nrb 1.0.12

A Flutter package for building structured and customizable report layouts.

example/lib/main.dart

import 'dart:io' show Directory, File;

import 'package:flutter/foundation.dart' show kIsWeb, kDebugMode;
import 'package:flutter/material.dart';
import 'package:nrb/nrb.dart';

void main() {
  runApp(MyReportBuilderApp());
}

class MyReportBuilderApp extends StatefulWidget {
  const MyReportBuilderApp({super.key});

  @override
  State<MyReportBuilderApp> createState() => _MyReportBuilderAppState();
}

class _MyReportBuilderAppState extends State<MyReportBuilderApp> {

  // 1. Create the controller
  final ReportController _reportController = ReportController();

  final List<HeaderCell> headers = [
    HeaderCell(text: "Secondary", span: 3, backgroundColor: Colors.green),
    HeaderCell(text: "Primary", span: 3, backgroundColor: Colors.green),
  ];

  final List<SubHeaderCell> subHeaders = [
    SubHeaderCell(text: "Target", backgroundColor: Colors.green, foregroundColor: Colors.white,),
    SubHeaderCell(text: "Actual", backgroundColor: Colors.green, foregroundColor: Colors.white,),
    SubHeaderCell(text: "%", backgroundColor: Colors.green, foregroundColor: Colors.white,),
    SubHeaderCell(text: "Target", backgroundColor: Colors.green, foregroundColor: Colors.white,),
    SubHeaderCell(text: "Actual", backgroundColor: Colors.green, foregroundColor: Colors.white,),
    SubHeaderCell(text: "%", backgroundColor: Colors.green, foregroundColor: Colors.white,),
  ];

  final leftColumns = [
    TextCell(itemContent: "01-Nov-2025"),
    TextCell(itemContent: "02-Nov-2025"),
    TextCell(itemContent: "03-Nov-2025"),
    TextCell(itemContent: "04-Nov-2025"),
    TextCell(itemContent: "05-Nov-2025"),
  ];

  final tableData = [
    [
      TextCell(itemContent: "10,99,493", textAlignment: Alignment.centerRight),
      TextCell(itemContent: "9,34,839", textAlignment: Alignment.centerRight),
      TextCell(itemContent: "85.07%"),
      TextCell(itemContent: "10,99,493", textAlignment: Alignment.centerRight),
      TextCell(itemContent: "9,34,839", textAlignment: Alignment.centerRight),
      TextFieldCell(initialValue: "85.07%"),
    ],
    [
      TextCell(itemContent: "10,99,493", textAlignment: Alignment.centerRight),
      TextCell(itemContent: "9,34,839", textAlignment: Alignment.centerRight),
      TextCell(itemContent: "85.07%"),
      TextCell(itemContent: "10,99,493", textAlignment: Alignment.centerRight),
      TextCell(itemContent: "9,34,839", textAlignment: Alignment.centerRight),
      TextCell(itemContent: "85.07%"),
    ],
    [
      TextCell(itemContent: "10,99,493", textAlignment: Alignment.centerRight),
      TextCell(itemContent: "9,34,839", textAlignment: Alignment.centerRight),
      TextCell(itemContent: "85.07%"),
      TextCell(itemContent: "10,99,493", textAlignment: Alignment.centerRight),
      TextCell(itemContent: "9,34,839", textAlignment: Alignment.centerRight),
      TextCell(itemContent: "85.07%"),
    ],
    [
      TextCell(itemContent: "10,99,493", textAlignment: Alignment.centerRight),
      TextCell(itemContent: "9,34,839", textAlignment: Alignment.centerRight),
      TextCell(itemContent: "85.07%"),
      TextCell(itemContent: "10,99,493", textAlignment: Alignment.centerRight),
      TextCell(itemContent: "9,34,839", textAlignment: Alignment.centerRight),
      TextCell(itemContent: "85.07%"),
    ],
    [
      TextCell(itemContent: "10,99,493", textAlignment: Alignment.centerRight),
      TextCell(itemContent: "9,34,839", textAlignment: Alignment.centerRight),
      TextCell(itemContent: "85.07%"),
      TextCell(itemContent: "10,99,493", textAlignment: Alignment.centerRight),
      TextCell(itemContent: "9,34,839", textAlignment: Alignment.centerRight),
      TextCell(itemContent: "85.07%"),
    ],

  ];

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      theme: ThemeData(primarySwatch: Colors.blue),
      home: Scaffold(
        appBar: AppBar(title: const Text('Report Builder')),
        body: SizedBox(
          width: double.infinity,
          child: Column(
            mainAxisAlignment: MainAxisAlignment.start,
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [
              Flexible(
                child: ReportMaker(
                  headers: headers,
                  subHeaders: subHeaders,
                  leftColumn: leftColumns,
                  tableData: tableData,
                  stickyHeaderLabel: "Tran",
                  stickyHeaderBackgroundColor: Colors.green,
                  enableDownload: true,
                  showDownloadFloatingButton: true,
                  packageName: "com.innovatenestlabs.example", // <-- ADD THIS
                  controller: _reportController,
                  onDownloadCompleted: (bytes, fileName) async {
                    if (kIsWeb) {
                      // WebSaveHelper.saveFile(bytes, fileName);
                      if (kDebugMode) {
                        print("in Web");
                      }
                    } else {
                      // MOBILE/DESKTOP LOGIC (dart:io is safe here)
                      final directory = Directory('/storage/emulated/0/Download');
                      if (!await directory.exists()) {
                        await directory.create(recursive: true);
                      }
                      final file = File('${directory.path}/$fileName');
                      await file.writeAsBytes(bytes);

                      if (kDebugMode) {
                        print('File saved to: ${file.path}');
                      }

                    }
                  },
                ),
              ),
              const SizedBox(height: 5,),
              ElevatedButton(
                onPressed: () {
                  // 3. Trigger data extraction!
                  List<List<String>> finalData = _reportController.getSubmitData();
                  if (kDebugMode) {
                    print(finalData[0][6]);
                  }
                },
                child: Text("Submit Report"),
              )
            ],
          ),
        ),
      ),
    );
  }
}