android - 如何从res/raw文件夹复制一个xml文件到android的sd卡？

Question

我想从 res/raw 文件夹复制一个 xml 文件到 sd 卡。这个问题实际上是特定于 ODK Collect 的。但任何帮助将不胜感激。我看过Android: How to create a directory on the SD Card and copy files from /res/raw to it?和网上其他类似的帖子，但我仍然无法复制。可能是因为我正在开发 ODK Collect。这是我复制文件的代码:

       try {
         InputStream in = getResources().openRawResource(R.raw.problem2);
         OutputStream out = new FileOutputStream(Collect.FORMS_PATH+"/problem2");

                // Transfer bytes from in to out
                byte[] buf = new byte[1024];
                int len;
                while ((len = in.read(buf)) > 0) {
                    out.write(buf, 0, len);
                }
                in.close();
                out.close();

        }           
     catch(IOException e) { }

提前致谢。

Answer 1

试试这个:

private void copyFiles() throws IOException{

        InputStream myInput = m_Context.getAssets().open(FILE_NAME_KEPT_IN_ASSET_FOLDER);
        String outFileName = "/data/data/your.package.name/folder/";
        OutputStream myOutput = new FileOutputStream(outFileName);
        byte[] buffer = new byte[1024];
        int length;
        while ((length = myInput.read(buffer))>0){
            myOutput.write(buffer, 0, length);
        }
        myOutput.flush();
        myOutput.close();
        myInput.close();

    }