scrollview_observer 1.18.1

A widget for observing data related to the child widgets being displayed in a ScrollView.

Flutter ScrollView Observer

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This is a library of widget that can be used to listen for child widgets those are being displayed in the scroll view.

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📖 Article

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🔨 Feature

You do not need to change the view you are currently using, just wrap a ViewObserver around the view to achieve the following features.

• ✅ Observing child widgets those are being displayed in ScrollView
• ✅ Support for scrolling to a specific item in ScrollView
• ✅ Quickly implement the chat session page effect
• ✅ Support for keeping IM message position when inserting or updating messages, avoiding jitter.

🎀 Support

• ✅ ListView
• ✅ SliverList
• ✅ GridView
• ✅ SliverGrid
• ✅ Mixing usage of SliverPersistentHeader, SliverList and SliverGrid
• ✅ ScrollView built by third-party package.

🏞 Related Example

📦 Installing

Add scrollview_observer to your pubspec.yaml file:

dependencies:
  scrollview_observer: latest_version

Import scrollview_observer in files that it will be used:

import 'package:scrollview_observer/scrollview_observer.dart';

📚 Wiki

• Wiki Home
• 1、Observing child widgets those are being displayed in the scroll view
• 2、Scrolling to the specified index location
• 3、Chat Observer

🖨 About Me

• GitHub: https://github.com/LinXunFeng
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