public GridViewCell GridViewCellForItemAtIndex(GridView gridView, int index)
{
SizeF size = GridViewSizeForItemsInInterfaceOrientation(gridView,UIApplication.SharedApplication.StatusBarOrientation);
GridViewCell cell = gridView.DequeueReusableCell();
if (cell==null)
{
cell = new GridViewCell();
cell.DeleteButtonIcon=null;
cell.DeleteButtonOffset=new PointF(-15, -15);
UIView view = new UIView(new RectangleF(0,0,size.Width,size.Height));
view.BackgroundColor = UIColor.Red;
view.Layer.MasksToBounds = false;
view.Layer.CornerRadius = 8;
cell.ContentView = view;
}
else
{
RectangleF f = cell.Frame;
f.Size = size;
cell.Frame = f;
cell.Alpha = 1.0f;
}
cell.RemoveContentViewSubviews();
UILabel label = new UILabel(cell.ContentView.Bounds);
label.AutoresizingMask = UIViewAutoresizing.FlexibleWidth | UIViewAutoresizing.FlexibleHeight;
label.Text = currentData[index];
label.TextAlignment = UITextAlignment.Center;
label.BackgroundColor = UIColor.Clear;
label.TextColor = UIColor.Black;
label.HighlightedTextColor = UIColor.White;
label.Font = UIFont.BoldSystemFontOfSize(20.0f);
cell.ContentView.AddSubview(label);
return cell;
}
public bool GridViewShouldAllowShakingBehaviorWhenMovingCell(GridView gridView, GridViewCell view, int index)
{
return true;
}
public SizeF GridViewSizeInFullSizeForCell(GridView gridView, GridViewCell cell, int index, UIInterfaceOrientation orientation)
{
if (GridViewConstants.IsIphone)
{
if (orientation.IsLandscape())
{
return new SizeF(320, 210);
}
else
{
return new SizeF(300, 310);
}
}
else
{
if (orientation.IsLandscape())
{
return new SizeF(700, 530);
}
else
{
return new SizeF(600, 500);
}
}
}
public void GridViewDidStartTransformingCell(GridView gridView, GridViewCell cell)
{
UIView.Animate(0.5,0,UIViewAnimationOptions.AllowUserInteraction,
delegate
{
cell.ContentView.BackgroundColor = UIColor.Blue;
cell.ContentView.Layer.ShadowOpacity = 0.7f;
},
delegate
{
});
}
public UIView GridViewFullSizeViewForCell(GridView gridView, GridViewCell cell, int index)
{
UIView fullView = new UIView(new RectangleF());
fullView.BackgroundColor = UIColor.Yellow;
fullView.Layer.MasksToBounds = false;
fullView.Layer.CornerRadius = 8.0f;
SizeF size = GridViewSizeInFullSizeForCell(gridView,cell,index,UIApplication.SharedApplication.StatusBarOrientation);
fullView.Bounds = new RectangleF(0, 0, size.Width, size.Height);
UILabel label = new UILabel(fullView.Bounds);
label.Text = String.Format("Fullscreen View for cell at index {0}", index);
label.TextAlignment = UITextAlignment.Center;
label.BackgroundColor = UIColor.Clear;
label.AutoresizingMask = UIViewAutoresizing.FlexibleWidth | UIViewAutoresizing.FlexibleHeight;
if (GridViewConstants.IsIphone)
{
label.Font = UIFont.BoldSystemFontOfSize(15.0f);
}
else
{
label.Font = UIFont.BoldSystemFontOfSize(20.0f);
}
fullView.AddSubview(label);
return fullView;
}
public void GridViewDidEndMovingCell(GridView gridView, GridViewCell cell)
{
UIView.Animate(0.3,0,UIViewAnimationOptions.AllowUserInteraction,
delegate
{
cell.ContentView.BackgroundColor = UIColor.Red;
cell.ContentView.Layer.ShadowOpacity = 0;
},
delegate
{
});
}
public void GridViewDidEnterFullSizeForCell(GridView gridView, GridViewCell cell)
{
}
private void TransformingGestureDidBeginAtPosition(int position)
{
transformingItem = CellForItemAtIndex(position);
if (transformingItem==null)
return;
RectangleF frameInMainView = ConvertRectToView(transformingItem.Frame,mainSuperView);
transformingItem.RemoveFromSuperview();
transformingItem.Frame = mainSuperView.Bounds;
transformingItem.AutoresizingMask = UIViewAutoresizing.FlexibleWidth | UIViewAutoresizing.FlexibleHeight;
transformingItem.ContentView.Frame = frameInMainView;
mainSuperView.AddSubview(transformingItem);
mainSuperView.BringSubviewToFront(transformingItem);
transformingItem.FullSize = transformDelegate.GridViewSizeInFullSizeForCell(this,transformingItem,position,UIApplication.SharedApplication.StatusBarOrientation);
transformingItem.FullSizeView = transformDelegate.GridViewFullSizeViewForCell(this,transformingItem,position);
transformDelegate.GridViewDidStartTransformingCell(this,transformingItem);
}
public void DisplayFullScreenForPosition(int position)
{
if (transformingItem!=null)
{
transformingItem.SwitchToFullSizeMode(false);
transformDelegate.GridViewDidEndTransformingCell(this,transformingItem);
transformingItem=null;
ReloadData();
}
TransformingGestureDidBeginAtPosition(position);
TransformingGestureDidEnd();
}
void SortingMoveDidStopAtPoint(PointF point)
{
sortMovingItem.Shake(false);
sortMovingItem.Tag = sortFuturePosition + kTagOffset;
RectangleF frameInScroll = mainSuperView.ConvertRectToView(sortMovingItem.Frame,this);
sortMovingItem.RemoveFromSuperview();
sortMovingItem.Frame=frameInScroll;
AddSubview(sortMovingItem);
PointF newOrigin = layoutStrategy.OriginForItemAtPosition(sortFuturePosition);
RectangleF newFrame = new RectangleF(newOrigin.X, newOrigin.Y, itemSize.Width, itemSize.Height);
UIView.Animate(kDefaultAnimationDuration,0,0,
delegate
{
sortMovingItem.Transform = CGAffineTransform.MakeIdentity();
sortMovingItem.Frame = newFrame;
},
delegate
{
if (sortingDelegate!=null)
{
sortingDelegate.GridViewDidEndMovingCell(this,sortMovingItem);
}
sortMovingItem = null;
sortFuturePosition = GMGV_INVALID_POSITION;
SetSubviewsCacheAsInvalid();
});
}
void SortingMoveDidStartAtPoint(PointF point)
{
int position = layoutStrategy.ItemPositionFromLocation(point);
GridViewCell item = CellForItemAtIndex(position);
BringSubviewToFront(item);
sortMovingItem = item;
RectangleF frameInMainView = ConvertRectToView(sortMovingItem.Frame,mainSuperView);
sortMovingItem.RemoveFromSuperview();
sortMovingItem.Frame = frameInMainView;
mainSuperView .AddSubview(sortMovingItem);
sortFuturePosition = sortMovingItem.Tag - kTagOffset;
sortMovingItem.Tag = 0;
if (sortingDelegate!=null)
{
sortingDelegate.GridViewDidStartMovingCell(this,sortMovingItem);
}
if (sortingDelegate!=null)
{
sortMovingItem.Shake(sortingDelegate.GridViewShouldAllowShakingBehaviorWhenMovingCell(this,sortMovingItem,position));
}
else
{
sortMovingItem.Shake(true);
}
}
private void QueueReusableCell(GridViewCell cell)
{
if (cell!=null)
{
cell.PrepareForReuse();
cell.Alpha = 1;
cell.BackgroundColor = UIColor.Clear;
reusableCells.Add(cell);
}
}
private int PositionForItemSubview(GridViewCell view)
{
return view.Tag >= kTagOffset ? view.Tag - kTagOffset : GMGV_INVALID_POSITION;
}
public void TransformingGestureDidFinish()
{
if (IsInTransformingState)
{
if (lastScale > 2 && !inTransformingState)
{
TransformingGestureDidEnd();
}
else if (!inTransformingState)
{
lastRotation = 0;
lastScale = 1.0f;
GridViewCell transformingView = transformingItem;
transformingItem = null;
int position = PositionForItemSubview(transformingView);
PointF origin = layoutStrategy.OriginForItemAtPosition(position);
RectangleF finalFrameInScroll = new RectangleF(origin.X, origin.Y, itemSize.Width, itemSize.Height);
RectangleF finalFrameInSuperview = ConvertRectToView(finalFrameInScroll,mainSuperView);
transformingView.SwitchToFullSizeMode(false);
transformingView.AutoresizingMask = UIViewAutoresizing.None;
UIView.Animate(kDefaultAnimationDuration,0,kDefaultAnimationOptions,
delegate
{
transformingView.ContentView.Transform = CGAffineTransform.MakeIdentity();
transformingView.ContentView.Frame = finalFrameInSuperview;
transformingView.BackgroundColor = UIColor.Clear;
},
delegate
{
transformingView.RemoveFromSuperview();
transformingView.Frame=finalFrameInScroll;
transformingView.ContentView.Frame = transformingView.Bounds;
AddSubview(transformingView);
transformingView.FullSizeView = null;
inFullSizeMode = false;
transformDelegate.GridViewDidEndTransformingCell(this,transformingView);
// Transfer the gestures back
AddGestureRecognizer(pinchGesture);
AddGestureRecognizer(rotationGesture);
AddGestureRecognizer(panGesture);
});
}
}
}
