CollapsingToolbarLayout expand only when at the top

Question

I have some problems with AppBarLayout and CollapsingToolbarLayout. This is what currently happens:

https://www.youtube.com/watch?v=z4yD8rmjSjU

The downwards scr

Answer 1

I ended up moving the orange bar out of the CollapsingToolbarLayout and setting an OnOffsetChangedListener that changes the translationY of the top bar on the AppBarLayout.

Setting the OnOffsetChangedListener:

app_bar.addOnOffsetChangedListener(AppBarLayout.OnOffsetChangedListener { appbar, offset ->

    topbar.translationY = Math.min(image.height.toFloat(),  - offset.toFloat())

})

Layout: