private static Selectable GetNextSelectable(Selectable current, Vector3 dir)
{
Selectable next = current.FindSelectable(dir);
if (next == null)
{
next = current.FindLoopSelectable(-dir);
}
return(next);
}
public static Selectable FindLoopSelectable(this Selectable current, Vector3 dir)
{
Selectable first = current.FindSelectable(dir);
if (first != null)
{
current = first.FindLoopSelectable(dir);
}
return(current);
}
/// </summary>
/// 循环寻找下一个UI组件
/// <param name="current"></param>
/// <param name="dir"></param>
/// <returns></returns>
public static Selectable FindLoopSelectable(this Selectable current, Vector3 dir)
{
Selectable first = current.FindSelectable(dir); //用一个向量Vector3去寻找第一个Selectable
if (first != null) //如果下一个为null，用递归方法循环继续寻找第一个
{
current = first.FindLoopSelectable(dir);
}
return(current);
}