public static void SetToolbarPlacement(BindableObject element, ToolbarPlacement value)
{
if (element.IsSet(ToolbarPlacementProperty) && GetToolbarPlacement(element) != value)
{
throw new InvalidOperationException("Changing the tabs placement after it's been set is not supported.");
}
element.SetValue(ToolbarPlacementProperty, value);
}
static void UpdateToolbarPlacement(CommandBar toolbar, ToolbarPlacement toolbarPlacement, WBorder bottomCommandBarArea,
WBorder topCommandBarArea, WBorder titleArea)
{
// Figure out what's hosting the command bar right now
var current = toolbar.Parent as WBorder;
// And figure out where it should be
WBorder target;
switch (toolbarPlacement)
{
case ToolbarPlacement.Top:
target = topCommandBarArea;
break;
case ToolbarPlacement.Bottom:
target = bottomCommandBarArea;
break;
case ToolbarPlacement.Default:
default:
target = Device.Idiom == TargetIdiom.Phone ? bottomCommandBarArea : topCommandBarArea;
break;
}
if (current == null || target == null || current == target)
{
return;
}
// Remove the command bar from its current host and add it to the new one
current.Child = null;
target.Child = toolbar;
if (titleArea != null)
{
if (target == bottomCommandBarArea)
{
// If the title is hosted in the command bar and we're moving the command bar to the bottom,
// put the title into the topCommandBarArea
toolbar.Content = null;
topCommandBarArea.Child = titleArea;
}
else
{
// Put the title back into the command bar
toolbar.Content = titleArea;
}
}
}
public static void UpdateToolbarPlacement(CommandBar toolbar, ToolbarPlacement toolbarPlacement, Border bottomCommandBarArea, Border topCommandBarArea)
{
if (toolbar == null || bottomCommandBarArea == null || topCommandBarArea == null)
{
// Haven't applied the template yet, so we're not ready to do this
return;
}
// Figure out what's hosting the command bar right now
var current = toolbar.Parent as Border;
// And figure out where it should be
Border target;
switch (toolbarPlacement)
{
case ToolbarPlacement.Top:
target = topCommandBarArea;
break;
case ToolbarPlacement.Bottom:
target = bottomCommandBarArea;
break;
case ToolbarPlacement.Default:
default:
target = Device.Idiom == TargetIdiom.Phone ? bottomCommandBarArea : topCommandBarArea;
break;
}
if (current == null || target == null || current == target)
{
return;
}
// Remove the command bar from its current host and add it to the new one
current.Child = null;
target.Child = toolbar;
}
public static IPlatformElementConfiguration <Android, FormsElement> SetToolbarPlacement(this IPlatformElementConfiguration <Android, FormsElement> config, ToolbarPlacement value)
{
SetToolbarPlacement(config.Element, value);
return(config);
}
public static IPlatformElementConfiguration <Windows, FormsElement> SetToolbarPlacement(
this IPlatformElementConfiguration <Windows, FormsElement> config, ToolbarPlacement value)
{
config.Element.SetValue(ToolbarPlacementProperty, value);
return(config);
}
public static void SetToolbarPlacement(BindableObject element, ToolbarPlacement toolbarPlacement)
{
element.SetValue(ToolbarPlacementProperty, toolbarPlacement);
}
