无法在nexus5上创建名为.dirname的目录

Question

我无法在android kitket(Nexus5)中创建名为.dirname的目录。所以请建议我该怎么做来解决这个problem.when，我调用mkdirs()方法，它返回false，但是我已经在安卓清单文件上设置了所有权限。

以下是我的代码：

Map<String, File> externalLocations = ExternalStorage
                .getAllStorageLocations();
        File sdCard = externalLocations.get(ExternalStorage.SD_CARD);
        File externalSdCard = externalLocations
                .get(ExternalStorage.EXTERNAL_SD_CARD);
        Environment.getExternalStorageState();
       // long count = System.currentTimeMillis();
        if (sdCard == null) {
            path = null;
        } else { 
            path = sdCard.getAbsolutePath().toString() +"/.DriverMaticsV/" + "12345" + "/Picture/";
        }
        if (externalSdCard != null) {
            if (storageLocInt == 0) {
                path = sdCard.getAbsolutePath().toString() +"/.DriverMaticsV/" + "12345" + "/Picture/";
            } else {
                path = externalSdCard.getAbsolutePath().toString() + "/.DriverMaticsV/" + "12345" + "/Picture/";
            }
        }
        File file = new File(path);
        if (!file.exists()) {
            boolean result = file.mkdirs();
            Utilities.showDLog("CamperaUtil", ""+result);
        }

Android Manifest权限：-

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<application>.....</application>

Answer 1

我认为"dirname“在linux中是命令名，你不能在linux中用命令名创建目录，我建议将android设备连接到windows机器上，并在Windows命令提示符下创建目录。