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hy_printer
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修改关闭链接，优化连接蓝牙

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master
章文轩 2 years ago
parent 1d11eb7b2c
commit 3d16fd8ee1
5 changed files with 230 additions and 135 deletions
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166
android/src/main/java/com/hy/print/hy_printer/Bluetooth.java
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@ -164,16 +164,17 @@ public class Bluetooth {
//搜索设备
public void SearchingBTDevice() {
new CheckTypesTask().execute();
System.out.println("开始搜索");
}
public int btConn(final String address, Context context) throws Exception {
// bluetoothPort.connect(address);
//final int[] portOpen = {};
final int[] portOpen = new int[1];
public void btConn(final String address, Context context) throws Exception {
System.out.println("btConn");
btThread = new Thread(new Runnable() {
@Override
@ -181,9 +182,11 @@ public class Bluetooth {
// TODO Auto-generated method stub
try {
System.out.println(address);
portOpen[0] = PrinterHelper.portOpenBT(context,address);
PrinterHelper.logcat("portOpen:"+ portOpen[0]);
System.out.println(portOpen[0]);
final int result = PrinterHelper.portOpenBT(context,address);
PrinterHelper.logcat("portOpen result:"+ result);
System.out.println(result);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
@ -193,8 +196,6 @@ public class Bluetooth {
btThread.start();
//final int result = PrinterHelper.portOpenBT(context,address);
//new connBT().execute(address);
return portOpen[0];
}
//断开连接
@ -202,9 +203,15 @@ public class Bluetooth {
try {
// bluetoothPort.disconnect();
PrinterHelper.portClose();
if ((btThread != null) && (btThread.isAlive()))
btThread.interrupt();
// if ((btThread != null) && (btThread.isAlive()))
// btThread.interrupt();
if ((btThread != null) && (btThread.isAlive())) {
Thread dummy = btThread;
btThread = null;
dummy.interrupt();
}else{
return;
}
disconnectflags = true;
context.unregisterReceiver(connectDevice);
@ -271,53 +278,45 @@ public class Bluetooth {
class connBT extends AsyncTask<String, Void, Integer> {
@Override
protected Integer doInBackground(String... strings) {
Integer retVal = null;
//bluetoothPort.connect(strings[0]);
retVal = Integer.valueOf(0);
return retVal;
}
@Override
protected void onPreExecute() {
super.onPreExecute();
}
@Override
protected void onPostExecute(Integer result) {
if (result.intValue() == 0) // Connection success.
{
// RequestHandler rh = new RequestHandler();
// btThread = new Thread(rh);
// btThread.start();
} else // Connection failed.
{
}
super.onPostExecute(result);
}
}
// class connBT extends AsyncTask<String, Void, Integer> {
//
//
// @Override
// protected Integer doInBackground(String... strings) {
// Integer retVal = null;
//
// //bluetoothPort.connect(strings[0]);
//
// retVal = Integer.valueOf(0);
//
// return retVal;
// }
//
// @Override
// protected void onPreExecute() {
//
// super.onPreExecute();
// }
//
// @Override
// protected void onPostExecute(Integer result) {
// if (result.intValue() == 0) // Connection success.
// {
//// RequestHandler rh = new RequestHandler();
//// btThread = new Thread(rh);
//// btThread.start();
// } else // Connection failed.
// {
//
// }
// super.onPostExecute(result);
// }
// }
public void ExcuteDisconnect(Context context) {
new ExcuteDisconnectBT().execute(context);
}
private class ExcuteDisconnectBT extends AsyncTask<Context, Void, Void> {
@Override
protected Void doInBackground(Context... contexts) {
// new ExcuteDisconnectBT().execute(context);
try {
DisconnectDevice(contexts[0]);
DisconnectDevice(context);
while (true) {
if (disconnectflags)
@ -329,24 +328,45 @@ public class Bluetooth {
// TODO Auto-generated catch block
e.printStackTrace();
}
return null;
}
@Override
protected void onPreExecute() {
super.onPreExecute();
}
;
@Override
protected void onPostExecute(Void result) {
disconnectflags = false;
super.onPostExecute(result);
}
;
}
// private class ExcuteDisconnectBT extends AsyncTask<Context, Void, Void> {
//
//
// @Override
// protected Void doInBackground(Context... contexts) {
// try {
// DisconnectDevice(contexts[0]);
//
// while (true) {
// if (disconnectflags)
// break;
//
// Thread.sleep(100);
// }
// } catch (InterruptedException e) {
// // TODO Auto-generated catch block
// e.printStackTrace();
// }
// return null;
// }
//
// @Override
// protected void onPreExecute() {
// super.onPreExecute();
// }
//
// ;
//
//
// @Override
// protected void onPostExecute(Void result) {
// disconnectflags = false;
// super.onPostExecute(result);
// }
//
// ;
// }
}

23
android/src/main/java/com/hy/print/hy_printer/HyPrinterPlugin.java
Unescape View File

@ -4,7 +4,6 @@ import android.content.Context;
import androidx.annotation.NonNull;
import cpcl.PrinterHelper;
import io.flutter.embedding.engine.plugins.FlutterPlugin;
import io.flutter.plugin.common.EventChannel;
import io.flutter.plugin.common.MethodCall;
@ -66,14 +65,12 @@ public class HyPrinterPlugin implements FlutterPlugin, MethodCallHandler {
if (call.method.equals("startSearch")) {
bluetooth.SearchingBTDevice();
} else if (call.method.equals("connect")) {
int code;
String arg = call.argument("address");
System.out.println(arg);
try {
code = bluetooth.btConn(arg,context);
System.out.println(code);
//PrinterHelper.portOpenBT(context,"04:7F:0E:95:FD:A1");
result.success(code);
System.out.println("开始打印");
bluetooth.btConn(arg,context);
result.success(true);
} catch (Exception e) {
e.printStackTrace();
}
@ -105,19 +102,11 @@ public class HyPrinterPlugin implements FlutterPlugin, MethodCallHandler {
}
result.success(sta);
} else if (call.method.equals("disposeDiscovery")) {
try {
PrinterHelper.portClose();
} catch (Exception e) {
e.printStackTrace();
}
bluetooth.cancelDiscoveryResult(context);
result.success(true);
} else if (call.method.equals("disposeConnect")) {
try {
PrinterHelper.portClose();
} catch (Exception e) {
e.printStackTrace();
}
bluetooth.ExcuteDisconnect(context);
result.success(true);
}

149
example/lib/main.dart
Unescape View File

@ -21,33 +21,14 @@ class MyApp extends StatefulWidget {
class _MyAppState extends State<MyApp> {
List<Device> devices = [];
var cancel;
@override
void initState() {
super.initState();
initPlatformState();
}
// Future<void> initPlatformState() async {
// if (!mounted) return;
// setState(() {});
// }
Future<void> initPlatformState() async {
// var per = await Permission.bluetooth.isGranted;
// if (!per) {
// Permission.bluetooth.request();
// }
// var pers = await Permission.locationWhenInUse.isGranted;
// if (!pers) {
// Permission.locationWhenInUse.request();
// }
// var per1 = await Permission.bluetoothScan.isGranted;
// if (!per1) {
// Permission.bluetoothScan.request();
// }
// var per2 = await Permission.bluetoothConnect.isGranted;
// if (!per2) {
// Permission.bluetoothConnect.request();
// }
DjPrinter().init();
DjPrinter().addDiscoveryListen(onReceive: (data) {
@ -58,25 +39,23 @@ class _MyAppState extends State<MyApp> {
address: js['address'],
isPaired: js['isPaired']));
}
setState(() {});
}, onStart: () {
print("————————————————————————");
}, onFinish: () {
print('——————————————————————————————');
DjPrinter().cancelDiscovery();
cancel();
});
DjPrinter().addConnectListen(onConnect: () {
print("connected");
}, onDisconnect: () {
print('disconnected');
});
print('jieshu');
}
@override
Widget build(BuildContext context) {return MaterialApp(
title: '安速货运',
@ -87,10 +66,130 @@ class _MyAppState extends State<MyApp> {
child: BotToastInit().call(context, widget));
},
navigatorObservers: [BotToastNavigatorObserver()],
home: const ScanPage()
home: Scaffold(
backgroundColor: Colors.white,
appBar: AppBar(
title: const Text('设备列表',style: TextStyle(color: Colors.white),),
),
body: Center(
child: Column(
children: [
TextButton(
onPressed: () {
devices.clear();
setState(() {});
cancel =
BotToast.showLoading(wrapToastAnimation: (controller, func, child) {
return discoveryLoadingWidget();
});
DjPrinter().startSearch;
},
child: const Text('扫描设备')),
// TextButton(onPressed: () {}, child: const Text('打印')),
const SizedBox(
height: 20,
),
...devices
.map((e) => TextButton(
onPressed: ()async {
BotToast.showLoading(wrapToastAnimation: (controller, func, child) {
return discoveryLoadingWidget();
});
await DjPrinter().connect(e.address).then((value) {
print("main value result");
print(value);
if(value!=null&&value){
BotToast.closeAllLoading();
}
});
// Future.delayed(Duration(seconds: 3), () async {
// if(value==0){
// BotToast.closeAllLoading();
// }
// });
},
child: Column(
children: [
Text(e.name),
Text(e.address),
],
)))
.toList(),
const SizedBox(
height: 20,
),
TextButton(
onPressed: () {
DjPrinter().printNewAScode(
code: 'ASSZ000000002',
barCode: 'ASSZ0000000020001',
channel: '加拿大温哥华海派快线-卡派 / UPS派送',
country: '美国啊啊',
num: '2',
sum:'99',
offset: 0,
hasPlan: true, );
},
child: const Text('nocode打印')),
TextButton(
onPressed: () {
DjPrinter().printNewAScode(
code: 'ASSZ000000002',
barCode: 'ASSZ0000000020001',
channel: '加拿大温哥华海派快线-卡派 / UPS派送',
country: '美国',
num: '2',
sum:'999',
offset: 0,
hasPlan: false, );
},
child: const Text('noplan打印')),
const SizedBox(
height: 20,
),
TextButton(
onPressed: () {
DjPrinter().disposeConnect();
},
child: const Text('取消链接')),
],
),
),
)
);
}
Container discoveryLoadingWidget() {
return Container(
padding: const EdgeInsets.all(15),
decoration: const BoxDecoration(
color: Colors.black54,
borderRadius: BorderRadius.all(Radius.circular(8))),
child: Row(
mainAxisSize: MainAxisSize.min,
children: [
CircularProgressIndicator(
backgroundColor: Colors.white,
),
Text(
'扫描中……请稍作等待',
style: TextStyle(
color: Colors.white,
fontSize: 18,
fontWeight: FontWeight.bold,
),
)
],
),
);
}
}

19
example/lib/scan_page.dart
Unescape View File

@ -69,6 +69,7 @@ class _ScanPageState extends State<ScanPage> {
}, onDisconnect: () {
print('disconnected');
});
print('jieshu');
}
@ -77,8 +78,9 @@ class _ScanPageState extends State<ScanPage> {
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: Colors.white,
appBar: AppBar(
title: const Text('设备列表'),
title: const Text('设备列表',style: TextStyle(color: Colors.white),),
),
body: Center(
child: Column(
@ -101,19 +103,8 @@ class _ScanPageState extends State<ScanPage> {
...devices
.map((e) => TextButton(
onPressed: ()async {
BotToast.showLoading(wrapToastAnimation: (controller, func, child) {
return discoveryLoadingWidget();
});
int? value = await DjPrinter().connect(e.address);
Future.delayed(Duration(seconds: 3), () async {
if(value==0){
BotToast.closeAllLoading();
}else{
BotToast.closeAllLoading();
}
});
await DjPrinter().connect(e.address);
},

8
lib/dj_printer.dart
Unescape View File

@ -78,14 +78,10 @@ class DjPrinter {
bool get hasInit => _hasInit;
Future<int?> connect(String address) async {
Future<bool?> connect(String address) async {
await Future.delayed(const Duration(milliseconds: 2000), () async {
var res = await _channel.invokeMethod('connect', {'address': address});
print('connect');
print(res);
final res = await _channel.invokeMethod('connect', {'address': address});
return res;
});
}
void disposeDiscovery() {

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