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Welcome to the SharpConstraintLayout wiki! There have some document about api.

What is FluentConstraintSet/ConstraintSet

ConstraintSet record all descriptions of constraints, these constraints define the relationship between controls. ConstraintLayout according to these constraints to calculate size and position of controls.

FluentConstraintSet supply a fluent api for ConstraintSet.

You can only create constraints in code, if you want hotreload, you can create constraints in event like SizeChanged, c# hotreload will load it when size changed of view.

Process of using SharpConstraintLayout

• use new ConstraintLayout() create ConstraintLayout
• use AddElement() add control to ConstraintLayout
• use new FluentConstraintSet() create FluentConstraintSet
  • use Clone() from ConstraintLayout get old constraints and all controls id
  • use Select() select a control, then specify constraints for it, such as LeftToLeft(), if no params, mean left of control align with left of parent
  • use AppplyTo() apply FluentConstraintSet to ConstraintLayout

Key concepts

• Constraint

LeftToLeft TopToTop RightToRight..., What does these constraint mean? you can imagine it's a spring, constraintset.Select(button1).LeftToLeft(parent) like a spring connect left of button1 with left of parent, it let left of button1 align with left of parent. After set constraintset.Select(button1).(parent), that also have a spring connnect right of button1 with right of parent, so these two springs will let button1 at horizontal center of parent. If you set constraintset.Select(button1).Width(SizeBehavier.MatchConstraint), it will let button1 be stretched by springs.