Right then, so here goes
My app shares a file via email with the file extension (.babc), and associates a mime type of "application/babc".
I have added the following text to the manifest of my project...
AddActivityText(Main,
<intent-filter>
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.DEFAULT" />
<data android:mimeType="application/babc" />
</intent-filter>)
However, when I try to open a .babc file from an email attachment in Gmail app I get the message...
"No app can open this attachment for viewing"
... if I download the attachment and attempt to launch directly from the device I get the message...
"No apps can perform this action".
Can anyone think of what I'm doing wrong please?