Android - NestedScrollView which contains ExpandableListView doesn't scroll when expanded

You can use NonScrollExpandableListView you can achieve non-scroll property of any Lisview or GridView or ExpandableListView by overriding following method.

@Overridepublic void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {    int heightMeasureSpec_custom = MeasureSpec.makeMeasureSpec(            Integer.MAX_VALUE >> 2, MeasureSpec.AT_MOST);    super.onMeasure(widthMeasureSpec, heightMeasureSpec_custom);    ViewGroup.LayoutParams params = getLayoutParams();    params.height = getMeasuredHeight();} 

So for using NonScrollExpandableListView you need to make one custom class.

public class NonScrollExpandableListView extends ExpandableListView {    public NonScrollExpandableListView(Context context) {        super(context);    }    public NonScrollExpandableListView(Context context, AttributeSet attrs) {        super(context, attrs);    }    public NonScrollExpandableListView(Context context, AttributeSet attrs, int defStyle) {        super(context, attrs, defStyle);    }    @Override    public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {        int heightMeasureSpec_custom = MeasureSpec.makeMeasureSpec(                Integer.MAX_VALUE >> 2, MeasureSpec.AT_MOST);        super.onMeasure(widthMeasureSpec, heightMeasureSpec_custom);        ViewGroup.LayoutParams params = getLayoutParams();        params.height = getMeasuredHeight();    }}

And use it like.

<com.example.extraclasses.NonScrollExpandableListView     android:layout_width="match_parent"    android:layout_height="wrap_content" /> 

Happy coding.

Add android:nestedScrollingEnabled="true" to your ExpandalbleListView layout.

The answer from V-rund Puro-hit is what worked for me. But it took some modifications to work with Kotlin supporting API >19. So for the purpose of saving someone time, here it is:

Create a new class file NonScrollExpandableListView:

import android.content.Contextimport android.util.AttributeSetimport android.widget.ExpandableListAdapterimport android.widget.ExpandableListViewclass NonScrollExpandableListView : ExpandableListView {    constructor(context: Context) : super(context) {}    constructor(context: Context, attrs: AttributeSet) : super(context, attrs) {}    constructor(context: Context, attrs: AttributeSet, defStyle: Int) : super(context, attrs, defStyle) {}    override fun setAdapter(adapter: ExpandableListAdapter?) {        super.setAdapter(adapter)    }    override fun setOnChildClickListener(onChildClickListener: OnChildClickListener) {        super.setOnChildClickListener(onChildClickListener)    }    override fun expandGroup(groupPos: Int) : Boolean {        return super.expandGroup(groupPos)    }    override fun expandGroup(groupPos: Int, animate: Boolean) : Boolean {        return super.expandGroup(groupPos, animate)    }    override fun isGroupExpanded(groupPosition: Int): Boolean {        return super.isGroupExpanded(groupPosition)    }    public override fun onMeasure(widthMeasureSpec: Int, heightMeasureSpec: Int) {        val heightMeasureSpec_custom = MeasureSpec.makeMeasureSpec(                Integer.MAX_VALUE shr 2, MeasureSpec.AT_MOST)        super.onMeasure(widthMeasureSpec, heightMeasureSpec_custom)        val params = layoutParams        params.height = measuredHeight    }}

...and I use it like so:

    <ScrollView        android:layout_width="match_parent"        android:layout_height="match_parent">        <LinearLayout            android:layout_width="match_parent"            android:layout_height="wrap_content"            android:orientation="vertical"            >            <com.example.you.kotlinlistview.NonScrollExpandableListView                android:id="@+id/expandableCategories"                android:layout_width="match_parent"                android:layout_height="wrap_content"                />            <Button                android:id="@+id/add_new_feed"                android:drawableStart="@drawable/ic_add"                android:layout_width="match_parent"                android:layout_height="50dp"                android:text="Add new feed"                />            <Button                android:id="@+id/settings_button"                android:drawableStart="@drawable/ic_settings"                android:layout_width="match_parent"                android:layout_height="50dp"                android:text="Settings"                />            <Button                android:id="@+id/logout_button"                android:drawableStart="@drawable/ic_exit"                android:layout_width="match_parent"                android:layout_height="50dp"                android:text="Log Out"                />        </LinearLayout>    </ScrollView>

As a result, I can comfortably add buttons and other elements to NavigationView side drawer) and it all works nicely in one common ScrollView. Main usage here is when you need to combine multiple ListViews and ExpandableListViews inside the one common ScrollView which would take care of scrolling.