制作一个承载想法的东西（十）—— Lua侧的UI模块

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所属分类：Unity3d

参考模仿：smilehao/xlua-framework: Unity游戏纯lua客户端完整框架---基于xlua，整合tolua的proto-gen-lua以及各个lua库和工具类 (github.com)

在Lua侧实现了像Unity那样的组件的方式，有两个概念，组件和容器，基础的组件就类似Unity中继承了MonoBehaviour的脚本，基础容器就类似于Unity的GameObject上挂载着一管理自己和子物体组件的组件。所以容器有着组件的所有功能，并额外添加了获取组件的方法，lua侧认为为添加。

一、组件

在Unity中组件可以访问transform、gameobject，修改基础的显示隐藏、改变位置、改变旋转、改变缩放等等，所以基础的组件就可以仿照着实现这些获取和方法。

--[[
-- 组件基类：所有组件从这里继承
-- 说明：
-- 1、采用基于组件的设计方式，容器类负责管理和调度子组件，实现类似于Unity中挂载脚本的功能
-- 2、组件对应Unity原生的各种Component和Script，容器对应Unity原生的GameObject
-- 3、写逻辑时完全不需要关注脚本调度，在cs中脚本函数怎么调度的，这里就怎么调度，只是要注意接口变动，lua侧没有Get、Set访问器
-- 注意：
-- 1、Lua侧组件的名字并不总是和Unity侧组件名字同步，Lua侧组件名字会作为组件系统中组件的标识
-- 2、Lua侧组件名字会在组件创建时提取Unity侧组件名字，随后二者没有任何关联，Unity侧组件名字可以随便改
-- 3、虽然Unity侧组件名字随后可以随意改，但是不建议（有GC），此外Lua侧组件一旦创建，使用时全部以Lua侧名字为准
-- 5、需要定时刷新的界面，最好启用定时器、协程，界面需要刷新的频率一般较低，倒计时之类的只需要每秒钟更新一次即可
--]]

local setmetatable = setmetatable
local getmetatable = getmetatable
local assert = assert
local type = type
local rawget = rawget
local rawset = rawset

local M = Class("Frame.Base.BaseComponent")

local COMP_STATE_NONE = 0 
local COMP_STATE_ENABLE = 1
local COMP_STATE_DISABLE = 2


-- 构造函数：除非特殊情况，所有子类不要再写这个函数，初始化工作放Awake
-- 多种重载方式：
-- 1、ComponentTypeClass.New(relative_path)
-- 2、ComponentTypeClass.New(child_index)
-- 3、ComponentTypeClass.New(unity_gameObject)
-- 4、ComponentTypeClass.New(lua_component)
function M:ctor(holder, var_arg)
	-- 持有者 容器
	self.holder = holder
	-- 脚本绑定的transform
	self.transform = nil
	-- transform对应的gameObject
	self.gameObject = nil
	-- 名字：Unity中获取Transform的名字是有GC的，而Lua侧组件大量使用了名字，所以这里缓存下
	self.__name = nil
	-- 可变类型参数，用于重载
	self.__var_arg = var_arg

	self.enable_state = COMP_STATE_NONE
	self.active_state = nil

	--需要的时候再和c#交互，不需要一创建的时候就去获取
	local meta = getmetatable(self) or {}
  	setmetatable(self, {
        __index = function(t, k)
            local var = meta.__index[k]
            if var ~= nil then return var end

            if k == "transform" then
                local __var_arg = rawget(t, "__var_arg")
                local __holder = rawget(t, "holder")
                local value
                if type(__var_arg) == "string" then
                	value = __holder.transform:Find(__var_arg)
                elseif type(__var_arg) == "number" then
                	value = __holder.transform:GetChild(__var_arg)
                elseif type(__var_arg) == "userdata" then
                	value = __var_arg.transform
                elseif type(__var_arg) == "table" then
                	value = __var_arg.transform	
                	assert(value, "__var_arg must LuaObj")
                end
                rawset(t, k, value)
                return value

            elseif k == "gameObject" then
            	local transform = t.transform
            	if transform ~= nil then
               		local value = t.transform.gameObject
               		if value ~= nil then 
                		rawset(t, k, value)
               	 		return value
               	 	end
               	 end
            end
        end
    })
end

-- 创建
function M:Awake()
	--[[
	   创建组件时，如果传入的参数是string, 说明是指定路径，设置组件名为路径，如果不这样设置，两不同路径相同组件创建时将差别是重复
	]]
	if type(self.__var_arg) == "string" then
		self.__name = self.__var_arg
	else
		self.__name = self.gameObject.name
	end
end

--提供给容器调用 容器显示调用
function M:CallOnEnable(...)
	if self.enable_state == COMP_STATE_ENABLE then
		return
	end

	if not self:GetActive() then
		return
	end

	self.enable_state = COMP_STATE_ENABLE
	self:OnEnable(...)
end

-- 打开
function M:OnEnable(...)
	-- 启用更新函数
end

--提供给容器调用 容器隐藏调用
function M:CallOnDisable(...)
	if self.enable_state == COMP_STATE_DISABLE then
		return
	end

	if not self:GetActive() then
		return
	end
	self.enable_state = COMP_STATE_DISABLE
	self:OnDisable(...)
end

-- 关闭
function M:OnDisable(...)
	-- 禁用更新函数
end

function M:IsEnableState()
	return self.enable_state == COMP_STATE_ENABLE
end

function M:IsDisableState()
	return self.enable_state == COMP_STATE_DISABLE
end

-- 获取名字
function M:GetName()
	return self.__name
end

-- 设置名字
function M:SetName(name)
	if self.holder and self.holder.OnComponentSetName ~= nil then
		self.holder:OnComponentSetName(self, name)
	end
	self.__name = name
end

-- 激活、反激活
function M:SetActive(active, ...)
	if self.active_state == active then
		return
	end
	
	self.active_state = active
	if active then
		self.gameObject:SetActive(active)
		self.enable_param = {...}
		self.enable_state = COMP_STATE_ENABLE
		self:OnEnable(...)
	else
		self.gameObject:SetActive(active)
		self.disable_param = {...}
		self.enable_state = COMP_STATE_DISABLE
		self:OnDisable(...)
	end
end

-- 获取激活状态
function M:GetActive()
    if self.active_state == nil and self.gameObject then
	    return self.gameObject.activeSelf
    else
        return self.active_state
    end
end

--设置参考位置
function M:SetPosition( vec3 )
	self.transform.localPosition = vec3
end

--设置参考位置
function M:GetPosition( )
	return self.transform.localPosition
end

--设置世界坐标
function M:SetWorldPosition( vec3 )
	self.transform.position = vec3
end

--获取世界坐标
function M:GetWorldPosition(  )
	return self.transform.position
end

--设置旋转角度
function M:SetLocalEulerAngle( vec3 )
    self.transform.localEulerAngles = vec3
end

--设置缩放
function M:SetLocalScale( x, y, z )
    self.transform.localScale = Vector3.New(x, y, z or 1)
end

-- 析构函数
function M:dtor()
	if self.holder and type(self.holder) ~= "userdata" and self.holder.OnComponentDestroy ~= nil then
		--通知容器 组件销毁了
		self.holder:OnComponentDestroy(self)
	end
	self.holder = nil
	self.transform = nil
	self.gameObject = nil
	self.__name = nil

	self.enable_param = nil
	self.disable_param = nil
end

return M

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--[[

-- 组件基类：所有组件从这里继承

-- 说明：

-- 1、采用基于组件的设计方式，容器类负责管理和调度子组件，实现类似于Unity中挂载脚本的功能

-- 2、组件对应Unity原生的各种Component和Script，容器对应Unity原生的GameObject

-- 3、写逻辑时完全不需要关注脚本调度，在cs中脚本函数怎么调度的，这里就怎么调度，只是要注意接口变动，lua侧没有Get、Set访问器

-- 注意：

-- 1、Lua侧组件的名字并不总是和Unity侧组件名字同步，Lua侧组件名字会作为组件系统中组件的标识

-- 2、Lua侧组件名字会在组件创建时提取Unity侧组件名字，随后二者没有任何关联，Unity侧组件名字可以随便改

-- 3、虽然Unity侧组件名字随后可以随意改，但是不建议（有GC），此外Lua侧组件一旦创建，使用时全部以Lua侧名字为准

-- 5、需要定时刷新的界面，最好启用定时器、协程，界面需要刷新的频率一般较低，倒计时之类的只需要每秒钟更新一次即可

--]]

local setmetatable = setmetatable

local getmetatable = getmetatable

local assert = assert

local type = type

local rawget = rawget

local rawset = rawset

local M = Class("Frame.Base.BaseComponent")

local COMP_STATE_NONE = 0

local COMP_STATE_ENABLE = 1

local COMP_STATE_DISABLE = 2

-- 构造函数：除非特殊情况，所有子类不要再写这个函数，初始化工作放Awake

-- 多种重载方式：

-- 1、ComponentTypeClass.New(relative_path)

-- 2、ComponentTypeClass.New(child_index)

-- 3、ComponentTypeClass.New(unity_gameObject)

-- 4、ComponentTypeClass.New(lua_component)

function M:ctor(holder, var_arg)

-- 持有者容器

self.holder = holder

-- 脚本绑定的transform

self.transform = nil

-- transform对应的gameObject

self.gameObject = nil

-- 名字：Unity中获取Transform的名字是有GC的，而Lua侧组件大量使用了名字，所以这里缓存下

self.__name = nil

-- 可变类型参数，用于重载

self.__var_arg = var_arg

self.enable_state = COMP_STATE_NONE

self.active_state = nil

--需要的时候再和c#交互，不需要一创建的时候就去获取

local meta = getmetatable(self) or {}

setmetatable(self, {

__index = function(t, k)

local var = meta.__index[k]

if var ~= nil then return var end

if k == "transform" then

local __var_arg = rawget(t, "__var_arg")

local __holder = rawget(t, "holder")

local value

if type(__var_arg) == "string" then

value = __holder.transform:Find(__var_arg)

elseif type(__var_arg) == "number" then

value = __holder.transform:GetChild(__var_arg)

elseif type(__var_arg) == "userdata" then

value = __var_arg.transform

elseif type(__var_arg) == "table" then

value = __var_arg.transform

assert(value, "__var_arg must LuaObj")

end

rawset(t, k, value)

return value

elseif k == "gameObject" then

local transform = t.transform

if transform ~= nil then

local value = t.transform.gameObject

if value ~= nil then

rawset(t, k, value)

return value

end

})

end

-- 创建

function M:Awake()

--[[

创建组件时，如果传入的参数是string, 说明是指定路径，设置组件名为路径，如果不这样设置，两不同路径相同组件创建时将差别是重复

]]

if type(self.__var_arg) == "string" then

self.__name = self.__var_arg

else

self.__name = self.gameObject.name

end

--提供给容器调用容器显示调用

function M:CallOnEnable(...)

if self.enable_state == COMP_STATE_ENABLE then

return

end

if not self:GetActive() then

return

end

self.enable_state = COMP_STATE_ENABLE

self:OnEnable(...)

end

-- 打开

function M:OnEnable(...)

-- 启用更新函数

end

--提供给容器调用容器隐藏调用

function M:CallOnDisable(...)

if self.enable_state == COMP_STATE_DISABLE then

return

end

if not self:GetActive() then

return

end

self.enable_state = COMP_STATE_DISABLE

self:OnDisable(...)

end

-- 关闭

function M:OnDisable(...)

-- 禁用更新函数

end

function M:IsEnableState()

return self.enable_state == COMP_STATE_ENABLE

end

function M:IsDisableState()

return self.enable_state == COMP_STATE_DISABLE

end

-- 获取名字

function M:GetName()

return self.__name

end

-- 设置名字

function M:SetName(name)

if self.holder and self.holder.OnComponentSetName ~= nil then

self.holder:OnComponentSetName(self, name)

end

self.__name = name

end

-- 激活、反激活

function M:SetActive(active, ...)

if self.active_state == active then

return

end

self.active_state = active

if active then

self.gameObject:SetActive(active)

self.enable_param = {...}

self.enable_state = COMP_STATE_ENABLE

self:OnEnable(...)

else

self.gameObject:SetActive(active)

self.disable_param = {...}

self.enable_state = COMP_STATE_DISABLE

self:OnDisable(...)

end

-- 获取激活状态

function M:GetActive()

if self.active_state == nil and self.gameObject then

return self.gameObject.activeSelf

else

return self.active_state

end

--设置参考位置

function M:SetPosition( vec3 )

self.transform.localPosition = vec3

end

--设置参考位置

function M:GetPosition( )

return self.transform.localPosition

end

--设置世界坐标

function M:SetWorldPosition( vec3 )

self.transform.position = vec3

end

--获取世界坐标

function M:GetWorldPosition( )

return self.transform.position

end

--设置旋转角度

function M:SetLocalEulerAngle( vec3 )

self.transform.localEulerAngles = vec3

end

--设置缩放

function M:SetLocalScale( x, y, z )

self.transform.localScale = Vector3.New(x, y, z or 1)

end

-- 析构函数

function M:dtor()

if self.holder and type(self.holder) ~= "userdata" and self.holder.OnComponentDestroy ~= nil then

--通知容器组件销毁了

self.holder:OnComponentDestroy(self)

end

self.holder = nil

self.transform = nil

self.gameObject = nil

self.__name = nil

self.enable_param = nil

self.disable_param = nil

end

return M

基础的组件，一般不会直接使用，使用容器进行添加，基础组件的构造函数需要提供持有者就是哪个容器持有这个组件，第二个参数对应的就是容器下的哪个物体，重载参数可以是组件所在的子物体路径、子物体索引、组件的gameobject、lua侧组件实例。

通过元表的形式提供获取transfrom、gameobject，不需要构造的时候就获取，需要时按需获取。还有管理一些基础的激活状态，提供方法给容器调度，基础的修改transfrom方法等。

UI基础组件（UGUI），在基础组件的基础之上，添加了针对RectTransform获取和操作方法：

--[[
-- UI组件基类：所有UI组件从这里继承
-- 说明：
-- 1、采用基于组件的设计方式，容器类负责管理和调度子组件，实现类似于Unity中挂载脚本的功能
-- 2、组件对应Unity原生的各种Component和Script，容器对应Unity原生的GameObject
-- 3、写逻辑时完全不需要关注脚本调度，在cs中脚本函数怎么调度的，这里就怎么调度，只是要注意接口变动，lua侧没有Get、Set访问器
-- 注意：
-- 1、Lua侧组件的名字并不总是和Unity侧组件名字同步，Lua侧组件名字会作为组件系统中组件的标识
-- 2、Lua侧组件名字会在组件创建时提取Unity侧组件名字，随后二者没有任何关联，Unity侧组件名字可以随便改
-- 3、虽然Unity侧组件名字随后可以随意改，但是不建议（有GC），此外Lua侧组件一旦创建，使用时全部以Lua侧名字为准
-- 5、需要定时刷新的界面，最好启用定时器、协程，界面需要刷新的频率一般较低，倒计时之类的只需要每秒钟更新一次即可
--]]



local setmetatable = setmetatable
local getmetatable = getmetatable
local rawset = rawset

local M = Class("Frame.Base.UIBaseComponent", BaseComponent)

-- 构造函数：除非特殊情况，所有子类不要再写这个函数，初始化工作放Awake
-- 多种重载方式：
-- 1、ComponentTypeClass.New(relative_path)
-- 2、ComponentTypeClass.New(child_index)
-- 3、ComponentTypeClass.New(unity_gameObject)
-- 4、ComponentTypeClass.New(lua_component)
function M:ctor(holder, var_arg)
	-- trasnform对应的RectTransform
	self.rectTransform = nil

	--需要的时候再和c#交互，不需要一创建的时候就去获取
	local meta = getmetatable(self) or {}
  	setmetatable(self, {
        __index = function(t, k)

            local var = meta.__index(t,k)
            if var ~= nil then return var end
            if k == "rectTransform" then
            	local transform = t.transform
            	if transform ~= nil then
            		local value = transform:GetComponent(CSTypeRectTransform)
            		if value ~= nil then
                		rawset(t, k, value)
               	 		return value
               	 	end
               	end
            end
        end
    })
end

function M:SetSizeDelta(size)
	self.rectTransform.sizeDelta = size
end

function M:GetSizeDelta()
	return self.rectTransform.sizeDelta;
end

function M:GetAnchoredPosition()
	return self.rectTransform.anchoredPosition
end

function M:SetAnchoredPosition( x, y )
    self.rectTransform.anchoredPosition = Vector2.New(x, y)
end

function M:GetAnchoredPosX()
	return self.rectTransform.anchoredPosition.x
end

function M:SetAnchoredPosX(x)
	self.rectTransform.anchoredPosition = Vector2.New(x, self.rectTransform.anchoredPosition.y)
end

function M:GetAnchoredPosY()
	return self.rectTransform.anchoredPosition.y
end

function M:SetAnchoredPosY(y)
	self.rectTransform.anchoredPosition = Vector2.New(self.rectTransform.anchoredPosition.x, y)
end

function M:GetRect(  )
	return self.rectTransform.rect
end

-- 析构函数
function M:dtor()
	self.rectTransform = nil
end

return M

--[[

-- UI组件基类：所有UI组件从这里继承

-- 说明：

-- 1、采用基于组件的设计方式，容器类负责管理和调度子组件，实现类似于Unity中挂载脚本的功能

-- 2、组件对应Unity原生的各种Component和Script，容器对应Unity原生的GameObject

-- 3、写逻辑时完全不需要关注脚本调度，在cs中脚本函数怎么调度的，这里就怎么调度，只是要注意接口变动，lua侧没有Get、Set访问器

-- 注意：

-- 1、Lua侧组件的名字并不总是和Unity侧组件名字同步，Lua侧组件名字会作为组件系统中组件的标识

-- 2、Lua侧组件名字会在组件创建时提取Unity侧组件名字，随后二者没有任何关联，Unity侧组件名字可以随便改

-- 3、虽然Unity侧组件名字随后可以随意改，但是不建议（有GC），此外Lua侧组件一旦创建，使用时全部以Lua侧名字为准

-- 5、需要定时刷新的界面，最好启用定时器、协程，界面需要刷新的频率一般较低，倒计时之类的只需要每秒钟更新一次即可

--]]

local setmetatable = setmetatable

local getmetatable = getmetatable

local rawset = rawset

local M = Class("Frame.Base.UIBaseComponent", BaseComponent)

-- 构造函数：除非特殊情况，所有子类不要再写这个函数，初始化工作放Awake

-- 多种重载方式：

-- 1、ComponentTypeClass.New(relative_path)

-- 2、ComponentTypeClass.New(child_index)

-- 3、ComponentTypeClass.New(unity_gameObject)

-- 4、ComponentTypeClass.New(lua_component)

function M:ctor(holder, var_arg)

-- trasnform对应的RectTransform

self.rectTransform = nil

--需要的时候再和c#交互，不需要一创建的时候就去获取

local meta = getmetatable(self) or {}

setmetatable(self, {

__index = function(t, k)

local var = meta.__index(t,k)

if var ~= nil then return var end

if k == "rectTransform" then

local transform = t.transform

if transform ~= nil then

local value = transform:GetComponent(CSTypeRectTransform)

if value ~= nil then

rawset(t, k, value)

return value

end

})

end

function M:SetSizeDelta(size)

self.rectTransform.sizeDelta = size

end

function M:GetSizeDelta()

return self.rectTransform.sizeDelta;

end

function M:GetAnchoredPosition()

return self.rectTransform.anchoredPosition

end

function M:SetAnchoredPosition( x, y )

self.rectTransform.anchoredPosition = Vector2.New(x, y)

end

function M:GetAnchoredPosX()

return self.rectTransform.anchoredPosition.x

end

function M:SetAnchoredPosX(x)

self.rectTransform.anchoredPosition = Vector2.New(x, self.rectTransform.anchoredPosition.y)

end

function M:GetAnchoredPosY()

return self.rectTransform.anchoredPosition.y

end

function M:SetAnchoredPosY(y)

self.rectTransform.anchoredPosition = Vector2.New(self.rectTransform.anchoredPosition.x, y)

end

function M:GetRect( )

return self.rectTransform.rect

end

-- 析构函数

function M:dtor()

self.rectTransform = nil

end

return M

二、容器

因为容器也可以认为是一个基础组件，因为UI组件添加了RectTransform，所以容器也分为了基础容器和UI容器，如果有其他的扩展组件，也需要扩展容器，这里说一下UI容器，继承UIBaseComponent.lua，基础容器是类似的。

--[[
-- UI容器基类：当一个UI组件持有其它UI组件时，它就是一个容器类，它要负责调度其它UI组件的相关函数
-- 注意：
-- 1、window.view是窗口最上层的容器类
-- 2、AddComponent用来添加组件，一般在window.view的OnCreate中使用，RemoveComponent相反
-- 3、GetComponent用来获取组件，GetComponents用来获取一个类别的组件
-- 4、很重要：子组件必须保证名字互斥，即一个不同的名字要保证对应于Unity中一个不同的Transform
--]]

local M = Class("Frame.Base.BaseContainer", UIBaseComponent)
local base = UIBaseComponent

M:Include(require("Frame.Base.Component.BaseContainerInterface"))

function M:Awake()
	base.Awake(self)
	self.components = {} -- 二位数组 [component_name][component_class]
	self.length = 0
end

-- 打开
function M:OnEnable()
	base.OnEnable(self)

	self:Walk(function(component)
		component:CallOnEnable(table.unpack(component.enable_param or {}))
	end)
end

-- 关闭
function M:OnDisable()
	base.OnDisable(self)

	self:Walk(function(component)
		component:CallOnDisable(table.unpack(component.disable_param or {}))
	end)
end

return M

--[[

-- UI容器基类：当一个UI组件持有其它UI组件时，它就是一个容器类，它要负责调度其它UI组件的相关函数

-- 注意：

-- 1、window.view是窗口最上层的容器类

-- 2、AddComponent用来添加组件，一般在window.view的OnCreate中使用，RemoveComponent相反

-- 3、GetComponent用来获取组件，GetComponents用来获取一个类别的组件

-- 4、很重要：子组件必须保证名字互斥，即一个不同的名字要保证对应于Unity中一个不同的Transform

--]]

local M = Class("Frame.Base.BaseContainer", UIBaseComponent)

local base = UIBaseComponent

M:Include(require("Frame.Base.Component.BaseContainerInterface"))

function M:Awake()

base.Awake(self)

self.components = {} -- 二位数组 [component_name][component_class]

self.length = 0

end

-- 打开

function M:OnEnable()

base.OnEnable(self)

self:Walk(function(component)

component:CallOnEnable(table.unpack(component.enable_param or {}))

end)

end

-- 关闭

function M:OnDisable()

base.OnDisable(self)

self:Walk(function(component)

component:CallOnDisable(table.unpack(component.disable_param or {}))

end)

end

return M

这里重写了一些生命周期方法，定义存储组件的table，在显示和隐藏的时候调度组件提供的可用不可用调度方法。可以看到脚本前面引入了BaseContainerInterface，其实就是遍历方法复制过来，相当于接口，因为基础容器也是同一套代码，所以定义为一些接口来引用。

local M = {}

-- 遍历：注意，这里是无序的
function M:Walk(callback, component_class)
	for _,components in pairs(self.components or {}) do
		for cmp_class,component in pairs(components) do
			if component_class == nil then
				callback(component)
			elseif cmp_class == component_class then
				callback(component)
			end
		end
	end
end

-- 如果必要，创建新的记录，对应Unity下一个Transform下所有挂载脚本的记录表
function M:AddNewRecordIfNeeded(name)
	if self.components[name] == nil then
		self.components[name] = {}
	end
end

-- 记录Component
function M:RecordComponent(name, component_class, component)
	-- 同一个Transform不能挂两个同类型的组件
	assert(self.components[name][component_class] == nil, "Aready exist component_class : ", component_class.__cname)
	self.components[name][component_class] = component
end

-- 子组件改名回调
function M:OnComponentSetName(component, new_name)
	self:AddNewRecordIfNeeded(new_name)
	-- 该名字对应Unity的Transform下挂载的所有脚本都要改名
	local old_name = component:GetName()
	local components = self.components[old_name]
	for k,v in pairs(components) do
		v:SetName(new_name)
		self:RecordComponent(new_name, k, v)
	end
	self.components[old_name] = nil
end

-- 子组件销毁
function M:OnComponentDestroy(component)
	self.length = self.length - 1
end

-- 添加组件
-- 多种重载方式
-- 1、直接添加Lua侧组件：inst:AddComponent(ComponentTypeClass, luaComponentInst)
-- 2、指定Lua侧组件类型和必要参数，新建组件并添加，多种重载方式：
--    A）inst:AddComponent(ComponentTypeClass, relative_path)
--    B）inst:AddComponent(ComponentTypeClass, child_index)
--    C）inst:AddComponent(ComponentTypeClass, unity_gameObject)
--    D）inst:AddComponent(ComponentTypeClass, lua_component)
function M:AddComponent(component_target, var_arg, ...)
	local component_inst = nil
	local component_class = nil
	if type(var_arg) == "table" then
		component_inst = var_arg
		component_class = var_arg._class_type
	else
		component_inst = component_target.New(self, var_arg)
		component_class = component_target
		component_inst:Awake(...)
	end
	
	local name = component_inst:GetName() --var_arg为string时则将其作为name
	self:AddNewRecordIfNeeded(name)
	self:RecordComponent(name, component_class, component_inst)
	self.length = self.length + 1
	return component_inst
end

function M:GetOrAddComponent(component_target, var_arg, ...)
	local components = self.components[var_arg]
	if components and components[component_target] then
		return components[component_target]
	end

	return self:AddComponent(component_target, var_arg, ...)
end

-- 获取组件
function M:GetComponent(name, component_class)
	local components = self.components[name]
	if components == nil then
		return nil
	end
	
	if component_class == nil then
		-- 必须只有一个组件才能不指定类型，这一点由外部代码保证
		assert(table.count(components) == 1, "Must specify component_class while there are more then one component!")
		for _,component in pairs(components) do
			return component
		end
	else
		return components[component_class]
	end
end

-- 获取一系列组件：2种重载方式
-- 1、获取一个类别的组件
-- 2、获取某个name（Transform）下的所有组件
function M:GetComponents(component_target)
	local components = {}
	if type(component_target) == "table" then
		self:Walk(function(component)
			table.insert(components, component)
		end, component_target)
	elseif type(component_target) == "string" then
		components = self.components[component_target]
	else
		error("GetComponents params err!")
	end
	return components
end

-- 获取组件个数
function M:GetComponentsCount()
	return self.length
end

-- 移除组件
function M:RemoveComponent(name, component_class)
	local component = self:GetComponent(name, component_class)
	if component ~= nil then
		local cmp_class = component._class_type
		component:Dispose()
		self.components[name][cmp_class] = nil
	end
end

-- 移除一系列组件：2种重载方式
-- 1、移除一个类别的组件
-- 2、移除某个name（Transform）下的所有组件
function M:RemoveComponents(component_target)
	local components = self:GetComponents(component_target)
	for _,component in pairs(components) do
		local cmp_name = component:GetName()
		local cmp_class = component._class_type
		component:Dispose()
		self.components[cmp_name][cmp_class] = nil
	end
	return components
end

-- 销毁
function M:dtor()

	self:Walk(function(component)
		-- 说明：现在一个组件可以被多个容器持有，但是holder只有一个，所以由holder去释放
		if component.holder == self then
			component:Dispose()
		end
	end)
	self.components = {}
end

return M

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local M = {}

-- 遍历：注意，这里是无序的

function M:Walk(callback, component_class)

for _,components in pairs(self.components or {}) do

for cmp_class,component in pairs(components) do

if component_class == nil then

callback(component)

elseif cmp_class == component_class then

callback(component)

end

-- 如果必要，创建新的记录，对应Unity下一个Transform下所有挂载脚本的记录表

function M:AddNewRecordIfNeeded(name)

if self.components[name] == nil then

self.components[name] = {}

end

-- 记录Component

function M:RecordComponent(name, component_class, component)

-- 同一个Transform不能挂两个同类型的组件

assert(self.components[name][component_class] == nil, "Aready exist component_class : ", component_class.__cname)

self.components[name][component_class] = component

end

-- 子组件改名回调

function M:OnComponentSetName(component, new_name)

self:AddNewRecordIfNeeded(new_name)

-- 该名字对应Unity的Transform下挂载的所有脚本都要改名

local old_name = component:GetName()

local components = self.components[old_name]

for k,v in pairs(components) do

v:SetName(new_name)

self:RecordComponent(new_name, k, v)

end

self.components[old_name] = nil

end

-- 子组件销毁

function M:OnComponentDestroy(component)

self.length = self.length - 1

end

-- 添加组件

-- 多种重载方式

-- 1、直接添加Lua侧组件：inst:AddComponent(ComponentTypeClass, luaComponentInst)

-- 2、指定Lua侧组件类型和必要参数，新建组件并添加，多种重载方式：

-- A）inst:AddComponent(ComponentTypeClass, relative_path)

-- B）inst:AddComponent(ComponentTypeClass, child_index)

-- C）inst:AddComponent(ComponentTypeClass, unity_gameObject)

-- D）inst:AddComponent(ComponentTypeClass, lua_component)

function M:AddComponent(component_target, var_arg, ...)

local component_inst = nil

local component_class = nil

if type(var_arg) == "table" then

component_inst = var_arg

component_class = var_arg._class_type

else

component_inst = component_target.New(self, var_arg)

component_class = component_target

component_inst:Awake(...)

end

local name = component_inst:GetName() --var_arg为string时则将其作为name

self:AddNewRecordIfNeeded(name)

self:RecordComponent(name, component_class, component_inst)

self.length = self.length + 1

return component_inst

end

function M:GetOrAddComponent(component_target, var_arg, ...)

local components = self.components[var_arg]

if components and components[component_target] then

return components[component_target]

end

return self:AddComponent(component_target, var_arg, ...)

end

-- 获取组件

function M:GetComponent(name, component_class)

local components = self.components[name]

if components == nil then

return nil

end

if component_class == nil then

-- 必须只有一个组件才能不指定类型，这一点由外部代码保证

assert(table.count(components) == 1, "Must specify component_class while there are more then one component!")

for _,component in pairs(components) do

return component

end

else

return components[component_class]

end

-- 获取一系列组件：2种重载方式

-- 1、获取一个类别的组件

-- 2、获取某个name（Transform）下的所有组件

function M:GetComponents(component_target)

local components = {}

if type(component_target) == "table" then

self:Walk(function(component)

table.insert(components, component)

end, component_target)

elseif type(component_target) == "string" then

components = self.components[component_target]

else

error("GetComponents params err!")

end

return components

end

-- 获取组件个数

function M:GetComponentsCount()

return self.length

end

-- 移除组件

function M:RemoveComponent(name, component_class)

local component = self:GetComponent(name, component_class)

if component ~= nil then

local cmp_class = component._class_type

component:Dispose()

self.components[name][cmp_class] = nil

end

-- 移除一系列组件：2种重载方式

-- 1、移除一个类别的组件

-- 2、移除某个name（Transform）下的所有组件

function M:RemoveComponents(component_target)

local components = self:GetComponents(component_target)

for _,component in pairs(components) do

local cmp_name = component:GetName()

local cmp_class = component._class_type

component:Dispose()

self.components[cmp_name][cmp_class] = nil

end

return components

end

-- 销毁

function M:dtor()

self:Walk(function(component)

-- 说明：现在一个组件可以被多个容器持有，但是holder只有一个，所以由holder去释放

if component.holder == self then

component:Dispose()

end

end)

self.components = {}

end

return M

容器主要管理组件和记录持有的组件，lua添加组件对应着组件构造的四个重载，持有者就是自己，这样就对应上了。其他的获取组件，移除组件等等就是对记录的修改了和组件的释放了。

三、UI层级构建

说白了就是构建一个列表的有层级差的Canvas提供ui界面挂载渲染，所以需要一个配置表，Canvas的渲染模式使用相机的渲染方式，这样可以做多个相机且多个Canvas的层级关系，多个相机的形式可以针对有些东西需要渲染在ui和ui之间，这样的层级关系就可以处理好这些了。

首先我们需要一个配置，来说明这些层级关系的构建，CameraDepth就是相机的渲染层级，UILayers就是在当前相机下渲染的Canvas，多个相机结构可以在数组中再添加一个类似的配置，注意的是Layer的名字不要重复，以为UI管理是通过名字来识别是哪一个Canvas的。

M.UIBuild = {
    {
        CameraDepth = 0,
        UILayers = {
            -- 场景UI，如：点击建筑查看建筑信息---一般置于场景之上，界面UI之下
            SceneLayer = {
                Name = "SceneLayer",
                PlaneDistance = 1000,
                OrderInLayer = 0,
            },
            -- 主界面、全屏的一些界面
            BackgroudLayer = {
                Name = "BackgroudLayer",
                PlaneDistance = 1000,
                OrderInLayer = 1000,
            },
        
            -- 普通UI，一级、二级、三级等窗口---一般由用户点击打开的多级窗口
            NormalLayer = {
                Name = "NormalLayer",
                PlaneDistance = 800,
                OrderInLayer = 2000,
            },
            -- 提示UI，如：错误弹窗，网络连接弹窗等
            TipLayer = {
                Name = "TipLayer",
                PlaneDistance = 600,
                OrderInLayer = 3000,
            },
            -- 顶层UI，如：场景加载
            TopLayer = {
                Name = "TopLayer",
                PlaneDistance = 400,
                OrderInLayer = 4000,
            },
        }
    }
}

M.UIBuild = {

{

CameraDepth = 0,

UILayers = {

-- 场景UI，如：点击建筑查看建筑信息---一般置于场景之上，界面UI之下

SceneLayer = {

Name = "SceneLayer",

PlaneDistance = 1000,

OrderInLayer = 0,

-- 主界面、全屏的一些界面

BackgroudLayer = {

Name = "BackgroudLayer",

PlaneDistance = 1000,

OrderInLayer = 1000,

-- 普通UI，一级、二级、三级等窗口---一般由用户点击打开的多级窗口

NormalLayer = {

Name = "NormalLayer",

PlaneDistance = 800,

OrderInLayer = 2000,

-- 提示UI，如：错误弹窗，网络连接弹窗等

TipLayer = {

Name = "TipLayer",

PlaneDistance = 600,

OrderInLayer = 3000,

-- 顶层UI，如：场景加载

TopLayer = {

Name = "TopLayer",

PlaneDistance = 400,

OrderInLayer = 4000,

}

好了，有了构建的配置表，下面就可以开始构建了，在UIManager单例实例化的时候，就可以遍历配置进行生成了。定义一个变量存储所有的Layer层，SetUIbuildConfig中针对每个相机下的Canvas进行生成。UIRoot是一个只包含一个相机子物体的预制体，在UIBuildGenerator中，获取到相机，并设置它的渲染层级，针对layer进行排序，并新建GameObject在UIRoot下，并实例化一个UILayer组件，在组件中进行相应的Canvas设置，并记录生成的layer，记录的layer是不管是哪个相机显然的。

function M:ctor()
	self.layers = {} --所有可用的层级

	self:__Init()
end

function M:__Init()
	self.Resolution = Vector2.New(FrameConst.DesignScreen_Width, FrameConst.DesignScreen_Height)
	self:SetUIbuildConfig( FrameConfig.UIBuild )
end

function M:SetUIbuildConfig( config )
	self.layers = {}
	for i,v in ipairs(config) do
		self:UIBuildGenerator(v)
	end
end

function M:UIBuildGenerator( config )
	GameObjectManager:GetInstance():GetAssetInstance("Common/Prefabs/UIRoot.prefab", function(obj)
		self.ui_root = obj
		CSGameObject.DontDestroyOnLoad(obj)
		local camera_trans = obj.transform:Find("UICamera")
		local camera = camera_trans:GetComponent(typeof( CS.UnityEngine.Camera ))
		camera.depth = config.CameraDepth or 0
		camera.clearFlags = CS.UnityEngine.CameraClearFlags.Nothing

		local layers = config.UILayers

		table.walksort(layers, function(lkey, rkey)
			return layers[lkey].OrderInLayer < layers[rkey].OrderInLayer
		end, function(index, layer)
			assert(self.layers[layer.Name] == nil, "Aready exist layer : "..layer.Name)
			local go = CSGoFind(layer.Name)
			if not go then
				go = CSGameObject(layer.Name)
				local trans = go.transform
				trans:SetParent(obj.transform, false)
			end
			local new_layer = UILayer.New(obj.transform, layer.Name)
			new_layer:Awake(layer, camera)
			self.layers[layer.Name] = new_layer
		end)
	end)
end

function M:ctor()

self.layers = {} --所有可用的层级

self:__Init()

end

function M:__Init()

self.Resolution = Vector2.New(FrameConst.DesignScreen_Width, FrameConst.DesignScreen_Height)

self:SetUIbuildConfig( FrameConfig.UIBuild )

end

function M:SetUIbuildConfig( config )

self.layers = {}

for i,v in ipairs(config) do

self:UIBuildGenerator(v)

end

function M:UIBuildGenerator( config )

GameObjectManager:GetInstance():GetAssetInstance("Common/Prefabs/UIRoot.prefab", function(obj)

self.ui_root = obj

CSGameObject.DontDestroyOnLoad(obj)

local camera_trans = obj.transform:Find("UICamera")

local camera = camera_trans:GetComponent(typeof( CS.UnityEngine.Camera ))

camera.depth = config.CameraDepth or 0

camera.clearFlags = CS.UnityEngine.CameraClearFlags.Nothing

local layers = config.UILayers

table.walksort(layers, function(lkey, rkey)

return layers[lkey].OrderInLayer < layers[rkey].OrderInLayer

end, function(index, layer)

assert(self.layers[layer.Name] == nil, "Aready exist layer : "..layer.Name)

local go = CSGoFind(layer.Name)

if not go then

go = CSGameObject(layer.Name)

local trans = go.transform

trans:SetParent(obj.transform, false)

end

local new_layer = UILayer.New(obj.transform, layer.Name)

new_layer:Awake(layer, camera)

self.layers[layer.Name] = new_layer

end)

end

在UILayer组件中，对实例化的GameObject添加相应的组件，让其成为Canvas。操作c#侧添加Canvas、CanvasScaler、GraphicRaycaster组件，并对其进行相应的设置，相应的设置可以看代码，针对需求进行设置。

--[[
-- Lua侧UILayer
--]]

local M = Class("UILayer", UIBaseComponent)
local base = UIBaseComponent

-- 创建
function M:Awake(layer, camera)
	base.Awake(self)
	-- Unity侧原生组件
	self.unity_canvas = nil
	self.unity_canvas_scaler = nil
	self.unity_graphic_raycaster = nil
	
	-- ui layer
	self.gameObject.layer = 5
	
	-- canvas
	self.unity_canvas = self.gameObject:AddComponent(typeof(CS.UnityEngine.Canvas))
	-- 说明：很坑爹，这里添加UI组件以后transform会Unity被替换掉，必须重新获取
	self.transform = self.unity_canvas.transform
	self.gameObject = self.unity_canvas.gameObject
	self.unity_canvas.renderMode = CS.UnityEngine.RenderMode.ScreenSpaceCamera
	self.unity_canvas.worldCamera = camera
	self.unity_canvas.planeDistance = layer.PlaneDistance
	self.unity_canvas.sortingLayerName = FrameConfig.SortingLayerNames.UI
	self.unity_canvas.sortingOrder = layer.OrderInLayer
	
	-- scaler
	self.unity_canvas_scaler = self.gameObject:AddComponent(typeof(CS.UnityEngine.UI.CanvasScaler))
	self.unity_canvas_scaler.uiScaleMode = CS.UnityEngine.UI.CanvasScaler.ScaleMode.ScaleWithScreenSize
	self.unity_canvas_scaler.screenMatchMode = CS.UnityEngine.UI.CanvasScaler.ScreenMatchMode.MatchWidthOrHeight
	self.unity_canvas_scaler.referenceResolution = UIManager:GetInstance().Resolution
	if CS_SCREEN_W/CS_SCREEN_H > FrameConst.DesignScreen_Width/FrameConst.DesignScreen_Height then
		self.unity_canvas_scaler.matchWidthOrHeight = 1
	else
		self.unity_canvas_scaler.matchWidthOrHeight = 0
	end	

	-- raycaster
	self.unity_graphic_raycaster = self.gameObject:AddComponent(typeof(CS.UnityEngine.UI.GraphicRaycaster))
end

--设置canvas的worldCamera
function M:SetCanvasWorldCamera(camera)
	--需要切换layer下面所有layer不对的情况
	local old_camera = self.unity_canvas.worldCamera
	if old_camera ~= camera then
		self.unity_canvas.worldCamera = camera
	end	
end

function M:GetCanvasLayer()
	return self.gameObject.layer
end

function M:GetCanvasSize()
	return self.rectTransform.rect.size
end

-- 销毁
function M:dtor()
	self.unity_canvas = nil
	self.unity_canvas_scaler = nil
	self.unity_graphic_raycaster = nil
end

return M

--[[

-- Lua侧UILayer

--]]

local M = Class("UILayer", UIBaseComponent)

local base = UIBaseComponent

-- 创建

function M:Awake(layer, camera)

base.Awake(self)

-- Unity侧原生组件

self.unity_canvas = nil

self.unity_canvas_scaler = nil

self.unity_graphic_raycaster = nil

-- ui layer

self.gameObject.layer = 5

-- canvas

self.unity_canvas = self.gameObject:AddComponent(typeof(CS.UnityEngine.Canvas))

-- 说明：很坑爹，这里添加UI组件以后transform会Unity被替换掉，必须重新获取

self.transform = self.unity_canvas.transform

self.gameObject = self.unity_canvas.gameObject

self.unity_canvas.renderMode = CS.UnityEngine.RenderMode.ScreenSpaceCamera

self.unity_canvas.worldCamera = camera

self.unity_canvas.planeDistance = layer.PlaneDistance

self.unity_canvas.sortingLayerName = FrameConfig.SortingLayerNames.UI

self.unity_canvas.sortingOrder = layer.OrderInLayer

-- scaler

self.unity_canvas_scaler = self.gameObject:AddComponent(typeof(CS.UnityEngine.UI.CanvasScaler))

self.unity_canvas_scaler.uiScaleMode = CS.UnityEngine.UI.CanvasScaler.ScaleMode.ScaleWithScreenSize

self.unity_canvas_scaler.screenMatchMode = CS.UnityEngine.UI.CanvasScaler.ScreenMatchMode.MatchWidthOrHeight

self.unity_canvas_scaler.referenceResolution = UIManager:GetInstance().Resolution

if CS_SCREEN_W/CS_SCREEN_H > FrameConst.DesignScreen_Width/FrameConst.DesignScreen_Height then

self.unity_canvas_scaler.matchWidthOrHeight = 1

else

self.unity_canvas_scaler.matchWidthOrHeight = 0

end

-- raycaster

self.unity_graphic_raycaster = self.gameObject:AddComponent(typeof(CS.UnityEngine.UI.GraphicRaycaster))

end

--设置canvas的worldCamera

function M:SetCanvasWorldCamera(camera)

--需要切换layer下面所有layer不对的情况

local old_camera = self.unity_canvas.worldCamera

if old_camera ~= camera then

self.unity_canvas.worldCamera = camera

end

function M:GetCanvasLayer()

return self.gameObject.layer

end

function M:GetCanvasSize()

return self.rectTransform.rect.size

end

-- 销毁

function M:dtor()

self.unity_canvas = nil

self.unity_canvas_scaler = nil

self.unity_graphic_raycaster = nil

end

return M

四、UI窗口定义

定义一个记录一个窗口需要的信息类，每一个UI窗口记录，都用这个来保存。

--[[
-- UIWindow数据，用以表示一个窗口
-- 注意：
-- 1、窗口名字必须和预设名字一致
--]]

local UIWindow = {
	-- 窗口名字
	Name = "Background",
	-- Layer层级
	Layer = 0,
	-- View实例
	View = UIBaseView,
	-- 是否激活
	Active = false,
	-- ui配置
	VIEW_CONFIG = {},
	-- 是否正在加载
	IsLoading = false,
}
	
return Class("UIWindow", UIWindow)

--[[

-- UIWindow数据，用以表示一个窗口

-- 注意：

-- 1、窗口名字必须和预设名字一致

--]]

local UIWindow = {

-- 窗口名字

Name = "Background",

-- Layer层级

Layer = 0,

-- View实例

View = UIBaseView,

-- 是否激活

Active = false,

-- ui配置

VIEW_CONFIG = {},

-- 是否正在加载

IsLoading = false,

}

return Class("UIWindow", UIWindow)

再定义一个基础的窗口类，所有的UI界面都继承它，而基础的窗口类继承UIBaseContainer，也就是说UI界面就是一个组件同时也是一个容器，可以获取子物体的组件进行逻辑处理了。VIEW_CONFIG配置的是UI界面应该挂载在上面生成好的哪一个Layer下，PrefabPath是一个Addressable的地址，用来加载UI界面的预设。

local M = Class("UIBaseView", UIBaseContainer)
local base = UIBaseContainer

M.VIEW_CONFIG = {
	Layer = "NormalLayer",
	PrefabPath = nil,
}

-- 构造函数：必须把基类需要的所有参数列齐---即使在这里不用，提高代码可读性
-- 子类别再写构造函数，初始化工作放OnCreate
function M:ctor(holder, var_arg)
end

-- 创建：资源加载完毕
function M:OnCreate()
	base.OnCreate(self)
end

-- 打开：窗口显示
function M:OnEnable(...)
	base.OnEnable(self)
end

-- 关闭：窗口隐藏
function M:OnDisable()
	base.OnDisable(self)
end

--关闭窗口
function M:CloseSelf()
	UIManager:GetInstance():CloseWindow(self:GetName())
end

function M:DestroySelf()
	UIManager:GetInstance():DestroyWindow(self:GetName())
end

function M:GetRootGameObjectByName( name )
	local scene_script = SceneManager:GetInstance():GetCurentSceneScript()
	if scene_script then
		return scene_script:GetRootGameObjectByName(name)
	end

	return nil
end

-- 销毁：窗口销毁
function M:dtor()
	
end


return M

local M = Class("UIBaseView", UIBaseContainer)

local base = UIBaseContainer

M.VIEW_CONFIG = {

Layer = "NormalLayer",

PrefabPath = nil,

}

-- 构造函数：必须把基类需要的所有参数列齐---即使在这里不用，提高代码可读性

-- 子类别再写构造函数，初始化工作放OnCreate

function M:ctor(holder, var_arg)

end

-- 创建：资源加载完毕

function M:OnCreate()

base.OnCreate(self)

end

-- 打开：窗口显示

function M:OnEnable(...)

base.OnEnable(self)

end

-- 关闭：窗口隐藏

function M:OnDisable()

base.OnDisable(self)

end

--关闭窗口

function M:CloseSelf()

UIManager:GetInstance():CloseWindow(self:GetName())

end

function M:DestroySelf()

UIManager:GetInstance():DestroyWindow(self:GetName())

end

function M:GetRootGameObjectByName( name )

local scene_script = SceneManager:GetInstance():GetCurentSceneScript()

if scene_script then

return scene_script:GetRootGameObjectByName(name)

end

return nil

end

-- 销毁：窗口销毁

function M:dtor()

end

return M

五、UI管理器

UI管理器的作用就是打开界面和关闭界面等进行界面管理，打开界面的时候只要传入继承自UIBaseView的lua路径，这里会生成一个UIWindow来记录相关内容，包括实例化lua的UIBaseView的实例，持有者就是指定的layer，参数为界面lua路径，也包括VIEW_CONFIG配置等。打开界面的时候，会通过Addressable加载并实例化UI界面，然后调用View的Awake方法。最后就是激活窗口，把窗口在当前层级置顶，调用SetActive方法，调度窗口及Awake下添加组件的OnEnable方法。同理关闭界面的时候，传入lua路径，同样会调用SetActive方法，调度窗口及Awake下添加组件的OnDisable方法。

完整的UIManager.lua：

--[[
	fd: UI管理类，所有UI都应该通过该管理类进行创建
	提供UI操作、UI层级、UI消息、UI资源加载、UI调度、UI缓存等管理
]]

local CSGameObject = CS.UnityEngine.GameObject
local CSGoFind = CSGameObject.Find

local base = require("Frame.Base.Manager.ManagerBase")
local M = Class("UIManager", base)

local IsNull = IsNull

function M:ctor()
	self.windows = {} --所有存活的窗体  {ui_name:window}
	self.layers = {} --所有可用的层级

	self:__Init()
end

function M:__Init()
	self.Resolution = Vector2.New(FrameConst.DesignScreen_Width, FrameConst.DesignScreen_Height)
	self:SetUIbuildConfig( FrameConfig.UIBuild )
end

function M:SetUIbuildConfig( config )
	self.layers = {}
	for i,v in ipairs(config) do
		self:UIBuildGenerator(v)
	end
end

function M:UIBuildGenerator( config )
	GameObjectManager:GetInstance():GetAssetInstance("Common/Prefabs/UIRoot.prefab", function(obj)
		self.ui_root = obj
		CSGameObject.DontDestroyOnLoad(obj)
		local camera_trans = obj.transform:Find("UICamera")
		local camera = camera_trans:GetComponent(typeof( CS.UnityEngine.Camera ))
		camera.depth = config.CameraDepth or 0
		camera.clearFlags = CS.UnityEngine.CameraClearFlags.Nothing

		local layers = config.UILayers

		table.walksort(layers, function(lkey, rkey)
			return layers[lkey].OrderInLayer < layers[rkey].OrderInLayer
		end, function(index, layer)
			assert(self.layers[layer.Name] == nil, "Aready exist layer : "..layer.Name)
			local go = CSGoFind(layer.Name)
			if not go then
				go = CSGameObject(layer.Name)
				local trans = go.transform
				trans:SetParent(obj.transform, false)
			end
			local new_layer = UILayer.New(obj.transform, layer.Name)
			new_layer:Awake(layer, camera)
			self.layers[layer.Name] = new_layer
		end)
	end)
end

function M:Broadcast(e_type, ...)
	CallEvent(e_type, ...)
end

--@brief 获取UI窗口
function M:GetWindow(ui_name, active, view_active)
	local target = self.windows[ui_name]
	if target == nil then return nil end
	if active ~= nil and target.Active ~= active then return nil end
	if view_active ~= nil and target.View:GetActive() ~= view_active then return nil end

	return target
end

function M:GetView(ui_name)
	local target = self.windows[ui_name]
	if target == nil then return nil end

	return target.View
end

function M:GetLayer(layer)
	return self.layers[layer]
end

--@brief 初始化window
function M:__InitWindow(ui_name, window)
	local luaClass = require(ui_name)
	local VIEW_CONFIG = luaClass.VIEW_CONFIG
	assert(VIEW_CONFIG ~= nil, "No VIEW_CONFIG : "..ui_name)
	local layer = self.layers[VIEW_CONFIG.Layer]
	assert(layer, "No layer named : "..ui_name..".You should create it first!")
	
	window.Name = ui_name
	window.View = luaClass.New(layer, window.Name)
	window.Active = false
	window.Layer = layer
	window.VIEW_CONFIG =  VIEW_CONFIG
	
	self:Broadcast(FrameEvent.UIFRAME_ON_WINDOW_CREATE, window)
	return window	
end

--@brief 激活窗口
function M:__ActivateWindow(target, ...)
	assert(target)
	assert(target.IsLoading == false, "You can only activate window after prefab loaded!")

	target.View.transform:SetAsLastSibling()
	target.View:SetActive(true, ...)
	self:Broadcast(FrameEvent.UIFRAME_ON_WINDOW_OPEN, target)
end

--@brief 反激活窗口
function M:__Deactivate(target)
	if target.View == nil or target.View.transform == nil then
		return
	end
	target.View:SetActive(false)
	self:Broadcast(FrameEvent.UIFRAME_ON_WINDOW_CLOSE, target)
end

--@brief 打开窗口-私有
function M:__InnerOpenWindow(useCroutine, target, ...)
	assert(target)
	assert(target.View)
	assert(target.Active == false, "You should close window before open again!")

	target.Active = true
	local has_view = target.View ~= UIBaseView
	local has_prefab_res = target.VIEW_CONFIG.PrefabPath and #target.VIEW_CONFIG.PrefabPath > 0
	local has_loaded = not IsNull(target.View.gameObject)
	local need_load = has_view and has_prefab_res and not has_loaded

	if not need_load then
		self:__ActivateWindow(target, ...)
	else
		target.View.__temp_params = SafePack(...)
		if target.IsLoading then --正在加载时 不要再次加载资源了
			return
		end
		target.IsLoading = true

		local function OnLoadGameObjectDone(go)
			if IsNull(go) then
				zprint( string.format("UIManager InnerOpenWindow %s faild", target.VIEW_CONFIG.PrefabPath) )
				return
			end
			
			local trans = go.transform
			trans:SetParent(target.Layer.transform, false)
			trans.name = target.Name
			
			target.IsLoading = false
			target.View:Awake()
			if target.Active then
				self:__ActivateWindow(target, SafeUnpack(target.View.__temp_params))
				target.View.__temp_params = nil
			else
				self:__Deactivate(target)
			end
		end

		if useCroutine then
			local go = GameObjectManager:GetInstance():CoGetAssetInstance(target.VIEW_CONFIG.PrefabPath)
			OnLoadGameObjectDone(go)
		else
			GameObjectManager:GetInstance():GetAssetInstance(target.VIEW_CONFIG.PrefabPath, OnLoadGameObjectDone)
		end
	end
end

--@brief 关闭窗口-私有
function M:__InnnerCloseWindow(target)
	assert(target)
	assert(target.View)
	if target.Active then
		self:__Deactivate(target)
		target.Active = false
	end
end

--@brief 判断窗口是否打开
function M:IsActiveWindow(ui_name)
	local target = self:GetWindow(ui_name)
	if not target then
		return false
	end
	return target.Active
end

function M:__OpenWindow(useCroutine, ui_name, ...)
	local target = self:GetWindow(ui_name)
	if not target then
		local window = UIWindow.New()
		self.windows[ui_name] = window
		target = self:__InitWindow(ui_name, window)
	end

	--先关闭
	self:__InnnerCloseWindow(target)
	self:__InnerOpenWindow(useCroutine, target, ...)
	return target.View
end

--@brief 协程方式打开窗口
function M:CoOpenWindow(ui_name, ...)
	self:__OpenWindow(true, ui_name, ...)
end

--@brief 异步方式打开窗口
function M:OpenWindow(ui_name, ...)
	return self:__OpenWindow(false, ui_name, ...)
end

--@brief 关闭窗口-只是设置为隐藏
function M:CloseWindow(ui_name)
	local target = self:GetWindow(ui_name, true)
	if not target then
		return
	end

	self:__InnnerCloseWindow(target)
end

--@brief 关闭层级所有窗口
function M:CloseWindowByLayer(layer, except_ui_names)
	except_ui_names = except_ui_names or {}
	local dict_ui_names = {}
	for k, ui_name in pairs(except_ui_names) do
		dict_ui_names[ui_name] = true
	end

	for ui_name, v in pairs(self.windows) do
		if v.Layer:GetName() == layer.Name and not dict_ui_names[ui_name] then
			self:CloseWindow(ui_name)
		end
	end
end

-- 关闭其它层级窗口
function M:CloseWindowExceptLayer(layer)
	for _,v in pairs(self.windows) do
		if v.Layer:GetName() ~= layer.Name then
			self:__InnnerCloseWindow(v)
		end
	end	
end

--@brief 关闭所有窗口
function M:CloseAllWindows()
	for _,v in pairs(self.windows) do
		self:__InnnerCloseWindow(v)
	end
end

function M:__InnerDestroyWindow(target)
	self:Broadcast(FrameEvent.UIFRAME_ON_WINDOW_DESTROY, target)
	GameObjectManager:GetInstance():RecycleObject(target.View.gameObject)
	target.View:Dispose()
	self.windows[target.Name] = nil
end

--@brief 销毁窗口-会将预设回收到内存池中
function M:DestroyWindow(ui_name)
	local target = self:GetWindow(ui_name)
	if not target then
		return
	end

	self:CloseWindow(ui_name)
	self:__InnerDestroyWindow(target)
end

function M:DestroyWindowExceptNames(except_ui_names)
	local dict_ui_names = {}
	for k, ui_name in pairs(except_ui_names) do
		dict_ui_names[ui_name] = true
	end
	for k, v in pairs(self.windows) do
		if not dict_ui_names[v.Name] then
			self:DestroyWindow(v.Name)
		end
	end
end

--@brief 销毁层级所有窗口
function M:DestroyWindowByLayer(layer)
	for k,v in pairs(self.windows) do
		if v.Layer:GetName() == layer.Name then
			self:DestroyWindow(v.Name)
		end
	end
end

function M:DestroyWindowExceptLayer(layer)
	for k,v in pairs(self.windows) do
		if v.Layer:GetName() ~= layer.Name then
			self:DestroyWindow(v.Name)
		end
	end
end

function M:DestroyAllWindow()
	for k,v in pairs(self.windows) do
		self:DestroyWindow(v.Name)
	end
end

function M:IsActiveWindowByLayer(layer)
	local has = false
	for ui_name, v in pairs(self.windows) do
		if v.Layer:GetName() == layer.Name and v.View:GetActive() then
			has = true
			break
		end
	end

	return has
end

--用来调用界面方法
function M:Notify(ui_name, funcname, ...)
	if not self:IsActiveWindow(ui_name) then
		return
	end

	local view = self:GetView(ui_name)
	if view and view[funcname] then
		xpcall(view[funcname](view, ...), function(err) end)
	end
end

function M:dtor()
	self:DestroyAllWindow()
	if self.ui_root then
		CSGameObject.Destroy(self.ui_root)
	end
end

return M

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--[[

fd: UI管理类，所有UI都应该通过该管理类进行创建

提供UI操作、UI层级、UI消息、UI资源加载、UI调度、UI缓存等管理

]]

local CSGameObject = CS.UnityEngine.GameObject

local CSGoFind = CSGameObject.Find

local base = require("Frame.Base.Manager.ManagerBase")

local M = Class("UIManager", base)

local IsNull = IsNull

function M:ctor()

self.windows = {} --所有存活的窗体 {ui_name:window}

self.layers = {} --所有可用的层级

self:__Init()

end

function M:__Init()

self.Resolution = Vector2.New(FrameConst.DesignScreen_Width, FrameConst.DesignScreen_Height)

self:SetUIbuildConfig( FrameConfig.UIBuild )

end

function M:SetUIbuildConfig( config )

self.layers = {}

for i,v in ipairs(config) do

self:UIBuildGenerator(v)

end

function M:UIBuildGenerator( config )

GameObjectManager:GetInstance():GetAssetInstance("Common/Prefabs/UIRoot.prefab", function(obj)

self.ui_root = obj

CSGameObject.DontDestroyOnLoad(obj)

local camera_trans = obj.transform:Find("UICamera")

local camera = camera_trans:GetComponent(typeof( CS.UnityEngine.Camera ))

camera.depth = config.CameraDepth or 0

camera.clearFlags = CS.UnityEngine.CameraClearFlags.Nothing

local layers = config.UILayers

table.walksort(layers, function(lkey, rkey)

return layers[lkey].OrderInLayer < layers[rkey].OrderInLayer

end, function(index, layer)

assert(self.layers[layer.Name] == nil, "Aready exist layer : "..layer.Name)

local go = CSGoFind(layer.Name)

if not go then

go = CSGameObject(layer.Name)

local trans = go.transform

trans:SetParent(obj.transform, false)

end

local new_layer = UILayer.New(obj.transform, layer.Name)

new_layer:Awake(layer, camera)

self.layers[layer.Name] = new_layer

end)

end

function M:Broadcast(e_type, ...)

CallEvent(e_type, ...)

end

--@brief 获取UI窗口

function M:GetWindow(ui_name, active, view_active)

local target = self.windows[ui_name]

if target == nil then return nil end

if active ~= nil and target.Active ~= active then return nil end

if view_active ~= nil and target.View:GetActive() ~= view_active then return nil end

return target

end

function M:GetView(ui_name)

local target = self.windows[ui_name]

if target == nil then return nil end

return target.View

end

function M:GetLayer(layer)

return self.layers[layer]

end

--@brief 初始化window

function M:__InitWindow(ui_name, window)

local luaClass = require(ui_name)

local VIEW_CONFIG = luaClass.VIEW_CONFIG

assert(VIEW_CONFIG ~= nil, "No VIEW_CONFIG : "..ui_name)

local layer = self.layers[VIEW_CONFIG.Layer]

assert(layer, "No layer named : "..ui_name..".You should create it first!")

window.Name = ui_name

window.View = luaClass.New(layer, window.Name)

window.Active = false

window.Layer = layer

window.VIEW_CONFIG = VIEW_CONFIG

self:Broadcast(FrameEvent.UIFRAME_ON_WINDOW_CREATE, window)

return window

end

--@brief 激活窗口

function M:__ActivateWindow(target, ...)

assert(target)

assert(target.IsLoading == false, "You can only activate window after prefab loaded!")

target.View.transform:SetAsLastSibling()

target.View:SetActive(true, ...)

self:Broadcast(FrameEvent.UIFRAME_ON_WINDOW_OPEN, target)

end

--@brief 反激活窗口

function M:__Deactivate(target)

if target.View == nil or target.View.transform == nil then

return

end

target.View:SetActive(false)

self:Broadcast(FrameEvent.UIFRAME_ON_WINDOW_CLOSE, target)

end

--@brief 打开窗口-私有

function M:__InnerOpenWindow(useCroutine, target, ...)

assert(target)

assert(target.View)

assert(target.Active == false, "You should close window before open again!")

target.Active = true

local has_view = target.View ~= UIBaseView

local has_prefab_res = target.VIEW_CONFIG.PrefabPath and #target.VIEW_CONFIG.PrefabPath > 0

local has_loaded = not IsNull(target.View.gameObject)

local need_load = has_view and has_prefab_res and not has_loaded

if not need_load then

self:__ActivateWindow(target, ...)

else

target.View.__temp_params = SafePack(...)

if target.IsLoading then --正在加载时不要再次加载资源了

return

end

target.IsLoading = true

local function OnLoadGameObjectDone(go)

if IsNull(go) then

zprint( string.format("UIManager InnerOpenWindow %s faild", target.VIEW_CONFIG.PrefabPath) )

return

end

local trans = go.transform

trans:SetParent(target.Layer.transform, false)

trans.name = target.Name

target.IsLoading = false

target.View:Awake()

if target.Active then

self:__ActivateWindow(target, SafeUnpack(target.View.__temp_params))

target.View.__temp_params = nil

else

self:__Deactivate(target)

end

if useCroutine then

local go = GameObjectManager:GetInstance():CoGetAssetInstance(target.VIEW_CONFIG.PrefabPath)

OnLoadGameObjectDone(go)

else

GameObjectManager:GetInstance():GetAssetInstance(target.VIEW_CONFIG.PrefabPath, OnLoadGameObjectDone)

end

--@brief 关闭窗口-私有

function M:__InnnerCloseWindow(target)

assert(target)

assert(target.View)

if target.Active then

self:__Deactivate(target)

target.Active = false

end

--@brief 判断窗口是否打开

function M:IsActiveWindow(ui_name)

local target = self:GetWindow(ui_name)

if not target then

return false

end

return target.Active

end

function M:__OpenWindow(useCroutine, ui_name, ...)

local target = self:GetWindow(ui_name)

if not target then

local window = UIWindow.New()

self.windows[ui_name] = window

target = self:__InitWindow(ui_name, window)

end

--先关闭

self:__InnnerCloseWindow(target)

self:__InnerOpenWindow(useCroutine, target, ...)

return target.View

end

--@brief 协程方式打开窗口

function M:CoOpenWindow(ui_name, ...)

self:__OpenWindow(true, ui_name, ...)

end

--@brief 异步方式打开窗口

function M:OpenWindow(ui_name, ...)

return self:__OpenWindow(false, ui_name, ...)

end

--@brief 关闭窗口-只是设置为隐藏

function M:CloseWindow(ui_name)

local target = self:GetWindow(ui_name, true)

if not target then

return

end

self:__InnnerCloseWindow(target)

end

--@brief 关闭层级所有窗口

function M:CloseWindowByLayer(layer, except_ui_names)

except_ui_names = except_ui_names or {}

local dict_ui_names = {}

for k, ui_name in pairs(except_ui_names) do

dict_ui_names[ui_name] = true

end

for ui_name, v in pairs(self.windows) do

if v.Layer:GetName() == layer.Name and not dict_ui_names[ui_name] then

self:CloseWindow(ui_name)

end

-- 关闭其它层级窗口

function M:CloseWindowExceptLayer(layer)

for _,v in pairs(self.windows) do

if v.Layer:GetName() ~= layer.Name then

self:__InnnerCloseWindow(v)

end

--@brief 关闭所有窗口

function M:CloseAllWindows()

for _,v in pairs(self.windows) do

self:__InnnerCloseWindow(v)

end

function M:__InnerDestroyWindow(target)

self:Broadcast(FrameEvent.UIFRAME_ON_WINDOW_DESTROY, target)

GameObjectManager:GetInstance():RecycleObject(target.View.gameObject)

target.View:Dispose()

self.windows[target.Name] = nil

end

--@brief 销毁窗口-会将预设回收到内存池中

function M:DestroyWindow(ui_name)

local target = self:GetWindow(ui_name)

if not target then

return

end

self:CloseWindow(ui_name)

self:__InnerDestroyWindow(target)

end

function M:DestroyWindowExceptNames(except_ui_names)

local dict_ui_names = {}

for k, ui_name in pairs(except_ui_names) do

dict_ui_names[ui_name] = true

end

for k, v in pairs(self.windows) do

if not dict_ui_names[v.Name] then

self:DestroyWindow(v.Name)

end

--@brief 销毁层级所有窗口

function M:DestroyWindowByLayer(layer)

for k,v in pairs(self.windows) do

if v.Layer:GetName() == layer.Name then

self:DestroyWindow(v.Name)

end

function M:DestroyWindowExceptLayer(layer)

for k,v in pairs(self.windows) do

if v.Layer:GetName() ~= layer.Name then

self:DestroyWindow(v.Name)

end

function M:DestroyAllWindow()

for k,v in pairs(self.windows) do

self:DestroyWindow(v.Name)

end

function M:IsActiveWindowByLayer(layer)

local has = false

for ui_name, v in pairs(self.windows) do

if v.Layer:GetName() == layer.Name and v.View:GetActive() then

has = true

break

end

return has

end

--用来调用界面方法

function M:Notify(ui_name, funcname, ...)

if not self:IsActiveWindow(ui_name) then

return

end

local view = self:GetView(ui_name)

if view and view[funcname] then

xpcall(view[funcname](view, ...), function(err) end)

end

function M:dtor()

self:DestroyAllWindow()

if self.ui_root then

CSGameObject.Destroy(self.ui_root)

end

return M

六、例子

local M = {
    UIWindowNames = {
        StudyAudioPanel = "Hall.Views.StudyAudioPanel",
    }
}
UIManager:GetInstance():OpenWindow( M.UIWindowNames.StudyAudioPanel )
UIManager:GetInstance():CloseWindow( M.UIWindowNames.StudyAudioPanel )

local M = {

UIWindowNames = {

StudyAudioPanel = "Hall.Views.StudyAudioPanel",

}

UIManager:GetInstance():OpenWindow( M.UIWindowNames.StudyAudioPanel )

UIManager:GetInstance():CloseWindow( M.UIWindowNames.StudyAudioPanel )

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