安卓发送邮件用PDF文件 [英] Android send mail with PDF file

问题描述

我要发送位于设备上的文件夹中的PDF文件。该文件被选择和发送的，但它是空的。我哪里错了？

 字符串inviare = n_fr.getText（）的toString（）。
开放的我们的uri = Uri.fromFile（新文件（Environment.getExternalStorageDirectory（）的getString（R.string.app_name）+/+文件夹_+安诺+/+文件_+ inviare +PDF））;

            意图sendEmail =新的意图（Intent.ACTION_SEND）;
                   sendEmail.setType（应用程序/ PDF格式）;
                   sendEmail.putExtra（Intent.EXTRA_SUBJECT，文件名）;
                   sendEmail.putExtra（Intent.EXTRA_STREAM，URI）;
            startActivity（Intent.createChooser（sendEmail，Invia PDF））;
 

解决方案

• 请确保您已启用的 android.permission.WRITE_EXTERNAL_STORAG​​E 或 android.permission.READ_EXTERNAL_STORAG​​E 在你的清单许可

• 检查 URI 解析为一个实际的文件，并尝试登录文件内容（ Log.d ）在code表示块，以确保文件的内容实际上是可读的。

I'm trying to send a PDF file that is located in a folder on the device. The file is selected and sent, but it is empty. Where I'm wrong?

String inviare = n_fr.getText().toString();
Uri uri = Uri.fromFile(new File(Environment.getExternalStorageDirectory(), getString(R.string.app_name)+"/"+"Folder_"+anno+"/"+"file_"+inviare+".pdf")); 

            Intent sendEmail= new Intent(Intent.ACTION_SEND);
                   sendEmail.setType("application/pdf");
                   sendEmail.putExtra(Intent.EXTRA_SUBJECT, filename);                         
                   sendEmail.putExtra(Intent.EXTRA_STREAM, uri);
            startActivity(Intent.createChooser(sendEmail, "Invia PDF"));

解决方案

• Make sure you've enabled the android.permission.WRITE_EXTERNAL_STORAGE or android.permission.READ_EXTERNAL_STORAGE permission in your manifest

• Check that the uri resolves to an actual file, and try logging the file content (Log.d) in that block of code, to ensure the file contents are actually readable.

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