ios - 将发现外围设备的UUID存储在CoreBluetooth LE iOS中

Question

我尝试使用下面的代码将发现的设备的UUID存储到Array，然后在该阵列中选择UUID进行连接，但无法运行。

- (void)centralManager:(CBCentralManager *)central didDiscoverPeripheral:(CBPeripheral *)peripheral advertisementData:(NSDictionary *)advertisementData RSSI:(NSNumber *)RSSI {

    NSLog (@"Discovered peripheral: %@", [peripheral name]);
    [foundArray addObject:peripheral.name];

    NSLog (@"UUID peripheral: %@", [peripheral UUID]);

    CFUUIDRef uuid = [peripheral UUID];
    [discoverUUIDArray addObject: (__bridge id)(uuid)];
    NSLog(@"Before = %@", uuid);

    NSLog (@"peripheral services before connected: %@", [peripheral services]);

    NSLog(@"adversting data %@",[NSString stringWithFormat:@"%@",[advertisementData description]]);

    self.activePeripheral = peripheral;

    NSLog(@"foundArray is %@", foundArray);
    NSLog(@"discoverUUIDArray is %@", discoverUUIDArray);
    [self.tblFound reloadData];

}

然后，我将这些Discover设备加载到tableview，当用户选择要连接的设备时，我的应用程序挂起。

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    if(self.manager.state == CBCentralManagerStatePoweredOn)
    {
        NSLog(@"You selected %@ to connect",[foundArray objectAtIndex:indexPath.row]);
        CFUUIDRef uuidGet = (__bridge CFUUIDRef) [discoverUUIDArray objectAtIndex:indexPath.row];
        NSLog(@"UUID is %@",[discoverUUIDArray objectAtIndex:indexPath.row]);
        [self.manager connectPeripheral:[discoverUUIDArray objectAtIndex:indexPath.row] options:nil];

    }
}

选择要连接的设备时，显示错误:

[__NSCFType state]: unrecognized selector sent to instance 0x17d70950
2013-12-25 15:17:40.699 TestPeripheral[213:60b] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFType state]: unrecognized selector sent to instance 0x17d70950'

discoverUUIDArray存储发现设备的UUID。我不知道为什么请给我一些建议。非常感谢。

Answer 1

在iOS7中不推荐使用CFUUIDRef uuid = [peripheral UUID];，
如果需要，可以使用peripheral.identifier作为NSUUID存储在数组中

如果要存储UUID's以便将来检索，请将其保留在NSUserDefaults中，而不是运行时数组中