android导出为csv并作为电子邮件附件发送
android导出为csv并作为电子邮件附件发送
提问于 2011-03-23 13:09:51
我在这个网站上看到了很多讨论在android中发送带有附件的电子邮件的帖子。我尝试了here、here和here讨论的每一种方法。
我正在通过代码创建一个csv文件，并将此文件保存到android内部存储。然后我想把这个文件作为附件发送在电子邮件中。好了，电子邮件正在发送中，我正在收到它，没有附件。这就是我所做的。
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/ luck text“等，但仍未成功。有人能告诉我我哪里做错了吗？
回答 5
Stack Overflow用户
回答已采纳
发布于 2011-03-23 17:50:01
感谢每个人谁试图help..After花了一整天的时间，我已经从我的应用程序发送电子邮件与attachment..This是工作代码。
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);另外，如果你已经在机器上安装了你的手机SDCard，这个代码将不会工作。一次只有一个人可以访问SDCard。所以在这种情况下，将你的SDCard从computer和try..Thanks卸载给回答here..Also的人，确保你已经购买了在你的清单文件中写入外部存储的权限……
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"></uses-permission>希望这对每个想要帮助someone...Thanks的人都有帮助..
Stack Overflow用户
发布于 2012-07-13 21:29:10
此代码将帮助您解决问题
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
buttonSend = (Button) findViewById(R.id.buttonSend);
textTo = (EditText) findViewById(R.id.editTextTo);
textSubject = (EditText) findViewById(R.id.editTextSubject);
textMessage = (EditText) findViewById(R.id.editTextMessage);
buttonSend.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
String to = textTo.getText().toString();
String subject = textSubject.getText().toString();
String message = textMessage.getText().toString();
Intent i = new Intent(Intent.ACTION_SEND);
i.setType("plain/text");
File data = null;
try {
Date dateVal = new Date();
String filename = dateVal.toString();
data = File.createTempFile("Report", ".csv");
FileWriter out = (FileWriter) GenerateCsv.generateCsvFile(
data, "Name,Data1");
i.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(data));
i.putExtra(Intent.EXTRA_EMAIL, new String[] { to });
i.putExtra(Intent.EXTRA_SUBJECT, subject);
i.putExtra(Intent.EXTRA_TEXT, message);
startActivity(Intent.createChooser(i, "E-mail"));
} catch (IOException e) {
e.printStackTrace();
}
}
});
}
public class GenerateCsv {
public static FileWriter generateCsvFile(File sFileName,String fileContent) {
FileWriter writer = null;
try {
writer = new FileWriter(sFileName);
writer.append(fileContent);
writer.flush();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}finally
{
try {
writer.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
return writer;
}
}在AndroidManifest.xml文件中添加以下行：
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"></uses-permissionStack Overflow用户
发布于 2011-03-23 14:07:53
试一试
sendIntent.setType("message/rfc822");页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/5401104
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