android导出到csv和作为电子邮件附件发送 [英] android exporting to csv and sending as email attachment

问题描述

我已经看到多个线程在这个网站讨论关于发送电子邮件与附件在android。我尝试了此处讨论的每种方法，在这里和这里。

I have seen multiple threads in this site discussing about sending email with attachments in android. I tried every methods discussed here, here and here.

我通过代码和保存创建一个csv文件这个文件到android内部存储。然后我想在电子邮件中将此文件作为附件发送。好吧，电子邮件正在发送，我得到它没有附件。这是我做的。

I am creating a csv file via code and saving this file to android internal storage. Then I want to send this file as attachment in an email. Well, the email is being sent, I am getting it without attachment. This is what I have done.

String columnString         =   "\"Person\",\"Gender\",\"Street1\",\"PostOfice\",\"Age\"";
String dataString           =   "\"" + currentUser.userName +"\",\"" + currentUser.gender + "\",\"" + currentUser.street1 + "\",\"" + currentUser.poNumber.toString() + "\",\"" + currentUser.age.toString() + "\"";
String combinedString       =   columnString + "\n" + dataString;
File file                   =   new File(this.getCacheDir()+ File.separator + "Data.csv");
try {
    FileOutputStream out    =   new FileOutputStream(file);
    out.write(combinedString.getBytes());
    out.close();
} catch (IOException e) {
    Log.e("BROKEN", "Could not write file " + e.getMessage());
}   
Uri u1                      =   Uri.fromFile(file);

Intent sendIntent = new Intent(Intent.ACTION_SEND);
sendIntent.putExtra(Intent.EXTRA_SUBJECT, "Person Details");
sendIntent.putExtra(Intent.EXTRA_STREAM, u1);
sendIntent.setType("text/richtext");
startActivity(sendIntent);

我尝试将mime设置更改为text / html和text / richtext运气。任何人都可以告诉我我做错了什么？

I tried changing mime settings to "text/html" and "text/richtext" etc. But no luck yet. Can anyone tell me what I am doing wrong?

推荐答案

感谢大家谁尝试帮助。从我的应用程序发送电子邮件附件。这是工作代码..

Thanks for everyone who tried to help..After taking a full day I have send an email from my app with attachment..This is the working code..

String columnString =   "\"PersonName\",\"Gender\",\"Street1\",\"postOffice\",\"Age\"";
String dataString   =   "\"" + currentUser.userName +"\",\"" + currentUser.gender + "\",\"" + currentUser.street1 + "\",\"" + currentUser.postOFfice.toString()+ "\",\"" + currentUser.age.toString() + "\"";
String combinedString = columnString + "\n" + dataString;

File file   = null;
File root   = Environment.getExternalStorageDirectory();
if (root.canWrite()){
    File dir    =   new File (root.getAbsolutePath() + "/PersonData");
     dir.mkdirs();
     file   =   new File(dir, "Data.csv");
     FileOutputStream out   =   null;
    try {
        out = new FileOutputStream(file);
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        }
        try {
            out.write(combinedString.getBytes());
        } catch (IOException e) {
            e.printStackTrace();
        }
        try {
            out.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}
Uri u1  =   null;
u1  =   Uri.fromFile(file);

Intent sendIntent = new Intent(Intent.ACTION_SEND);
sendIntent.putExtra(Intent.EXTRA_SUBJECT, "Person Details");
sendIntent.putExtra(Intent.EXTRA_STREAM, u1);
sendIntent.setType("text/html");
startActivity(sendIntent);

此外，如果您已将SDCard安装在机器上，此代码将无法正常工作。只有一个用户可以一次访问SDCard。所以在这种情况下卸载你的SD卡从计算机，并尝试...感谢谁回答这里 ..还请确保您已在您的清单文件中购买了写入外部存储的权限...

Also If you have mounted your phone SDCard in the machine , this code wont work. Only one can access SDCard at one time. So in that case unmount your SDCard from computer and try..Thanks to the guy who answered here..Also make sure you have bought permission to write to external Storage in your manifest file...

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"></uses-permission>

希望它帮助某人...感谢大家谁尝试帮助..

Hope it helps someone...Thanks for everyone who tried to help..

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