无法多个文件附加到Android的电子邮件(Unable to attach multiple fi

我想将多个文件附加到电子邮件。

首先我准备的清单Uri的。

void prepareListOfUri()
{
    listOfUri = new ArrayList<Uri>();
    File fileTemp = new File(android.os.Environment.getExternalStorageDirectory(), "BuyNowImages");
    fileTemp.mkdirs();

    for (int i = 0; i < listOfImageView.size(); i++)
    {
        try
        {
            ByteArrayOutputStream bos = new ByteArrayOutputStream();
            Drawable drawable = listOfImageView.get(i).getDrawable();
            Bitmap bitmapPicked = ((BitmapDrawable) drawable).getBitmap();
            bitmapPicked.compress(CompressFormat.JPEG, 75, bos);
            byte[] image = bos.toByteArray();
            File file = new File(fileTemp, "buynow_product" + i + ".jpg");
            file.createNewFile();
            // write the bytes in file
            FileOutputStream fo = new FileOutputStream(file);
            fo.write(image);
            Uri uri = Uri.parse("file://" + file.getAbsolutePath());
            listOfUri.add(i, uri);
        } catch (Exception e)
        {
            // TODO: handle exception
            e.printStackTrace();
        }
    }
}

以及用于连接和发送电子邮件

void sendMultipleAttachments()
    {
        try
        {
            Intent intentEmail = new Intent(Intent.ACTION_SEND);
            intentEmail.setType("text/plain");
            String[] recipients = new String[] { "" };

            intentEmail.putExtra(Intent.EXTRA_EMAIL, recipients);
            intentEmail.putExtra(Intent.EXTRA_SUBJECT, "subject of email");
            intentEmail.putExtra(Intent.EXTRA_TEXT, "body of email");
            intentEmail.setType("image/jpeg");
            intentEmail.putParcelableArrayListExtra(Intent.EXTRA_STREAM, listOfUri);
            startActivity(intentEmail);
        } catch (android.content.ActivityNotFoundException ex)
        {
            Toast.makeText(this, "There are no email clients installed.", Toast.LENGTH_SHORT).show();
            ex.printStackTrace();
        } catch (Exception e)
        {
            e.printStackTrace();
            Toast.makeText(this, "Exception " + e.getMessage(), Toast.LENGTH_SHORT).show();
        }
    }

我已经检查的列表Uri被单独发送的每个文件完全准备的。 但是，通过使用上面的代码发送多个文件，我得到以下Exception 。

Key android.intent.extra.STREAM expected Parcelable but value was a java.util.ArrayList.  The default value <null> was returned.

Answer 1:

取而代之的Intent.ACTION_SEND我用Intent.ACTION_SEND_MULTIPLE和它的工作。

从开发者文档 ：

活动措施：多数据传递给别人。 像ACTION_SEND ，除了数据是多个。

Answer 2:

您可以使用使用意图阵列意图和startActivity的数组。

Answer 3:

如果（AndroidUtil.isValidaEmail（电子邮件））{

        Intent intent = new Intent(Intent.ACTION_SEND_MULTIPLE);

        BitmapFactory.Options options = new BitmapFactory.Options();  
        options.inPreferredConfig = Bitmap.Config.ARGB_8888;      
        Bitmap bmp = BitmapFactory.decodeByteArray(Produto.getTodosProdutos().get(0).getAnexo(), 0, Produto.getTodosProdutos().get(0).getAnexo().length, options); 

        String path = Images.Media.insertImage(getActivity().getContentResolver(), bmp,"title", null);
        Uri screenshotUri = Uri.parse(path);

        ArrayList<Uri> uris = new ArrayList<Uri>();

        uris.add(screenshotUri);            

        intent.putExtra(Intent.EXTRA_EMAIL, new String[] { emailRemetente });
        intent.putExtra(Intent.EXTRA_SUBJECT, assuntoMontado);
        intent.putExtra(Intent.EXTRA_TEXT, corpoGeralEmail);
        intent.putExtra(Intent.EXTRA_STREAM, uris);
        intent.setType("text/rfc822");
        startActivityForResult(Intent.createChooser(intent, "Choose an Email client :"), 0);

        isEnviado = true;

    }else{

        AndroidUtil.createDialog(getActivity(), R.style.DialogStyle, "Alerta", "Email invalido").show();

    }   

文章来源: Unable to attach multiple files to an email in Android