Dynamically change height of BottomSheetBehavior

Question

I\'m using the BottomSheetBehavior from Google recently released AppCompat v23.2. The height of my bottom sheet depends on the content displayed inside of the b

Answer 1

I've followed @HaraldUnander advice, and it gave me an idea which has actually worked. If you run a thread (couldn't make it work with the post method as him) after the BottomSheetBehavior.state is set up programmatically to STATE_COLLAPSED, then you can already obtain the height of your views and set the peekHeight depending on it's content.

So first you set the BottomSheetBehavior:

BottomSheetBehavior.from(routeCaptionBottomSheet).state = BottomSheetBehavior.STATE_COLLAPSED

And then you set the peekHeight dynamically:

thread {
    activity?.runOnUiThread {
        val dynamicHeight = yourContainerView.height
        BottomSheetBehavior.from(bottomSheetView).peekHeight = dynamicHeight
    }
}

If using Java (I'm using Kotlin with Anko for threads), this could do:

new Thread(new Runnable() {
    public void run() {
        int dynamicHeight = yourContainerView.getHeight();
        BottomSheetBehavior.from(bottomSheetView).setPeekHeight(dynamicHeight);
    }
}).start();