private void Splitter_Dragged(DraggableSeparator sender, double x, double y, double dx, double dy)
{
var curPos = (Orientation == StackOrientation.Vertical ? y : x);
var newPos = _lastPos - curPos;
if (Math.Abs(newPos) < MinDragLength)
{
return;
}
_lastPos = curPos;
if (!(sender.Parent is ResizableStackLayout resizableLayout))
{
return;
}
var layout = (Layout <View>)resizableLayout;
var diff = Math.Sign(newPos);
var index = base.Children.IndexOf(sender);
if (index <= 0 || index + 1 >= layout.Children.Count)
{
Debug.WriteLine("ResizableStackLayout: Illegal index - should never be here.");
return;
}
var leftChild = layout.Children[index - 1];
var rightChild = layout.Children[index + 1];
DiffWeight(leftChild, rightChild, diff);
}
private void InsertMissingSeparators()
{
var missingSeparators = new List <int>();
for (var i = 1; i < Children.Count; i++)
{
if (base.Children[i - 1] is DraggableSeparator)
{
continue;
}
if (!(base.Children[i] is DraggableSeparator))
{
missingSeparators.Add(i);
}
}
IEnumerable <int> en = missingSeparators;
foreach (var index in en.Reverse())
{
var sep = new DraggableSeparator {
Orientation = Orientation
};
//TODO: handle removing these elements when the page is closed
sep.DragStart += Splitter_DragStart;
sep.Dragged += Splitter_Dragged;
base.Children.Insert(index, sep);
}
}
private void Splitter_DragStart(DraggableSeparator sender, double x, double y)
{
_lastPos = Orientation == StackOrientation.Vertical ? y : x;
}
