tsc_blue_print 0.0.1

Impresion TSC Bluetooh / Network

example/lib/main.dart

import 'package:flutter/material.dart';
import 'dart:async';

import 'package:flutter/services.dart';
import 'package:tsc_blue_print/tsc_blue_print.dart';
import 'package:bluetooth_thermal_printer/bluetooth_thermal_printer.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatefulWidget {
  const MyApp({Key? key}) : super(key: key);

  @override
  State<MyApp> createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  String _platformVersion = 'Unknown';
  final _tscBluePrintPlugin = TscBluePrint();

  String device = "";
  bool connected = true;
  List availableBluetoothDevices = [];



  @override
  void initState() {
    super.initState();
    initPlatformState();
  }

  // Platform messages are asynchronous, so we initialize in an async method.
  Future<void> initPlatformState() async {
    String platformVersion;
    // Platform messages may fail, so we use a try/catch PlatformException.
    // We also handle the message potentially returning null.
    try {
      platformVersion =
          await _tscBluePrintPlugin.getPlatformVersion() ?? 'Unknown platform version';
    } on PlatformException {
      platformVersion = 'Failed to get platform version.';
    }

    // If the widget was removed from the tree while the asynchronous platform
    // message was in flight, we want to discard the reply rather than calling
    // setState to update our non-existent appearance.
    if (!mounted) return;

    setState(() {
      _platformVersion = platformVersion;
    });
  }

  Future<void> getBluetooth() async {
    final List? bluetooths = await BluetoothThermalPrinter.getBluetooths;
    print("Print $bluetooths");
    setState(() {
      availableBluetoothDevices = bluetooths == null? [] : bluetooths;
    });
  }

  Future<void> setConnect(String mac) async {
    print(mac);
    final String? result = await BluetoothThermalPrinter.connect(mac);
    print("state conneected $result");
    if (result == "true") {
      setState(() {
        connected = true;
      });
    }
  }

  Future<void> inbound() async {
    String printMessage;
    String idAddress = device;
    String product = "Prueba";
    print(idAddress);
    try {
      printMessage = await _tscBluePrintPlugin.print_blue(
        ipAddress: "20:20:11:24:36:15",
        tara: "0.58",
        bruto: "11.81",
        fecha_prod: "03/22/2020",
        peso: "11.23",
        vendor: "PEC. SAN FRANCISCO(MAIZALES)",
        expiryDate: '03/22/2020',
        productCode: 'FV-VOS-EDFLMG',
        num: 1
      );
    } on PlatformException {
      printMessage = 'Failed to communcate with this printer. ';
    }

    print(printMessage);
  }


  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: const Text('Plugin example app'),
        ),
        body: Scaffold(
          appBar: AppBar(
            title: Text("Test de Impresion TSC", style: TextStyle( color: Colors.brown)),
            centerTitle: true,
            backgroundColor: Colors.white,
            iconTheme: IconThemeData(
                color: Colors.brown
            ),
            actions: [
            ],
          ),
          body: Container(
            padding: EdgeInsets.all(20),
            child: Column(
              crossAxisAlignment: CrossAxisAlignment.start,
              children: [
                Text("Search Paired Bluetooth"),
                TextButton(
                  onPressed: () {
                    this.getBluetooth();
                  },
                  child: Text("Search"),
                ),
                Container(
                  height: 200,
                  child: ListView.builder(
                    itemCount: availableBluetoothDevices.length > 0
                        ? availableBluetoothDevices.length
                        : 0,
                    itemBuilder: (context, index) {
                      return ListTile(
                        onTap: () {
                          String select = availableBluetoothDevices[index];
                          List list = select.split("#");
                          // String name = list[0];
                          String mac = list[1];
                          this.setConnect(mac);
                        },
                        title: Text('${availableBluetoothDevices[index]}'),
                        subtitle: Text("Click to connect"),
                      );
                    },
                  ),
                ),
                SizedBox(
                  height: 30,
                ),
                TextButton(
                  onPressed: connected ? this.inbound : null,
                  child: Text("Print"),
                ),
              ],
            ),
          ),
        ),
      ),
    );
  }
}