11

components/kk-printer/index.vue

@@ -86,7 +86,8 @@
 				writeId: '',
 				readId: '',
 				iosNo: false,
-				deviceType: 'ios'
+				deviceType: 'ios',
+				connected:''
 			}
 		},
 		props: {
@@ -179,10 +180,38 @@
 						that.sousuo()
 					},
 					fail: (res) => {
-						that.tui.toast('初始化失败', res)
+						console.log('openBluetoothAdapter fail', res)
+						if (res.errCode === 10001) {
+							wx.showModal({
+								title: '错误',
+								content: '未找到蓝牙设备, 请打开蓝牙后重试。',
+								showCancel: false
+							})
+							wx.onBluetoothAdapterStateChange((res) => {
+								console.log('onBluetoothAdapterStateChange', res)
+								if (res.available) {
+									// 取消监听，否则stopBluetoothDevicesDiscovery后仍会继续触发onBluetoothAdapterStateChange，
+									// 导致再次调用startBluetoothDevicesDiscovery
+									wx.onBluetoothAdapterStateChange(() => {});
+									this.sousuo()
+								}
+							})
+						}
 					}
 				})
-
+				wx.onBLEConnectionStateChange((res) => {
+					// 该方法回调中可以用于处理连接意外断开等异常情况
+					console.log('onBLEConnectionStateChange',
+						`device ${res.deviceId} state has changed, connected: ${res.connected}`)
+					this.connected= res.connected
+					if (!res.connected) {
+						wx.showModal({
+							title: '错误',
+							content: '蓝牙连接已断开',
+							showCancel: false
+						})
+					}
+				});
 			},
 			// 开始搜索附近的蓝牙外围设备
 			sousuo() {
@@ -342,99 +371,6 @@
 						console.log('writeBLECharacteristicValue fail', res)
 					}
 				})
-			},
-
-
-
-			onGetDevice(res) {
-				this.devicesList = res;
-			},
-			handleSearchClose() {
-				this.isShowSearch = false
-			},
-			handleSRRIChange(e) {
-				this.filterRSSI = e.detail.value
-			},
-			//开始搜索设备
-			searchBtnTap() {
-				blesdk.startBluetoothDevicesDiscovery();
-				this.isSearching = true;
-				blesdk.onfindBlueDevices(this.onGetDevice)
-			},
-			//停止搜索设备
-			stopSearchBtnTap() {
-				blesdk.stopBlueDevicesDiscovery();
-				this.isSearching = false;
-			},
-			//点击连接设备
-			handleConnectDevice(device) {
-
-				let deviceId = device.deviceId;
-				let name = device.name;
-				this.deviceId = deviceId;
-				uni.setStorageSync('deviceId', deviceId);
-				uni.onBLEConnectionStateChange(function(res) {
-					if (res.connected) {
-
-						// plus.nativeUI.toast('设备'+ res.deviceId + '已连接',{
-						// 	verticalAlign:'center'
-						// })
-					} else {
-						// plus.nativeUI.toast('设备'+ res.deviceId + '已断开连接',{
-						// 	verticalAlign:'center'
-						// })
-					}
-				})
-				blesdk.createBLEConnection(deviceId, this.onConnectSuccess, this.onConnectFail);
-				this.devicesList == []
-			},
-			onConnectSuccess(res) {
-				this.stopSearchBtnTap()
-				uni.setStorageSync('ok', true)
-				blesdk.getBLEDeviceServices(this.deviceId, this.onGetServicesSuccess, this.onGetServicesFail);
-			},
-			onConnectFail(err) {
-				blesdk.closeBLEConnection(uni.getStorageSync('deviceId'));
-				this.isShowSearch = true
-				uni.removeStorageSync('deviceId')
-				uni.removeStorageSync('serviceId')
-				uni.removeStorageSync('writeId')
-				uni.removeStorageSync('readId')
-				// uni.
-			},
-			onGetServicesSuccess(res) {
-				this.services = res.serviceId;
-
-				blesdk.getDeviceCharacteristics(uni.getStorageSync('deviceId') ? uni.getStorageSync('deviceId') : this
-					.deviceId, uni.getStorageSync('services') ? uni.getStorageSync('services') : this.services, this
-					.onGetCharacterSuccess, this.onGetCharacterFail);
-			},
-			onGetServicesFail(err) {},
-			onGetCharacterSuccess(res) {
-				this.serviceId = res.serviceId;
-				this.writeId = res.writeId;
-				this.readId = res.readId;
-				uni.setStorageSync('serviceId', res.serviceId)
-				uni.setStorageSync('writeId', res.writeId)
-				uni.setStorageSync('readId', res.readId)
-				this.isShowSearch = false;
-				this.handlePrintTap()
-			},
-			onGetCharacterFail(err) {
-
-			},
-			onPrintSuccess() {
-				console.log("打印完成22222")
-				this.isPrinting = false;
-				this.$u.route('/pages/toll/toll', {
-					roomcode: this.roomcode,
-					CustName: this.CustName,
-					id: this.roomid
-				})
-				this.$emit('onPrintSuccess')
-			},
-			onPrintFail() {
-				this.isPrinting = false;
 			}
 		}
 	}