在lua中遍历目录文件需要用到lfs库,而所用的cocos2dx 3.10没用lfs,需要自己添加

1、下载lfs.c和lfs.h

https://github.com/keplerproject/luafilesystem

从github获取源码,在src目录拷贝lfs.c和lfs.h到cocos2d项目下cocos2d\external\lua\luafilesystem(luafilesystem为自己新建的文件夹)

2、在VS解决方案libluacocos2d项目下添加luafilesystem文件夹筛选器并承载lfs.c和lfs.h

3、修改lua_extensions.c文件

lua_extensions.c文件在cocos2d\cocos\scripting\lua-bindings\manual\network\目录下

新增如下两行代码:

#include "luafilesystem/lfs.h"

{"lfs", luaopen_lfs},
代码位置如下:

#include "lua_extensions.h"
#if __cplusplus
extern "C" {
#endif
// socket
#include "luasocket/luasocket.h"
#include "luasocket/luasocket_scripts.h"
#include "luasocket/mime.h"
#include "luafilesystem/lfs.h"
static luaL_Reg luax_exts[] = {
{"socket.core", luaopen_socket_core},
{"mime.core", luaopen_mime_core},
{"lfs", luaopen_lfs},
{NULL, NULL}
};
...

4、发布到安卓要修改Android.mk

在cocos2d\cocos\scripting\lua-bindings\proj.android目录下修改Android.mk

新增一行lfs.c路径

../../../../external/lua/luafilesystem/lfs.c

#network
LOCAL_SRC_FILES += ../manual/network/lua_cocos2dx_network_manual.cpp
../manual/network/lua_extensions.c
../manual/network/Lua_web_socket.cpp
../manual/network/lua_xml_http_request.cpp
../../../../external/lua/luasocket/auxiliar.c
../../../../external/lua/luasocket/buffer.c
../../../../external/lua/luasocket/except.c
../../../../external/lua/luasocket/inet.c
../../../../external/lua/luasocket/io.c
../../../../external/lua/luasocket/luasocket.c
../../../../external/lua/luasocket/luasocket_scripts.c
../../../../external/lua/luasocket/mime.c
../../../../external/lua/luasocket/options.c
../../../../external/lua/luasocket/select.c
../../../../external/lua/luasocket/serial.c
../../../../external/lua/luasocket/tcp.c
../../../../external/lua/luasocket/timeout.c
../../../../external/lua/luasocket/udp.c
../../../../external/lua/luasocket/unix.c
../../../../external/lua/luasocket/usocket.c
../../../../external/lua/luafilesystem/lfs.c
5、lua遍历文件范例(删除指定目录)
require "lfs"
local function removeDir(path)
print("os.rmdir:", path)
if cc.FileUtils:getInstance():isDirectoryExist(path) then
local function _rmdir(path)
local iter, dir_obj = lfs.dir(path)
while true do
local dir = iter(dir_obj)
if dir == nil then break end
if dir ~= "." and dir ~= ".." then
local curDir = path..dir
local mode = lfs.attributes(curDir, "mode")
if mode == "directory" then
_rmdir(curDir.."/")
elseif mode == "file" then
cc.FileUtils:getInstance():removeFile(curDir)
end
end
end
local succ, des = cc.FileUtils:getInstance():removeDirectory(path)
if des then print(des) end
return succ
end
_rmdir(path)
end
return true
end