btprinter 0.0.6 btprinter: ^0.0.6 copied to clipboard
A new flutter plugin project.
import 'package:flutter/material.dart';
import 'dart:async';
import 'package:flutter/services.dart';
import 'package:btprinter/btprinter.dart';
void main() {
runApp(TestApp());
}
class TestApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Welcome to Flutter',
debugShowCheckedModeBanner: false,
home: MyApp(),
);
}
}
class MyApp extends StatefulWidget {
@override
_MyAppState createState() => _MyAppState();
}
class _MyAppState extends State<MyApp> {
String _result = 'failed';
String _resultConnect = 'failed';
Stream<int> _connectListener;
@override
void initState() {
super.initState();
}
Future<void> setDevice(String _address) async {
String result;
try {
result = await Btprinter.connectDevices(_address);
} on PlatformException {
result = "Failed";
}
setState(() {
_result = result;
});
}
void _onLoading() {
showDialog(
context: context,
barrierDismissible: false,
builder: (BuildContext context) {
return Dialog(
child: Container(
padding: EdgeInsets.all(10.0),
child: new Row(
mainAxisSize: MainAxisSize.min,
children: [
new CircularProgressIndicator(),
Text('กำลังส่งเชื่อมต่อ')
],
),
),
);
},
);
}
void connect() {
setDevice('66:22:3E:0E:24:03');
_connectListener = Btprinter.getBtPrinterStream_returnStream('functionA')
..listen((result) {
print('result from test-returnStream=$result');
if (result == 0) {
printData('เชื่อมต่อสำเร็จ');
printBarcode('2800099058214');
Btprinter.fujunClosePort();
} else if (result == 7) {
print('try again');
}
});
}
void connectZenpert() {
setDevice('DC:0D:30:F5:73:8A');
_connectListener =
Btprinter.getZenpertBtPrinterStream_returnStream('functionA')
..listen((result) {
print('result from test-returnStream=$result');
if (result == 0) {
printZenpertText('เชื่อมต่อสำเร็จ');
Btprinter.zenpertClosePort();
} else if (result == 7) {
print('try again');
}
});
}
Future<void> printData(String _data) async {
String result;
_data = _data + '\n';
try {
result = await Btprinter.printString(_data);
} on PlatformException {}
}
Future<void> printBarcode(String _data) async {
String result;
try {
result = await Btprinter.printBarcode(_data);
} on PlatformException {}
}
Future<void> printQrCode(String _data) async {
String result;
try {
result = await Btprinter.printQrCode(_data);
} on PlatformException {}
}
Future<void> printZenpertText(String _data) async {
String result;
try {
result = await Btprinter.zenpertPrintString(_data);
} on PlatformException {}
}
Future<void> printZenpertBarcode(String _data) async {
String result;
try {
result = await Btprinter.zenpertPrintBarcode(_data);
} on PlatformException {}
}
Future<void> printZenpertQrCode(String _data) async {
String result;
try {
result = await Btprinter.zenpertPrintQrCode(_data);
} on PlatformException {}
}
@override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
appBar: AppBar(
title: Text('Bluetooth Fujun'),
),
body: Column(
children: <Widget>[
// StreamBuilder(
// stream: _connectListener,
// builder: (context, snapshot) {
// return Text('${_resultConnect}');
// }),
Center(
child: RaisedButton(
onPressed: () {
connect();
},
child: Text('connect fujun'),
),
),
Center(
child: RaisedButton(
onPressed: () {
connectZenpert();
},
child: Text('connect zenpert'),
),
),
],
),
),
);
}
}