//創(chuàng)建文件夾

    File destDir = new File(“/data/data/[your path]/temp”);
      if (!destDir.exists()) {
       destDir.mkdirs();
        }

//首先判斷sdcard是否插入

    String status = Environment.getExternalStorageState();
      if (status.equals(Environment.MEDIA_MOUNTED)) {
       return true;
      } else {
       return false;
      }