Android获得内/外置存储卡路径的方法

StorageManager storageManager = (StorageManager) cxt.getSystemService(Context.STORAGE_SERVICE);      try {        Method method = StorageManager.class.getDeclaredMethod("getVolumePaths");        method.setAccessible(true);        Object result = method.invoke(storageManager);        if (result != null && result instanceof String[]) {          String[] pathes = (String[]) result;          StatFs statFs;          for (String path : pathes) {            if (!TextUtils.isEmpty(path) && new File(path).exists()) {              statFs = new StatFs(path);              if (statFs.getBlockCount() * statFs.getBlockSize() != 0) {                pathsList.add(path);              }            }          }        }      } catch (Exception e) {        e.printStackTrace();        File externalFolder = Environment.getExternalStorageDirectory();        if (externalFolder != null) {          pathsList.add(externalFolder.getAbsolutePath());        }      }    }    return pathsList.toArray(new String[pathsList.size()]);