1.添加 CoreBluetooth.framework框架

2.程序中.m文件引入

#import

3.實現協議

CBPeripheralManagerDelegate,

4.添加屬性：

@property (nonatomic, strong) CBPeripheralManager *manager;

5.添加以下代碼到viewDidLoad方法中

 

self.manager=[[CBPeripheralManager alloc]initWithDelegate:self queue:nil];

6.實現代理方法：

- (void)peripheralManagerDidUpdateState:(CBPeripheralManager *)peripheral{

switch (peripheral.state) {

case CBPeripheralManagerStatePoweredOn:

{

NSLog(@藍牙開啟且可用);

}

break;

default:

NSLog(@藍牙不可用);

break;

}

}