IOS Ble蓝牙开发实现

版权声明：本文为博主原创文章，未经博主允许不得转载。若有问题，请联系QQ1215192693 https://blog.csdn.net/qq_37523448/article/details/84247301

1.本篇博文阐述如何开发Ble蓝牙。在蓝牙中的一些常见服务，扫描，以及链接；

• 主蓝牙类文件.h
• 主蓝牙类文件.m
• UUID文件
• 蓝牙列表展示的文件

一：引入Ble蓝牙的框架<CoreBluetooth/CoreBluetooth.h>

BuleHelp.h

#import <Foundation/Foundation.h>
//导入蓝牙框架
#import <CoreBluetooth/CoreBluetooth.h>
#import "DeviceModel.h"
#import "Constants.h"
#import "CommonUserDefaults.h"
#import "CommonUtil.h"
#import "TempDB.h"

#define COMMAND_PACKET_MIN_SIZE  7

@interface BlueHelp : NSObject

//蓝牙的设备搜索显示在列表中
@property (nonatomic, strong) NSMutableArray <CBPeripheral*>*periperals;

//连接peripheral
@property(nonatomic,strong) CBPeripheral *peripheral;

//连接peripheral
@property(nonatomic,strong) CBPeripheral *selectperipheral;

//中心管理者
@property (nonatomic, strong) CBCentralManager *centerManager;

@property (nonatomic,strong) DeviceModel *deviceModel;

//设备列表
@property (nonatomic,strong) NSMutableArray *deviceList;

@property (nonatomic,strong) NSMutableArray *commandArray;
//是否进行ota升级
@property (nonatomic) BOOL isOta;

@property (nonatomic) BOOL isWritePacketDataSuccess;

@property (strong,nonatomic) NSString * checkSumType;

/*!
 *  @property isApplicationValid
 *
 *  @discussion flag used to check whether the application writing is success
 *
 */
@property (nonatomic) BOOL isApplicationValid;
/*!
 *  @property checkSum
 *
 *  @discussion checkSum received from the device for writing a single row
 *
 */
@property (assign) uint8_t checkSum;

/*!
 *  @property startRowNumber
 *
 *  @discussion Device flash start row number
 *
 */
@property (nonatomic) int startRowNumber;

/*!
 *  @property endRowNumber
 *
 *  @discussion Device flash end row number
 *
 */
@property (nonatomic) int endRowNumber;

/*!
 *  @property siliconIDString
 *
 *  @discussion siliconID from the device response
 *
 */
@property (strong,nonatomic) NSString *siliconIDString;
/*!
 *  @property siliconRevString
 *
 *  @discussion silicon rev from the device response
 *
 */
@property (strong,nonatomic) NSString *siliconRevString;


//是否发送数据
@property (nonatomic) BOOL isSendData;

@property (strong,nonatomic) CommonUtil *commonUtil;

@property (strong,nonatomic) TempDB *tempDB;

@property (strong,nonatomic) NSDate *currentDate;

//时间格式化
@property(strong,nonatomic) NSDateFormatter  *dateformatter;

@property(strong,nonatomic) NSString *deviceName;

//@property (nonatomic,strong) NSUserDefaults *userDefaults;

@property (nonatomic,strong) CommonUserDefaults *userDefaults;
//发送温度数据
@property (nonatomic,strong) CBCharacteristic *sendtempcharateristic;
//发送OTA数据
@property (nonatomic,strong) CBCharacteristic *sendotacharateristic;
//高／低温度数据
//@property (nonatomic,strong) CBCharacteristic *sendhighalarmcharateristic;
//
//@property (nonatomic,strong) CBCharacteristic *sendlowalarmcharateristic;
//ota
@property (nonatomic,strong) CBCharacteristic *senddfucharateristic;
//发送字符串'CR'清除机子上的最大值(3个字节)
@property (nonatomic,strong) CBCharacteristic *senddcrstrateristic;
//发送字符串'PD'机子关机(3个字节)
@property (nonatomic,strong) CBCharacteristic *senddoutstrateristic;
//静音
@property (strong,nonatomic) CBCharacteristic *sendmutealarmcharateristic;
//calset
@property(strong,nonatomic) CBCharacteristic *sendcalsetcharateristic;
//intervaltime
@property(strong,nonatomic) CBCharacteristic *sendintervaltimecharateristic;
//alarmswitch
@property(strong,nonatomic) CBCharacteristic *sendalarmswitchcharateristic;
//tempunit
@property(strong,nonatomic) CBCharacteristic *sendtempunitcharateristic;

@property(strong,nonatomic) CBCharacteristic *sendlowalarmswitchcharateristic;

///<===============方法区块=======================>
+ (id)sharedManager;

-(NSMutableArray *)getDeviceList;

-(NSMutableArray *)getPeriperalList;

-(void)startScan;
//连接蓝牙
-(void)contentBlue:(int) row;
//断开蓝牙
-(void)disContentBle;

//断开ota的蓝牙连接
-(void)disContentOtaBle;

//温度符号
-(void)writeTempUnit:(NSString *)value;

//写入报警开关
-(void)writeAlarmSwitch:(NSString *)value;


//写入mute alarm
-(void)writeMuteAlarm:(NSString *)value;

//写入CR CLERVULE
-(void)writeClearCR:(NSString *)value;


//写入interval time
-(void)writeIntervalTime:(NSString *)value;

//写入cal set
-(void)writeCalSet:(NSString *)value;

//写入设备的开关按钮
-(void)writeBluePD:(NSString *)value;

//写入低温报警
//-(void)writeLowAlarm:(NSString *)value;
//
////写入高温报警
//-(void)writeHighAlarm:(NSString *)value;

//OTA固件升级 又称为DFU
-(void)writeUpdateOTA:(NSString*)value;

-(void)writeBlueOTA:(NSString *)value;

-(void)wirteBlueOTAData:(NSData *)value;

-(void)writeLowAlarmSwitch:(NSString *)value;

-(void) discoverCharacteristicsWithCompletionHandler:(void (^) (BOOL success, NSError *error)) handler;

-(void)updateValueForCharacteristicWithCompletionHandler:(void (^) (BOOL success,id command,NSError *error)) handler;

-(void) stopUpdate;

-(void) setCheckSumType:(NSString *) type;

-(NSData *) createCommandPacketWithCommand:(uint8_t)commandCode dataLength:(unsigned short)dataLength data:(NSDictionary *)packetDataDictionary;

-(void) writeValueToCharacteristicWithData:(NSData *)data bootLoaderCommandCode:(unsigned short)commandCode;

/*
 * 停止扫描
 */
-(void)stopScan;

//是否是第一次连接设备
@property(assign,nonatomic) BOOL isconnected;

//当前的时间
@property(nonatomic,assign) long currentTime;

@property(nonatomic,strong) NSString *macAddre;

@property(nonatomic,strong) NSString *macName;

-(void)disMainOtaBle;

@end

BuleHelp.m

//程序运行后,会自动调用的检查蓝牙的方法 并扫描蓝牙的方法
- (void)centralManagerDidUpdateState:(CBCentralManager *)central{
    if ([central state] == CBCentralManagerStatePoweredOff) {
        NSLog(@"CoreBluetooth BLE hardware is powered off");
    }
    else if ([central state] == CBCentralManagerStatePoweredOn) {
        NSLog(@"CoreBluetooth BLE hardware is powered on and ready");
        [self startScan];
    }
    else if ([central state] == CBCentralManagerStateUnauthorized) {
        NSLog(@"CoreBluetooth BLE state is unauthorized");
    }
    else if ([central state] == CBCentralManagerStateUnknown) {
        NSLog(@"CoreBluetooth BLE state is unknown");
    }
    else if ([central state] == CBCentralManagerStateUnsupported) {
        NSLog(@"CoreBluetooth BLE hardware is unsupported on this platform");
    }
}

/*
 * 程序运行的时候开始扫描
 */
-(void)startScan{
    _periperals = [[NSMutableArray alloc] init];
    _deviceList = [[NSMutableArray alloc] init];
    //2.利用中心设备扫描外部设备
    [_centerManager scanForPeripheralsWithServices:nil options:nil];
}

/*
 * 停止扫描
 */
-(void)stopScan{
    [_centerManager stopScan];
}

/*
 * 设备中可以包含 Device addre地址 放在 key:kCBAdvDataManufacturerData中既可以得到
 * 1.硬件开发工程师 把地址写入到设备的厂家信息中。
 */

- (void)centralManager:(CBCentralManager *)central didDiscoverPeripheral:(CBPeripheral *)peripheral advertisementData:(NSDictionary<NSString *,id> *)advertisementData RSSI:(NSNumber *)RSS{
    //判断如果数组中不包含当前扫描到的外部设备才保存
    if (![_periperals containsObject:peripheral]){
        //包扣3种设备 都需要去搜索
        if([peripheral.name containsString:@"TMW012BT"]||[peripheral.name containsString:@"OTA"]){
            NSLog(@"DATA: %@", advertisementData);
            NSArray *keys = [advertisementData allKeys];
            for (int i = 0; i < [keys count]; ++i) {
                id key = [keys objectAtIndex: i];
                NSString *keyName = (NSString *) key;
                NSData *value = [advertisementData objectForKey: key];
                
                if([keyName isEqualToString:@"kCBAdvDataManufacturerData"]){
                    NSLog(@"value is %@",value);
                    NSString *result = [self convertDataToHexStr:value];
                    NSLog(@"reslut is %@",result);
                    if(result!=nil&&result.length>4){
                        NSString *d = [result substringFromIndex:4];
                        NSLog(@"D IS %@",d);
                        // 小写
                        //NSString *lower = [test lowercaseString];
                        // 大写
                        NSString *upper = [d uppercaseString];
                        _macAddre = [NSString stringWithFormat:@"S/N:%@",upper];
                    }
                }
                
                if([keyName isEqualToString:@"kCBAdvDataLocalName"]){
                    NSString *aStr= (NSString*)value;
                    NSLog(@"astr is %@",aStr);
                    _macName = aStr;
                }
            }
            
            _deviceModel = [DeviceModel new];
            _deviceModel.deviceName = _macName;
            //蓝牙地址
            _deviceModel.deviceAddre = _macAddre;
            
            int rssi = [RSS intValue];
            NSString *range = [NSString stringWithFormat:@"%d",rssi];
            NSString *rs = [NSString stringWithFormat:@"RSSI %@dBm",range];
            //添加到里面
            [self.periperals addObject:peripheral];
            _deviceModel.deviceRssi = rs;
            [_deviceList addObject:_deviceModel];
        }
    }
}

//解析广播里面的数据
-(void)getAdvertisementData:(NSDictionary<NSString *,id> *) advertisementData{
    NSArray *keys = [advertisementData allKeys];
    for (int i = 0; i < [keys count]; ++i) {
        id key = [keys objectAtIndex: i];
        NSString *keyName = (NSString *) key;
        NSObject *value = [advertisementData objectForKey: key];
        
        if([keyName isEqualToString:@"kCBAdvDataManufacturerData"]){
            printf("   key: %s\n", [keyName cStringUsingEncoding: NSUTF8StringEncoding]);
            NSString *values = (NSString *) value;
            NSLog(@"values is %@",values);
        }
    }
}

/*
 * 连接蓝牙设备给外部调用的方法
 * 传入的是相对应的行数
 */
-(void)contentBlue:(int) row{
    [_centerManager connectPeripheral:_periperals[row] options:nil];
}


-(void)disContentBle{
    //关键的断开蓝牙  通知也要停止掉
    if((_peripheral!=nil && _sendtempcharateristic!=nil)){
        [_peripheral setNotifyValue:NO forCharacteristic:_sendtempcharateristic];
        [self disconnectPeripheral:_peripheral];
    }
}


/*
 * 断开ota的 连接
 */
-(void)disContentOtaBle{
    if(_peripheral!=nil && _sendotacharateristic!=nil){
        [_peripheral setNotifyValue:NO forCharacteristic:_sendotacharateristic];
        [self disconnectPeripheral:_peripheral];
    }
}

-(void)disMainOtaBle{
    if(_peripheral!=nil){
        [self disconnectPeripheral:_peripheral];
    }
}

- (void) disconnectPeripheral:(CBPeripheral*)peripheral
{
    [_centerManager cancelPeripheralConnection:peripheral];
}

//连接成功
- (void)centralManager:(CBCentralManager *)central didConnectPeripheral:(CBPeripheral *)peripheral{
    NSLog(@"连接成功");
    if(peripheral!=nil){
        //停止扫描 这个用于自动连接的时候
        [_centerManager stopScan];
        //设备名称
        _deviceName = peripheral.name;
        
        _selectperipheral = peripheral;
        
        peripheral.delegate = self;
        //再去扫描服务
        [peripheral discoverServices:nil];
       
    }
}

//连接失败
- (void)centralManager:(CBCentralManager *)central didFailToConnectPeripheral:(CBPeripheral *)peripheral error:(nullable NSError *)error{
    NSLog(@"连接失败,失败原因:%@",error);
    NSString *disContentBlue = @"discontentblue";
    NSDictionary *blueDiscontent = [NSDictionary dictionaryWithObject:disContentBlue forKey:@"disconnect"];
    //发送广播 连接失败
    [[NSNotificationCenter defaultCenter] postNotificationName:@"disNofiction" object:nil userInfo:blueDiscontent];
}

//断开连接
- (void)centralManager:(CBCentralManager *)central didDisconnectPeripheral:(CBPeripheral *)peripheral error:(NSError *)error{
    NSLog(@"断开连接");
    NSString *disContentBlue = @"discontentblue";
    //_blueiscon = @"Disconnect";
    NSDictionary *blueDiscontent = [NSDictionary dictionaryWithObject:disContentBlue forKey:@"disconnect"];
    //发送广播 连接失败
    [[NSNotificationCenter defaultCenter] postNotificationName:@"disNofiction" object:nil userInfo:blueDiscontent];
}

//只要扫描到服务就会调用,其中的外设就是服务所在的外设
- (void)peripheral:(CBPeripheral *)peripheral didDiscoverServices:(NSError *)error{
    if (error){
        NSLog(@"扫描服务出现错误,错误原因:%@",error);
    }else{
        //获取外设中所扫描到的服务
        for (CBService *service in peripheral.services){
            //拿到需要扫描的服务,例如FFF0 比如打印温度数据
            //把所有的service打印出来
            //从需要的服务中查找需要的特征
            //从peripheral的services中扫描特征
            [peripheral discoverCharacteristics:nil forService:service];
        }
    }
}

//只要扫描到特征就会调用,其中的外设和服务就是特征所在的外设和服务
- (void)peripheral:(CBPeripheral *)peripheral didDiscoverCharacteristicsForService:(nonnull CBService *)service error:(nullable NSError *)error{
    if(error){
        NSLog(@"扫描特征出现错误,错误原因:%@",error);
    }else{
        //遍历特征,拿到需要的特征进行处理
        for (CBCharacteristic *characteristic in service.characteristics){
            NSLog(@"characteristic is %@",characteristic.UUID);
            //如果是温度数据处理
            if([characteristic.UUID isEqual:BOOT_TEMPVALUE_UUID]){
                //将全部的特征信息打印出来
                _isconnected = true;
                _peripheral = peripheral;
                _sendtempcharateristic = characteristic;
                [peripheral setNotifyValue:YES forCharacteristic:characteristic];
            }
            //如果是ota进行ota升级
            else if([characteristic.UUID isEqual:BOOT_OTA_WIRTE_UUID]){
                _peripheral = peripheral;
                _sendotacharateristic = characteristic;
                //设置通知
                [peripheral setNotifyValue:YES forCharacteristic:characteristic];
                _isOta = TRUE;
                [_userDefaults saveOta:_isOta];
                //[_ setBool:_isOta forKey:@"isOTA"];
                NSString *s = @"OTA";
                NSDictionary *tempOta = [NSDictionary dictionaryWithObject:s forKey:@"ota"];
                [[NSNotificationCenter defaultCenter] postNotificationName:@"tempOTA" object:nil userInfo:tempOta];
            }
            //CAL
            else if([characteristic.UUID isEqual:BOOT_CAL_UUID]){
                _sendcalsetcharateristic = characteristic;
                [peripheral setNotifyValue:YES forCharacteristic:characteristic];
            }
            //interval time
            else if([characteristic.UUID isEqual:BOOT_INTERVALTIME_UUID]){
                _sendintervaltimecharateristic = characteristic;
                [peripheral setNotifyValue:YES forCharacteristic:characteristic];
            }
            //Tempunit
            else if([characteristic.UUID isEqual:BOOT_TEMPUNIT_UUID]){
                _sendtempunitcharateristic = characteristic;
                [peripheral setNotifyValue:YES forCharacteristic:characteristic];
            }
            
            //DFU
            else if([characteristic.UUID isEqual:BOOT_DFU_UUID]){
                _senddfucharateristic = characteristic;
                [peripheral setNotifyValue:YES forCharacteristic:characteristic];
            }
            //发送字符串'CR'清除机子上的最大值(3个字节)
            else if([characteristic.UUID isEqual:BOOT_CRSTRING_UUID]){
                _senddcrstrateristic = characteristic;
                [peripheral setNotifyValue:YES forCharacteristic:characteristic];
            }
            //发送字符串'PD'机子关机(3个字节)
            else if([characteristic.UUID isEqual:BOOT_OUTSTRING_UUID]){
                _senddoutstrateristic = characteristic;
                [peripheral setNotifyValue:YES forCharacteristic:characteristic];
            }
            else{
                
            }
        }
    }
}

/*
    设置通知
 */
-(void)notifyCharacteristic:(CBPeripheral *)peripheral
             characteristic:(CBCharacteristic *)characteristic{
    [peripheral setNotifyValue:YES forCharacteristic:characteristic];
    [_centerManager stopScan];
}

/*
    取消通知
 */
-(void)cancelNotifyCharacteristic:(CBPeripheral *)peripheral
                   characteristic:(CBCharacteristic *)characteristic{
    [peripheral setNotifyValue:NO forCharacteristic:characteristic];
}

/*
    接收数据解析
 */
- (void)peripheral:(CBPeripheral *)peripheral didUpdateValueForCharacteristic:(CBCharacteristic *)characteristic error:(NSError *)error{
    //是否为Ota
    if(!self.isSendOta){
        if(self.readtempcharater == characteristic){
            NSString *tmpData = [self.cmUtil getTempTMWData:characteristic];
            if(tmpData!=nil){
                //开始处理数据
                NSArray *data = [tmpData componentsSeparatedByString:@","];
                TmpModel *tp = [[TmpModel alloc] init];
                tp.tmp = data[0];
                tp.max = data[1];
                tp.unit = data[2];
                //电量
                tp.bat = data[3];
                
                NSDictionary *tempDict = [NSDictionary dictionaryWithObject:tp forKey:@"tempData"];
                [[NSNotificationCenter defaultCenter] postNotificationName:@"tempNofiction" object:nil userInfo:tempDict];
                if([tp.bat isEqual:@"1"]){
                    //低电量广播
                    NSDictionary *LowDict = [NSDictionary dictionaryWithObject:tp forKey:@"lowData"];
                    [[NSNotificationCenter defaultCenter] postNotificationName:@"lowNofiction" object:nil userInfo:LowDict];
                }
            }
        }
    }

//======================写入数据区块========================//

/*
    写入发送时间
 */
-(void)writeIntervalTime:(NSString *)value periperalData:(CBPeripheral*)periperal{
    if(value!=nil&&periperal!=nil&&self.sendtimecharater!=nil){
        [self writeData:value forCharacteristic:self.sendtimecharater periperalData:periperal];
    }
}

/*
    写入温度单位
 */
-(void)writeTmpUnit:(NSString*)value periperalData:(CBPeripheral*)periperal{
    if(value!=nil&&periperal!=nil&&self.sendunitcharater!=nil){
        [self writeData:value forCharacteristic:self.sendunitcharater periperalData:periperal];
    }
}

/*
    写入Cal值
 */
-(void)writeCalValue:(NSString *)value periperalData:(CBPeripheral*)periperal{
    if(value!=nil&&periperal!=nil&&self.sendcalcharater!=nil){
        [self writeData:value forCharacteristic:self.sendcalcharater periperalData:periperal];
    }
}


/*
    发送Ota使得设备进入Ota
 */
-(void)writeDfuValue:(NSString *)value periperalData:(CBPeripheral*)periperal{
    if(value!=nil&&periperal!=nil&&self.senddfucharater!=nil){
        [self writeData:value forCharacteristic:self.senddfucharater periperalData:periperal];
    }
}

/*
    发送Max Temp实现清零选项
 */
-(void)writeClearValue:(NSString *)value periperalData:(CBPeripheral*)periperal{
    if(value!=nil&&periperal!=nil&&self.sendclearcharater!=nil){
        [self writeData:value forCharacteristic:self.sendclearcharater periperalData:periperal];
    }
}

/*
    发送关机选项实现远程开关机
 */
-(void)writeCloseValue:(NSString *)value periperalData:(CBPeripheral*)periperal{
    if(value!=nil&&periperal!=nil&&self.sendclosecharater!=nil){
        [self writeData:value forCharacteristic:self.sendclosecharater periperalData:periperal];
    }
}


/*
    所有写入的数据处理
 */
-(void)writeData:(NSString *)value forCharacteristic:(CBCharacteristic *)characteristic periperalData:(CBPeripheral*)periperal{
    NSData *data = [value dataUsingEncoding:NSUTF8StringEncoding];
    if(characteristic.properties & CBCharacteristicPropertyWriteWithoutResponse)
    {
        [periperal writeValue:data forCharacteristic:characteristic type:CBCharacteristicWriteWithoutResponse];
    }else
    {
        [periperal writeValue:data forCharacteristic:characteristic type:CBCharacteristicWriteWithResponse];
    }
}

此篇文章阐述到这，基本BLE蓝牙开发实现都详细的描述了。谢谢看官的阅读…不要忘了点赞，你的赞是博主往后继续更新IOS系列蓝牙文章的最大动力，嘤嘤嘤…