void add_item_to_layout(ClassAndSubclasses parent_class, int level)
{
var name = parent_class.IsXamarinForms ? parent_class.Type.Name : parent_class.Type.FullName;
var info = parent_class.Type.GetTypeInfo();
if (info.IsGenericType)
{
var pas = info.GenericTypeParameters;
name = name.Substring(0, name.Length - 2);//去掉最后的"[]"
name += "<";
foreach (var p in pas)
{
name += p.Name + ",";
}
name = name.Substring(0, name.Length - 1) + ">";
}
//加上前置空格
name = new string(' ', level * 8) + name;
var clr = info.IsAbstract ? Color.Accent : Color.White;
var lbl = new Label()
{
TextColor = clr,
Text = name,
};
pal.Children.Add(lbl);
level++;
foreach (var child in parent_class.Subclasses)
{
add_item_to_layout(child, level);
}
}
void add_children_to_parent(ClassAndSubclasses parent_class, List <TypeInformation> types)
{
foreach (var t in types)
{
if (t.IsDevivedFrom(parent_class.Type))
{
var sub_class = new ClassAndSubclasses(t.Type, t.IsXamarinForms);
parent_class.Subclasses.Add(sub_class);
add_children_to_parent(sub_class, types);
}
}
}
public ClassHierarchyPage()
{
InitializeComponent();
var types = new List <TypeInformation>();
get_pulbic_type(typeof(View).GetTypeInfo().Assembly, types);
get_pulbic_type(typeof(Extensions).GetTypeInfo().Assembly, types);
int index = 0;
// Watch out! Loops through expanding classList!
do
{
// Get a child type from the list.
TypeInformation childType = types[index];
if (childType.Type != typeof(Object))
{
bool hasBaseType = false;
foreach (TypeInformation parentType in types)
{
if (childType.IsDevivedFrom(parentType.Type))
{
hasBaseType = true;
}
}
// If there's no base type, add it.
if (!hasBaseType && childType.BaseType != typeof(Object))
{
types.Add(new TypeInformation(childType.BaseType, false));
}
}
index++;
}while (index < types.Count);
types.Sort((t1, t2) => string.Compare(t1.Type.Name, t2.Type.Name));
var root = new ClassAndSubclasses(typeof(Object), false);
add_children_to_parent(root, types);
add_item_to_layout(root, 0);
}