打印机

components/kk-printer/index.vue

@@ -32,7 +32,7 @@
 						</view>
 						<view class="" v-else>
 							<view class="kk-devices-item" v-for="(item,index) in filterDeviceList" :key="index" @tap="handleConnectDevice(item)">
-								<view class="name">
+								<view class="name" style="color:#000;">
 									<text>设备名称：</text>
 									<text>{{item.name?item.name:'未命名'}}</text>
 								</view>
@@ -128,7 +128,6 @@
 				let filterDevices1 = devices.filter((item)=>{
 					return item.RSSI > rssi
 				})
-				console.log(filterDevices1)
 				// 按名字过滤
 				let filterDevices2
 				if(name!=''){
@@ -190,7 +189,6 @@
 										onceLength:datalen
 									}
 									console.log("开始打印了")
-									console.log(opt)
 									blesdk.sendDataToDevice(opt);
 									this.isPrinting = false;
 									//打印成功跳转页面
@@ -198,46 +196,51 @@
 								
 							})
 							return
-						}
-						//若没有已连接设备，弹框搜索设备
-						console.log(res,this.deviceId,this.serviceId,this.writeId,this.bufferData,this.onPrintSuccess,'res,this.deviceId,this.serviceId,this.writeId,this.bufferData,this.onPrintSuccess’')
-						if(res.devices.length == 0){
-							console.log("没有设备连接")
-							this.iosNo = true
-							this.isShowSearch = true
+						}
+						if(uni.getStorageSync('deviceId') != '' && uni.getStorageSync('serviceId') != ''){
+							console.log('第二次进入')
+							let datalen=20;
+							// #ifdef APP-PLUS
+							if (plus.os.name != 'Android')
+							{         
+							  datalen=180;
+							}
+							// #endif
+							
+							this.isPrinting = true;
+							this.$emit('onPrint');
+							this.$nextTick(()=>{
+								if(this.bufferData!=''){
+									let buffer = gbk.strToGBKByte(this.bufferData)
+									
+									let opt = {
+										deviceId: uni.getStorageSync('deviceId'), 
+										serviceId: uni.getStorageSync('serviceId'), 
+										characteristicId: uni.getStorageSync('writeId'),
+										value:buffer,
+										lasterSuccess: this.onPrintSuccess,
+										onceLength:datalen
+									}
+									console.log("开始打印了")
+									blesdk.sendDataToDevice(opt);
+									this.isPrinting = false;
+									//打印成功跳转页面
+								}
+								
+							})
 						}else{
-							console.log("有设备连接")
-							let datalen=20;
-							// #ifdef APP-PLUS
-							if (plus.os.name != 'Android')
-							{         
-							  datalen=180;
-							}
-							// #endif
-
-							this.isPrinting = true;
-							this.$emit('onPrint');
-							this.$nextTick(()=>{
-								if(this.bufferData!=''){
-									let buffer = gbk.strToGBKByte(this.bufferData)
-									
-									let opt = {
-										deviceId: this.deviceId, 
-										serviceId: this.serviceId, 
-										characteristicId: this.writeId,
-										value:buffer,
-										lasterSuccess: this.onPrintSuccess,
-										onceLength:datalen
-									}
-									console.log("开始打印了")
-									console.log(opt)
-									blesdk.sendDataToDevice(opt);
-									this.isPrinting = false;
-									//打印成功跳转页面
-								}
-								
-							})
-						}
+							console.log('首次进入')
+							console.log("没有设备连接")
+							this.iosNo = true
+							this.isShowSearch = true
+						}
+							
+						// //若没有已连接设备，弹框搜索设备
+						// if(res.devices.length == 0){
+							
+						// }else{
+							
+						// }
 					}).catch((err)=>{
 						blesdk.catchToast(err);
 					})
@@ -271,8 +274,7 @@
 				let deviceId = device.deviceId;
 				let name = device.name;
 				this.deviceId = deviceId;
-				console.log('deviceId',this.deviceId)
-				// uni.setStorageSync('k_curDeviceID',deviceId);
+				uni.setStorageSync('deviceId',deviceId);
 				// uni.setStorageSync('k_curDeviceName',name);plus.bluetooth.onBluetoothDeviceFound
 				uni.onBLEConnectionStateChange(function(res){
 					console.log('连接',res)
@@ -298,7 +300,8 @@
 			},
 			onGetServicesSuccess(res){
 				console.log('获取服务',res)
-				this.services = res.serviceId;
+				this.services = res.serviceId;
+				
 				blesdk.getDeviceCharacteristics(this.deviceId, this.services, this.onGetCharacterSuccess, this.onGetCharacterFail);
 			},
 			onGetServicesFail(err){
@@ -308,7 +311,10 @@
 				console.log('获取特征值成功',res)
 				this.serviceId = res.serviceId;
 				this.writeId = res.writeId;
-				this.readId = res.readId;
+				this.readId = res.readId;
+				uni.setStorageSync('serviceId',res.serviceId)
+				uni.setStorageSync('writeId',res.writeId)
+				uni.setStorageSync('readId',res.readId)
 				this.isShowSearch = false;
 			},
 			onGetCharacterFail(err){
@@ -443,7 +449,8 @@
 								width:100%;
 								border-bottom: 1upx solid #ebebeb;
 								padding:10upx 0;
-								box-sizing: border-box;
+								box-sizing: border-box;
+								z-index: 500;
 								&:nth-last-child(1){
 									border-bottom: none;
 								}

components/kk-printer/utils/bluetoolth.js

@@ -52,7 +52,8 @@ export function onfindBlueDevices(getDevices) {
 	//监听寻找到新设备的事件
 	uni.onBluetoothDeviceFound((devices)=>{
 		//获取在蓝牙模块生效期间所有已发现的蓝牙设备
-		uniAsyncPromise('getBluetoothDevices').then((res) => {
+		uniAsyncPromise('getBluetoothDevices').then((res) => {
+			console.log('res这里',res.devices)
 			getDevices && getDevices(res.devices);
 		});
 	});