BottomSheetDialogFragment 如何设置高度和禁止滑动

主要是获取dialog 的BottomSheetBehavior 然后设置 setPeekHeight 和 BottomSheetCallback.

private BottomSheetBehavior.BottomSheetCallback mBottomSheetBehaviorCallback = new BottomSheetBehavior.BottomSheetCallback() {
        @Override
        public void onStateChanged(@NonNull View bottomSheet, int newState) {
            //禁止拖拽，
            if (newState == BottomSheetBehavior.STATE_DRAGGING) {
                //设置为收缩状态
                mBottomSheetBehavior.setState(BottomSheetBehavior.STATE_COLLAPSED);
            }
        }
        @Override
        public void onSlide(@NonNull View bottomSheet, float slideOffset) {
        }
    };

    @Override
    public void onStart() {
        super.onStart();
        Dialog dialog = getDialog();

        if (dialog != null) {
            View bottomSheet = dialog.findViewById(R.id.design_bottom_sheet);
            bottomSheet.getLayoutParams().height = ViewGroup.LayoutParams.MATCH_PARENT;
        }
        final View view = getView();
        view.post(new Runnable() {
            @Override
            public void run() {
                View parent = (View) view.getParent();
                CoordinatorLayout.LayoutParams params = (CoordinatorLayout.LayoutParams) (parent).getLayoutParams();
                CoordinatorLayout.Behavior behavior = params.getBehavior();
                mBottomSheetBehavior = (BottomSheetBehavior) behavior;
                mBottomSheetBehavior.setBottomSheetCallback(mBottomSheetBehaviorCallback);
                Display display = getActivity().getWindowManager().getDefaultDisplay();
                //设置高度
                int height = display.getHeight() *2/3;
                mBottomSheetBehavior.setPeekHeight(height);
                parent.setBackgroundColor(Color.TRANSPARENT);
            }
        });
    }

 @Nullable
    @Override
    public View onCreateView(final LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        View view =inflater.inflate(R.layout.fragment_bottom_sheet,container,false);
       return view;
    }

 https://blog.csdn.net/a1018875550/article/details/80954244