小编kon*_*nda的帖子

我们需要从蓝牙设备获取数据到 IOS 设备core_bluetooth.frameworks。我们正在使用. didDisconnectPeripheral 每次都在 didConnectPeripheral 之后调用。我们得到的错误是错误是Error Domain=CBErrorDomain Code=7 "The specified device has disconnected from us." UserInfo={NSLocalizedDescription=The specified device has disconnected from us.}

我们试过的代码是：//in ViewDidLoad

NSDictionary *options = [NSDictionary dictionaryWithObjectsAndKeys:[NSNumber numberWithBool:NO], CBCentralManagerOptionShowPowerAlertKey, nil];
     self.central=[[CBCentralManager alloc] initWithDelegate:self queue:nil options:options];
     //self.central=[[CBCentralManager alloc] initWithDelegate:self queue:dispatch_get_global_queue(QOS_CLASS_BACKGROUND, 0)];
     self.discoveredPeripherals=[NSMutableArray new];

//蓝牙开/关

-(void) centralManagerDidUpdateState:(CBCentralManager *)central {
NSString *stateString = nil;
    switch(central.state)
    {
        case CBCentralManagerStateResetting:
            stateString = @"The connection with the system service was momentarily lost, update imminent.";
            break;
        case CBCentralManagerStateUnsupported:
            stateString = @"The …