cocos3——5.js获取文件夹下文件列表

1.C++：

#include <iostream>
#include <fstream>
#include <vector>
#include <string>

#include "cocos2d.h"

#if CC_TARGET_PLATFORM == CC_PLATFORM_WIN32
#include <windows.h>
#include <strsafe.h>

#else
#include <dirent.h>

#endif

namespace fs
{

	int readDir( const char *path, vector<string> &names )
	{
		names.clear();

#if CC_TARGET_PLATFORM == CC_PLATFORM_WIN32
		WIN32_FIND_DATAA ffd;
		//LARGE_INTEGER filesize;
		string szDir;
		//size_t length_of_arg;
		HANDLE hFind = INVALID_HANDLE_VALUE;
		DWORD dwError=0;

		string strDir = path;
		szDir = strDir + "\\*";
		hFind = FindFirstFileA(szDir.c_str(), &ffd);

		if (INVALID_HANDLE_VALUE == hFind)
		{
			//CCLOGWARN("get file name error", path);
			return 0;
		}
		do
		{
			if (!(ffd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY))
			{
				string filename=ffd.cFileName;//(const char*)
				//string filedir=strDir+"\\"+filename;
				string filedir = filename;
				names.push_back(filedir);
			}
		}while (FindNextFileA(hFind, &ffd) != 0);

		dwError = GetLastError();
		if (dwError != ERROR_NO_MORE_FILES)
		{
			//CCLOGWARN("FindFirstFile error", path);
			return 0;
		}
		FindClose(hFind);

#else
		DIR *dp = opendir(path);
		if (!dp) {
			//CCLOGWARN("open dir error: %s.", path);
			return 0;
		}

		struct dirent *dirp = readdir(dp);
		while (dirp) {
			if (!strcmp(dirp->d_name,".") || !strcmp(dirp->d_name,".."))
				continue;
			names.push_back(dirp->d_name);
		}
		closedir(dp);
		sort(names.begin(), names.end());
#endif

		return names.size();
	}
}

2.绑定js：

bool js_fs_readDir(JSContext *cx, uint32_t argc, jsval *vp)
{
	if (argc == 1) {
		// get the native object from the second object to the first object
		jsval *argv = JS_ARGV(cx, vp);
		string path;
		jsval_to_std_string(cx, argv[0], &path);
		vector<string> names;
		fs::readDir(path.c_str(), names);

		jsval jsret = JSVAL_NULL;
		jsret = std_vector_string_to_jsval(cx, names);
		JS_SET_RVAL(cx, vp, jsret);
		return true;
	}
	return false;
}

3.js调用：

var files = fs.readdir(full_path);

PS: 这里要传全路径，貌似android要把文件拷到可写路径去才能获取到文件列表。。