protected override void OnAttached()
{
formsEditor = Element as EditorWithPlaceholder;
nativeTextField = Control as UITextView;
placeholderText = new UILabel
{
LineBreakMode = UILineBreakMode.WordWrap,
Lines = 1,
BackgroundColor = UIColor.Clear,
TextColor = formsEditor.PlaceholderTextColor.ToUIColor(),
Text = formsEditor.Placeholder
};
if (string.IsNullOrEmpty(formsEditor.Text))
{
placeholderText.Alpha = 1;
}
else
{
placeholderText.Alpha = 0;
}
nativeTextField.AddSubview(placeholderText);
}
protected override void OnAttached()
{
_textView = Control as UITextView;
_placeholderLabel = new UILabel();
_placeholderLabel.LineBreakMode = UILineBreakMode.WordWrap;
_placeholderLabel.Lines = 0;
_placeholderLabel.Font = _textView.Font;
_placeholderLabel.BackgroundColor = UIColor.Clear;
_placeholderLabel.Alpha = 0;
UpdateText();
UpdateColor();
_textView.AddSubview(_placeholderLabel);
_placeholderLabel.TranslatesAutoresizingMaskIntoConstraints = false;
_placeholderLabel.TopAnchor.ConstraintEqualTo(_textView.TopAnchor, 8).Active = true;
_placeholderLabel.LeftAnchor.ConstraintEqualTo(_textView.LeftAnchor, 4).Active = true;
_placeholderLabel.RightAnchor.ConstraintEqualTo(_textView.RightAnchor, 4).Active = true;
_placeholderLabel.WidthAnchor.ConstraintEqualTo(_textView.WidthAnchor, 1, -8).Active = true;
_textView.SendSubviewToBack(_placeholderLabel);
if (_textView.Text.Length == 0 && _placeholderLabel.Text.Length > 0)
{
_placeholderLabel.Alpha = 1;
}
_textView.Changed += _textView_Changed;
}
private void CreatePlaceholderLabel(PlaceholderEditor element, UITextView parent)
{
_placeholderLabel = new UILabel
{
Text = element.Placeholder,
TextColor = element.PlaceholderColor.ToUIColor(),
BackgroundColor = UIColor.Clear,
//Font = UIFont.FromName(element.FontFamily, (nfloat)element.FontSize)
};
if (!string.IsNullOrEmpty(element.FontFamily))
{
_placeholderLabel.Font = UIFont.FromName(element.FontFamily, (nfloat)element.FontSize);
}
else
{
_placeholderLabel.Font = UIFont.SystemFontOfSize((nfloat)element.FontSize);
}
_placeholderLabel.SizeToFit();
parent.AddSubview(_placeholderLabel);
parent.SubviewsDoNotTranslateAutoresizingMaskIntoConstraints();
parent.AddConstraints(
_placeholderLabel.AtLeftOf(parent, 7),
_placeholderLabel.AtTopOf(parent, 8)
);
parent.LayoutIfNeeded();
_placeholderLabel.Hidden = parent.HasText;
}
private void SetPlaceholder()
{
var _titleTextViewDelegate = new PostTitleTextViewDelegate();
titleTextField.Delegate = _titleTextViewDelegate;
_titleTextViewDelegate.EditingStartedAction += () =>
{
Activeview = titleTextField;
};
titlePlaceholderLabel = new UILabel();
titlePlaceholderLabel.Text = "Enter a title of your photo";
titlePlaceholderLabel.SizeToFit();
titlePlaceholderLabel.Font = Constants.Regular14;
titlePlaceholderLabel.TextColor = Constants.R151G155B158;
titlePlaceholderLabel.Hidden = false;
var labelX = titleTextField.TextContainerInset.Left;
var labelY = titleTextField.TextContainerInset.Top;
var labelWidth = titlePlaceholderLabel.Frame.Width;
var labelHeight = titlePlaceholderLabel.Frame.Height;
titlePlaceholderLabel.Frame = new CGRect(5, labelY, labelWidth, labelHeight);
titleTextField.AddSubview(titlePlaceholderLabel);
_titleTextViewDelegate.Placeholder = titlePlaceholderLabel;
var _descriptionTextViewDelegate = new PostTitleTextViewDelegate(2048);
_descriptionTextViewDelegate.EditingStartedAction += () =>
{
Activeview = descriptionTextField;
};
descriptionTextField.Delegate = _descriptionTextViewDelegate;
descriptionPlaceholderLabel = new UILabel();
descriptionPlaceholderLabel.Text = "Enter a description of your photo";
descriptionPlaceholderLabel.SizeToFit();
descriptionPlaceholderLabel.Font = Constants.Regular14;
descriptionPlaceholderLabel.TextColor = Constants.R151G155B158;
descriptionPlaceholderLabel.Hidden = false;
var descLabelX = descriptionTextField.TextContainerInset.Left;
var descLabelY = descriptionTextField.TextContainerInset.Top;
var descLabelWidth = descriptionPlaceholderLabel.Frame.Width;
var descLabelHeight = descriptionPlaceholderLabel.Frame.Height;
descriptionPlaceholderLabel.Frame = new CGRect(5, descLabelY, descLabelWidth, descLabelHeight);
descriptionTextField.AddSubview(descriptionPlaceholderLabel);
_descriptionTextViewDelegate.Placeholder = descriptionPlaceholderLabel;
_descriptionTextViewDelegate.EditingStartedAction += EditingStartedAction;
_titleTextViewDelegate.EditingStartedAction += EditingStartedAction;
}
private void CreatePlaceholderLabel(EditorWithPlaceholder element, UITextView parent)
{
placeholderLabel = new UILabel
{
Text = element.Placeholder,
TextColor = element.PlaceholderColor.ToUIColor(),
BackgroundColor = UIColor.Clear,
TextAlignment = UITextAlignment.Natural
};
placeholderLabel.SizeToFit();
parent.AddSubview(placeholderLabel);
parent.SubviewsDoNotTranslateAutoresizingMaskIntoConstraints();
parent.AddConstraints(placeholderLabel.AtLeftOf(parent, 7), placeholderLabel.WithSameCenterY(parent));
parent.LayoutIfNeeded();
placeholderLabel.Hidden = parent.HasText;
}
private void SetPlaceholder()
{
var placeholderLabel = new UILabel();
placeholderLabel.Text = AppSettings.LocalizationManager.GetText(LocalizationKeys.PutYourComment);
placeholderLabel.SizeToFit();
placeholderLabel.Font = Constants.Regular14;
placeholderLabel.TextColor = Constants.R151G155B158;
placeholderLabel.Hidden = false;
var labelX = _commentTextView.TextContainerInset.Left;
var labelY = _commentTextView.TextContainerInset.Top;
var labelWidth = placeholderLabel.Frame.Width;
var labelHeight = placeholderLabel.Frame.Height;
placeholderLabel.Frame = new CGRect(labelX, labelY, labelWidth, labelHeight);
_commentTextView.AddSubview(placeholderLabel);
_commentsTextViewDelegate.Placeholder = placeholderLabel;
}
private void CreatePlaceholderLabel(PlaceholderEditor element, UITextView parent)
{
_placeholderLabel = new UILabel
{
Text = element.Placeholder,
TextColor = element.PlaceholderColor.ToUIColor(),
BackgroundColor = UIColor.Clear,
Font = UIFont.FromName(element.FontFamily, (nfloat)element.FontSize)
};
_placeholderLabel.SizeToFit();
parent.AddSubview(_placeholderLabel);
parent.SubviewsDoNotTranslateAutoresizingMaskIntoConstraints();
parent.AddConstraints(
_placeholderLabel.AtLeftOf(parent, 7),
_placeholderLabel.WithSameCenterY(parent)
);
parent.LayoutIfNeeded();
_placeholderLabel.Hidden = parent.HasText;
}
private void ConfigureControl()
{
if (Control != null)
{
if (Control is UITextView)
{
UITextView vUpdatedEntry = (UITextView)Control;
this.UiTextViewForControl = vUpdatedEntry;
var buttonRect = UIButton.FromType(UIButtonType.Custom);
buttonRect.SetImage(UIImage.FromBundle("show_black_24"), UIControlState.Normal);
buttonRect.TouchUpInside += (object sender, EventArgs e1) => {
if (vUpdatedEntry.SecureTextEntry)
{
vUpdatedEntry.SecureTextEntry = false;
buttonRect.SetImage(UIImage.FromBundle("hide_black_24"), UIControlState.Normal);
}
else
{
vUpdatedEntry.SecureTextEntry = true;
buttonRect.SetImage(UIImage.FromBundle("show_black_24"), UIControlState.Normal);
}
// Change the text based on whether password is to be hidden or visible.
HandleSecureEntryChange(vUpdatedEntry);
};
vUpdatedEntry.ShouldChangeText += (textView, range, toReplaceText) => {
if ("\n" == toReplaceText)
{ //Drop the keyboard if 'Enter/Return' is pressed
vUpdatedEntry.ResignFirstResponder();
return(false);
}
//Get the text that was entered, store that in LastText. Return true, so that Changed is called.
LastText = new NSString(toReplaceText);
return(true);
};
// Add eventHandler for Changed.
vUpdatedEntry.Changed += HandleTextChange;
buttonRect.ContentMode = UIViewContentMode.ScaleToFill;
UIView paddingViewRight = new UIView(new System.Drawing.RectangleF(0.0f, 0.0f, 30.0f, 18.0f));
paddingViewRight.AddSubview(buttonRect);
buttonRect.TranslatesAutoresizingMaskIntoConstraints = false;
buttonRect.CenterYAnchor.ConstraintEqualTo(paddingViewRight.CenterYAnchor).Active = true;
vUpdatedEntry.AddSubview(paddingViewRight);
paddingViewRight.TranslatesAutoresizingMaskIntoConstraints = false;
paddingViewRight.TrailingAnchor.ConstraintEqualTo(vUpdatedEntry.LayoutMarginsGuide.TrailingAnchor, 8.0f).Active = true;
paddingViewRight.HeightAnchor.ConstraintEqualTo(vUpdatedEntry.HeightAnchor).Active = true;
paddingViewRight.BottomAnchor.ConstraintEqualTo(vUpdatedEntry.LayoutMarginsGuide.BottomAnchor).Active = true;
paddingViewRight.TopAnchor.ConstraintEqualTo(vUpdatedEntry.LayoutMarginsGuide.TopAnchor, -8.0f).Active = true;
paddingViewRight.WidthAnchor.ConstraintEqualTo(buttonRect.WidthAnchor, 1.0f, 3.0f).Active = true;
vUpdatedEntry.TextContainerInset = new UIEdgeInsets(8.0f, 0.0f, 8.0f, paddingViewRight.Frame.Width + 5.0f);
Control.Layer.CornerRadius = 4;
Control.Layer.BorderColor = new CoreGraphics.CGColor(255, 255, 255);
Control.Layer.MasksToBounds = true;
vUpdatedEntry.TextAlignment = UITextAlignment.Left;
}
}
}