I&#x27;d like to replace the native call&#x2F;text functionality in Android. I&#x27;d like to build an Android app that will handle incoming&#x2F;outgoing calls&#x2F;texts using Twilio. A wifi-only phone of sorts. I&#x27;ve built Android apps in the past so I&#x27;m familiar with the process. My knowledge of modifying code on a rooted android device is lacking. What I need help finding is how to override&#x2F;hack the lock screen to show incoming calls. Incoming text messages can be handled with normal push notifications. Lock screen widgets were removed in Lollipop so I can&#x27;t go that route. I&#x27;m looking for any pointers, helpful info, code examples, or comparable apps. I&#x27;d like to make sure this is feasible before committing any amount of significant time to it.
Ask HN: Replacing native call/text Android functionality