“Null check operator used on a null value” at ListView Builder
I have this seperate page that I navigate to it and I am testing my Question widget with a ListView.builder().
The error occurs when I navigate to the page, at ListView.builder(). I am new to ListView/GridView builders so I followed some tutorials about it. I can’t figure out the issue here.
How do I make a scrollable page scroll when its child listbuilder widget reaches the end of its list in dart?
I am only able to provide snippets of my code as this is from a large project.
Why ListView.builder hangs the app when an empty Container widget is returned from itemBuilder callback?
I just started learning Flutter and during the development, the app got stuck at Performing hot-reload.
Listview index is always reset
I have a widget that returns a ListView. When an item in the ListView is selected, I show the CircularProgressIndicator on the screen while downloading the data for this item, and after the download is complete, I show the ListView again. However, after the download is complete and the CircularProgressIndicator is closed, the index of the ListView is always reset (that is, the index becomes 0). In other words, without using state management, I can’t keep track of the user’s position on the listview before the download, how can I do this?
The issue of unwanted empty space on scroll in Flutter
currently, the ListView.builder widget is scrollable, and it creates an empty space at the top similar to the green area in the layout. Is it possible to standardize it so that there won’t be any gap at the top like the red area, even when scrolled? What I aim for is that when scrolled, the content should move downwards without leaving any empty space at the top. I’ve been trying to achieve this but haven’t succeeded.
Flutter Listview empty area on scroll start
currently, the ListView.builder widget is scrollable, and it creates an empty space at the top similar to the green area in the layout. Is it possible to standardize it so that there won’t be any gap at the top like the red area, even when scrolled? What I aim for is that when scrolled, the content should move downwards without leaving any empty space at the top. I’ve been trying to achieve this but haven’t succeeded.
Why does my flutter ListView.Builder gives renderflex overflowed error?
I am trying to implement a listview builder in my flutter app to generate a scrollable list of reviews, but for some reason its giving me a renderflex overflow error. This doesn’t make any sense because a list view is designed to overflow the screen thats what the whole point of it is.