inkwell | It 's a New Kind of Wrapper for Exposing LLVM | Compiler library

I made a website with PageController to control the scroll of some screens. And I made a menu section with screen names, and when any of them are pressed, the user will navigate to the respective screen.

The app is working fine. But I refactored the menu button so I can control it's style, and to add animation in the future.

But when I refactored the button, I can't pass the PageController index, or the nextPage function.

That's why I thought of using the provider package. However, I didn't the package before, and my setup seems complex. For I should pass the PageController state to the button, and the button should send the nextPage function with a new number.

How can I achieve this?

Here's my code:

The button:

Problem is : When i click one of my CharBarButtons widget, all the other CharBarButtons are also rebuilt is there a way to avoid that and do the rebuilds individually while using StateNotifier holding List(integers are positions of buttons)

CharBarButtons : (Here i am changing the decoration of CharBarButtons according to the isTapped's boolean value)

I have a Flutter project in which I am:

• Downloading the zip file (full of html files)
• Extracting the html files to a new directory (ebooks/02)
• Saving the local file urls in a List
• Displaying the urls in Webview & iterate through List for back & forth.

However, in the web view all I get is "Unable to load asset..."

Though any standard http url works fine in webview.

I tried from these two answers but no result: Answer1 & Answer2

The exception I get is :

E/flutter (10963): [ERROR:flutter/lib/ui/ui_dart_state.cc(186)] Unhandled Exception: Unable to load asset: /data/user/0/com.pts.school_ebook_reader_app_prag/app_flutter/ebooks/04/00.html

I need to understand how to make the local html at the given path display in webview.

Any help would be appreciated.

Edit:

The webview code (currently trying to display only 1st url in list):

I don't understand why in Positioned widget, I get an error that child parameter isn't defined as well as in AnimatedContainer the 'duration' parameter isn't defined.

I checked the official documentation first, but don't know why it's not working.

https://api.flutter.dev/flutter/widgets/Positioned-class.html

https://api.flutter.dev/flutter/widgets/AnimatedContainer-class.html

I'm trying to create a custom checkbox widget and I'm having trouble getting the bool value of that checkbox from another class: So am having a form in stateful widget Signup, within this form I'm calling my CustomCheckBox widget (also a stateful widget).

The issue: When I click on the checkbox its value change to true in the CustomCheckBox widget however after submitting the form in Signup widget the value always false (seams to be no back communication between the the two widgets)

My CustomCheckBox code:

So i'm trying to remove space from my column, Below is the parent part,

I have a bottom Tab bar in my app for navigation and appbar, from the menu page after adding products in Cart screen there is Continue button when i pressed it take me to Login screen, there a normal login with and otp verification, now when i try to navigate back to menu screen after successfull otp verification, i see Tab bar disappeared and the App bar.

How i can fix this problem

Cart Screen

I want to put a widget onto other's view.

Here is what I did

In normal version without countdown timer, there is no whitespace inside the screen. It is %50 %50 divided by colours(red and blue).

What I want to do is adding that countdown timer without creating whitespace. Directly adding it onto those colours on the center.

I saw that with Stack it is possible to do. I tried it but couldn't remove the white area.

Here is my code:

I am trying to make a list of cards that has an image as a background and at the bottom 3 icons with their respective text. The first image is what this piece of code does, the second would be the optimal result, but I don't know how to do it.