Android How to implement Bottom Sheet from Material Design docs

Question

How do you implement the bottom sheet specficiation? http://www.google.com/design/spec/components/bottom-sheets.html

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Answer 1

Following the blog post: http://android-developers.blogspot.com/2016/02/android-support-library-232.html

My xml ended up looking like this:

And in my onCreateView of my fragment:

    coordinatorLayout = (CoordinatorLayout)v.findViewById(R.id.coordinator_layout);
    View bottomSheet = coordinatorLayout.findViewById(R.id.bottom_sheet);
    BottomSheetBehavior behavior = BottomSheetBehavior.from(bottomSheet);
    behavior.setPeekHeight(100);
    behavior.setBottomSheetCallback(new BottomSheetBehavior.BottomSheetCallback() {
        @Override
        public void onStateChanged(@NonNull View bottomSheet, int newState) {
            // React to state change
        }

        @Override
        public void onSlide(@NonNull View bottomSheet, float slideOffset) {
            // React to dragging events
        }
    });

The default of setPeekHeight is 0, so if you don't set it, you won't be able to see your view.