使用cordova2.9和webworks在blackberry10上递归创建目录路径

Question

有人能向我解释一下这里发生了什么吗？下面的代码在安卓系统上运行得很好，但在黑莓10上不起作用。

对于数组中的前两个目录结构，我没有看到parentDir.getDirectory（）被调用，但是数组中的最后一个路径（"dir/3/dir6"）是在blackberry.io.home文件夹中的"parentFolder"文件夹中成功创建的。

var dirList;
// Wait for device API libraries to load
//
document.addEventListener("deviceready", onDeviceReady, false);

// device APIs are available
//
function onDeviceReady() {
    alert("device ready");
    blackberry.io.sandbox = false;
    dirList = ["dir1/dir4/", "dir2/dir5/", "dir3/dir6/"];
    getFileSystem();
}
function getFileSystem(){
    window.requestFileSystem(
            LocalFileSystem.PERSISTENT, 0,
            function onFileSystemSuccess(fileSystem)
            {
                console.log("Success getting filesystem !!!");
                createDirectoryRecursive(fileSystem);
            },
            function(error){
                console.log("Failed to get the filesystem !!!!!");
            }
        );
}
function createDirectoryRecursive(fs){
    var i;
    for(i = 0; i < dirList.length; i++){
        createDirs(fs.root, dirList[i], -1);
    }
}
function createDirs(parentDir, filePath, index)
{
    console.log("createDirs params ===> parentDir=" + parentDir.toURL() + " filePath=" + filePath + " index=" + index); 
    var arrDirs = filePath.split("/");
console.log("number of levels in path = " + arrDirs.length);
    if (index >= (arrDirs.length - 1))
    {
        console.log("Done with " + filePath);
    }
    else{
        var dirName = "parentFolder";
        if (index >= 0)
        {
            dirName = arrDirs[index];
            console.log("current dirName is " + dirName);
        }
        //if device is Blackberry, build up a full directory path as we are trying to install outside of sandbox
    var path, dirToCreate = ""
        if(device.platform == "blackberry10"){
            path = "parentFolder/";
            console.log("Paths ======> arrDirs = " + arrDirs + " index = " +index);
            for (i = 0; i <= index; i++){
                path += arrDirs[i] + "/";
                console.log("path = " + path + " i = " + i + " index = " +  index);
            }
            dirToCreate = blackberry.io.home + "/" + path;
            dirToCreate = dirToCreate.substring(0, dirToCreate.length - 1);
            console.log("Paths Trying to create " + dirToCreate);
            dirName = dirToCreate;
        }
        parentDir.getDirectory(dirName, {create: true, exclusive: false},
                               function (directoryEntry) {
                                        console.log("getDirectory callback =======> created directory " + directoryEntry.fullPath);
                                        console.log("getDirectory callback =======> Current arrdirs " + arrDirs);
                                        createDirs(directoryEntry, filePath, index + 1);
                                   },
                                   function (error) {console.log("Failed to get directory " + dirName + " Error code : " + error.code);});
    }
}

代码实际上为数组中的所有目录输入了cordova的DirectoryEntry.getDirectory函数，但没有调用回调（成功或失败）。只有列表中的最后一个目录路径在黑莓设备上被成功处理和创建。

Answer 1

我一直面临着同样的问题。值得你尝试一下，

window.webkitRequestFileSystem(window.PERSISTENT, 5*1024*1024, onSuccess, null);

而不是：

window.requestFileSystem（LocalFileSystem.PERSISTENT，5*1024*1024，onSuccess，null）；

在getFileSystem（）中。

当我浏览并找到这份文件时，我得到了更多信息：https://bbjam.blackberryconferences.net/asia2013/connect/fileDownload/session/52C12DB41EDB8F70FDF15253F02948B7/JAM847_BBJamAsia-JAM847.pdf

希望它对每个人都有效。