private void InitializeControls()
{
Frame = new CoreGraphics.CGRect(0, 0, 44, 44);
_imageView = new UIImageView()
.WithFrame(8, 8, 28, 28)
.WithTune(tune =>
{
tune.ClipsToBounds = true;
});
_imageView.AddConstraint(NSLayoutConstraint.Create(_imageView, NSLayoutAttribute.Height, NSLayoutRelation.Equal, 1, 28));
_imageView.AddConstraint(NSLayoutConstraint.Create(_imageView, NSLayoutAttribute.Width, NSLayoutRelation.GreaterThanOrEqual, 1, 28));
_badge = new AppRopio.Base.iOS.Controls.ARLabel();
_badge.WithFrame(24, 4, 16, 16);
_badge.WithTextAlignment(UITextAlignment.Center);
_badge.TranslatesAutoresizingMaskIntoConstraints = false;
_badge.AddConstraint(NSLayoutConstraint.Create(_badge, NSLayoutAttribute.Height, NSLayoutRelation.Equal, 1, 16));
_badge.AddConstraint(NSLayoutConstraint.Create(_badge, NSLayoutAttribute.Width, NSLayoutRelation.GreaterThanOrEqual, 1, 16));
SetupImage(_imageView);
SetupLabel(_badge);
AddSubviews(_imageView, _badge);
AddConstraints(new[]
{
NSLayoutConstraint.Create(_badge, NSLayoutAttribute.Top, NSLayoutRelation.Equal, this, NSLayoutAttribute.Top, 1, 4),
NSLayoutConstraint.Create(_badge, NSLayoutAttribute.Trailing, NSLayoutRelation.Equal, this, NSLayoutAttribute.Trailing, 1, -4),
NSLayoutConstraint.Create(_imageView, NSLayoutAttribute.CenterX, NSLayoutRelation.Equal, this, NSLayoutAttribute.CenterX, 1, 0),
NSLayoutConstraint.Create(_imageView, NSLayoutAttribute.CenterY, NSLayoutRelation.Equal, this, NSLayoutAttribute.CenterY, 1, 0)
});
}
private void SetupAppropioView()
{
this.AddConstraint(NSLayoutConstraint.Create(this, NSLayoutAttribute.Height, NSLayoutRelation.Equal, 1, 97.If_iPhoneX(127)));
this.AddConstraint(NSLayoutConstraint.Create(this, NSLayoutAttribute.Width, NSLayoutRelation.Equal, 1, UIScreen.MainScreen.Bounds.Width));
var backgroundColor = Theme.ColorPalette.Background.ToUIColor();
BackgroundColor = backgroundColor;
var brightness = ((backgroundColor.CGColor.Components[0] * 299) + (backgroundColor.CGColor.Components[1] * 587) + (backgroundColor.CGColor.Components[2] * 114)) / 1000;
var contentColor = brightness < 0.5f ? UIColor.White : UIColor.Black;
AddSubviews(
_appropioImage = new UIImageView(ImageCache.GetImage("Images/appropio_logo.png", contentColor))
{
TranslatesAutoresizingMaskIntoConstraints = false
},
_appropioNameLabel = new UILabel()
{
AttributedText = new NSMutableAttributedString("APPROPIO", new UIStringAttributes {
KerningAdjustment = 5, ForegroundColor = contentColor, Font = (UIFont)Theme.FontsPalette.BoldOfSize(13)
}),
TranslatesAutoresizingMaskIntoConstraints = false
},
_appropioDevelopedLabel = new UILabel()
{
Font = (UIFont)Theme.FontsPalette.MediumOfSize(10),
TextColor = contentColor.ColorWithAlpha(0.3f),
Text = "designed by",
TranslatesAutoresizingMaskIntoConstraints = false
}
);
_appropioImage.AddConstraint(NSLayoutConstraint.Create(_appropioImage, NSLayoutAttribute.Height, NSLayoutRelation.Equal, 1, 34));
_appropioImage.AddConstraint(NSLayoutConstraint.Create(_appropioImage, NSLayoutAttribute.Width, NSLayoutRelation.Equal, 1, 27));
this.AddConstraints(new NSLayoutConstraint[]
{
NSLayoutConstraint.Create(_appropioImage, NSLayoutAttribute.Top, NSLayoutRelation.Equal, this, NSLayoutAttribute.Top, 1, 10),
NSLayoutConstraint.Create(_appropioImage, NSLayoutAttribute.CenterX, NSLayoutRelation.Equal, this, NSLayoutAttribute.CenterX, 1, 0),
NSLayoutConstraint.Create(_appropioNameLabel, NSLayoutAttribute.Top, NSLayoutRelation.Equal, _appropioImage, NSLayoutAttribute.Bottom, 1, 12),
NSLayoutConstraint.Create(_appropioNameLabel, NSLayoutAttribute.CenterX, NSLayoutRelation.Equal, this, NSLayoutAttribute.CenterX, 1, 0),
NSLayoutConstraint.Create(_appropioDevelopedLabel, NSLayoutAttribute.Top, NSLayoutRelation.Equal, _appropioNameLabel, NSLayoutAttribute.Bottom, 1, 4),
NSLayoutConstraint.Create(_appropioDevelopedLabel, NSLayoutAttribute.CenterX, NSLayoutRelation.Equal, this, NSLayoutAttribute.CenterX, 1, 0),
});
}
public TTGSnackbar() : base(CoreGraphics.CGRect.FromLTRB(0, 0, 320, 44))
{
this.TranslatesAutoresizingMaskIntoConstraints = false;
this.BackgroundColor = UIColor.DarkGray;
this.Layer.CornerRadius = 4;
this.Layer.MasksToBounds = true;
SetupSafeAreaInsets();
this.MessageLabel = new UILabel
{
TranslatesAutoresizingMaskIntoConstraints = false,
TextColor = UIColor.White,
Font = UIFont.SystemFontOfSize(14),
BackgroundColor = UIColor.Clear,
LineBreakMode = UILineBreakMode.WordWrap,
TextAlignment = UITextAlignment.Left,
Lines = 0
};
this.AddSubview(this.MessageLabel);
IconImageView = new UIImageView()
{
TranslatesAutoresizingMaskIntoConstraints = false,
BackgroundColor = UIColor.Clear,
ContentMode = IconContentMode
};
this.AddSubview(IconImageView);
this.ActionButton = new UIButton
{
TranslatesAutoresizingMaskIntoConstraints = false,
BackgroundColor = UIColor.Clear
};
this.ActionButton.TitleLabel.Font = UIFont.SystemFontOfSize(14);
this.ActionButton.TitleLabel.AdjustsFontSizeToFitWidth = true;
this.ActionButton.SetTitleColor(UIColor.White, UIControlState.Normal);
this.ActionButton.TouchUpInside += (s, e) =>
{
// there is a chance that user doesn't want to do anything here, he simply wants to dismiss
ActionBlock?.Invoke(this);
Dismiss();
};
this.AddSubview(this.ActionButton);
this.SecondActionButton = new UIButton
{
TranslatesAutoresizingMaskIntoConstraints = false,
BackgroundColor = UIColor.Clear
};
this.SecondActionButton.TitleLabel.Font = UIFont.BoldSystemFontOfSize(14);
this.SecondActionButton.TitleLabel.AdjustsFontSizeToFitWidth = true;
this.SecondActionButton.SetTitleColor(UIColor.White, UIControlState.Normal);
this.SecondActionButton.TouchUpInside += (s, e) =>
{
SecondActionBlock?.Invoke(this);
Dismiss();
};
this.AddSubview(this.SecondActionButton);
this.seperateView = new UIView
{
TranslatesAutoresizingMaskIntoConstraints = false,
BackgroundColor = UIColor.Gray
};
this.AddSubview(this.seperateView);
// Add constraints
var hConstraints = NSLayoutConstraint.FromVisualFormat(
"H:|-0-[iconImageView]-2-[messageLabel]-2-[seperateView(0.5)]-2-[actionButton(>=44@999)]-0-[secondActionButton(>=44@999)]-0-|",
0,
new NSDictionary(),
NSDictionary.FromObjectsAndKeys(
new NSObject[] {
IconImageView,
MessageLabel,
seperateView,
ActionButton,
SecondActionButton
},
new NSObject[] {
new NSString("iconImageView"),
new NSString("messageLabel"),
new NSString("seperateView"),
new NSString("actionButton"),
new NSString("secondActionButton")
}
)
);
var vConstraintsForIconImageView = NSLayoutConstraint.FromVisualFormat(
"V:|-2-[iconImageView]-2-|", 0, new NSDictionary(), NSDictionary.FromObjectsAndKeys(new NSObject[] { IconImageView }, new NSObject[] { new NSString("iconImageView") })
);
var vConstraintsForMessageLabel = NSLayoutConstraint.FromVisualFormat(
"V:|-0-[messageLabel]-0-|", 0, new NSDictionary(), NSDictionary.FromObjectsAndKeys(new NSObject[] { MessageLabel }, new NSObject[] { new NSString("messageLabel") })
);
var vConstraintsForSeperateView = NSLayoutConstraint.FromVisualFormat(
"V:|-4-[seperateView]-4-|", 0, new NSDictionary(), NSDictionary.FromObjectsAndKeys(new NSObject[] { seperateView }, new NSObject[] { new NSString("seperateView") })
);
var vConstraintsForActionButton = NSLayoutConstraint.FromVisualFormat(
"V:|-0-[actionButton]-0-|", 0, new NSDictionary(), NSDictionary.FromObjectsAndKeys(new NSObject[] { ActionButton }, new NSObject[] { new NSString("actionButton") })
);
var vConstraintsForSecondActionButton = NSLayoutConstraint.FromVisualFormat(
"V:|-0-[secondActionButton]-0-|", 0, new NSDictionary(), NSDictionary.FromObjectsAndKeys(new NSObject[] { SecondActionButton }, new NSObject[] { new NSString("secondActionButton") })
);
iconImageViewWidthConstraint = NSLayoutConstraint.Create(IconImageView, NSLayoutAttribute.Width, NSLayoutRelation.Equal, null, NSLayoutAttribute.NoAttribute, 1, TTGSnackbar.snackbarIconImageViewWidth);
actionButtonWidthConstraint = NSLayoutConstraint.Create(ActionButton, NSLayoutAttribute.Width, NSLayoutRelation.Equal, null, NSLayoutAttribute.NoAttribute, 1, TTGSnackbar.snackbarActionButtonMinWidth);
secondActionButtonWidthConstraint = NSLayoutConstraint.Create(SecondActionButton, NSLayoutAttribute.Width, NSLayoutRelation.Equal, null, NSLayoutAttribute.NoAttribute, 1, TTGSnackbar.snackbarActionButtonMinWidth);
//var vConstraintsForActivityIndicatorView = NSLayoutConstraint.FromVisualFormat(
//"V:|-2-[activityIndicatorView]-2-|", 0,new NSDictionary(), NSDictionary.FromObjectsAndKeys(new NSObject[] { activityIndicatorView }, new NSObject[] { new NSString("activityIndicatorView") })
//);
//todo fix constraint
//var hConstraintsForActivityIndicatorView = NSLayoutConstraint.FromVisualFormat(
// //"H:[activityIndicatorView(activityIndicatorWidth)]-2-|",
// "H:[activityIndicatorView]-2-|",
// 0,
// new NSDictionary(),
// NSDictionary.FromObjectsAndKeys(
// new NSObject[] { activityIndicatorView },
// new NSObject[] { new NSString("activityIndicatorView") })
// //NSDictionary.FromObjectsAndKeys(new NSObject[] { activityIndicatorView }, new NSObject[] { })
//);
IconImageView.AddConstraint(iconImageViewWidthConstraint);
ActionButton.AddConstraint(actionButtonWidthConstraint);
SecondActionButton.AddConstraint(secondActionButtonWidthConstraint);
this.AddConstraints(hConstraints);
this.AddConstraints(vConstraintsForIconImageView);
this.AddConstraints(vConstraintsForMessageLabel);
this.AddConstraints(vConstraintsForSeperateView);
this.AddConstraints(vConstraintsForActionButton);
this.AddConstraints(vConstraintsForSecondActionButton);
//this.AddConstraints(vConstraintsForActivityIndicatorView);
//this.AddConstraints(hConstraintsForActivityIndicatorView);
}
private void UpdateImage(string imageName, int widthRequest, int heightRequest, UIButton targetButton)
{
var assembly = typeof(App).GetTypeInfo().Assembly;
UIImage image = null;
if (imageName != null)
{
try
{
image = UIImage.FromResource(assembly, imageName);
}
catch (Exception)
{
var path = PCLStorage.FileSystem.Current.LocalStorage.Path;
var iPath = PCLStorage.PortablePath.Combine(path, imageName);
image = UIImage.FromFile(iPath);
}
}
var imageView = new UIImageView();
var widthCt = NSLayoutConstraint.Create(imageView, NSLayoutAttribute.Width, NSLayoutRelation.Equal, null, NSLayoutAttribute.NoAttribute, 1, widthRequest);
var heightCt = NSLayoutConstraint.Create(imageView, NSLayoutAttribute.Height, NSLayoutRelation.Equal, null, NSLayoutAttribute.NoAttribute, 1, heightRequest);
imageView.AddConstraint(widthCt);
imageView.AddConstraint(heightCt);
imageView.TranslatesAutoresizingMaskIntoConstraints = false;
imageView.Image = image;
imageView.ContentMode = UIViewContentMode.ScaleAspectFit;
targetButton.AddSubview(imageView);
switch (ImageButton.Orientation)
{
case TextAligment.Left:
{
targetButton.TitleEdgeInsets = new UIEdgeInsets(0, 20, 0, 0);
targetButton.HorizontalAlignment = UIControlContentHorizontalAlignment.Left;
}
break;
case TextAligment.Top:
{
targetButton.TitleEdgeInsets = new UIEdgeInsets(5, 0, 0, 0);
targetButton.VerticalAlignment = UIControlContentVerticalAlignment.Top;
}
break;
case TextAligment.Right:
{
var yCenterCt = NSLayoutConstraint.Create(imageView, NSLayoutAttribute.CenterY, NSLayoutRelation.Equal, targetButton, NSLayoutAttribute.CenterY, 1, 0);
var xLeftCt = NSLayoutConstraint.Create(imageView, NSLayoutAttribute.Left, NSLayoutRelation.Equal, targetButton, NSLayoutAttribute.Left, 1, 0);
targetButton.AddConstraint(yCenterCt);
targetButton.AddConstraint(xLeftCt);
targetButton.TitleEdgeInsets = new UIEdgeInsets(0, 0, 0, 20);
targetButton.HorizontalAlignment = UIControlContentHorizontalAlignment.Right;
}
break;
case TextAligment.Bottom:
{
var xCenterCt = NSLayoutConstraint.Create(imageView, NSLayoutAttribute.CenterX, NSLayoutRelation.Equal, targetButton, NSLayoutAttribute.CenterX, 1, 0);
var yTopCt = NSLayoutConstraint.Create(imageView, NSLayoutAttribute.Top, NSLayoutRelation.Equal, targetButton, NSLayoutAttribute.Top, 1, 0);
targetButton.AddConstraint(xCenterCt);
targetButton.AddConstraint(yTopCt);
targetButton.TitleEdgeInsets = new UIEdgeInsets(0, 0, 5, 0);
targetButton.VerticalAlignment = UIControlContentVerticalAlignment.Bottom;
}
break;
default:
throw new InvalidOperationException();
}
}
/// <summary>
/// Configure this instance.
/// </summary>
private void configure()
{
this.TranslatesAutoresizingMaskIntoConstraints = false;
this.BackgroundColor = UIColor.DarkGray;
this.Layer.CornerRadius = CornerRadius;
this.Layer.MasksToBounds = true;
IconImageView = new UIImageView();
IconImageView.TranslatesAutoresizingMaskIntoConstraints = false;
IconImageView.BackgroundColor = UIColor.Clear;
IconImageView.ContentMode = IconContentMode;
this.AddSubview(IconImageView);
MessageLabel = new UILabel();
MessageLabel.TranslatesAutoresizingMaskIntoConstraints = false;
MessageLabel.TextColor = UIColor.White;
MessageLabel.Font = MessageTextFont;
MessageLabel.BackgroundColor = UIColor.Clear;
MessageLabel.LineBreakMode = UILineBreakMode.CharacterWrap;
MessageLabel.Lines = 2;
MessageLabel.TextAlignment = UITextAlignment.Left;
MessageLabel.Text = Message;
this.AddSubview(MessageLabel);
ActionButton = new UIButton();
ActionButton.TranslatesAutoresizingMaskIntoConstraints = false;
ActionButton.Hidden = string.IsNullOrEmpty(ActionText);
ActionButton.BackgroundColor = UIColor.Clear;
ActionButton.TitleLabel.Font = ActionTextFont;
ActionButton.TitleLabel.AdjustsFontSizeToFitWidth = true;
ActionButton.SetTitle(ActionText, UIControlState.Normal);
ActionButton.SetTitleColor(ActionTextColor, UIControlState.Normal);
ActionButton.TouchUpInside += (s, e) =>
{
if (!ActionButton.Hidden && ActionButton.Title(UIControlState.Normal) != String.Empty && ActionButton != null)
{
ActionBlock(this);
dismissAnimated(true);
}
};
this.AddSubview(ActionButton);
SecondActionButton = new UIButton();
SecondActionButton.TranslatesAutoresizingMaskIntoConstraints = false;
SecondActionButton.BackgroundColor = UIColor.Clear;
SecondActionButton.TitleLabel.Font = SecondActionTextFont;
SecondActionButton.TitleLabel.AdjustsFontSizeToFitWidth = true;
SecondActionButton.SetTitle(SecondActionText, UIControlState.Normal);
SecondActionButton.SetTitleColor(SecondActionTextColor, UIControlState.Normal);
SecondActionButton.TouchUpInside += (s, e) =>
{
if (!SecondActionButton.Hidden && SecondActionButton.Title(UIControlState.Normal) != String.Empty && SecondActionBlock != null)
{
SecondActionBlock(this);
dismissAnimated(true);
}
};
this.AddSubview(SecondActionButton);
SeperateView = new UIView();
SeperateView.TranslatesAutoresizingMaskIntoConstraints = false;
SeperateView.BackgroundColor = UIColor.Gray;
this.AddSubview(SeperateView);
ActivityIndicatorView = new UIActivityIndicatorView(UIActivityIndicatorViewStyle.White);
ActivityIndicatorView.TranslatesAutoresizingMaskIntoConstraints = false;
ActivityIndicatorView.StopAnimating();
this.AddSubview(ActivityIndicatorView);
// Add constraints
invalidateHorizontalConstraints();
var vConstraintsForIconImageView = NSLayoutConstraint.FromVisualFormat(
"V:|-2-[iconImageView]-2-|", 0, new NSDictionary(), NSDictionary.FromObjectsAndKeys(new NSObject[] { IconImageView }, new NSObject[] { new NSString("iconImageView") })
);
var vConstraintsForMessageLabel = NSLayoutConstraint.FromVisualFormat(
"V:|-0-[messageLabel]-0-|", 0, new NSDictionary(), NSDictionary.FromObjectsAndKeys(new NSObject[] { MessageLabel }, new NSObject[] { new NSString("messageLabel") })
);
var vConstraintsForSeperateView = NSLayoutConstraint.FromVisualFormat(
"V:|-4-[seperateView]-4-|", 0, new NSDictionary(), NSDictionary.FromObjectsAndKeys(new NSObject[] { SeperateView }, new NSObject[] { new NSString("seperateView") })
);
var vConstraintsForActionButton = NSLayoutConstraint.FromVisualFormat(
"V:|-0-[actionButton]-0-|", 0, new NSDictionary(), NSDictionary.FromObjectsAndKeys(new NSObject[] { ActionButton }, new NSObject[] { new NSString("actionButton") })
);
var vConstraintsForSecondActionButton = NSLayoutConstraint.FromVisualFormat(
"V:|-0-[secondActionButton]-0-|", 0, new NSDictionary(), NSDictionary.FromObjectsAndKeys(new NSObject[] { SecondActionButton }, new NSObject[] { new NSString("secondActionButton") })
);
iconImageViewWidthConstraint = NSLayoutConstraint.Create(IconImageView, NSLayoutAttribute.Width, NSLayoutRelation.Equal, null, NSLayoutAttribute.NoAttribute, 1, TTGSnackbar.snackbarIconImageViewWidth);
actionButtonWidthConstraint = NSLayoutConstraint.Create(ActionButton, NSLayoutAttribute.Width, NSLayoutRelation.Equal, null, NSLayoutAttribute.NoAttribute, 1, TTGSnackbar.snackbarActionButtonMinWidth);
secondActionButtonWidthConstraint = NSLayoutConstraint.Create(SecondActionButton, NSLayoutAttribute.Width, NSLayoutRelation.Equal, null, NSLayoutAttribute.NoAttribute, 1, TTGSnackbar.snackbarActionButtonMinWidth);
var vConstraintsForActivityIndicatorView = NSLayoutConstraint.FromVisualFormat(
"V:|-2-[activityIndicatorView]-2-|", 0, new NSDictionary(), NSDictionary.FromObjectsAndKeys(new NSObject[] { ActivityIndicatorView }, new NSObject[] { new NSString("activityIndicatorView") })
);
var hConstraintsForActivityIndicatorView = NSLayoutConstraint.FromVisualFormat(
"H:[activityIndicatorView]-2-|",
0,
new NSDictionary(),
NSDictionary.FromObjectsAndKeys(
new NSObject[] { ActivityIndicatorView },
new NSObject[] { new NSString("activityIndicatorView") })
);
IconImageView.AddConstraint(iconImageViewWidthConstraint);
ActionButton.AddConstraint(actionButtonWidthConstraint);
SecondActionButton.AddConstraint(secondActionButtonWidthConstraint);
this.AddConstraints(hConstraints);
this.AddConstraints(vConstraintsForIconImageView);
this.AddConstraints(vConstraintsForMessageLabel);
this.AddConstraints(vConstraintsForSeperateView);
this.AddConstraints(vConstraintsForActionButton);
this.AddConstraints(vConstraintsForSecondActionButton);
this.AddConstraints(vConstraintsForActivityIndicatorView);
this.AddConstraints(hConstraintsForActivityIndicatorView);
}
private void UpdateImage(string imageName, int widthRequest, int heightRequest, UIButton targetButton)
{
var assembly = typeof(App).GetTypeInfo().Assembly;
UIImage image = null;
if (imageName != null)
{
try
{
image = UIImage.FromResource(assembly, imageName);
}
catch (Exception)
{
var path = PCLStorage.FileSystem.Current.LocalStorage.Path;
var iPath = PCLStorage.PortablePath.Combine(path, imageName);
image = UIImage.FromFile(iPath);
}
}
var imageView = new UIImageView();
var widthCt = NSLayoutConstraint.Create(imageView, NSLayoutAttribute.Width, NSLayoutRelation.Equal, null, NSLayoutAttribute.NoAttribute, 1, widthRequest);
var heightCt = NSLayoutConstraint.Create(imageView, NSLayoutAttribute.Height, NSLayoutRelation.Equal, null, NSLayoutAttribute.NoAttribute, 1, heightRequest);
imageView.AddConstraint(widthCt);
imageView.AddConstraint(heightCt);
imageView.TranslatesAutoresizingMaskIntoConstraints = false;
imageView.Image = image;
imageView.ContentMode = UIViewContentMode.ScaleAspectFit;
targetButton.AddSubview(imageView);
switch (ImageButton.Orientation)
{
case TextAligment.Left:
{
targetButton.TitleEdgeInsets = new UIEdgeInsets(0, 20, 0, 0);
targetButton.HorizontalAlignment = UIControlContentHorizontalAlignment.Left;
}
break;
case TextAligment.Top:
{
targetButton.TitleEdgeInsets = new UIEdgeInsets(5, 0, 0, 0);
targetButton.VerticalAlignment = UIControlContentVerticalAlignment.Top;
}
break;
case TextAligment.Right:
{
var yCenterCt = NSLayoutConstraint.Create(imageView, NSLayoutAttribute.CenterY, NSLayoutRelation.Equal, targetButton, NSLayoutAttribute.CenterY, 1, 0);
var xLeftCt = NSLayoutConstraint.Create(imageView, NSLayoutAttribute.Left, NSLayoutRelation.Equal, targetButton, NSLayoutAttribute.Left, 1, 0);
targetButton.AddConstraint(yCenterCt);
targetButton.AddConstraint(xLeftCt);
targetButton.TitleEdgeInsets = new UIEdgeInsets(0, 0, 0, 20);
targetButton.HorizontalAlignment = UIControlContentHorizontalAlignment.Right;
}
break;
case TextAligment.Bottom:
{
var xCenterCt = NSLayoutConstraint.Create(imageView, NSLayoutAttribute.CenterX, NSLayoutRelation.Equal, targetButton, NSLayoutAttribute.CenterX, 1, 0);
var yTopCt = NSLayoutConstraint.Create(imageView, NSLayoutAttribute.Top, NSLayoutRelation.Equal, targetButton, NSLayoutAttribute.Top, 1, 0);
targetButton.AddConstraint(xCenterCt);
targetButton.AddConstraint(yTopCt);
targetButton.TitleEdgeInsets = new UIEdgeInsets(0, 0, 5, 0);
targetButton.VerticalAlignment = UIControlContentVerticalAlignment.Bottom;
}
break;
default:
throw new InvalidOperationException();
}
}