void CreateNextFeatureButton()
{
featureIndex = ExampleFeature.SET_PARENT_HORIZONTAL_LAYOUT;
nextFeatureButton = new Button();
nextFeatureButton.ParentOrigin = ParentOrigin.BottomCenter;
nextFeatureButton.PivotPoint = PivotPoint.BottomCenter;
nextFeatureButton.PositionUsesPivotPoint = true;
nextFeatureButton.Text = "Set Horizontal Layout";
nextFeatureButton.Clicked += (sender, e) =>
{
NextFeature();
};
}
// Execute different features to test
public void NextFeature()
{
switch (featureIndex)
{
// Parent container assigned a layout after tree constructed.
// Children should now be laid out horizontally .
case ExampleFeature.SET_PARENT_HORIZONTAL_LAYOUT:
{
_parentContainer.Layout = createHbox();
nextFeatureButton.LabelText = "Add child with no layout";
featureIndex = ExampleFeature.ADD_CHILD_VIEW_WITH_NO_LAYOUT;
break;
}
// Add a View without a layout but with 2 children.
// 2 children will be overlapping.
case ExampleFeature.ADD_CHILD_VIEW_WITH_NO_LAYOUT:
{
_childView = new View();
for (var i = 0; i < 2; i++)
{
_childView.Add(CreateImageView("3rdSet"));
}
_imageViewContainer2.Add(_childView);
nextFeatureButton.LabelText = "Add linear layout to last added child";
featureIndex = ExampleFeature.ADD_LINEAR_LAYOUT_TO_LAST_ADDED_CHILD;
break;
}
// A horizontal layout added to the View that had no layout.
// It's children should now be laid out horizontally too.
case ExampleFeature.ADD_LINEAR_LAYOUT_TO_LAST_ADDED_CHILD:
{
LayoutingExample.GetToolbar().Add(helpButton);
_childView.Layout = createHbox();
LayoutingExample.GetWindow().Remove(nextFeatureButton);
break;
}
default:
{
break;
}
}
}
public override void Remove()
{
Window window = LayoutingExample.GetWindow();
if (helpImageView)
{
window.Remove(helpImageView);
helpImageView = null;
}
helpShowing = false;
LayoutingExample.GetToolbar().Remove(helpButton);
window.Remove(_parentContainer);
window.Remove(nextFeatureButton);
nextFeatureButton = null;
helpButton = null;
_parentContainer = null;
_imageViewContainer2 = null;
_childView = null;
featureIndex = ExampleFeature.SET_PARENT_VERTICAL_LAYOUT;
}
// Demonstrate a different feature depending on state
public void NextGridFeature()
{
switch (featureIndex)
{
case ExampleFeature.GRID_EXACT_WIDTH:
{
SetExactWidth();
nextFeatureButton.Text = "Set Child Margin";
featureIndex = ExampleFeature.ITEMS_WITH_MARGINS;
break;
}
case ExampleFeature.ITEMS_WITH_MARGINS:
{
AddMarginToItems();
featureIndex = ExampleFeature.GRID_MATCH_PARENT;
nextFeatureButton.Text = "Set width MATCH_PARENT";
break;
}
case ExampleFeature.GRID_MATCH_PARENT:
{
RemoveMarginsFromItems();
MatchParentOnWidth();
nextFeatureButton.Text = "Set width WRAP_CONTENT";
featureIndex = ExampleFeature.GRID_WRAP_CONTENT;
break;
}
case ExampleFeature.GRID_WRAP_CONTENT:
{
WrapContentOnWidth();
nextFeatureButton.Text = "Add item";
featureIndex = ExampleFeature.ADD_ITEMS;
break;
}
case ExampleFeature.ADD_ITEMS:
{
if (childItems.Count < MAX_NUMBER_OF_ITEMS)
{
AddItemsInteractively();
}
if (childItems.Count == MAX_NUMBER_OF_ITEMS)
{
// Remove button when no more items to add
featureIndex = ExampleFeature.CHANGE_TO_3_COLUMNS;
nextFeatureButton.Text = "Change Columns";
}
break;
}
case ExampleFeature.CHANGE_TO_3_COLUMNS:
{
ChangeTo3Columns();
featureIndex = ExampleFeature.GRID_EXACT_WIDTH;
Window window = LayoutingExample.GetWindow();
window.Remove(nextFeatureButton);
nextFeatureButton = null;
break;
}
default:
{
featureIndex = ExampleFeature.GRID_EXACT_WIDTH;
break;
}
}
}
