spacing = 10,
};
layout.Add(new Label
{
LineBreakMode = LineBreakMode.CharacterWrap,
TextColor = Application.AccentColor,
Text = args.Message,
HorizontalOptions = LayoutOptions.Fill,
HorizontalTextAlignment = TextAlignment.Center,
#pragma warning disable CS0612 // Type or member is obsolete
FontSize = Device.GetNamedSize(NamedSize.Subtitle, typeof(Label)),
#pragma warning disable CS0612 // Type or member is obsolete
});
layout.Add(entry);
layout.Parent = sender;
var nativeView = layout.ToPlatform(MauiContext);
var width = sender.Width <= -1 ? double.PositiveInfinity : sender.Width;
var height = sender.Height <= -1 ? double.PositiveInfinity : sender.Height;
var request = layout.CrossPlatformMeasure(width, height);
nativeView.MinimumHeight = request.Height.ToScaledPixel();
nativeView.MinimumWidth = request.Width.ToScaledPixel();
prompt.Content = nativeView;
var cancel = new EButton(prompt)
{
Text = args.Cancel
};
prompt.NegativeButton = cancel;
cancel.Clicked += (s, evt) =>
{
args.SetResult(null);
prompt.Dismiss();
};
if (args.Accept != null)
{
var ok = new EButton(prompt)
{
Text = args.Accept
};
prompt.NeutralButton = ok;
ok.Clicked += (s, evt) =>
{
args.SetResult(entry.Text);
prompt.Dismiss();
};
}
entry.Completed += (s, e) =>
{
args.SetResult(entry.Text);
prompt.Dismiss();
};
prompt.BackButtonPressed += (s, evt) =>
{
prompt.Dismiss();
};
prompt.Show();
_alerts.Add(prompt);
prompt.Dismissed += (s, e) => _alerts.Remove(prompt);
}