When scrolling vertically in a Flutter app, the TabBar Fixed Container Shadow descends beneath the ListView

I have successfully added a shadow to my Container using the Material Widget and BoxShadow. However, I am facing an issue with the shadow position when I expand a ListView at the bottom of the fixed container. As I scroll up vertically, the container shadow goes down behind the ListView items, which is not the desired behavior. I want the shadow to appear on top of the ListView items as I scroll vertically. Can someone please assist me with this?

Below is the snippet of my code:

Material(
              elevation: 2,
               child: Container(
                decoration: BoxDecoration(
                  color: Colors.white,
                  boxShadow: [
                    BoxShadow(
                      color: Colors.red,
                      blurRadius: 2,
                      spreadRadius: 2,
                      offset: Offset(0,2),
                    ),
                  ],
                ),
                height: SizeConfig.isLargeScreen ? 60.h : 105.h,
                width: double.infinity,
                child: !SizeConfig.isLargeScreen),),

Note: I have also given elevation 3 to my ListView card. How can I make sure that the container shadow stays above the ListView while scrolling vertically? Any help would be greatly appreciated.

cssflutterlistviewflutter-layoutelevation

Answer №1

  1. To resolve this issue, consider utilizing the padding widget. Learn more about the padding widget at ( https://youtu.be/oD5RtLhhubg ).

  2. Another approach to addressing the problem is by incorporating a listView with separators and dividers.

  3. If the problem persists, try adjusting the margin of the container.

  4. Additionally, for container shadow-related issues, experiment with the offset value in the boxshadow property.

  5. We would love to hear from you! Share which method helped you solve the problem or if you found success through a different strategy.

Answer №2

If you're facing this problem, there are two effective solutions you can try out. The first method involves wrapping your Material widget with a Padding widget like shown below:

Padding(
    Material(
          elevation: 2,
           child: Container(
            decoration: BoxDecoration(
              color: Colors.white,
              boxShadow: [
                BoxShadow(
                  color: Colors.red,
                  blurRadius: 2,
                  spreadRadius: 2,
                  offset: Offset(0,2),
                ),
              ],
            ),
            height: SizeConfig.isLargeScreen ? 60.h : 105.h,
            width: double.infinity,
            child: !SizeConfig.isLargeScreen),),),

Alternatively, you can simply insert SizedBox(height: 20,), right after the Material widget. This will add some space between the Material widget and the ListView, effectively resolving the issue.

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