How to Keep ListView Selected Item Highlighted in Android?

Keeping ListView Selected Item Highlighted in Android

In Android development, it is often desirable to highlight the selected item in a ListView while displaying details of the selected item in a separate ListView. This article addresses a common issue related to this scenario.

Problem:

When a user selects an item in a ListView (lv_cli), the details of the selected client should be displayed in a separate ListView (lv_cli_det). However, upon doing so, the user's selected item in lv_cli loses its highlight.

Solution:

The solution lies in utilizing the android:choiceMode="singleChoice" attribute in the XML layout. This attribute specifies the selection behavior for the ListView, allowing only one item to be selected at a time. The background of the selected item will automatically be highlighted using the android:listSelector="#666666" attribute.

Code:

<ListView
    android:id="@+id/cli_lista"
    android:layout_width="512dp"
    android:layout_height="wrap_content"
    android:fadeScrollbars="false"
    android:choiceMode="singleChoice"
    android:listSelector="@color/my_selector" >
</ListView>

Alternatively, you can set these attributes programmatically using the setSelector() and setChoiceMode() methods of the ListView class.

Using this approach, the selected item in lv_cli will remain highlighted while the details of the selected client are displayed in lv_cli_det.

Important Note:

It is important to avoid managing view backgrounds directly in response to onItemClick events. Since views are temporary objects, this approach can lead to unpredictable behavior when items are scrolled out of view and reused.

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