蓝牙- CoreBluetooth
/**
* CoreBluetooth ---- BLE
*
* @ 蓝牙4.0 + iBeacon --- 室内导航(超市)
*/
#import "ViewController.h"
#import <CoreBluetooth/CoreBluetooth.h>
@interface ViewController ()<CBCentralManagerDelegate, CBPeripheralDelegate>
/** 中心管理者 ***/
@property (nonatomic, strong) CBCentralManager *mgr;
/** 保存外围设备 ***/
@property (nonatomic, strong) NSMutableArray *peripherals;
@end
@implementation ViewController
- (NSMutableArray *)peripherals{
if (!_peripherals) {
_peripherals = [[NSMutableArray alloc] init];
}
return _peripherals;
}
- (void)viewDidLoad {
[super viewDidLoad];
// 1. 创建中心设备
self.mgr = [[CBCentralManager alloc] init];
// 设置代理
self.mgr.delegate = self;
// 2. 扫描外围设备
/**
* 如果制定数组 代表只扫描指定的设备
*/
[self.mgr scanForPeripheralsWithServices:nil options:nil];
}
#pragma mark - 3. CBCentralManagerDelegate
- (void)centralManager:(CBCentralManager *)central didDiscoverPeripheral:(CBPeripheral *)peripheral advertisementData:(NSDictionary *)advertisementData RSSI:(NSNumber *)RSSI
{
// 保存扫描到的外部设备
// 如果数组中不包含扫描到的设备, 添加设备到数组中
if (![self.peripherals containsObject:peripheral]) {
// 设置外设代理
peripheral.delegate = self;
[self.peripherals addObject:peripheral];
}
}
/**
* 模拟点击, 然后连接所有外围设备
*/
- (void)start
{
for (CBPeripheral *peripheral in self.peripherals) {
// 连接到外围设备
[self.mgr connectPeripheral:peripheral options:nil];
}
}
/**
* 4. 连接外设成功
*/
- (void)centralManager:(CBCentralManager *)central didConnectPeripheral:(CBPeripheral *)peripheral
{
// 扫描外设中的服务(service) nil --- 扫描所有服务
[peripheral discoverServices:nil];
}
/**
* 连接外设失败
*/
- (void)centralManager:(CBCentralManager *)central didDisconnectPeripheral:(CBPeripheral *)peripheral error:(NSError *)error
{
LogGreen(@"连接外设失败");
}
- (void)centralManagerDidUpdateState:(CBCentralManager *)central
{
}
#pragma mark - CBPeripheralDelegate
/**
* 只要扫描到外设的服务就会调用
*
* @param peripheral 服务所属的外设
* @param error 错误
*/
- (void)peripheral:(CBPeripheral *)peripheral didDiscoverServices:(NSError *)error
{
// 获取外设中所有扫描的服务
NSArray *services = peripheral.services;
for (CBService *service in services) {
// 过滤不需要的服务 --- 拿到需要的服务
if([service.UUID.UUIDString isEqualToString:@""]){
// 从需要的服务中查找需要的特征
// 从peripheral中得到的service中, 扫描需要的特征
[peripheral discoverCharacteristics:nil forService:service];
}
}
}
/**
* 只要扫描到特征就会调用
*
* @param peripheral 特征所属的外设
* @param service 特征所属的服务
*/
- (void)peripheral:(CBPeripheral *)peripheral didDiscoverCharacteristicsForService:(CBService *)service error:(NSError *)error
{
// 拿到服务中 所有的特征
NSArray *characters = service.characteristics;
// 遍历特征, 拿到需要的特征处理
for (CBCharacteristic *character in characters) {
if ([character.UUID.UUIDString isEqualToString:@"wakeup"]) {
LogRed(@"设置闹钟");
// 停止
// [self.mgr stopScan];
}
}
}
