Scrolling issue with BottomSheet - Android

Question

I need the BottomSheet to stop at two positions. I have the following code for BottomSheet.

<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:id="@+id/main_content" android:layout_width="match_parent" android:layout_height="match_parent" android:fitsSystemWindows="true"> <RelativeLayout android:layout_width="match_parent" android:layout_height="match_parent"> .... </RelativeLayout> <FrameLayout android:id="@+id/bottom_sheet" android:layout_width="match_parent" android:layout_height="wrap_content" app:layout_behavior="android.support.design.widget.BottomSheetBehavior"> <ScrollView android:layout_width="match_parent" android:layout_height="match_parent"> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:background="@color/white" android:minHeight="1000dp" android:orientation="vertical"> .... </LinearLayout> </ScrollView> </FrameLayout> </android.support.design.widget.CoordinatorLayout>

and

View bottomSheet = coordinatorLayout.findViewById(R.id.bottom_sheet); final BottomSheetBehavior behavior = BottomSheetBehavior.from(bottomSheet); behavior.setBottomSheetCallback(new BottomSheetBehavior.BottomSheetCallback() { @Override public void onStateChanged(@NonNull View bottomSheet, int newState) { // React to state change Log.e("onStateChanged", "onStateChanged:" + newState); if (newState == BottomSheetBehavior.STATE_EXPANDED) { behavior.setPeekHeight(600); showAgain.setVisibility(View.GONE); mMap.getUiSettings().setScrollGesturesEnabled(false); } else if (newState == BottomSheetBehavior.STATE_COLLAPSED) { if (behavior.getPeekHeight() == 600) { behavior.setState(BottomSheetBehavior.STATE_COLLAPSED); behavior.setPeekHeight(80); mMap.getUiSettings().setScrollGesturesEnabled(false); } else if (behavior.getPeekHeight() == 80) { showAgain.setVisibility(View.VISIBLE); mMap.getUiSettings().setScrollGesturesEnabled(true); } } } @Override public void onSlide(@NonNull View bottomSheet, float slideOffset) { // React to dragging events Log.e("onSlide", "onSlide " + slideOffset); } }); behavior.setPeekHeight(600);

This code works fine except one thing. The very first time I have to scroll up the BottomSheet and then I can down scroll it. I cannot directly down scroll the sheet.

Any help will be appreciated.

Shubham Suryavanshi · Accepted Answer · 2021-03-01 13:12:01Z

33

I don't know if this will be a solution to your problem, but I fixed quite a bit of scroll issues in a BottomSheet by replacing the ScrollView in the BottomSheet with a NestedScrollView.

edited Mar 1, 2021 at 13:12

Shubham Suryavanshi

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answered Aug 2, 2016 at 14:38

YP_be

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1 Comment

sud007 Over a year ago

Absolutely right! NestedScrollView without any specific flags, resolves such issues even with BottomSheetDialogFragment. I experienced the same!

Indigo0087 · Accepted Answer · 2018-09-23 08:30:31Z

7

Hope here you will find a solution

https://www.androidhive.info/2017/12/android-working-with-bottom-sheet/

and change ScrollView with NestedScrollView

p.s. Actually there's too mush code there

answered Sep 23, 2018 at 8:30

Indigo0087

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1 Comment

Dima Kozhevin Over a year ago

A link to a solution is welcome, but please ensure your answer is useful without it: add context around the link so your fellow users will have some idea what it is and why it’s there, then quote the most relevant part of the page you're linking to in case the target page is unavailable. Answers that are little more than a link may be deleted.

Manzur Alahi · Accepted Answer · 2019-10-31 10:52:49Z

This is what worked for me,

Set a Nested Scrollview as the parent
Make recycler view height wrap_content

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