uni.createBLEConnection的一直没有回调响应

createBLEConnection() {  
        //设备deviceId  
        let deviceId = this.deviceId;  
        let self = this;  

        uni.showLoading({  
            mask: true,  
            title: '设别连接中,请稍候...'  
        })  
        console.log(this.deviceId);  
        return new Promise((resolve, reject) => {  
            uni.createBLEConnection({  
                deviceId,  

                success: (res) => {  
                    console.log("res:createBLEConnection " + JSON.stringify(res));  
                    uni.hideLoading();  
                    resolve(res)  
                },  
                fail: err => {  
                    uni.hideLoading();  
                    self.showToast(`停止搜索蓝牙设备失败` + JSON.stringify(err));  
                    reject(err);  
                },  
                complete: () => {  
                     console.log(11111)  
                    uni.onBLEConnectionStateChange(function (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(`device ${res.deviceId} state has changed, connected: ${res.connected}`)  
                    })  

                    uni.hideLoading();  
                }  

            })  
        });  
    }

一直没有回调 也没报错