CODEWITHSUNDEEP
javaandroidlistviewscrollandroid-nestedscrollview
Somendra Meena
Somendra Meena

Reputation: 149

Can't scroll ListView in its parent NestedScrollView - Android

I am using ListView within NestedScrollView, but can't see more than 1 item in ListView. I can scroll upto the end of TextView (textContact) but can't scroll within the ListView (listContact).

Here's the code for .xml File :

<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout
    ... >
    <android.support.design.widget.CoordinatorLayout
        ... >    
        <LinearLayout
            ...
            android:orientation="vertical">

            <android.support.v7.widget.Toolbar
                ... />
            <android.support.v4.widget.NestedScrollView
                ... >
                <LinearLayout
                    ...
                    android:orientation="vertical">

                    <TextView
                        android:id="@+id/textContact"
                        ... />
                    <LinearLayout
                        ...
                        android:orientation="vertical">
                        <ListView
                            android:id="@+id/listContact"
                            ... />
                    </LinearLayout>
                </LinearLayout>

            </android.support.v4.widget.NestedScrollView>

        </LinearLayout>

    </android.support.design.widget.CoordinatorLayout>

    <android.support.design.widget.NavigationView
        ... />

</android.support.v4.widget.DrawerLayout>

Is there any design issue, any compatibility issue of the Widgets/Controls used here, or anything else ?

Upvotes: 0

Views: 5954

Answers (4)

Ashwin
Ashwin

Reputation: 118

Use ViewCompat.setNestedScrollingEnabled() on your listview and your problem should be solved.

Upvotes: 3

Prokash Sarkar
Prokash Sarkar

Reputation: 11873

You need to enable the following two properties inside the NestedScrollView,

<android.support.v4.widget.NestedScrollView xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/scrollView"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fillViewport="true"
    app:layout_behavior="@string/appbar_scrolling_view_behavior">

Then use a helper class to extend the ListView width & fix scrolling functionality,

import android.util.Log;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ListAdapter;
import android.widget.ListView;

public class Helper {
    public static void getListViewSize(ListView myListView) {
        ListAdapter myListAdapter = myListView.getAdapter();
        if (myListAdapter == null) {
            //do nothing return null
            return;
        }
        //set listAdapter in loop for getting final size
        int totalHeight = 0;
        for (int size = 0; size < myListAdapter.getCount(); size++) {
            View listItem = myListAdapter.getView(size, null, myListView);
            listItem.measure(0, 0);
            totalHeight += listItem.getMeasuredHeight();
        }
      //setting listview item in adapter
        ViewGroup.LayoutParams params = myListView.getLayoutParams();
        params.height = totalHeight + (myListView.getDividerHeight() * (myListAdapter.getCount() - 1));
        myListView.setLayoutParams(params);
        // print height of adapter on log
        Log.i("height of listItem:", String.valueOf(totalHeight));
    }
}

To use the helper class while setting the ListView adapter,

listView.setAdapter(new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1, listview_array));
              Helper.getListViewSize(listView);

PS: Make sure you have added support design lib for your project.

compile 'com.android.support:design:23.4.0'

Upvotes: 5

Srishti Roy
Srishti Roy

Reputation: 576

  <android.support.v7.widget.RecyclerView
        android:id="@+id/recycler"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:layout_behavior="@string/appbar_scrolling_view_behavior"
        android:clipToPadding="false" >
       </android.support.v7.widget.RecyclerView>

Are you missing app:layout_behavior

Upvotes: 0

Piotr Wittchen
Piotr Wittchen

Reputation: 3922

I think, you have bad layout design and you should redesign it. In general, you shouldn't have a scrollable view like ListView inside another scrollable view like NestedScrollView or ScrollView. Do you really need that? Try to change it, flatten your views structure and this problem should disappear.

Upvotes: 0

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