推荐回答(2个)
Android Binding 提供了一个通用的框架用来实现 Android 的视图部件跟数据模型进行绑定的功能,用来实现 Android 应用程序的
MVC 模式。
Android-Binding is a MVVM (Model-View-ViewModel) framework, that helps
freeing the Activity from working directly to User Interfaces. As an Activity,
it's job is only to supply the ViewModel that the View requires to render the
result while ViewModel is a class that with zero direct coupling with the View
(and actually you might supply a different View to it).
关键特性:
Declare view binding in Layout XML files. No additional files needed.
Helps implements MVVM
Much easier for Unit-Testing
Model Validation that validates against ViewModel
Support Cursor results, and you can even validate the cursor result!
Sailor 是一个 Lua 语言的 MVC 编程框架。支持跨平台,兼容 mod_lua 或者 mod_pLua, Nginx 的 ngx_lua,
或者任何支持 CGI 的 Web 服务器,如 Civetweb 或者 Mongoose, 前提是必须有 CGILua
使用 Sailor 开发应用的目录结构如下:
/conf - 存放配置文件
/controllers - 控制器
/layouts - 布局文件
/models - 模型
/pub - 静态文件
/runtime - 运行时生成的临时文件
/views - .lp 视图文件
示例代码:
local site = {}
function site.index(page)
local foo = 'Hello world'
local User = sailor.model("user")
local u = User:new()
u.username = "etiene"
u.password = "a_password"
local valid, err = u:validate() -- validate() will check if your attributes
follow the rules!
if not valid then
foo = "Boohoo :("
end
-- Warning: this is a tech preview and some methods of model class do not
avoid SQL injections yet.
page:render('index',{foo=foo,name=u.username}) -- This will render
/views/site/index.lp and pass the variables 'foo' and 'name'
end
function site.notindex(page)
page:write('Hey you!')
end
return site
我觉得还是在于自己代码编写的问题。而且Activity本来就是控制层,所以里面大量的代码是非常正常的。造轮子问题还是在于你并没有把公共代码剥离出来。
1. Android 上还没有传统意义上的 MVC 框架。
2. 一个完整的 MVC 框架对于 Android 这样运行在资源受限设备之上的系统是否有必要?
3. 我更倾向于只在 Activity 中绘制 UI 并响应相关的事件,业务逻辑则更多的是在另外的线程或者 Service 之中进行。这样既可以避免 Activity 中出现大量代码,同时也避免出现 UI 阻塞的情况。
如果我的回答没能帮助您,请继续追问。
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