iOS蓝牙没有发现设备

时间:2014-04-04 00:20:14

标签: ios bluetooth

我正在测试应用程序以显示附近的蓝牙设备。现在,代码很简单如下:

- (IBAction)scanForDevices:(id)sender
{
    UIButton * btn = sender;
    if(self.cManager.state != CBCentralManagerStatePoweredOn)
    {
        NSLog(@"CoreBluetooth is %s",[self centralManagerStateToString:self.cManager.state]);
    }

    if(!self.isSearching){
        NSDictionary *options = [NSDictionary dictionaryWithObjectsAndKeys:[NSNumber numberWithBool:NO], CBCentralManagerScanOptionAllowDuplicatesKey, nil];
        [self.cManager scanForPeripheralsWithServices:nil options:options];
        btn.titleLabel.text = @"Stop";
        self.isSearching = YES;
    }
    else
    {
        btn.titleLabel.text = @"Search";
        self.isSearching = NO;
    }
}

#pragma mark - CBCentral Delegate
- (void)centralManagerDidUpdateState:(CBCentralManager *)central
{
    NSLog(@"Ready to discovery..");
}

- (void)centralManager:(CBCentralManager *)central didDiscoverPeripheral:(CBPeripheral *)peripheral advertisementData:(NSDictionary *)advertisementData RSSI:(NSNumber *)RSSI
{
    NSLog(@"Receive periferal: %@", peripheral);
}

但每次按下按钮执行scanForDevices时,都会调用回调函数,但外围设备的值为null。我不确定我的设备是否正常工作。在我的笔记本电脑上,我的iphone 4S(6.0.1)和ipad(7.1)都被发现了,但不是来自iphone和ipad。

1 个答案:

答案 0 :(得分:0)

您是否尝试过重置设备上的网络设置?这修复了我曾经遇到的一些与随机核心蓝牙相关的问题。