PhoneGap的/科尔多瓦黑莓FileSystem.root总是返回SD卡？ [英] PhoneGap/Cordova BlackBerry FileSystem.root always returns SD card?

问题描述

我有两个应用程序，我装上一个黑莓手机，一种是本地应用程序，另一种是基于PhoneGap的/科尔多瓦的应用程序。

I have two applications I'm loading on a BlackBerry, one is a native application, the other is a PhoneGap / Cordova based application.

这两个应用程序共享的设置文件：文件：///store/home/user/myfile.txt

These two applications share a settings file: file:///store/home/user/myfile.txt

要通过科尔多瓦访问该文件，我呼吁：

To access this file via Cordova, I call:

fileSystem.root.getFile（家用/用户/ myfile.txt的，空，gotFileEntry，失败）;

然而，在某些设备上 fileSystem.root 返回SD卡目录，而不是内部存储器所在的文件存储，所以我得到一个 FileNotFound 错误。

However, on some devices fileSystem.rootreturns the SDCard directory, not the internal memory where the file is stored, so I get a FileNotFound error.

我已经打过电话 fileSystem.root.getParent（gotParent，失败）; ，希望能得到文件系统的根目录，然后得到像内部存储器中的文件所以：

I've tried calling fileSystem.root.getParent(gotParent, fail);, hoping to get the root of the filesystem, then get the file from internal memory like so:

parentDir.getFile（存储/ home / user中/ myfile.txt的，空，gotFileEntry，失败）;

但是，这也不行，我仍然收到找不到错误的文件。

But that doesn't work either, I still receive a file not found error.

我如何获得内部存储器中的每一次的根目录中，使用的PhoneGap /科尔多瓦？

How can I get the root directory of the internal memory every time, using PhoneGap/Cordova?

推荐答案

你用什么版本的科尔多瓦？结果
科尔多瓦因为黑莓WebWorks的（OS文件-API 支持5.0和更高）。

What version of Cordova do you use?
Cordova File-API is supported since BlackBerry WebWorks (OS 5.0 and higher).

我是正确的，你只需要读（写），该文件假设？结果
如果是的话，你可以尝试使用科尔多瓦文件阅读器和科尔多瓦文件的作家。

Am I right in the assumption that you only want to read (and write) that file?
If so you can try to use the Cordova File-Reader and the Cordova File-Writer.

的FileReader

function win(file) {
    var reader = new FileReader();
    reader.onloadend = function(evt) {
        console.log("read success");
        console.log(evt.target.result);
    };
    reader.readAsText(file);
};

var fail = function(evt) {
    console.log(error.code);
};

entry.file(win, fail);

的FileWriter

function win(writer) {
    writer.onwrite = function(evt) {
        console.log("write success");
    };
    writer.seek(writer.length);
    writer.write("appended text");
};

var fail = function(evt) {
    console.log(error.code);
};

entry.createWriter(win, fail);

，否则把那片段一试（code是一个老项目，但当时工作）

Otherwise give that snippet a try (code is of an old project but worked at that time)

<script type="text/javascript" charset="utf-8" src="css-js/phonegap-1.0.0.js"></script>
<script type="text/javascript" charset="utf-8">

// Wait for PhoneGap to load
//
document.addEventListener("deviceready", onDeviceReady, false);

// PhoneGap is ready
//
function onDeviceReady() {
    window.requestFileSystem(LocalFileSystem.PERSISTENT, 0, gotFS, fail);

}

function gotFS(fileSystem) {
    var path = "readme.txt";
    fileSystem.root.getFile(path, {create: true, exclusive: false}, gotFileEntry, fail);

}

function gotFileEntry(fileEntry) {

    fileEntry.createWriter(gotFileWriter, fail);
}

function gotFileWriter(writer) {
    writer.onwrite = function(evt) {
        console.log("write success");
    };
    writer.write("some sample text");

我希望我可以帮你，最好的问候
F481

I hope I could help you, best regards F481

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