蓝牙(2) Core Bluetooth
Core Bluetooth使用步骤
1.建立中心设备
2.扫描外设
3.链接外设
4.扫描外设中的服务和特征
5.利用特征与外设做数据交互
6.断开连接
1.导入框架#import <CoreBluetooth/CoreBluetooth.h>
2.创建中心设备
2-1.创建对象CBCentralManager *manger = [[CBCentralManager alloc]init];
[manger scanForPeripheralsWithServices:nil options:nil];
2-2.实现代理manger.delegate = self;
2-3.创建一个数组
2-4实现代理方法
3.连接所有的外设
-(void)start{
for (CBPeripheral *peripheral in _dataArray) {
//连接外设
[manger connectPeripheral:peripheral options:nil];
}
}
4.实现代理
-(void)centralManager:(CBCentralManager *)central didConnectPeripheral:(CBPeripheral *)peripheral{
扫描外设中的服务
[ peripheral discoverServices:nil];
}
连接外部设备
-(void)centralManager:(CBCentralManager *)central didDisconnectPeripheral:(CBPeripheral *)peripheral error:(NSError *)error{
}
-(void)peripheral:(CBPeripheral *)peripheral didDiscoverServices:(NSError *)error{
扫描到服务就会调用
服务所在的外设,获取外设中所有扫描的服务
NSArray *service = peripheral.services;
for (CBService *ser in service) {
过滤不需要的服务,拿到需要的服务，从需要的服务中查找需要的特征
if ([ser.UUID.UUIDString isEqualToString:@""]) {
从外设中扫描
[peripheral discoverCharacteristics:nil forService:ser];
}
}
}
-(void)peripheral:(CBPeripheral *)peripheral didDiscoverCharacteristicsForService:(CBService *)service error:(NSError *)error{
拿到服务中所有的特征,拿到需要的特征处理
NSArray *characteristics = service.characteristics;
for (CBCharacteristic *character in characteristics ) {
if ([character.UUID.UUIDString isEqualToString:@""]) {
NSLog(@"设置");
}
}
}