Question

在使用文件传输插件的PhoneGap 3.3 android应用程序中，这是getFile方法的主体

private JSONObject getFile(String baseURLstr, String path, JSONObject options, boolean directory) throws FileExistsException, IOException, TypeMismatchException, EncodingException, JSONException {
        try {
            LocalFilesystemURL inputURL = new LocalFilesystemURL(baseURLstr);
            Filesystem fs = this.filesystemForURL(inputURL);
            if (fs == null) {
                throw new MalformedURLException("No installed handlers for this URL");
            }
            return fs.getFileForLocalURL(inputURL, path, options, directory);

        } catch (IllegalArgumentException e) {
            throw new MalformedURLException("Unrecognized filesystem URL");
        }

    }

调用

时，Filesystem fs始终为null

fileSystem.root.getFile('text.txt', { create: true, exclusive: false }, function (fileEntry) {}, fail);

或

fileSystem.root.getDirectory('newDir', { create: true, exclusive: false }, function (parent) {}, fail);

这是javascript代码和日志结果

downloadAgendaPage = function () {
    window.requestFileSystem(LocalFileSystem.PERSISTENT, 0, gotFS, fail);
}

function gotFS(fileSystem) {
    console.log("Emaish: FileSystem Requested");
    console.log("Emaish: fileStream.name = " + fileSystem.name);
    console.log("Emaish: fileStream.root.name = " + fileSystem.root.name);
    fileSystem.root.getFile("text.txt", {create: true, exclusive: false}, gotFileEntry, fail);
}

function gotFileEntry(fileEntry) {
    console.log("Emaish: File Gotten");
    var uri = encodeURI("http://****/data/MYOEB2013_Agenda.ics");
    console.log("Emaish: uri:" + uri);
    var sPath = fileEntry.fullPath.replace("text.txt", "Agenda.ics");
    console.log("Emaish: sPath:" + sPath);
    fileEntry.remove();
    var fileTransfer = new FileTransfer();
    fileTransfer.download(
        uri,
        sPath,
        function (theFile) {
            console.log("download complete: " + theFile.toURI());
            //showLink(theFile.toURI());
            alertify.alert("Agenda downloaded to " + theFile.toURI());
        },
        function (error) {
            console.log("download error source " + error.source);
            console.log("download error target " + error.target);
            console.log("upload error code: " + error.code);
        }
    );
}

Console.log结果

02-20 16:15:37.205: I/chromium(23491): [INFO:CONSOLE(59)] "Emaish: FileSystem Requested", source: file:///android_asset/www/js/agenda.js (59)
02-20 16:15:37.205: I/chromium(23491): [INFO:CONSOLE(60)] "Emaish: fileStream.name = persistent", source: file:///android_asset/www/js/agenda.js (60)
02-20 16:15:37.205: I/chromium(23491): [INFO:CONSOLE(61)] "Emaish: fileStream.root.name = ", source: file:///android_asset/www/js/agenda.js (61)

因此抛出了新的MalformedURLException（＆＃34;没有为此URL安装处理程序＆＃34;）;

Answer 1

问题在于我添加插件并构建我的应用程序的方式，您需要在添加插件后构建您的应用程序，以便将插件js文件正确复制到www文件夹并更新cordova_plugins.js

PhoneGap this.filesystemForURL（inputURL）在调用getFile或getDirectory时返回null

1 个答案: