CoreBluetooth使用 （客户端外部设备）

自己写了一个Demo    下载地址：http://download.csdn.net/detail/i_k_o_x_s/9031359

CBPeripheralManager类

//初始化的时候 调用代理方法   返回当前设备的蓝牙状态

-(void)peripheralManagerDidUpdateState:(CBPeripheralManager *)peripheral  

当peripheral.state 为 CBPeripheralManagerStatePoweredOn 时候蓝牙设备是打开的

//给当前设备添加服务

- (void)addService:(CBMutableService *)service;

//添加服务后执行代理方法

-(void)peripheralManager:(CBPeripheralManager *)peripheral didAddService:(CBService *)service error:(NSError *)error

//开启广播  让外部蓝牙设备能够搜索到本机设备   

  关闭广播

advertisementData：添加广告发出去的信息

- (void)startAdvertising:(NSDictionary *)advertisementData;

- (void)stopAdvertising;

//开广播后执行代理方法

-(void)peripheralManagerDidStartAdvertising:(CBPeripheralManager *)peripheral error:(NSError *)error

//外部设备连接到当前设备 回调代理方法

central与当前设备连接的外部设备    characteristic外部设备所订阅的特征

-(void)peripheralManager:(CBPeripheralManager *)peripheral central:(CBCentral *)central didSubscribeToCharacteristic:(CBCharacteristic *)characteristic{

//外部设备与当前设备断开连接  回调代理方法

central与当前设备连接的外部设备   characteristic外部设备所订阅的特征

-(void)peripheralManager:(CBPeripheralManager *)peripheral central:(CBCentral *)central didUnsubscribeFromCharacteristic:(CBCharacteristic *)characteristic{

//更新某一个特征，其他外部设备订阅了这个特征 会收到对应value数据 

- (BOOL)updateValue:(NSData *)value forCharacteristic:(CBMutableCharacteristic *)characteristic onSubscribedCentrals:(NSArray *)centrals;

// 外部设备的CBPeripheral的代理方法 回调

               -(void)peripheral:(CBPeripheral *)peripheral didUpdateValueForCharacteristic:(CBCharacteristic *)characteristic error:(NSError *)error

//接受到外部设备发送来的消息 回调代理方法

request 返回多个CBATTRequest 这个类

-(void)peripheralManager:(CBPeripheralManager *)peripheral didReceiveWriteRequests:(NSArray *)requests{

CBATTRequest类

@property(readonly, retain, nonatomic) CBCentral *central;  //发送过来的中心设备

@property(readonly, retain, nonatomic) CBCharacteristic *characteristic;//特征

@property(readonly, nonatomic) NSUInteger offset;

@property(readwrite, copy) NSData *value;//数据

CBMutableService类

//设定特定的CBUUID

- (instancetype)initWithType:(CBUUID *)UUID primary:(BOOL)isPrimary

//一个服务可以添加多个特征

@property(retain,readwrite)NSArray *characteristics;

CBMutableCharacteristic类

//初始化特征的时候 特定特征的UUID  对应的性能：

（根据具体需求）CBCharacteristicPropertyNotify和CBCharacteristicPropertyWrite   //通知：可写

- (instancetype)initWithType:(CBUUID *)UUID properties:(CBCharacteristicProperties)properties value:(NSData *)value permissions:(CBAttributePermissions)permissions