I have an android layout which has a scrollView
with a number of elements with in it. At the bottom of the scrollView
I have a listView
which is then populated by an adapter.
The problem that I am experiencing, is that android is excluding the listView
from the scrollView
as the scrollView
already has a scroll-able function. I want the listView
to be as long as the content is and for the master scroll view to be scroll-able.
How can I achieve this behavior?
Here is my main layout:
<ScrollView
android:id="@+id/scrollView1"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="2"
android:fillViewport="true"
android:gravity="top" >
<LinearLayout
android:id="@+id/foodItemActvity_linearLayout_fragments"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >
</LinearLayout>
</ScrollView>
I then programmatically add my components to the linearlayour with the id: foodItemActvity_linearLayout_fragments
. Below is one of the views that is loaded into that linearlayout. This is the one giving me trouble with the scrolls.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >
<TextView
android:id="@+id/fragment_dds_review_textView_label"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Reviews:"
android:textAppearance="?android:attr/textAppearanceMedium" />
<ListView
android:id="@+id/fragment_dds_review_listView"
android:layout_width="match_parent"
android:layout_height="wrap_content">
</ListView>
</LinearLayout>
My adapter then fills up this list view.
Here is an image from the android hierarchy viewer when I click on the master scrollView:
As you can see, it is excluding the reviews listView.
I should be able to scroll the page down and see 8 reviews, but instead it only shows me those 3, and I can scroll on the tiny part where the reviews are. I want a global page scroll
Best Answer
The shortest & easiest solution for any ChildView to scroll inside a ScrollView. Anything like ListView, RecyclerView, etc. You do not have to do anything special in code.
Just replace ScrollView with androidx.core.widget.NestedScrollView in your current xml and then magic happens. The documentation states:
Below is a sample xml code :
Now you can get rid of all the ugly hacks we did to get around this nested scrolling.