example
I want to create some applications with widget ListView. When you scrolling up, image at first index will be expanded, and if you scroll again, next image will be expanded again, and if you scrolling down, image will be collapsed again.
Is it possible to create this with flutter?
Related
I need a horizontal list view in the flutter , that according to the image below, the first item is empty and the image is visible in the background, when the second item starts scrolling, the background image disappears and when the item returns to its place , The image also returns to the original state.
You will need some code here.
The vertical listview you can get with the SingleChildScroolView changing the axis to vertical and placing a Column inside.
To the empty space on last item, place a Sizedbox as last widget inside Column.
Place a ScrollController on the SingleChildScroolView with a listener, and when the controller reach the maximum just fade in the background image.
Its not hard, just need some code.
Finally, I published Package (flutter_faded_list) for designing this UI on the pub.dev website.
Does anybody have a clue how to achieve expand/collapse animation for a given Container widget?
I tried to use ExpandablePanel but it is not what I really want, because I want to render a Column within a Container, and if the Container is collapsed I want to show only 150px from it, otherwise it should have the height of the content.
Clicking on the arrow the Container should toggle it's state.
Below are some images which represents the goal:
Collapsed
Expanded
The overflow error is thrown because when the column is collapsed there is no room to contain all the children inside the column.
What do we do when we have a column with children's height larger than the screen height? We use scrolling!
So you can wrap your column with SingleChildScrollView widget to make the column scrollable, so when it collapses it doesn't complain about the children's height, instead, the scrolling functionality handles them because you can scroll in a column even if it has very small width.
I am using a CustomScrollView and Slivers inside it and redendering the list using SliverChildBuilderDelegate. This works fine, but my requirement is to have a Fixed Container of height = height of screen/2 and inside that I want to render a list and and it can scroll as well, I am using CupertinoSliverNavigationBar [this cannot be replaced]. I am able to draw a Container and inside that I am able to show a list using Listview.builder, but the problem is I am unable to scroll the list, whenever I scroll it, it goes to top again, I want something Like, my CustomScrollView should be kept as it is, just I want to create a Scrollable Container of fixed height and the list inside that should scroll properly and CustomScrollView can also scroll, I have tried many widgets like Wrap, Rows, Columns, SingleChildScrollView, also tried NeverScrollPhysics() Behaviour for CustomScrollView but nothing is working out. Please Help!
I want to give a margin around the whole screen in Flutter. So I put my content inside a Column and put the Column inside a Container. So I gave a padding to the whole screen. But when a TextField is selected and the keyboard appears the bottom overflow. I can't give resizeToAvoidBottomPadding: false, because then the keyboard covers the TextField.
I can't use SingleChildScrollView or a ListView because then the placing of the children won't keep space between.
It seems the only option is to remove the Container and set a padding to each child of the Column.
Is there a better option for this ?
My question is similar to this How to make my page scrollable when i show overlay element, that have too many items in flutter? but it has no answers so I'll try to ask as well:
I have an Overlay showing a list of questions using ListView. The list of questions is long and I need to enable scrolling inside the Overlay.
Now it's static and part of it disappears at the bottom of the mobile device.
Why is not just scrollable (since the list inside the Overlay is inside a ListView) and is there a way to make it scrollable?
Thanks in advance for any help!
UPDATE (SOLVED) :
The problem was that the ListView widget is inside a Positioned widget and the top, left, bottom and width values (in my case) need to be set in order for the content to be scrollable.
The problem was that the ListView widget is inside a Positioned widget and the top, left,bottom and width values (in my case) need to be set in order for the content to be scrollable.