public void AddBaseElements(UIView mainView)
{
titleLabel = new UILabel(RectangleF.Empty);
titleLabel.TextAlignment = UITextAlignment.Center;
accessStatus = new UILabel(RectangleF.Empty);
accessStatus.TextAlignment = UITextAlignment.Center;
requestAccessButton = UIButton.FromType(UIButtonType.RoundedRect);
requestAccessButton.TouchUpInside += (s, e) => RequestAccess();
titleLabel.TranslatesAutoresizingMaskIntoConstraints = false;
accessStatus.TranslatesAutoresizingMaskIntoConstraints = false;
requestAccessButton.TranslatesAutoresizingMaskIntoConstraints = false;
// View-level constraints to set constant size values
titleLabel.AddConstraints(new [] {
NSLayoutConstraint.Create(titleLabel, NSLayoutAttribute.Height, NSLayoutRelation.Equal, null, NSLayoutAttribute.NoAttribute, 1, 14),
NSLayoutConstraint.Create(titleLabel, NSLayoutAttribute.Width, NSLayoutRelation.Equal, null, NSLayoutAttribute.NoAttribute, 1, 180),
});
accessStatus.AddConstraints(new[] {
NSLayoutConstraint.Create(accessStatus, NSLayoutAttribute.Height, NSLayoutRelation.Equal, null, NSLayoutAttribute.NoAttribute, 1, 18),
NSLayoutConstraint.Create(accessStatus, NSLayoutAttribute.Width, NSLayoutRelation.Equal, null, NSLayoutAttribute.NoAttribute, 1, 180),
});
requestAccessButton.AddConstraints(new[] {
NSLayoutConstraint.Create(requestAccessButton, NSLayoutAttribute.Height, NSLayoutRelation.Equal, null, NSLayoutAttribute.NoAttribute, 1, 14),
NSLayoutConstraint.Create(requestAccessButton, NSLayoutAttribute.Width, NSLayoutRelation.Equal, null, NSLayoutAttribute.NoAttribute, 1, 180),
});
mainView.AddSubview(titleLabel);
mainView.AddSubview(accessStatus);
mainView.AddSubview(requestAccessButton);
// Container view-level constraints to set the position of each subview
mainView.AddConstraints(new[] {
NSLayoutConstraint.Create(titleLabel, NSLayoutAttribute.CenterX, NSLayoutRelation.Equal, mainView, NSLayoutAttribute.CenterX, 1, 0),
NSLayoutConstraint.Create(titleLabel, NSLayoutAttribute.Top, NSLayoutRelation.Equal, mainView, NSLayoutAttribute.Top, 1, 80),
NSLayoutConstraint.Create(accessStatus, NSLayoutAttribute.CenterX, NSLayoutRelation.Equal, titleLabel, NSLayoutAttribute.CenterX, 1, 0),
NSLayoutConstraint.Create(accessStatus, NSLayoutAttribute.Top, NSLayoutRelation.Equal, titleLabel, NSLayoutAttribute.Bottom, 1, 40),
NSLayoutConstraint.Create(requestAccessButton, NSLayoutAttribute.CenterX, NSLayoutRelation.Equal, titleLabel, NSLayoutAttribute.CenterX, 1, 0),
NSLayoutConstraint.Create(requestAccessButton, NSLayoutAttribute.Top, NSLayoutRelation.Equal, accessStatus, NSLayoutAttribute.Bottom, 1, 40),
});
}
void AddStepsMessage()
{
stepsMessage = new UILabel(CGRect.Empty);
stepsMessage.TranslatesAutoresizingMaskIntoConstraints = false;
stepsMessage.Lines = 0;
stepsMessage.Font = UIFont.SystemFontOfSize(UIFont.SmallSystemFontSize);
this.View.AddSubview(stepsMessage);
stepsMessage.AddConstraints(new [] {
NSLayoutConstraint.Create(stepsMessage, NSLayoutAttribute.Height, NSLayoutRelation.Equal, null, NSLayoutAttribute.NoAttribute, 1, 56),
NSLayoutConstraint.Create(stepsMessage, NSLayoutAttribute.Width, NSLayoutRelation.Equal, null, NSLayoutAttribute.Width, 1, 300),
});
this.View.AddConstraints(new[] {
NSLayoutConstraint.Create(stepsMessage, NSLayoutAttribute.CenterX, NSLayoutRelation.Equal, titleLabel, NSLayoutAttribute.CenterX, 1, 0),
NSLayoutConstraint.Create(stepsMessage, NSLayoutAttribute.Top, NSLayoutRelation.Equal, requestAccessButton, NSLayoutAttribute.Bottom, 1, 40),
});
}