如何获取Chrome扩展程序子文件夹中的文件名列表？ [英] How do I get a list of filenames in a subfolder of a Chrome extension?

问题描述

我想知道是否可以获取Chrome扩展的子文件夹中所有文件的文件名列表。

I was wondering if it is possible to get a list of filenames of all files in a subfolder of a Chrome extension.

谢谢！

推荐答案

使用 chrome.runtime.getPackageDirectoryEntry 方法为Chrome扩展程序获取 DirectoryEntry ，然后使用 FileSystem API 查询其内容

Use the chrome.runtime.getPackageDirectoryEntry method to get a DirectoryEntry for the Chrome extension, then use the FileSystem API to query its contents

chrome.runtime.getPackageDirectoryEntry(function(directoryEntry) {
    var directoryReader = directoryEntry.createReader();
    // List of DirectoryEntry and/or FileEntry objects.
    var filenames = [];
    (function readNext() {
        directoryReader.readEntries(function(entries) {
            if (entries.length) {
                for (var i = 0; i < entries.length; ++i) {
                    filenames.push(entries[i].name);
                }
                readNext();
            } else {
                // No more entries, so all files in the directory are known.
                // Do something, e.g. print all file names:
                console.log(filenames);
            }
        });
    })();
});

这是一个基本的例子，列出了所有文件和目录的名称您的Chrome扩展程序包的根目录。如果您想查询特定目录的内容，那么您需要先获取该条目。例如。列出 _locales 目录的内容。第二个参数应该是Object实例：

This is a basic example that lists the names of all files and directories of the root in your Chrome extension package. If you want to query the contents of a specific directory, then you need to get that entry first. E.g. to list the contents of the _locales directory. Second parameter should be the Object instance:

directoryEntry.getDirectory('_locales', {}, function(subDirectoryEntry) {
    var directoryReader = subDirectoryEntry.createReader();
    // etc.. same code as in previous snippet.
});

这篇关于如何获取Chrome扩展程序子文件夹中的文件名列表？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！