蓝牙API
#import <UIKit/UIKit.h>
@interface ViewController : UIViewController
@end
#import "ViewController.h"
#import <CoreBluetooth/CoreBluetooth.h>
@interface ViewController ()<CBCentralManagerDelegate,CBPeripheralDelegate>
@property BOOL cbReady;
@property (nonatomic,assign) float batteryValue;
@property (nonatomic,strong) CBCentralManager *manager;//
@property (nonatomic,strong) CBPeripheral *peripheral;//
@property (nonatomic,strong) CBCharacteristic *writeCharacteristic;
@property (nonatomic,strong) NSMutableArray *nDevices;
@property (nonatomic,strong) NSMutableArray *nServices;
@property (nonatomic,strong) NSMutableArray *nCharacteristics;
@property (nonatomic,strong)UIActivityIndicatorView *activity;//转菊花
@property (nonatomic,strong)UILabel *peripheralName;
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
self.manager = [[CBCentralManager alloc]initWithDelegate:self queue:nil];
_cbReady = false;
[self.view addSubview:self.peripheralName];
_nDevices = [[NSMutableArray alloc]init];
_nServices = [[NSMutableArray alloc]init];
_nCharacteristics = [[NSMutableArray alloc]init];
_activity = [[UIActivityIndicatorView alloc]initWithFrame:CGRectMake(100, 50, 50, 50)];
_activity.backgroundColor = [UIColor orangeColor];
[self.view addSubview:_activity];
}
#pragma mark UI
-(UILabel*)peripheralName{
if (!_peripheralName){
_peripheralName = [[UILabel alloc]init];
_peripheralName.frame = CGRectMake(100, 150, 200, 100);
_peripheralName.backgroundColor = [UIColor orangeColor];
_peripheralName.text = @"显示链接设备名";
}
return _peripheralName;
}
#pragma mark print log
-(void)updatelog:(NSString *)str
{
NSLog(@"%@",str);
}
#pragma mark bluetooth delegate
-(void)centralManagerDidUpdateState:(CBCentralManager *)central{
switch (central.state) {
case CBCentralManagerStatePoweredOn:
[self updatelog:@"蓝牙已打开，请扫描外设"];
[_activity startAnimating];
[_manager scanForPeripheralsWithServices:nil options:nil];//
break;
case CBCentralManagerStatePoweredOff:
[self updatelog:@"蓝牙没有打开，请先打开蓝牙"];
break;
default:
break;
}
}
-(void)centralManager:(CBCentralManager *)central didDiscoverPeripheral:(CBPeripheral *)peripheral advertisementData:(NSDictionary<NSString *,id> *)advertisementData RSSI:(NSNumber *)RSSI{
[self updatelog:[NSString stringWithFormat:@"已发现设备 %@ peripheral:\n 设备名称%@ rssi:%@ ",peripheral,peripheral.name,RSSI]];
_peripheral = peripheral;
//链接外设
[_manager connectPeripheral:_peripheral options:nil];
_peripheralName.text = _peripheral.name;
BOOL replace = NO;
for (int i = 0; i<_nDevices.count; i++) {
CBPeripheral *p = [_nDevices objectAtIndex:i];
if ([p isEqual:peripheral]){
[_nDevices replaceObjectAtIndex:i withObject:peripheral];
replace = YES;
}
}
if (!replace){
[_nDevices addObject:peripheral];
_peripheralName.text = _peripheral.name;
}
if ([_peripheral.name isEqualToString:@"B-ME31-354221"]){
[self.manager stopScan];
[_activity stopAnimating];
}
}
//success 链接外设成功，开始发现服务
-(void)centralManager:(CBCentralManager *)central didConnectPeripheral:(CBPeripheral *)peripheral{
[self.peripheral setDelegate:self];
[self.peripheral discoverServices:nil];
}
//fail
-(void)centralManager:(CBCentralManager *)central didFailToConnectPeripheral:(CBPeripheral *)peripheral error:(NSError *)error{
NSLog(@"%@",error);
}
//deprecated
//-(void)peripheralDidUpdateRSSI:(CBPeripheral *)peripheral error:(NSError *)error{
//
//}
//
-(void)peripheral:(CBPeripheral *)peripheral didDiscoverServices:(NSError *)error{
[self updatelog:@"发现服务"];
int i = 0;
for (CBService * s in peripheral.services){
[self.nServices addObject:s];
}
//49535343-FE7D-4AE5-8FA9-9FAFD205E455
for (CBService *s in peripheral.services){
i++;
[peripheral discoverCharacteristics:nil forService:s];
if ([s.UUID isEqual:[CBUUID UUIDWithString:@"49535343-FE7D-4AE5-8FA9-9FAFD205E455"]]){
BOOL replace = NO;
for (int i=0;i<_nDevices.count;i++){
CBPeripheral *p = [_nDevices objectAtIndex:i];
if ([p isEqual:peripheral]){
[_nDevices replaceObjectAtIndex:i withObject:peripheral];
replace = YES;
}
}
if (!replace){
[_nDevices addObject:peripheral];
_peripheralName.text = peripheral.name;
}
}
}
}
//已搜索到的Characteristics
-(void)peripheral:(CBPeripheral *)peripheral didDiscoverCharacteristicsForService:(CBService *)service error:(NSError *)error{
[self updatelog:@"发现特征服务"];
for (CBCharacteristic *c in service.characteristics){
[self updatelog:[NSString stringWithFormat:@"UUID:%@ UUIDString:%@，data%@",c.UUID,c.UUID.UUIDString,c.UUID.data]];
if ([c.UUID isEqual:[CBUUID UUIDWithString:@"2A23"]]) {
_writeCharacteristic = c;
}
if ([c.UUID isEqual:[CBUUID UUIDWithString:@"2A29"]]) {
[_peripheral readValueForCharacteristic:c];
[_peripheral setNotifyValue:YES forCharacteristic:c];
}
if ([c.UUID isEqual:[CBUUID UUIDWithString:@"2A24"]]) {
[_peripheral readValueForCharacteristic:c];
}
if ([c.UUID isEqual:[CBUUID UUIDWithString:@"2A25"]]) {
[_peripheral readValueForCharacteristic:c];
[_peripheral setNotifyValue:YES forCharacteristic:c];
}
if ([c.UUID isEqual:[CBUUID UUIDWithString:@"2A2A"]]) {
[_peripheral readRSSI];
}
[_nCharacteristics addObject:c];
//log
// 2016-06-17 14:24:30.722 BlueToothDemo[27905:17730659] UUID:System ID UUIDString:2A23，data<2a23>
// 2016-06-17 14:24:30.723 BlueToothDemo[27905:17730659] UUID:Manufacturer Name String UUIDString:2A29，data<2a29>
// 2016-06-17 14:24:30.723 BlueToothDemo[27905:17730659] UUID:Model Number String UUIDString:2A24，data<2a24>
// 2016-06-17 14:24:30.723 BlueToothDemo[27905:17730659] UUID:Serial Number String UUIDString:2A25，data<2a25>
// 2016-06-17 14:24:30.723 BlueToothDemo[27905:17730659] UUID:Firmware Revision String UUIDString:2A26，data<2a26>
// 2016-06-17 14:24:30.723 BlueToothDemo[27905:17730659] UUID:Hardware Revision String UUIDString:2A27，data<2a27>
// 2016-06-17 14:24:30.724 BlueToothDemo[27905:17730659] UUID:Software Revision String UUIDString:2A28，data<2a28>
// 2016-06-17 14:24:30.724 BlueToothDemo[27905:17730659] UUID:IEEE Regulatory Certification UUIDString:2A2A，data<2a2a>
// 2016-06-17 14:24:30.871 BlueToothDemo[27905:17730659] 发现特征服务
// 2016-06-17 14:24:30.871 BlueToothDemo[27905:17730659] UUID:49535343-6DAA-4D02-ABF6-19569ACA69FE UUIDString:49535343-6DAA-4D02-ABF6-19569ACA69FE，data<49535343 6daa4d02 abf61956 9aca69fe>
// 2016-06-17 14:24:30.871 BlueToothDemo[27905:17730659] UUID:49535343-ACA3-481C-91EC-D85E28A60318 UUIDString:49535343-ACA3-481C-91EC-D85E28A60318，data<49535343 aca3481c 91ecd85e 28a60318>
// 2016-06-17 14:24:30.872 BlueToothDemo[27905:17730659] UUID:49535343-8841-43F4-A8D4-ECBE34729BB3 UUIDString:49535343-8841-43F4-A8D4-ECBE34729BB3，data<49535343 884143f4 a8d4ecbe 34729bb3>
// 2016-06-17 14:24:30.872 BlueToothDemo[27905:17730659] UUID:49535343-1E4D-4BD9-BA61-23C647249616 UUIDString:49535343-1E4D-4BD9-BA61-23C647249616，data<49535343 1e4d4bd9 ba6123c6 47249616>
}
}
//断开与设备链接
-(void)centralManager:(CBCentralManager *)central didDisconnectPeripheral:(CBPeripheral *)peripheral error:(NSError *)error{
[self updatelog:[NSString stringWithFormat:@"已断开与设备%@链接",peripheral.name]];
UIAlertController *alertController = [UIAlertController alertControllerWithTitle:@"" message:[NSString stringWithFormat:@"已断开与设备%@链接",peripheral.name] preferredStyle:UIAlertControllerStyleAlert];
UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:@"从新链接" style:UIAlertActionStyleDestructive handler:^(UIAlertAction * _Nonnull action) {
[_manager connectPeripheral:_peripheral options:nil];
}];
UIAlertAction *okAction = [UIAlertAction actionWithTitle:@"好的" style:UIAlertActionStyleDefault handler:nil];
[alertController addAction:cancelAction];
[alertController addAction:okAction];
[self presentViewController:alertController animated:YES completion:nil];
}
//获取外设发来的数据
-(void)peripheral:(CBPeripheral *)peripheral didUpdateValueForCharacteristic:(CBCharacteristic *)characteristic error:(NSError *)error{
[self updatelog:[NSString stringWithFormat:@"%@",characteristic]];
NSData *data = characteristic.value;
Byte *resultByte = (Byte *)[data bytes];
NSLog(@"%s %ld",resultByte,[data length]);//Ampak 5 ， 6210B 5 ， £F 6
}
@end
参考文章：http://doc.okbase.net/kw-ios/archive/94529.htmlhtml
http://blog.csdn.net/dolacmeng/article/details/46457487ios
http://www.jianshu.com/p/84b5b834b942atom
http://www.jianshu.com/p/0bc96af31f10.net