iOS蓝牙调用的一般流程
一、服务端（也叫周边设备吧。。脑残的翻译）
1.实现类必须遵守协议 CBPeripheralManagerDelegate
2.需要的主要类有：
@property(strong,nonatomic) CBPeripheralManager *peripheraManager;
@property(strong,nonatomic) CBMutableCharacteristic *customerCharacteristic;
@property (strong,nonatomic) CBMutableService *customerService;
3.调用流程代码中有注释
//
// ViewController.m
// BlueToothDemo
//
// Created by PSH_Chen_Tao on 7/3/13.
// Copyright (c) 2013 wolfman. All rights reserved.
//
#import "ViewController.h"
static NSString *const kCharacteristicUUID = @"CCE62C0F-1098-4CD0-ADFA-C8FC7EA2EE90";
static NSString *const kServiceUUID = @"50BD367B-6B17-4E81-B6E9-F62016F26E7B";
@interface ViewController ()
@end
@implementation ViewController
@synthesize peripheraManager;
@synthesize customerCharacteristic;
@synthesize customerService;
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
//初始化后会直接调用代理的 - (void)peripheralManagerDidUpdateState:(CBPeripheralManager *)peripheral
peripheraManager = [[CBPeripheralManager alloc]initWithDelegate:self queue:nil];
// [peripheraManager startAdvertising:nil];
}
-(void)setUp{
CBUUID *characteristicUUID = [CBUUID UUIDWithString:kCharacteristicUUID];
customerCharacteristic = [[CBMutableCharacteristic alloc]initWithType:characteristicUUID properties:CBCharacteristicPropertyNotify value:nil permissions:CBAttributePermissionsReadable];
CBUUID *serviceUUID = [CBUUID UUIDWithString:kServiceUUID];
customerService = [[CBMutableService alloc]initWithType:serviceUUID primary:YES];
[customerService setCharacteristics:@[characteristicUUID]];
//添加后就会调用代理的- (void)peripheralManager:(CBPeripheralManager *)peripheral didAddService:(CBService *)service error:(NSError *)error
[peripheraManager addService:customerService];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#pragma mark -- CBPeripheralManagerDelegate
- (void)peripheralManagerDidUpdateState:(CBPeripheralManager *)peripheral{
switch (peripheral.state) {
//在这里判断蓝牙设别的状态 当开启了则可调用 setUp方法(自定义)
case CBPeripheralManagerStatePoweredOn:
NSLog(@"powered on");
[self setUp];
break;
case CBPeripheralManagerStatePoweredOff:
NSLog(@"powered off");
break;
default:
break;
}
}
- (void)peripheralManager:(CBPeripheralManager *)peripheral didAddService:(CBService *)service error:(NSError *)error{
if (error == nil) {
//添加服务后可以在此向外界发出通告 调用完这个方法后会调用代理的
//(void)peripheralManagerDidStartAdvertising:(CBPeripheralManager *)peripheral error:(NSError *)error
[peripheraManager startAdvertising:@{CBAdvertisementDataLocalNameKey : @"Service",CBAdvertisementDataServiceUUIDsKey : [CBUUID UUIDWithString:kServiceUUID]}];
}
}
- (void)peripheralManagerDidStartAdvertising:(CBPeripheralManager *)peripheral error:(NSError *)error{
NSLog(@"in peripheralManagerDidStartAdvertisiong:error");
}
@end
二、客户端（也叫中心设备吧）
1.实现类要遵守协议<CBCentralManagerDelegate,CBPeripheralDelegate>
2.主要用到的类有
@property(strong,nonatomic)CBCentralManager *centralManager;
@property(strong,nonatomic)NSMutableData *mutableData;
@property(strong,nonatomic)CBPeripheral *peripheral;
3.一般的流程
1 // 2 // ViewController.m 3 // BlueToothClient 4 // 5 // Created by PSH_Chen_Tao on 7/3/13. 6 // Copyright (c) 2013 wolfman. All rights reserved. 7 // 8 9 #import "ViewController.h" 10 static NSString *const kCharacteristicUUID = @"CCE62C0F-1098-4CD0-ADFA-C8FC7EA2EE90"; 11 12 static NSString *const kServiceUUID = @"50BD367B-6B17-4E81-B6E9-F62016F26E7B"; 13 @interface ViewController () 14 15 @end 16 17 @implementation ViewController 18 19 @synthesize centralManager; 20 @synthesize mutableData; 21 @synthesize peripheral; 22 23 - (void)viewDidLoad 24 { 25 [super viewDidLoad]; 26 // Do any additional setup after loading the view, typically from a nib. 27 //初始化后会调用代理CBCentralManagerDelegate 的 - (void)centralManagerDidUpdateState:(CBCentralManager *)central 28 centralManager = [[CBCentralManager alloc]initWithDelegate:self queue:nil]; 29 30 } 31 32 - (void)didReceiveMemoryWarning 33 { 34 [super didReceiveMemoryWarning]; 35 // Dispose of any resources that can be recreated. 36 } 37 38 #pragma mark -- CBCentralManagerDelegate 39 - (void)centralManagerDidUpdateState:(CBCentralManager *)central{ 40 switch (central.state) { 41 //判断状态开始扫瞄周围设备 第一个参数为空则会扫瞄所有的可连接设备 你可以 42 //指定一个CBUUID对象 从而只扫瞄注册用指定服务的设备 43 //scanForPeripheralsWithServices方法调用完后会调用代理CBCentralManagerDelegate的 44 //- (void)centralManager:(CBCentralManager *)central didDiscoverPeripheral:(CBPeripheral *)peripheral advertisementData:(NSDictionary *)advertisementData RSSI:(NSNumber *)RSSI方法 45 case CBCentralManagerStatePoweredOn: 46 [centralManager scanForPeripheralsWithServices:@[[CBUUID UUIDWithString:kServiceUUID]] options:@{CBCentralManagerScanOptionAllowDuplicatesKey : YES}]; 47 48 49 break; 50 51 default: 52 break; 53 } 54 } 55 56 - (void)centralManager:(CBCentralManager *)central didDiscoverPeripheral:(CBPeripheral *)peripheral advertisementData:(NSDictionary *)advertisementData RSSI:(NSNumber *)RSSI{ 57 if (peripheral) { 58 self.peripheral = peripheral; 59 //发现设备后即可连接该设备 调用完该方法后会调用代理CBCentralManagerDelegate的- (void)centralManager:(CBCentralManager *)central didConnectPeripheral:(CBPeripheral *)peripheral表示连接上了设别 60 //如果不能连接会调用 - (void)centralManager:(CBCentralManager *)central didFailToConnectPeripheral:(CBPeripheral *)peripheral error:(NSError *)error 61 [centralManager connectPeripheral:peripheral options:@{CBConnectPeripheralOptionNotifyOnConnectionKey : YES}]; 62 } 63 } 64 65 - (void)centralManager:(CBCentralManager *)central didConnectPeripheral:(CBPeripheral *)peripheral{ 66 NSLog(@"has connected"); 67 [mutableData setLength:0]; 68 self.peripheral.delegate = self; 69 //此时设备已经连接上了 你要做的就是找到该设备上的指定服务 调用完该方法后会调用代理CBPeripheralDelegate（现在开始调用另一个代理的方法了）的 70 //- (void)peripheral:(CBPeripheral *)peripheral didDiscoverServices:(NSError *)error 71 [self.peripheral discoverServices:@[[CBUUID UUIDWithString:kServiceUUID]]]; 72 73 } 74 75 76 - (void)centralManager:(CBCentralManager *)central didFailToConnectPeripheral:(CBPeripheral *)peripheral error:(NSError *)error{ 77 //此时连接发生错误 78 NSLog(@"connected periphheral failed"); 79 } 80 81 82 #pragma mark -- CBPeripheralDelegate 83 - (void)peripheral:(CBPeripheral *)peripheral didDiscoverServices:(NSError *)error{ 84 if (error==nil) { 85 //在这个方法中我们要查找到我们需要的服务 然后调用discoverCharacteristics方法查找我们需要的特性 86 //该discoverCharacteristics方法调用完后会调用代理CBPeripheralDelegate的 87 //- (void)peripheral:(CBPeripheral *)peripheral didDiscoverCharacteristicsForService:(CBService *)service error:(NSError *)error 88 for (CBService *service in peripheral.services) { 89 if ([service.UUID isEqual:[CBUUID UUIDWithString:kServiceUUID]]) { 90 [peripheral discoverCharacteristics:@[[CBUUID UUIDWithString:kCharacteristicUUID]] forService:service]; 91 } 92 } 93 } 94 } 95 96 - (void)peripheral:(CBPeripheral *)peripheral didDiscoverCharacteristicsForService:(CBService *)service error:(NSError *)error{ 97 if (error==nil) { 98 //在这个方法中我们要找到我们所需的服务的特性 然后调用setNotifyValue方法告知我们要监测这个服务特性的状态变化 99 //当setNotifyValue方法调用后调用代理CBPeripheralDelegate的- (void)peripheral:(CBPeripheral *)peripheral didUpdateNotificationStateForCharacteristic:(CBCharacteristic *)characteristic error:(NSError *)error 100 for (CBCharacteristic *characteristic in service.characteristics) { 101 if ([characteristic.UUID isEqual:[CBUUID UUIDWithString:kCharacteristicUUID]]) { 102 103 [peripheral setNotifyValue:YES forCharacteristic:characteristic]; 104 } 105 } 106 } 107 } 108 109 - (void)peripheral:(CBPeripheral *)peripheral didUpdateNotificationStateForCharacteristic:(CBCharacteristic *)characteristic error:(NSError *)error{ 110 if (error==nil) { 111 //调用下面的方法后 会调用到代理的- (void)peripheral:(CBPeripheral *)peripheral didUpdateValueForCharacteristic:(CBCharacteristic *)characteristic error:(NSError *)error 112 [peripheral readValueForCharacteristic:characteristic]; 113 } 114 } 115 116 117 - (void)peripheral:(CBPeripheral *)peripheral didUpdateValueForCharacteristic:(CBCharacteristic *)characteristic error:(NSError *)error{ 118 119 } 120 121 @end
