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Merge pull request #1 from SyncfusionExamples/941156
How to inherit scrolling from NestedScrollView to Flutter DataTable
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.gitignore

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# Miscellaneous
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*.class
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*.log
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*.pyc
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*.swp
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.DS_Store
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.atom/
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.build/
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.buildlog/
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.history
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.svn/
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.swiftpm/
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migrate_working_dir/
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# IntelliJ related
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*.iml
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*.ipr
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*.iws
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.idea/
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# The .vscode folder contains launch configuration and tasks you configure in
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# VS Code which you may wish to be included in version control, so this line
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# is commented out by default.
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#.vscode/
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# Flutter/Dart/Pub related
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**/doc/api/
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**/ios/Flutter/.last_build_id
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.dart_tool/
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.flutter-plugins
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.flutter-plugins-dependencies
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.pub-cache/
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.pub/
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/build/
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# Symbolication related
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app.*.symbols
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# Obfuscation related
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app.*.map.json
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# Android Studio will place build artifacts here
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/android/app/debug
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/android/app/profile
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/android/app/release

README.md

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# How-to-inherit-scrolling-from-NestedScrollView-to-Flutter-DataTable
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This demo shows how to inherit scrolling from NestedScrollView to Flutter DataTable?.
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# How to inherit scrolling from NestedScrollView to Flutter DataTable (SfDataGrid)?
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In this article, we will show you how to inherit scrolling from NestedScrollView to [Flutter DataTable](https://www.syncfusion.com/flutter-widgets/flutter-datagrid).
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Initialize the [SfDataGrid](https://pub.dev/documentation/syncfusion_flutter_datagrid/latest/datagrid/SfDataGrid-class.html) with the necessary properties. The [NestedScrollView](https://api.flutter.dev/flutter/widgets/NestedScrollView-class.html) enables a SliverAppBar (or other sliver widgets) to remain fixed while allowing the inner content, such as SfDataGrid, to scroll independently. To avoid conflicts with the scrolling mechanism, [NeverScrollableScrollPhysics](https://api.flutter.dev/flutter/widgets/NeverScrollableScrollPhysics-class.html) is applied to disable DataGrid’s internal scrolling, ensuring that the parent widget controls it. [SliverOverlapAbsorber](https://api.flutter.dev/flutter/widgets/SliverOverlapAbsorber-class.html) and [SliverOverlapInjector](https://api.flutter.dev/flutter/widgets/SliverOverlapInjector-class.html) maintain layout consistency, while [SliverToBoxAdapter](https://api.flutter.dev/flutter/widgets/SliverToBoxAdapter-class.html) wraps the SfDataGrid for seamless integration within the sliver structure. Additionally, setting [shrinkWrapRows](https://pub.dev/documentation/syncfusion_flutter_datagrid/latest/datagrid/SfDataGrid/shrinkWrapRows.html) to true ensures the DataGrid adjusts its height dynamically, allowing the parent widget to manage scrolling effectively.
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```dart
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@override
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Widget build(BuildContext context) {
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final List<String> tabs = ['Tab 1', 'Tab 2', 'Tab 3'];
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return DefaultTabController(
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length: tabs.length,
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child: Scaffold(
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body: NestedScrollView(
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headerSliverBuilder: (BuildContext context, bool innerBoxIsScrolled) {
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return [
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SliverOverlapAbsorber(
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handle:
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NestedScrollView.sliverOverlapAbsorberHandleFor(context),
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sliver: SliverAppBar(
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title: const Text('Syncfusion Flutter DataGrid'),
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floating: false,
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pinned: true,
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expandedHeight: 40.0,
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bottom: TabBar(
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labelColor: Colors.black,
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unselectedLabelColor: Colors.grey,
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controller: _tabController,
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isScrollable: true,
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tabs: const [
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Tab(child: Text('1')),
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Tab(child: Text('2')),
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Tab(child: Text('3')),
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],
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),
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),
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),
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];
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},
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body: TabBarView(
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controller: _tabController,
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children: tabs.map((String name) {
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return SafeArea(
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top: false,
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bottom: false,
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child: Builder(
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builder: (BuildContext context) {
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return CustomScrollView(
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key: PageStorageKey<String>(name),
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slivers: [
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SliverOverlapInjector(
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handle:
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NestedScrollView.sliverOverlapAbsorberHandleFor(
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context),
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),
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SliverPadding(
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padding: const EdgeInsets.all(8.0),
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sliver: SliverToBoxAdapter(
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child: buildDataGrid(),
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),
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),
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],
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);
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},
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),
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);
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}).toList(),
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),
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),
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),
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);
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}
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```
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You can download this example on [GitHub](https://github.com/SyncfusionExamples/How-to-inherit-scrolling-from-NestedScrollView-to-Flutter-DataTable).

android/.gitignore

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gradle-wrapper.jar
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/.gradle
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/captures/
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/gradlew
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/gradlew.bat
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/local.properties
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GeneratedPluginRegistrant.java
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.cxx/
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# Remember to never publicly share your keystore.
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# See https://flutter.dev/to/reference-keystore
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key.properties
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**/*.keystore
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**/*.jks

android/app/build.gradle.kts

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plugins {
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id("com.android.application")
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id("kotlin-android")
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// The Flutter Gradle Plugin must be applied after the Android and Kotlin Gradle plugins.
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id("dev.flutter.flutter-gradle-plugin")
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}
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android {
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namespace = "com.example.flutter_application"
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compileSdk = flutter.compileSdkVersion
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ndkVersion = flutter.ndkVersion
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compileOptions {
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sourceCompatibility = JavaVersion.VERSION_11
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targetCompatibility = JavaVersion.VERSION_11
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}
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kotlinOptions {
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jvmTarget = JavaVersion.VERSION_11.toString()
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}
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defaultConfig {
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// TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
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applicationId = "com.example.flutter_application"
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// You can update the following values to match your application needs.
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// For more information, see: https://flutter.dev/to/review-gradle-config.
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minSdk = flutter.minSdkVersion
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targetSdk = flutter.targetSdkVersion
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versionCode = flutter.versionCode
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versionName = flutter.versionName
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}
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buildTypes {
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release {
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// TODO: Add your own signing config for the release build.
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// Signing with the debug keys for now, so `flutter run --release` works.
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signingConfig = signingConfigs.getByName("debug")
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}
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}
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}
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flutter {
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source = "../.."
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}
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<manifest xmlns:android="http://schemas.android.com/apk/res/android">
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<!-- The INTERNET permission is required for development. Specifically,
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the Flutter tool needs it to communicate with the running application
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to allow setting breakpoints, to provide hot reload, etc.
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-->
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<uses-permission android:name="android.permission.INTERNET"/>
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</manifest>
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<manifest xmlns:android="http://schemas.android.com/apk/res/android">
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<application
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android:label="flutter_application"
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android:name="${applicationName}"
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android:icon="@mipmap/ic_launcher">
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<activity
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android:name=".MainActivity"
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android:exported="true"
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android:launchMode="singleTop"
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android:taskAffinity=""
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android:theme="@style/LaunchTheme"
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android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
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android:hardwareAccelerated="true"
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android:windowSoftInputMode="adjustResize">
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<!-- Specifies an Android theme to apply to this Activity as soon as
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the Android process has started. This theme is visible to the user
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while the Flutter UI initializes. After that, this theme continues
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to determine the Window background behind the Flutter UI. -->
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<meta-data
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android:name="io.flutter.embedding.android.NormalTheme"
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android:resource="@style/NormalTheme"
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/>
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<intent-filter>
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<action android:name="android.intent.action.MAIN"/>
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<category android:name="android.intent.category.LAUNCHER"/>
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</intent-filter>
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</activity>
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<!-- Don't delete the meta-data below.
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This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->
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<meta-data
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android:name="flutterEmbedding"
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android:value="2" />
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</application>
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<!-- Required to query activities that can process text, see:
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https://developer.android.com/training/package-visibility and
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https://developer.android.com/reference/android/content/Intent#ACTION_PROCESS_TEXT.
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In particular, this is used by the Flutter engine in io.flutter.plugin.text.ProcessTextPlugin. -->
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<queries>
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<intent>
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<action android:name="android.intent.action.PROCESS_TEXT"/>
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<data android:mimeType="text/plain"/>
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</intent>
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</queries>
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</manifest>
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package com.example.flutter_application
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import io.flutter.embedding.android.FlutterActivity
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class MainActivity : FlutterActivity()
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<?xml version="1.0" encoding="utf-8"?>
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<!-- Modify this file to customize your launch splash screen -->
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<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
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<item android:drawable="?android:colorBackground" />
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<!-- You can insert your own image assets here -->
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<!-- <item>
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<bitmap
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android:gravity="center"
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android:src="@mipmap/launch_image" />
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</item> -->
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</layer-list>
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<?xml version="1.0" encoding="utf-8"?>
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<!-- Modify this file to customize your launch splash screen -->
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<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
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<item android:drawable="@android:color/white" />
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<!-- You can insert your own image assets here -->
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<!-- <item>
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<bitmap
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android:gravity="center"
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android:src="@mipmap/launch_image" />
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</item> -->
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</layer-list>
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