Gmail error "Unable to attach file"

Question

I am trying to email PDF file using Gmail. However, Gmail app is showing toast:

Unable to attach file

PDF file is not-corrupt and is generated successfully in application's cache directory.

Code: (Please comment below if you need code in Java.):

    val photoURI: Uri = FileProvider.getUriForFile(this, "com.packagename.provider",
            File(this.cacheDir.path + "/Report.pdf"))

    val emailIntent = Intent(Intent.ACTION_SENDTO)
    emailIntent.data = Uri.parse("mailto:")
    emailIntent.putExtra(Intent.EXTRA_STREAM, photoURI)
    emailIntent.putExtra(Intent.EXTRA_EMAIL, arrayOf("[email protected]"))
    emailIntent.putExtra(Intent.EXTRA_SUBJECT, "subject")
    emailIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION)
    emailIntent.addFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION)
    startActivity(emailIntent)

Please help

Rudich

what is the size of the PDF file? – Combo

less than 1 MB. – Rudich

Gmail has read storage permission? – Combo

You also need to give the user permission via a manifest file <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/> – Spagyric

Yes it has storage permission. – Rudich

But I have stored file in Cache and letting client accessing it through FileProvider. Why is permission needed? – Rudich

@MalwinderSingh Hi! I have the same problem. Could you tell me please how you solved this problem? – Telescopic

@Telescopic You can use Gmail APIs for Android. – Rudich

Answer 1

As per Android Documentation, you need to use the ACTION.SEND intent action in the Intent constructor for attachments. Common Intents - Android Documentation

ACTION_SENDTO (for no attachment) or ACTION_SEND (for one attachment) or ACTION_SEND_MULTIPLE (for multiple attachments)

Prase