/// <summary>
/// 设置按钮组的选中按钮
/// </summary>
/// <param name="group">按钮组名称</param>
/// <param name="selectType">选中默认按钮，还是上次离开按钮</param>
public void SetGroupSelect(string group, EZUISelectType selectType = EZUISelectType.Default)
{
switch (selectType)
{
case EZUISelectType.Default:
// 如果 DefaultSelect 不存在，则当前组件所在对象即为 DefaultSelect
if (!SelectGroup[group].DefaultSelect)
{
SelectGroup[group].DefaultSelect = SelectGroup[group].GetComponent <Selectable>();
}
EventSystem.current.SetSelectedGameObject(SelectGroup[group].DefaultSelect.gameObject);
break;
case EZUISelectType.Last:
if (SelectGroup[group].LastSelect)
{
EventSystem.current.SetSelectedGameObject(SelectGroup[group].LastSelect.gameObject);
}
else
{
// 如果 LastSelect 不存在，则使用 DefaultSelect
EventSystem.current.SetSelectedGameObject(SelectGroup[group].DefaultSelect.gameObject);
}
break;
}
}
/// <summary>
/// 返回上个按钮组
/// </summary>
/// <param name="selectType">选中默认按钮，还是上次离开按钮</param>
public void BackGroup(EZUISelectType selectType = EZUISelectType.Default)
{
int index = GroupList.Count - 2;
if (index >= 0)
{
string groupName = GroupList[index];
SwitchGroup(groupName, SelectGroup[groupName], selectType);
GroupList.RemoveAt(index);
}
else
{
ClearAllGroup();
}
}
/// <summary>
/// 切换按钮组
/// </summary>
/// <param name="group">按钮组名称</param>
/// <param name="select">选中按钮</param>
/// <param name="selectType">选中默认按钮，还是上次离开按钮；如果上次离开按钮不存在，则选中默认按钮</param>
public void SwitchGroup(string group, EZUISelect select, EZUISelectType selectType = EZUISelectType.Default)
{
// 1. 切换输入规则
EZInput.Instance.SwitchToUI();
// 2. 添加当前组
if (SelectGroup.ContainsKey(group))
{
// 防止对象已被清除，但Key仍在
if (!SelectGroup[group])
{
SelectGroup.Remove(group);
SelectGroup.Add(group, select);
}
}
else
{
SelectGroup.Add(group, select);
}
// 3. 在设置下个组前，先缓存当前组的 LastSelect
if (GroupList.Count > 0)
{
SelectGroup[GroupList.Last()].LastSelect =
EventSystem.current.currentSelectedGameObject.GetComponent <Selectable>();
}
// 4. 新组添加到最后
if (GroupList.Contains(group))
{
GroupList.Remove(group);
}
GroupList.Add(group);
// 5. 设置选中
SetGroupSelect(group, selectType);
}
