Question

我在将txt文件附加到gmail时遇到了一些麻烦。我调用了saveItToText（）方法，它从字符串值创建一个txt文件，并调用sendEmail（）将生成的txt文件附加到gmail，但是，当我打开gmail应用程序时，它说“无法附加空文件”。我可能在下面的代码中的逻辑中有一些错误。我想要做的就是将包含字符串的文件附加到电子邮件中。我在网上搜索但找不到一个好的解决方案。我很乐意听到你的消息！

 public void saveItToText(Context context, String sFileName, String sBody) {
        try {
            File root = new File(Environment.getExternalStorageDirectory().getAbsolutePath()
                    , mFileName);
            if (!root.exists()) {
                root.mkdirs();
            }
            File gpxfile = new File(root, sFileName);
            android.util.Log.d("Test","gpx "+root.toString());
            FileWriter writer = new FileWriter(root);
            writer.append(sBody);
            writer.flush();
            writer.close();
            Toast.makeText(context, "Saved", Toast.LENGTH_SHORT).show();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    private void sendEmail(String email) {

        File file = new File(Environment.getExternalStorageDirectory().getAbsolutePath()
                , mFileName);
        Uri path = Uri.fromFile(file);
        android.util.Log.d("Test", "path: "+path.toString());
        Intent intent = new Intent(android.content.Intent.ACTION_SEND);
        intent.setType("application/octet-stream");
        //intent.putExtra(android.content.Intent.EXTRA_SUBJECT, subject);
        String to[] = { email };
        intent.putExtra(Intent.EXTRA_EMAIL, to);
        intent.putExtra(Intent.EXTRA_TEXT, mUrl);
        intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
        intent.addFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
        intent.putExtra(Intent.EXTRA_STREAM, path);
        startActivityForResult(Intent.createChooser(intent, "Send mail..."),
                1222);
    }

    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (requestCode == 1222) {
            File file = new File(Environment.getExternalStorageDirectory().getAbsolutePath()
                    , mFileName);
            file.delete();
        }
    }

无法保存String文本并将其附加到android中的邮件

0 个答案: