解决订阅消息有时候会永远pending的问题

utils/BleHelper.js

@@ -473,9 +473,12 @@ class BleHelper {
 											if (str.includes(':')) {
 												v.macAddress = str;
 											} else {
-													v.macAddress=str.replace(/(.{2})/g, '$1:').slice(0, -1)
+												v.macAddress = str.replace(
+														/(.{2})/g, '$1:')
+													.slice(0, -1)
 											}
-											console.log("收到mac地址:", v.macAddress)
+											console.log("收到mac地址:", v
+												.macAddress)
 										}
 									});
 									uni.setStorageSync(this.StorageKey, this.data
@@ -519,10 +522,12 @@ class BleHelper {
 										console.log("有人订阅消息")
 										let path = this.getCurrentPagePath();
 
-										this.cfg.receivDataCallback.forEach((rec) => {
+										this.cfg.receivDataCallback.forEach((
+										rec) => {
 
 											if (rec.callback) {
-												rec.callback(recData, f, path);
+												rec.callback(recData, f,
+													path);
 											}
 										})
 									} else {
@@ -689,7 +694,8 @@ class BleHelper {
 				let startSubScribe = (id, serviceId, characteristicId) => {
 					console.log("serviceId=", serviceId);
 					console.log("characteristicId=", characteristicId);
-					return new Promise((succ, err) => {
+					let p1= new Promise((succ, err) => {
+						
 						uni.notifyBLECharacteristicValueChange({
 							deviceId: id,
 							serviceId: serviceId,
@@ -707,7 +713,8 @@ class BleHelper {
 										v.notifyState = state;
 									}
 								});
-								succ();
+								console.log("success SubScribe");
+								succ(res);//见了鬼了，有时候执行了succ但promise永远pending了
 							},
 							fail: (ex) => {
 
@@ -715,6 +722,22 @@ class BleHelper {
 							}
 						});
 					});
+					
+					let p2=new Promise((succ,err)=>{
+						setTimeout(()=>{
+							err({code:-1});
+						},50);
+					});
+					return new Promise((succ,err)=>{
+						Promise.race([p1,p2]).then(succ).catch(ex=>{
+							if(ex.code==-1){
+								succ();
+								return;
+							}
+							err(ex);
+						})
+					});
+					
 				}
 				let promies = new Array();
 				if (c.Characteristics && c.Characteristics.length) {
@@ -730,8 +753,10 @@ class BleHelper {
 				}
 
 				if (promies.length > 0) {
-					Promise.allSettled(promies).then((results) => {
 
+					console.log("234324324324");
+					Promise.allSettled(promies).then((results) => {
+						console.log("11111");
 						results.forEach((result, index) => {
 							if (result.status === "fulfilled") {
 								console.log(`操作${index + 1}成功:`, result.value);
@@ -743,9 +768,13 @@ class BleHelper {
 
 						resolve();
 					}).catch((ex) => {
+						console.log("222222");
 						reject(ex);
+					}).finally(()=>{
+						console.log("finally")
 					});
 				} else {
+					console.log("33333");
 					resolve();
 				}
 
@@ -971,7 +1000,9 @@ class BleHelper {
 					}
 
 					if (!this.data.available) {
-		        reject(this.getError({ code: 10001 }));
+						reject(this.getError({
+							code: 10001
+						}));
 						return;
 					}
 
@@ -996,8 +1027,10 @@ class BleHelper {
 									this.data.LinkedList.push(cr);
 								}
 
-		            uni.setStorageSync(this.StorageKey, this.data.LinkedList);
-		            console.log("LinkedList=", this.data.LinkedList);
+								uni.setStorageSync(this.StorageKey, this.data
+									.LinkedList);
+								console.log("LinkedList=", this.data
+								.LinkedList);
 
 								// 处理 MTU 设置
 								if (plus.os.name === 'Android') {
@@ -1005,12 +1038,14 @@ class BleHelper {
 										deviceId: deviceId,
 										mtu: 512,
 										success: (mtu) => {
-		                  console.log("mtu设置成功", mtu);
+											console.log("mtu设置成功",
+												mtu);
 											resolve(true);
 										},
 										fail: () => {
 											console.log("mtu设置失败");
-		                  resolve(true); // MTU设置失败不影响连接成功
+											resolve(
+											true); // MTU设置失败不影响连接成功
 										}
 									});
 								} else {
@@ -1085,13 +1120,13 @@ class BleHelper {
 				}
 
 			}).then(() => {
-
+				console.log("then.....");
 
 				setTimeout(() => {
 					resolve();
 				}, 500);
 			}).catch((ex) => {
-				////console.log("出现异常", ex);
+				console.log("出现异常", ex);
 				reject(ex);
 			});
 		});