public override void ViewDidLoad()
{
base.ViewDidLoad();
var storyMenuItemImage = UIImage.FromFile("Images/AwesomeMenu/bg-menuitem.png");
var storyMenuItemImagePressed = UIImage.FromFile("Images/AwesomeMenu/bg-menuitem-highlighted.png");
var starImage = UIImage.FromFile("Images/AwesomeMenu/icon-star.png");
var starMenuItem1 = new MenuItem(storyMenuItemImage, storyMenuItemImagePressed, starImage);
var starMenuItem2 = new MenuItem(storyMenuItemImage, storyMenuItemImagePressed, starImage);
var starMenuItem3 = new MenuItem(storyMenuItemImage, storyMenuItemImagePressed, starImage);
var menu = new Menu(
this.View.Bounds,
UIImage.FromFile("Images/AwesomeMenu/bg-addbutton.png"),
UIImage.FromFile("Images/AwesomeMenu/bg-addbutton-highlighted.png"),
UIImage.FromFile("Images/AwesomeMenu/icon-plus.png"),
UIImage.FromFile("Images/AwesomeMenu/icon-plus-highlighted.png")
);
menu.MenuItems.AddRange(new[] { starMenuItem1, starMenuItem2, starMenuItem3 });
menu.MenuItemSelected += (sender, e) => Console.WriteLine(e.Selected);
menu.BackgroundColor = UIColor.White;
this.View.AddSubview(menu);
}
public Menu(RectangleF frame, UIImage image, UIImage highlightImage, UIImage contentImage, UIImage highlightContentImage) : base(frame)
{
this.BackgroundColor = UIColor.Clear;
this.Mode = LayoutMode.Radial;
this.NearRadius = MenuDefaults.NearRadius;
this.EndRadius = MenuDefaults.EndRadius;
this.FarRadius = MenuDefaults.FarRadius;
this.TimeOffset = MenuDefaults.TimeOffset;
this.RotateAngle = MenuDefaults.RotateAngle;
this.MenuWholeAngle = (float)MenuDefaults.MenuWholeAngle;
this.StartPoint = new PointF(MenuDefaults.StartPointX, MenuDefaults.StartPointY);
this.ExpandRotation = (float)MenuDefaults.ExpandRotation;
this.CloseRotation = (float)MenuDefaults.CloseRotation;
this.menuItems = new List<MenuItem>();
this.addButton = new MenuItem(image, highlightImage, contentImage, highlightContentImage);
this.addButton.Center = this.StartPoint;
this.addButton.Touched += (sender, e) => this.Expanded = !this.Expanded;
this.AddSubview(this.addButton);
}
private void LayoutMenuItemRadial(MenuItem item, int index, int count, float step)
{
var endPoint = new PointF(this.StartPoint.X + (this.EndRadius - step) * (float)Math.Sin(index * this.MenuWholeAngle / count),
this.StartPoint.Y - (this.EndRadius - step) * (float)Math.Cos(index * this.MenuWholeAngle / count));
item.EndPoint = RotateCGPointAroundCenter(endPoint, this.StartPoint, this.RotateAngle);
var nearPoint = new PointF(this.StartPoint.X + (this.NearRadius - step) * (float)Math.Sin(index * this.MenuWholeAngle / count),
this.StartPoint.Y - (this.NearRadius - step) * (float)Math.Cos(index * this.MenuWholeAngle / count));
item.NearPoint = RotateCGPointAroundCenter(nearPoint, this.StartPoint, this.RotateAngle);
var farPoint = new PointF(this.StartPoint.X + (this.FarRadius - step) * (float)Math.Sin(index * this.MenuWholeAngle / count),
this.StartPoint.Y - (this.FarRadius - step) * (float)Math.Cos(index * this.MenuWholeAngle / count));
item.FarPoint = RotateCGPointAroundCenter(farPoint, this.StartPoint, this.RotateAngle);
}
private void LayoutMenuItemVertical(MenuItem item, int index, int count, float step)
{
var endPoint = new PointF(this.StartPoint.X, this.StartPoint.Y + (this.EndRadius - step));
item.EndPoint = RotateCGPointAroundCenter(endPoint, this.StartPoint, this.RotateAngle);
var nearPoint = new PointF(this.StartPoint.X, this.StartPoint.Y + (this.NearRadius - step));
item.NearPoint = RotateCGPointAroundCenter(nearPoint, this.StartPoint, this.RotateAngle);
var farPoint = new PointF(this.StartPoint.X, this.StartPoint.Y + (this.FarRadius - step));
item.FarPoint = RotateCGPointAroundCenter(farPoint, this.StartPoint, this.RotateAngle);
}
private void AwesomeMenuItemTouchesEnd(MenuItem item)
{
if (item == this.addButton)
{
return;
}
CAAnimationGroup blowup = this.BlowupAnimationAtPoint(item.Center);
item.Layer.AddAnimation(blowup, "blowup");
item.Center = item.StartPoint;
for (int i = 0; i < this.MenuItems.Count; i++)
{
MenuItem otherItem = this.MenuItems[i];
CAAnimationGroup shrink = this.ShrinkAnimationAtPoint(otherItem.Center);
if (otherItem.MenuTag == item.MenuTag)
{
continue;
}
otherItem.Layer.AddAnimation(shrink, "shrink");
otherItem.Center = otherItem.StartPoint;
}
this.expanded = false;
float angle = this.Expanded ? - (float)Math.PI / 4 : 0.0f;
UIView.Animate(0.2f, () =>
{
this.addButton.Transform = CGAffineTransform.MakeRotation(angle);
});
var handler = this.MenuItemSelected;
if (handler != null)
{
handler(this, new MenuItemSelectedEventArgs(item.MenuTag - 1000));
}
}