I've attempted the solution outlined in building-combined-armv7-x86-apk-after-crosswalk-integration-in-an-ionic-project.
The great thing is that it creates a single apk file. But when I run my cordova application, I get the following alert:
Mismatch of CPU Architecture
The Crosswalk Project Service must be updated to match the CPU architecture of the device. Please install it from the app store, then restart app.
Looks like Crosswalk is not embedded in the combined apk.
Does anyone know how to embed Crosswalk in a combined apk?