iOS蓝牙连接打印机，打印小票

我们看看打印出来的效果

打印小票数据处理，针对服务器返回的数据进行数据封装成model dataPrint是服务器返回的json数据

- (HLPrinter *)getPrinter{PrinterModel *printModel = [PrinterModel mj_objectWithKeyValues:dataPrint];HLPrinter *printer = [[HLPrinter alloc] init];[printer appendText:[NSString stringWithFormat:@"【%@】",printModel.orderTitle] alignment:HLTextAlignmentCenter];[printer appendText:@"- - 已支付 - -" alignment:HLTextAlignmentCenter];[printer appendSeperatorLine];[printer appendTitle:@"订单编号 :" value:printModel.orderNumber valueOffset:130];[printer appendTitle:@"下单时间 :" value:printModel.orderCreateTime valueOffset:130];[printer appendSeperatorLine];NSMutableString *customerName = [[NSMutableString alloc] initWithString:printModel.customerName];if(customerName.length >= 36){ // 客户名称[customerName substringToIndex:36];[customerName deleteCharactersInRange:NSMakeRange(36, customerName.length-36)];[customerName insertString:@"            " atIndex:18];}else if (customerName.length >= 18) {[customerName insertString:@"            " atIndex:18];}[printer appendTitle:@"客户名称 :" value:customerName valueOffset:130];[printer appendTitle:@"单据类型 :" value:printModel.orderType valueOffset:130];[printer appendTitle:@"销售人员 :" value:printModel.salesMan valueOffset:130];[printer appendTitle:@"销售部门 :" value:printModel.salesDepartment valueOffset:130];[printer appendTitle:@"发货仓库 :" value:printModel.warehouse valueOffset:130];[printer appendSeperatorLine];[printer appendFourLinesText:@"商品名称" middleText:@"数量" rightText:@"单位" moneyText:@"价格(元)" isTitle:YES];NSMutableArray *arrProduct = [self showProductData:printModel]; // 拼装商品信息for (ProductBeans *product in arrProduct) {[printer appendFourLinesText:product.productName middleText:product.productCount rightText:product.productUnit moneyText:product.productPrice  isTitle:NO];}[printer appendSeperatorLine];[printer appendSubtotalText:@"小计" centerText:printModel.productCount rightText:printModel.productTotalPrice isTitle:YES];[printer appendSeperatorLine];if (printModel.giftBeans.count > 0) { // 赠送商品大于0显示赠品[printer appendText:@"【赠送商品】" alignment:HLTextAlignmentCenter];[printer appendNewLine];[printer appendLeftText:@"商品名称" middleText:@"数量" rightText:@"单位" isTitle:YES];NSMutableArray *arrGift = [self showGiftData:printModel]; //拼装赠送商品信息for (GiftBeans *gift in arrGift) {[printer appendLeftText:gift.productName middleText:gift.productCount rightText:gift.productUnit isTitle:NO];}[printer appendSeperatorLine];[printer appendTitle:@"小计" value:printModel.giftCount valueOffset:500 - 62];[printer appendSeperatorLine];}CGFloat titleWidth = [printModel.totalPrice boundingRectWithSize:CGSizeMake(CGFLOAT_MAX, 18) options:NSStringDrawingUsesLineFragmentOrigin attributes:@{NSFontAttributeName : [UIFont systemFontOfSize:11 weight:UIFontWeightRegular]} context:nil].size.width;[printer appendTitle:@"实付金额 :" value:printModel.totalPrice valueOffset:520 - (titleWidth)];[printer appendNewLine];[printer appendNewLine];[printer appendNewLine];[printer appendNewLine];// 你也可以利用UIWebView加载HTML小票的方式，这样可以在远程修改小票的样式和布局。// 注意点：需要等UIWebView加载完成后，再截取UIWebView的屏幕快照，然后利用添加图片的方法，加进printer// 截取屏幕快照，可以用UIWebView+UIImage中的catogery方法 - (UIImage *)imageForWebViewreturn printer;
}

针对商品名称进行换行逻辑处理，把原数据进行组装

/// 商品名称
- (NSMutableArray *)showProductData:(PrinterModel *)printModel{NSMutableArray *mArray = [[NSMutableArray alloc]initWithCapacity:0];NSInteger  priceLength = 0;NSInteger  unitLength = 0;NSInteger  countLength = 0;for (int i=0; i<printModel.productBeans.count; i++) {ProductBeans *model = printModel.productBeans[i];if (model.productUnit.length>unitLength) {unitLength = model.productUnit.length;}if (model.productPrice.length>priceLength) {priceLength = model.productPrice.length;}if (model.productCount.length>countLength) {countLength = model.productCount.length;}NSString *name = model.productName;if (name.length >= 28) {for (int i=0; i<3; i++) { // 三行时ProductBeans *subModel = [[ProductBeans alloc]init];if (i == 0) {subModel.productName = [name substringWithRange:NSMakeRange(0, 14)];subModel.productCount = model.productCount;subModel.productUnit = model.productUnit;subModel.productPrice = model.productPrice;}else if (i == 1) {subModel.productName = [name substringWithRange:NSMakeRange(14, 14)];subModel.productCount = @"";subModel.productUnit = @"";subModel.productPrice = @"";}else {if (name.length > 42) {subModel.productName = [name substringWithRange:NSMakeRange(28, 14)];}else{subModel.productName = [name substringWithRange:NSMakeRange(28, name.length-28)];}subModel.productCount = @"";subModel.productUnit = @"";subModel.productPrice = @"";}[mArray addObject:subModel];}}else if (name.length >= 14) {for (int i=0; i<2; i++) { // 两行时ProductBeans *subModel = [[ProductBeans alloc]init];if (i == 0) {subModel.productName = [name substringWithRange:NSMakeRange(0, 14)];subModel.productCount = model.productCount;subModel.productUnit = model.productUnit;subModel.productPrice = model.productPrice;}else {if (name.length > 28) {subModel.productName = [name substringWithRange:NSMakeRange(14, 14)];}else{subModel.productName = [name substringWithRange:NSMakeRange(14, name.length-14)];}subModel.productCount = @"";subModel.productUnit = @"";subModel.productPrice = @"";}[mArray addObject:subModel];}}else {[mArray addObject:model];}}printModel.productBeans = mArray;for (int i=0; i<printModel.productBeans.count; i++) {ProductBeans *model = printModel.productBeans[i];NSMutableString *unit = [NSMutableString stringWithString:model.productUnit];if (unit.length < unitLength) {NSInteger length = unitLength - unit.length;for (int i=0; i<length; i++) {[unit insertString:@" " atIndex:0];}model.productUnit = unit;}NSMutableString *price = [NSMutableString stringWithString:model.productPrice];if (price.length < priceLength) {NSInteger length = priceLength - price.length;for (int i=0; i<length; i++) {[price insertString:@" " atIndex:0];}model.productPrice =  price;}NSMutableString *count = [NSMutableString stringWithString:model.productCount];if (count.length < countLength) {NSInteger length = countLength - count.length;for (int i=0; i<length; i++) {[count insertString:@" " atIndex:0];}model.productCount = count;}}return mArray;
}

针对赠送的商品进行数据组装处理

/// 赠送信息
- (NSMutableArray *)showGiftData:(PrinterModel *)printModel{NSMutableArray *arraygift = [[NSMutableArray alloc]initWithCapacity:0];NSInteger  priceLength = 0;NSInteger  unitLength = 0;NSInteger  countLength = 0;for (int i=0; i<printModel.giftBeans.count; i++) {GiftBeans *model = printModel.giftBeans[i];if (model.productUnit.length>unitLength) {unitLength = model.productUnit.length;}if (model.productPrice.length>priceLength) {priceLength = model.productPrice.length;}if (model.productCount.length>countLength) {countLength = model.productCount.length;}NSString *name = model.productName;if (name.length >= 44) {for (int i=0; i<3; i++) { // 三行时GiftBeans *subModel = [[GiftBeans alloc]init];if (i == 0) {subModel.productName = [name substringWithRange:NSMakeRange(0, 22)];subModel.productCount = model.productCount;subModel.productUnit = model.productUnit;subModel.productPrice = model.productPrice;}else if (i == 1) {subModel.productName = [name substringWithRange:NSMakeRange(22, 22)];subModel.productCount = @"";subModel.productUnit = @"";subModel.productPrice = @"";}else {subModel.productName = [name substringWithRange:NSMakeRange(44, name.length-44)];subModel.productCount = @"";subModel.productUnit = @"";subModel.productPrice = @"";}[arraygift addObject:subModel];}}else if (name.length >= 22) {for (int i=0; i<2; i++) { // 两行时GiftBeans *subModel = [[GiftBeans alloc]init];if (i == 0) {subModel.productName = [name substringWithRange:NSMakeRange(0, 22)];subModel.productCount = model.productCount;subModel.productUnit = model.productUnit;subModel.productPrice = model.productPrice;}else {subModel.productName = [name substringWithRange:NSMakeRange(22, name.length-22)];subModel.productCount = @"";subModel.productUnit = @"";subModel.productPrice = @"";}[arraygift addObject:subModel];}}else {[arraygift addObject:model];}}printModel.giftBeans = arraygift;for (int i=0; i<printModel.giftBeans.count; i++) {GiftBeans *model = printModel.giftBeans[i];NSMutableString *unit = [NSMutableString stringWithString:model.productUnit];if (unit.length < unitLength) {NSInteger length = unitLength - unit.length;for (int i=0; i<length; i++) {[unit insertString:@" " atIndex:0];}model.productUnit = unit;}NSMutableString *price = [NSMutableString stringWithString:model.productPrice];if (price.length < priceLength) {NSInteger length = priceLength - price.length;for (int i=0; i<length; i++) {[price insertString:@" " atIndex:0];}model.productPrice =  price;}NSMutableString *count = [NSMutableString stringWithString:model.productCount];if (count.length < countLength) {NSInteger length = countLength - count.length;for (int i=0; i<length; i++) {[count insertString:@" " atIndex:0];}model.productCount = count;}}return arraygift;
}

使用打印功能进行打印

- (void)blueButtonAction{NSDictionary *options = @{CBCentralManagerOptionShowPowerAlertKey:@NO};//不弹窗（配置）self.manager = [[CBCentralManager alloc] initWithDelegate:self queue:nil options:options];
}#pragma mark 蓝牙状态Delegate
- (void)centralManagerDidUpdateState:(CBCentralManager *)central {NSString *strMessage = @"";switch (central.state) {case CBManagerStatePoweredOn: {NSLog(@"蓝牙开启功能可用");[self showPrinterManager];return;}break;case CBManagerStatePoweredOff: {strMessage = @"手机蓝牙功能关闭，请前往设置打开蓝牙及控制中心打开蓝牙";}break;case CBManagerStateUnauthorized:{strMessage = @"访问蓝牙权限以用于设备数据读取和发送";}break;case CBManagerStateUnknown:break;case CBManagerStateResetting:break;case CBManagerStateUnsupported:break;}//通知没有打开蓝牙的自定义提示弹窗（弹窗代码自行实现）[self broadAlertMessage:strMessage];
}/// 设置弹框
/// @param strMessage 内容
- (void)broadAlertMessage:(NSString *)strMessage{UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"提示" message:strMessage preferredStyle:UIAlertControllerStyleAlert];UIAlertAction *cancel = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:^(UIAlertAction * _Nonnull action) {}];UIAlertAction *queren = [UIAlertAction actionWithTitle:@"前往设置"style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {[[UIApplication sharedApplication]openURL:[NSURL URLWithString:UIApplicationOpenSettingsURLString] options:@{}completionHandler:^(BOOL  success) {}];}];[alert addAction:cancel];[alert addAction:queren];[self.navigationController presentViewController:alert animated:YES completion:nil];}///  蓝牙开启功能可用打印
- (void)showPrinterManager{SEPrinterManager *_manager = [SEPrinterManager sharedInstance];if (_manager.isConnected == NO) { // 去连接PrinterViewController *printer = [[PrinterViewController alloc] initWithNibName:@"PrinterViewController" bundle:nil];[self.navigationController pushViewController:printer animated:YES];}else{ // 去打印HLPrinter *printer = [self getPrinter];NSData* imageData = [printer getFinalData];// 对象转成字节流 发送给打印机kWeakify(self);if (imageData.length == 0) {[GHSProgressHUD showMessage:@"数据不能为空"];return;}[_manager sendPrintData:imageData completion:^(CBPeripheral *connectPerpheral, BOOL completion, NSString *error) {NSLog(@"写入结：%d---错误:%@",completion,error);if (completion == YES) {[weakSelf sendPrintInfo];}[GHSProgressHUD showSuccess:error];}];}}

我们样式和这个库要求不一样，我是基于这个库进行打印，然后修改了内部格式和方法，我基于这个库修改了字体的行间距，计算宽度，2行3行4行不同样式时的处理

//行间距
Byte lineSpace[] = {0x1B,0x33,0x50};

/// 小计 三行
- (void)appendSubtotalText:(NSString *)left centerText:(NSString *)center rightText:(NSString *)right isTitle:(BOOL)isTitle
{[self setAlignment:HLTextAlignmentLeft];[self setFontSize:HLFontSizeTitleSmalle];NSInteger offset = 0;if (!isTitle) {offset = 10;}if (left) {[self setText:left];}CGFloat titleWidth = [right boundingRectWithSize:CGSizeMake(CGFLOAT_MAX, 18) options:NSStringDrawingUsesLineFragmentOrigin attributes:@{NSFontAttributeName : [UIFont systemFontOfSize:11 weight:UIFontWeightRegular]} context:nil].size.width;if (right) {[self setOffset:520 - (titleWidth)];[self setText:right];}if (center) {[self setOffset:500 - 235];[self setText:center];}[self appendNewLine];}

/// 三行 赠送商品
- (void)appendLeftText:(NSString *)left middleText:(NSString *)middle rightText:(NSString *)right isTitle:(BOOL)isTitle
{[self setAlignment:HLTextAlignmentLeft];[self setFontSize:HLFontSizeTitleSmalle];NSInteger offset = 0;if (!isTitle) {offset = 10;}if (left) {[self setText:left];}CGFloat titleWidth = [right boundingRectWithSize:CGSizeMake(CGFLOAT_MAX, 18) options:NSStringDrawingUsesLineFragmentOrigin attributes:@{NSFontAttributeName : [UIFont systemFontOfSize:11 weight:UIFontWeightRegular]} context:nil].size.width;if (right) {[self setOffset:520 - (titleWidth)];[self setText:right];}if (middle) {[self setOffset:520 - (titleWidth + 70)];[self setText:middle];}[self appendNewLine];}

/// 四行商品 名称 数量 单位 价格
- (void)appendFourLinesText:(NSString *)left middleText:(NSString *)middle rightText:(NSString *)right moneyText:(NSString *)money isTitle:(BOOL)isTitle{[self setAlignment:HLTextAlignmentLeft];[self setFontSize:HLFontSizeTitleSmalle];NSInteger offset = 0;if (!isTitle) {offset = 10;}if (left) {[self setText:left];}CGFloat rightWidth = [right boundingRectWithSize:CGSizeMake(CGFLOAT_MAX, 18) options:NSStringDrawingUsesLineFragmentOrigin attributes:@{NSFontAttributeName : [UIFont systemFontOfSize:11 weight:UIFontWeightRegular]} context:nil].size.width;if (money) {[self setOffset:500 - (rightWidth + 10)];[self setText:money];}if (right) {[self setOffset:500 - (rightWidth + 10 + 80)];[self setText:right];}if (middle) {[self setOffset:500 - (rightWidth + 10 + 80 + 80)];[self setText:middle];}[self appendNewLine];}

对打印小票感兴趣的可以看看蓝牙打印库https://github.com/Haley-Wong/HLBluetoothDemohttps://github.com/Haley-Wong/HLBluetoothDemo

iOS蓝牙连接打印机，打印小票相关推荐

Android 蓝牙连接打印机打印网络图片
实现蓝牙连接打印机打印网络图片经过自己一下午加一个小时的时间整理出来,希望能帮助到各位码兄弟! 主要分为以下几步: 将网络图片URL转为bitmap :其中需要进行网络请求,不可在主线程中进行,需另 ...
蓝牙连接打印机打印资产标签.
新出一个需求,打印资产标签,扫描标签中二维码的时候,根据二维码内容展示资源详细信息; 二维码打印就不说了,蓝牙连接便携打印机,然后根据打印机厂家的API,排版打印即可,打印机厂家是杭州舜普. 贴一下便 ...
uniapp APP实现通过蓝牙连接打印机打印
蓝牙连接德佟打印机打印 1.导入插件: 在插件市场中搜索LPAPI,进入之后,点击右侧的"购买for云打包",选择目标项目,按照提示操作即可: 2. 配置插件: 用HBuilder ...
JAVA连接打印机打印小票、产品信息。标签打印机
2018年写了一个标签打印机(TSC TX600),标签打印程序,实现功能是通过串口读出设备ID生成二维码和设备信息,用于esp8266 smart config配网.源码和资料:https://do ...
蓝牙连接打印机打印文字图片条形码二维码用的是Gprinter打印机
实现了蓝牙打印,正在进一步完善,欢迎留言交流 :) Github链接
Android手机蓝牙连接热敏打印机打印票据
手机蓝牙连接热敏打印机打印票据话不多说上代码: 项目地址:可直接作为项目依赖引用 allprojects {repositories {...maven { url 'https://jitpa ...
自己的电脑不能连接打印机打印怎么办
近来,自己购买了一台小型的打印机,原本想着打印一些比较简单的东西,可是没有想到使用过程中困难多多,卡纸.打印字迹不清晰等问题一件件接着来,我开始怀疑难道我购买的打印机质量太差劲了吗? 相信不少人在打印 ...
python连接打印机打印文档、图片、pdf文件等
引言 python连接打印机进行打印,可能根据需求的不同,使用不同的函数模块. 如果你只是简单的想打印文档,比如office文档,你可以使用ShellExecute方法,对于微软office的文档.p ...
NWJS（NodeJS）调用打印机 - 打印小票
1 背景架构设计:VueJS + Spring Cloud微服务架构功能要求: 调用小票打印机打印小票,功能和超市收银结算功能相同使用NWJS包装VueJS前端代码实现exe安装包和可执行文件 ...
Secure CRT自动连接打印机打印乱码问题
最近发现了一件怪事,发现自己的电脑会自动连接打印机打印文件. 关键是打印出来的都是乱码,一行行的电波文,看的脑阔疼. 刚开始还不知道是什么原有导致的. 后来一狠心把打印机给删除了. 第二天,过了一段时 ...

iOS蓝牙连接打印机，打印小票

iOS蓝牙连接打印机，打印小票相关推荐

最新文章

热门文章