允许Android外部写入但未找到文件异常

时间:2011-09-13 08:02:05

标签: android android-sdcard filenotfoundexception

在我试图写入文件的模拟器中:

/mnt/sdcard/Android/data/com.Me.MyApp/files/myFile.txt

我在Manifest中设置了外部写权限,但我一直收到一个找不到文件的异常。模拟器配置为具有SD卡。

为什么会这样?

InputStream is = c.getResources().openRawResource(R.raw.my_raw_file);
ZipInputStream zis = new ZipInputStream(new BufferedInputStream(is));

try
{
  while (zis.getNextEntry() != null)
  {
    File destFile = new File(destinationPath);
    // EXCEPTION THROWN NEXT LINE!
    OutputStream os = new FileOutputStream(destFile);

    byte[] buffer = new byte[BUF_SIZE];
    int count;
    while ((count = zis.read(buffer)) != -1)
    {
      os.write(buffer, 0, count);
    }
  }
}
catch (IOException e)
{
  e.printStackTrace();
}

try
{
  zis.close();
}
catch (IOException e)
{
  e.printStackTrace();
}

2 个答案:

答案 0 :(得分:3)

尝试以下代码

String path = "/mnt/sdcard/Android/data/com.Me.MyApp/files";

File mFile = new File(path);
mFile.mkdirs();

答案 1 :(得分:1)

Nammari的回答加上:

Android教程:在仿真器中创建和使用SD卡
http://www.streamhead.com/android-tutorial-sd-card/