public NewCommentViewController(Func <string, Task> saveAction)
{
ViewModel = new NewCommentViewModel(saveAction);
Title = "New Comment";
EdgesForExtendedLayout = UIRectEdge.None;
var discardButton = new UIBarButtonItem {
Image = Images.Buttons.Cancel
};
var doneButton = new UIBarButtonItem(UIBarButtonSystemItem.Save);
NavigationItem.RightBarButtonItem = doneButton;
NavigationItem.LeftBarButtonItem = discardButton;
_textView = new UITextView();
_textView.Font = UIFont.PreferredBody;
_textView.AutoresizingMask = UIViewAutoresizing.FlexibleHeight | UIViewAutoresizing.FlexibleWidth;
// Work around an Apple bug in the UITextView that crashes
if (ObjCRuntime.Runtime.Arch == ObjCRuntime.Arch.SIMULATOR)
{
_textView.AutocorrectionType = UITextAutocorrectionType.No;
}
OnActivation(d =>
{
discardButton
.GetClickedObservable()
.SelectUnit()
.BindCommand(ViewModel.DiscardCommand)
.AddTo(d);
this.WhenAnyValue(x => x.ViewModel.DoneCommand.CanExecute)
.Switch()
.Subscribe(x => doneButton.Enabled = x)
.AddTo(d);
doneButton
.GetClickedObservable()
.Do(_ => _textView.ResignFirstResponder())
.SelectUnit()
.BindCommand(ViewModel.DoneCommand)
.AddTo(d);
_textView
.GetChangedObservable()
.Subscribe(x => ViewModel.Text = x)
.AddTo(d);
this.WhenAnyValue(x => x.ViewModel.Text)
.Subscribe(x => _textView.Text = x)
.AddTo(d);
this.WhenAnyObservable(x => x.ViewModel.DismissCommand)
.Select(_ => Unit.Default)
.Subscribe(_dismissSubject)
.AddTo(d);
});
}
public ComposerViewController(Func <string, Task> doneAction)
{
Title = "New Comment";
EdgesForExtendedLayout = UIRectEdge.None;
var close = new UIBarButtonItem {
Image = Images.Buttons.Cancel
};
NavigationItem.LeftBarButtonItem = close;
_doneButton = new UIBarButtonItem(UIBarButtonSystemItem.Save);
NavigationItem.RightBarButtonItem = _doneButton;
TextView = new UITextView(ComputeComposerSize(CGRect.Empty));
TextView.Font = UIFont.PreferredBody;
TextView.AutoresizingMask = UIViewAutoresizing.FlexibleHeight | UIViewAutoresizing.FlexibleWidth;
// Work around an Apple bug in the UITextView that crashes
if (ObjCRuntime.Runtime.Arch == ObjCRuntime.Arch.SIMULATOR)
{
TextView.AutocorrectionType = UITextAutocorrectionType.No;
}
View.AddSubview(TextView);
OnActivation(d =>
{
close
.GetClickedObservable()
.Select(_ => Unit.Default)
.Subscribe(_dismissObservable)
.AddTo(d);
_doneButton
.GetClickedObservable()
.Subscribe(async _ =>
{
TextView.ResignFirstResponder();
_doneButton.Enabled = false;
try
{
await doneAction(TextView.Text);
_dismissObservable.OnNext(Unit.Default);
}
catch (Exception e)
{
System.Diagnostics.Debug.WriteLine(e.Message + " - " + e.StackTrace);
}
finally
{
_doneButton.Enabled = true;
}
})
.AddTo(d);
TextView
.GetChangedObservable()
.Subscribe(x => this.RaisePropertyChanged(nameof(Text)))
.AddTo(d);
this.WhenAnyValue(x => x.Text)
.Select(x => x.Length > 0)
.Subscribe(x => _doneButton.Enabled = x)
.AddTo(d);
});
}
