When I use the builtin apps for walking on my vivoactive hr, I can activate the tracking and then use the left button to go back to the widgets and cycle to clockface and hr monitor and so on. When I press the right button I get back to the walking app.
Can I get the same behavior with my own app? In my test app I can disable the left back button depending on the state of my app, but if it is active it closes my app instead of keeping it active in the background.