在Flutter中,可以使用PaginatedDataTable
小部件來(lái)實(shí)現(xiàn)在GridView中進(jìn)行分頁(yè)。PaginatedDataTable
結(jié)合了DataTable
和PaginatedDataTableSource
來(lái)處理分頁(yè)和數(shù)據(jù)源。
下面是一個(gè)簡(jiǎn)單的示例,演示了如何在GridView中進(jìn)行分頁(yè):
paginated_data_table
包添加到你的pubspec.yaml
文件中:dependencies:
flutter:
sdk: flutter
paginated_data_table: ^1.0.0
package:paginated_data_table/paginated_data_table.dart
和package:paginated_data_table/paginated_data_table_source.dart
:import 'package:flutter/material.dart';
import 'package:paginated_data_table/paginated_data_table.dart';
import 'package:paginated_data_table/paginated_data_table_source.dart';
MyDataTableSource
,繼承自PaginatedDataTableSource
:class MyDataTableSource extends PaginatedDataTableSource {
final List<dynamic> data;
MyDataTableSource(this.data);
@override
DataRow? getRow(int index) {
if (index >= data.length) {
return null;
}
final item = data[index];
return DataRow.byIndex(
index: index,
cells: [
DataCell(Text(item['name'])),
DataCell(Text(item['age'].toString())),
DataCell(Text(item['gender'])),
],
);
}
@override
bool get isRowCountApproximate => false;
@override
int get rowCount => data.length;
@override
int get selectedRowCount => 0;
}
build
方法中,創(chuàng)建一個(gè)PaginatedDataTable
小部件,并將自定義的數(shù)據(jù)源傳遞給它:@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text('Paginated GridView Demo'),
),
body: PaginatedDataTable(
header: Text('Students'),
columns: [
DataColumn(label: Text('Name')),
DataColumn(label: Text('Age')),
DataColumn(label: Text('Gender')),
],
source: MyDataTableSource(data), // 傳遞自定義的數(shù)據(jù)源
rowsPerPage: 10, // 每頁(yè)顯示的行數(shù)
),
);
}
這樣,你就可以在GridView中進(jìn)行分頁(yè)了。同時(shí),你可以根據(jù)自己的需求來(lái)優(yōu)化和定制數(shù)據(jù)源類和分頁(yè)小部件。