Question

我使用android intent将sd卡中的pdf文件发送到电子邮件地址。它显示我附加的pdf文件，但这个附加文件在reviver端消失。我不知道我做错了什么。这是我的代码

          String[] mailto = {"me@hotmail.com"};
          Uri uri = Uri.parse(getExternalFilesDir(filepath)+"/"+filename);

          Intent emailIntent = new Intent(Intent.ACTION_SEND);
          emailIntent.putExtra(Intent.EXTRA_EMAIL, mailto);
          emailIntent.putExtra(Intent.EXTRA_SUBJECT, "testing");
          emailIntent.putExtra(Intent.EXTRA_TEXT, "hoooo");
          emailIntent.setType("application/pdf");
          emailIntent.putExtra(Intent.EXTRA_STREAM, uri);

          startActivity(Intent.createChooser(emailIntent, "Send email using:"));

非常感谢任何帮助，谢谢：）

Answer 1

使用此代码通过gmail共享pdf文件。

 Intent email = new Intent(Intent.ACTION_SEND);

 email.putExtra(Intent.EXTRA_SUBJECT, mSubjectEditText.getText().toString());

 email.putExtra(Intent.EXTRA_TEXT, mBodyEditText.getText().toString());

 Uri uri = Uri.parse("file://" + myFile.getAbsolutePath());

 email.putExtra(Intent.EXTRA_STREAM, uri);

 email.setType("message/rfc822");

 startActivity(email);

Answer 2

这是我通过gmail共享pdf文件的工作代码。

    ArrayList<Uri> uriList = new ArrayList<Uri>();
    ArrayList<String> fileNameList = new ArrayList<String>();
    uriList.add(Uri.fromFile(f));
    fileNameList.add(f.getName());

    final Intent emailIntent = new Intent(android.content.Intent.ACTION_SEND_MULTIPLE);
    emailIntent.setType("text/plain");
    emailIntent.putExtra(android.content.Intent.EXTRA_EMAIL,
            new String[]{""});
    emailIntent.putExtra(android.content.Intent.EXTRA_CC,
            new String[]{""});
    emailIntent.putExtra(Intent.EXTRA_SUBJECT, "Heres the PDF you wanted!");

    if (!uriList.isEmpty()) {
        emailIntent.putParcelableArrayListExtra(Intent.EXTRA_STREAM, uriList);
        emailIntent.putStringArrayListExtra(Intent.EXTRA_TEXT, fileNameList);
    }

Answer 3

秘密在乌里。

Uri imageUri = FileProvider.getUriForFile(
        MainActivity.this,
        "com.example.homefolder.example.provider", //(use your app signature + ".provider" )
        pdfFile);

没有清单

<application>
 ...
  <provider
    android:name="android.support.v4.content.FileProvider"
    android:authorities="com.example.homefolder.example.provider"
    android:exported="false"
    android:grantUriPermissions="true">
    <!-- ressource file to create -->
    <meta-data
        android:name="android.support.FILE_PROVIDER_PATHS"
        android:resource="@xml/file_paths">  
    </meta-data>
  </provider>
</application>

如此

emailIntent.setType("application/pdf");
emailIntent.putExtra(Intent.EXTRA_STREAM, uri);

PDF文件附加在app内，但不会使用android Intent发送

3 个答案: