Auto change the default app to launch

[Archer]

I've recently got a bluetooth headset, and the google now launcher is (I think) the easiest way to get everything done via voice commands (no options for any fiddling on a bike).
But, I really like my current launcher. So, is there any way to automatically change the default app to launch when a condition is met, eg bluetooth connected? Llama doesnt seem to have it (although I may have missed it). So any options? Or any way to reliably launch google now when I push the button for voice command (I tried this funky program that launches google now when it detects you wanting to provide voice input but it was 50/50 at best)

 

[Archer]

Guess I'm up a creek without a paddle then

 

[AstroTurf]

possibly an nfc tag may help?
No idea really...

 

[Park@82]

What is your current launcher? AFAIK Nova supports the Ok Google commands. I don't use it myself though.

 

[OGroteKoning]

https://play.google.com/store/apps/details?id=papers.ch.autobluetooth&hl=en

EDIT: Sorry, I missed the core of your question initially and this would not seem to sort your problem out.

 

[Archer]

What is your current launcher? AFAIK Nova supports the Ok Google commands. I don't use it myself though.

Using Apex, I can give Nova a go
edit: though I see Apex added the functionality a few months ago too, will need to dig a little

Lol, its enabled now Will test it out on the way home. Not sure if it'll work form the lockscreen but I think when I push the button on the headset it goes to the homescreen, will see