public override void ViewDidLoad()
{
base.ViewDidLoad();
Title = "Stacking";
int amount = 15;
int max = amount * amount;
int color = 255;
int colorSteps = (int) Math.Floor((double)(255 / max));
// In this case we work with as scrollview
_scrollview = new UIScrollView();
ConstraintHelper.Attach(_scrollview).Top().Right().Bottom().Left();
// We get us a new constraint helper to work with the scroll view as parent
var scrollViewConstraintHelper = new ConstraintHelper(_scrollview);
// Stacking makes it easier to position elements around each other without needing them to know
// it works exactly the same way as AboveOf, BelowOf, LeftOf and RightOf
for (int i = 1; i < max + 1; i++) {
scrollViewConstraintHelper
.Attach(new UIView { BackgroundColor = UIColor.FromRGB(color, color, color) })
.WidthOfParent((float)1 / amount)
.HeightFromWidth()
.Top()
.Left()
.StackLeft(); // makes next call of Left behave like LeftOf currrent item
if(i % amount == 0) {
scrollViewConstraintHelper
.StackTop() // makes next call of Top behave like LeftOf currrent item
.ResetLeftStack(); // afterwards Left will position according to parents left
}
color -= colorSteps;
}
// Since we use a scroll view, it is important to set a bottom constraint
// for the last element otherwise scrolling will not work
scrollViewConstraintHelper.Bottom(); // we still work on the last attached element
}
public override void ViewDidLoad()
{
base.ViewDidLoad();
View.BackgroundColor = UIColor.White;
ConstraintHelper = new ConstraintHelper(View);
}