I can't fix this error RenderBox was not laid out: RenderPointerListener#2b92a relayoutBoundary=up9 NEEDS-PAINT NEEDS-COMPOSITING-BITS-UPDATE 'package:flutter/src/rendering/box.dart': Failed asser...

I want refresh my page without having a scrollable content, i.e. without having a ListView et al. When I want use RefreshIndicator, the documentation says it needs a scrollable widget like ListVie...

I'm trying to make a list on my flutter app. But, Every time I scroll all the way to the top there is this animation showing up like this: https://i.stack.imgur.com/Z7mHh.jpg, https://i.stack.im...

I want to achieve something like below (animation style doesn't matter, I'm looking for the way to do this) However, all resources and question only explain how to create item addition or removal ...

I am using Animated List in flutter to load a list class, while adding or removing the items, the animation works but when the list is initially loaded, the animation does not work. Is there a way ...

I want to build a bottom sheet widget which is able to drag up to full screen. Can anyone tell me how to do this? Google map has a widget is able to do this. Here is the screenshot (check attach...

I want to create a list of cards scrolling horizontally with snap to fit effect when swiped either from left or right. Each card has some spacing between them and fit to screen similar to below im...

I am new in flutter. I am try to pause animation of GIF image on click and resume animation on second click but i have not idea about how to implement that in flutter. I am using asset image for th...

I'm trying to achieve the $subject. When I do the swipe to the left side(movement is right -> left) animation happens properly and widget starts from the right side and stay. But when I do the s...

I've created a .riv file with 3 state animations: start, processing, end, which are in "State machine". Rive team recently announced a new feature with dinamically changing animations, it...

I am trying to create a fade transition for pushing routes, for that created a custom route like class CustomPageRoute<T> extends MaterialPageRoute<T> { CustomPageRoute({WidgetBuilder...

I've been researching some list sorting libraries like flutter_list_drag_and_drop, reorderable_list, flutter_reorderable_list, dragable_flutter_list, and others, but all work with only one list. W...

I am getting a "nullable expression" error. The problem is occurring in the following lines: left: isSideBarOpenedAsync.data ? 0 : 0, right: isSideBarOpenedAsync.data ? 0 : screenWidth - ...

I was recently trying to add in firebase fcm and it didn't work just caused several errors, so I rolled everything back to the original RUNNING code but upgraded flutter in the process...Since v1.3...

I want to create a resizable container which can be resized by user using horizontal drag. This Gif can explain the requirement: I tried GestureDetector.horizontal drag but the results are way off...

I am building a radio app. Like in Spotify, there is a bar with the current title and artist, the text should be in one line and in a given width. How can I let the text move from right to left and...

I use Provider to manage state in my Flutter demo. I want to animate my widget but it seems that AnimateController needs a sync parameter that comes from the state of a stateful widget. As far as...

Is there a way in Flutter to animate the transition when the data of a Text element changes? I have a new Text(_value) element where _value changes based on a Slider position. Is there any way to ...

I use flutter version 2.2.1 File : Main.dart This is message error How to solve this error?

Considering that Flutter uses its own graphics engine, is there a way to render Flutter animations directly to video, or create screenshots in a frame by frame fashion? One use case would be that...

There is no Animated grid for Flutter So, what i am trying to achieve is scroll the gridview like orbit in flutter. Like below. Tried using TweenAnimationBuilder and flutter_staggered_animations: ^...

When I rotate the cube, 2 Sides of cubes are opaque while others are transparent. Output: Code: import 'dart:math'; import 'package:flutter/material.dart'; void main() => runApp(const MyApp());...

I creating game with single and two players. for selection i want slide look so i have tried with switch method but its look very small. how to increase height and width of switch? is there any way...

Example Using the CupertinoPicker, I want it to animate into view below a textinput, using the AnimatedContainer, but when it becomes visible, I get an overflow warning. From what I've seen you ca...

I want to show pulse animated marker in google_maps_flutter. Is there any way to do like this(below) marker in Flutter? I am able to do like this(below): For easy to understand what I am a...