Scroll vertically within a Xamarin Android ListView

I have been attempting to implement a vertical scroll for a list view, but I am facing an issue where all the list view items are displayed even if they exceed the phone's screen size.

This is the code snippet I have been using:

<LinearLayout  xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:minWidth="25px"
android:minHeight="25px">
<GridLayout
    android:minWidth="25px"
    android:minHeight="25px"
    android:layout_width="wrap_content"
    android:layout_height="fill_parent"
    android:rowCount="6"
    android:columnCount="1"
    android:orientation="vertical"
    android:id="@+id/myGridID">

    <!-- other controls like TextView, EditBox, other Grid layouts -->

    <ListView
         android:layout_row="4"
         android:layout_column="0"
         android:isScrollContainer="true"
         android:choiceMode="singleChoice"
         android:scrollbarSize="100px"
         android:layout_width="fill_parent"
         android:layout_height="fill_parent"
         android:id="@+id/myListId" />

    <!-- other controls like TextView, EditBox, other Grid layouts -->

</GridLayout>
</LinearLayout> 

My expectation was that when the height of the list items exceeded 100px (the value set in android:scrollbarSize), the vertical scroll would become active. However, this is not happening as intended.

I then tried the following code:

<LinearLayout  xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:minWidth="25px"
android:minHeight="25px">
<GridLayout
    android:minWidth="25px"
    android:minHeight="25px"
    android:layout_width="wrap_content"
    android:layout_height="fill_parent"
    android:rowCount="6"
    android:columnCount="1"
    android:orientation="vertical"
    android:id="@+id/myGridID">

    <!-- other controls like TextView, EditBox, other Grid layouts -->

    <ScrollView 
      a:visibility="visible"
      xmlns:a="http://schemas.android.com/tools"
      android:scrollbars="vertical"
      android:visibility="visible"
      android:layout_height="150px"
      android:layout_row="4"
      android:layout_column="0">
        <ListView
          android:isScrollContainer="true"
          android:choiceMode="singleChoice"
          android:scrollbarSize="100px"
          android:layout_width="fill_parent"
          android:layout_height="fill_parent"
          android:id="@+id/myListId" />
    </ScrollView>

    <!-- other controls like TextView, EditBox, other Grid layouts -->

</GridLayout>
</LinearLayout>

Wrapping the list view inside a ScrollView did create a vertical scroll, however, only one list item was shown at a time. I was hoping to see at least three items from the list view before needing to scroll through the rest.

Ideally, I would like to achieve the vertical scrolling feature using just the list view without the need for a ScrollView, since it complicates accessing a child from the list. Can someone please guide me on what might be going wrong with implementing the built-in vertical scroll for the Android Xamarin list view?

Answer №1

Utilizing a ScrollView as a parent for a ListView, which already has its own scroll, is not recommended.

To gain a clearer understanding of this concept, please refer to the following informative post: here

UPDATE

To address this issue, eliminate the additional scroll and adjust your ListView code to the following:

  <ListView
    android:layout_width="match_parent"
    android:divider="#D3D3D3" //divider color 
    android:dividerHeight="1dip" // Height
    android:layout_height="wrap_content"
    android:id="@+id/myListId" 
    />

If you require the following properties also, incorporate them individually and monitor for any potential conflicts:

      android:isScrollContainer="true"
      android:choiceMode="singleChoice"
      android:scrollbarSize="100px"

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