如何获取PhoneGap将看到的android目录中的文档

我希望能够将一些文件复制到我的PhoneGap/Cordova的Documents目录中，以便在我使用Cordova插件文件API列出该目录时显示这些文件。不幸的是，在文件API和平板电脑存储的实际布局之间似乎存在一些脱节。以下是文件插件规范所述的系统目录结构：

Android文件系统布局

• file:///android_asset/

  | cordova.file.applicationDirectory

• file:///android_asset/data/data//

  | cordova.file.applications存储目录

• file:///android_asset/data/data//cache

  | cordova.file.cacheDirectory

• file:///android_asset/data/data//files

  | cordova.file.dataDirectory

• file:///android_asset/data/data//Documents

  | cordova.file.documents

• /

  | cordova.file.externalRootDirectory

• /Android/data/

  | cordova.file.externalapplications存储目录

• /Android/data//cache

  | cordova.file.externalCacheDirectry

• /Android/data//files

  | cordova.file.externalDataDirectory

不幸的是，当我将我的设备（4.4.2/联想平板电脑）插入我的PC或Mac电脑时，我没有看到这一点。相反，我看到：

- Internal Storage
|- .IdeaDesktopHD
|- .lelauncher
|- .magic
|- .powercenterhd
|- Alarms
|- Android
|- Audio
|- Bluetooth
|- Contact
|- data
|- DCIM
|- Document
|- Download
|- googleota
|- legc
|- LenovoReaper
|- LesyncDownload
|- Movies
|- MyFavorite
|- Notifications
|- Others
|- Pictures
|- Podcasts
|- powercenterhd
|- Ringtones
|- SHAREit

---

你知道我应该在哪里复制文件以便我的应用程序可以看到它们吗？

好了。我的部分问题是，我被cordova上文件系统/cordova插件文件API的异步特性所困扰。我必须进行一些代码重构以使文件列表正确显示，但一旦我进行了重构，文件就会正确显示，无论它们在设备上的什么位置

这是适用的代码。请注意，您需要将cordova插件文件添加到cordova/PhoneGap项目中，并且它在浏览器中不起作用。我实际上在另一个if/then块中有这个块——如果它在浏览器中运行，则显示html5

，如果它在移动设备中，则显示此块：

var localURLs    = [
    cordova.file.dataDirectory,
    cordova.file.documentsDirectory,
    cordova.file.externalApplicationStorageDirectory,
    cordova.file.externalCacheDirectory,
    cordova.file.externalRootDirectory,
    cordova.file.externalDataDirectory,
    cordova.file.sharedDirectory,
    cordova.file.syncedDataDirectory
];
var index = 0;
var i;
var statusStr = "";
var addFileEntry = function (entry) {
    var dirReader = entry.createReader();
    dirReader.readEntries(
        function (entries) {
            var fileStr = "";
            var i;
            for (i = 0; i < entries.length; i++) {
                if (entries[i].isDirectory === true) {
                    // Recursive -- call back into this subdirectory
                    addFileEntry(entries[i]);
                } else {
                   fileStr += (entries[i].fullPath + "<br>"); // << replace with something useful
                   index++;
                }
            }
            // add this directory's contents to the status
            statusStr += fileStr;
            // display the file list in #results
            if (statusStr.length > 0) {
                $("#results").html(statusStr);
            } 
        },
        function (error) {
            console.log("readEntries error: " + error.code);
            statusStr += "<p>readEntries error: " + error.code + "</p>";
        }
    );
};
var addError = function (error) {
    console.log("getDirectory error: " + error.code);
    statusStr += "<p>getDirectory error: " + error.code + ", " + error.message + "</p>";
};
for (i = 0; i < localURLs.length; i++) {
    if (localURLs[i] === null || localURLs[i].length === 0) {
        continue; // skip blank / non-existent paths for this platform
    }
    window.resolveLocalFileSystemURL(localURLs[i], addFileEntry, addError);
}

然后，最好是在应用程序启动代码的某个地方（即设备就绪事件的处理程序），检查运行时权限，并在需要时添加它们：

if (device.platform === "Android") {
    // request read access to the external storage if we don't have it
    cordova.plugins.diagnostic.getExternalStorageAuthorizationStatus(function (status) {
        if (status === cordova.plugins.diagnostic.permissionStatus.GRANTED) {
            console.log("External storage use is authorized");
        } else {
            cordova.plugins.diagnostic.requestExternalStorageAuthorization(function (result) {
                console.log("Authorization request for external storage use was " + (result === cordova.plugins.diagnostic.permissionStatus.GRANTED ? "granted" : "denied"));
            }, function (error) {
                console.error(error);
            });
        }
    }, function (error) {
        console.error("The following error occurred: " + error);
    });
}

if (device.platform === "Android") {
    // request read access to the external storage if we don't have it
    cordova.plugins.diagnostic.getExternalStorageAuthorizationStatus(function (status) {
        if (status === cordova.plugins.diagnostic.permissionStatus.GRANTED) {
            console.log("External storage use is authorized");
        } else {
            cordova.plugins.diagnostic.requestExternalStorageAuthorization(function (result) {
                console.log("Authorization request for external storage use was " + (result === cordova.plugins.diagnostic.permissionStatus.GRANTED ? "granted" : "denied"));
            }, function (error) {
                console.error(error);
            });
        }
    }, function (error) {
        console.error("The following error occurred: " + error);
    });
}