weight 0.0.18 
weight: ^0.0.18 copied to clipboard
A new Flutter plugin for weight and print.
import 'dart:collection';
import 'package:flutter/material.dart';
import 'dart:async';
import 'package:flutter/services.dart';
import 'package:weight/weight.dart';
import 'package:weight/weight_constants.dart';
import 'package:weight/weigh_detail_model.dart';
import 'package:weight/weigh_print_model.dart';
void main() {
runApp(MyApp());
}
class MyApp extends StatefulWidget {
@override
_MyAppState createState() => _MyAppState();
}
class _MyAppState extends State<MyApp> {
String weightNetWeight; //打印回调净重
String weightUnit;
bool isZero;
bool isStable;
bool isCurrentPrintSuccess = false;
@override
void initState() {
super.initState();
Weight.weightChannelOpen;
Weight.onWeightChange.listen((event) {
if(event is WeighDetailModel){
String weightModel =event.model;
String weightStatus = event.status;
isZero = event.isZero;
isStable = event.isStable;
weightNetWeight = event.netWeight;
printWhenStable();
if (isZero) {
isCurrentPrintSuccess = false;
}
if (mounted) {
setState(() {
weightNetWeight = event.netWeight;
});
}
}
// print("回调");
});
}
@override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
appBar: AppBar(
title: const Text('Plugin example app'),
),
body: Center(
child: Column(
children: <Widget>[
Container(
height: 100,
width: 100,
color: Colors.red,
child: InkWell(
onTap: () async {
//拼接打印参数
HashMap hashMap = HashMap<String, String>();
//标题
hashMap.putIfAbsent(
WeightConstants.PRINT_PARAM_TITLE, () => "电饭锅梵蒂冈");
//规格
hashMap.putIfAbsent(
WeightConstants.PRINT_PARAM_SPEC, () => "100ml*100");
//净重
hashMap.putIfAbsent(WeightConstants.PRINT_PARAM_NET_WEIGHT,
() => weightNetWeight);
//打印时间(必须是YYYYMMDD)
hashMap.putIfAbsent(
WeightConstants.PRINT_PARAM_TIME, () => "20200101");
//存储条件
hashMap.putIfAbsent(
WeightConstants.PRINT_PARAM_STORE_CONDITION,
() => "常温");
//原料码
hashMap.putIfAbsent(
WeightConstants.PRINT_PARAM_MATERIAL_CODE,
() => "34234562");
//SKU码
hashMap.putIfAbsent(WeightConstants.PRINT_PARAM_SKU_CODE,
() => "dfgdfgdfgdfg-34435-2");
//唯一码
hashMap.putIfAbsent(WeightConstants.PRINT_PARAM_PACKAGE_NUM,
() => "WH00000000012345");
//打印前先判断打印机状态
int printStatusInt =
await Weight.weightChannelGetIntPrintStatus;
if (printStatusInt == 0) {
//打印机状态正常
bool printBool =
await Weight.weightChannelPrintBitmap(hashMap);
if (printBool) {
print("打印成功");
} else {
print("打印失败");
}
} else {
//打印机状态异常,查询具体异常信息
String printStatusString =
await Weight.weightChannelGetStringPrintStats;
print(printStatusString);
}
},
),
),
Container(
height: 100,
width: 100,
color: Colors.blue,
child: InkWell(
onTap: () async {
String zeroString = await Weight.weightChannelSetZero;
print(zeroString);
},
),
),
Container(
height: 100,
width: 100,
color: Colors.green,
child: InkWell(
onTap: () async {
// * 查询打印机状态,0是正常,不剥纸时可 返回2（未取纸）时也进行打印
// * @return
// * case 1:
// * showmsg("打印机缺纸");
// * break;
// * case 2:
// * showmsg("打印机未取纸");
// * break;
// * case 3:
// * showmsg("打印机开盖");
// * break;
// * case 4:
// * showmsg("打印机高温");
// * break;
// * case 5:
// * showmsg("打印机定位异常");
// * break;
// * case 6:
// * showmsg("打印机忙");
// * break;
// * case 7:
// * showmsg("打印机未知异常");
// * break;
String printStatusString =
await Weight.weightChannelGetStringPrintStats;
print(printStatusString);
},
),
),
Container(
height: 100,
width: 100,
color: Colors.yellow,
child: InkWell(
onTap: () async {
// * 查询打印机状态,0是正常,不剥纸时可 返回2（未取纸）时也进行打印
// * @return
// * case 1:
// * showmsg("打印机缺纸");
// * break;
// * case 2:
// * showmsg("打印机未取纸");
// * break;
// * case 3:
// * showmsg("打印机开盖");
// * break;
// * case 4:
// * showmsg("打印机高温");
// * break;
// * case 5:
// * showmsg("打印机定位异常");
// * break;
// * case 6:
// * showmsg("打印机忙");
// * break;
// * case 7:
// * showmsg("打印机未知异常");
// * break;
int printStatusInt =
await Weight.weightChannelGetIntPrintStatus;
print(printStatusInt);
},
),
),
Container(
height: 100,
width: 100,
color: Colors.lightBlueAccent,
child: Row(
children: <Widget>[
Text(weightNetWeight ?? '0'),
Text(weightUnit ?? '')
],
),
)
],
),
),
),
);
}
Future<bool> printWhenStable() async {
//不在0点并且稳定, 且当前物品没有打印成功 开始自动打印
if (!isZero && isStable && !isCurrentPrintSuccess) {
WeighPrintModel weighPrintModel = WeighPrintModel("刚哥威武霸气吊炸天","10000ml*19","200","2020-11-12 23:31:43","刚哥咋这nb","1203912389","SJ989-23SDF-23RK","SJ989-SDFKJ1-1498723SDF-23RK");
weighPrintModel.skuName = "刚哥威武霸气吊炸天";
weighPrintModel.skuSpec = "10000ml*19";
weighPrintModel.netWeigh = "200";
weighPrintModel.createTime = "2020-11-12 23:31:43";
weighPrintModel.storeCondition = "刚哥咋这nb";
weighPrintModel.materialCode = "1203912389";
weighPrintModel.skuCode = "SJ989-23SDF-23RK";
weighPrintModel.snCode = "SJ989-SDFKJ1-1498723SDF-23RK";
isCurrentPrintSuccess =await Weight.weightChannelPrint(weighPrintModel);
if(!isCurrentPrintSuccess){
//打印机状态不正常,查询具体异常信息
String printStatusString =
await Weight.weightChannelGetStringPrintStats; //具体异常信息
}
return isCurrentPrintSuccess;
// //判断打印机状态
// int printStatusInt = await Weight.weightChannelGetIntPrintStatus;
// if (printStatusInt == 0) {
//
// //打印机状态正常
// //拼接打印参数
// HashMap hashMap = HashMap<String, String>();
// //标题
// hashMap.putIfAbsent(WeightConstants.PRINT_PARAM_TITLE, () => "电饭锅梵蒂冈");
// //规格
// hashMap.putIfAbsent(
// WeightConstants.PRINT_PARAM_SPEC, () => "100ml*100");
// //净重
// hashMap.putIfAbsent(
// WeightConstants.PRINT_PARAM_NET_WEIGHT, () => weightNetWeight);
// //打印时间(必须是YYYYMMDD)
// hashMap.putIfAbsent(WeightConstants.PRINT_PARAM_TIME, () => "20200101");
// //存储条件
// hashMap.putIfAbsent(
// WeightConstants.PRINT_PARAM_STORE_CONDITION, () => "常温");
// //原料码
// hashMap.putIfAbsent(
// WeightConstants.PRINT_PARAM_MATERIAL_CODE, () => "34234562");
// //SKU码
// hashMap.putIfAbsent(
// WeightConstants.PRINT_PARAM_SKU_CODE, () => "dfgdfgdfgdfg-34435-2");
// //唯一码
// hashMap.putIfAbsent(
// WeightConstants.PRINT_PARAM_PACKAGE_NUM, () => "WH00000000012345");
//
// //开始打印
// isCurrentPrintSuccess = await Weight.weightChannelPrintBitmap(hashMap);
// if (isCurrentPrintSuccess) {
// print("打印成功");
// } else {
// print("打印失败");
// }
// return isCurrentPrintSuccess;
// } else {
// //打印机状态不正常,查询具体异常信息
// String printStatusString =
// await Weight.weightChannelGetStringPrintStats; //具体异常信息
// return false;
// }
} else {
return false;
}
}
@override
void dispose() {
// TODO: implement dispose
super.dispose();
Weight.weightChannelClose;
}
}Metadata
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A new Flutter plugin for weight and print.
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