IOS中?如何開發Ble藍牙

這篇文章給大家分享的是有關IOS中如何開發Ble藍牙的內容。小編覺得挺實用的，因此分享給大家做個參考，一起跟隨小編過來看看吧。

如何開發Ble藍牙。在藍牙中的一些常見服務，掃描，以及鏈接；

• 主藍牙類文件.h

• 主藍牙類文件.m

• UUID文件

• 藍牙列表展示的文件
  

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

BuleHelp.h

#import <Foundation/Foundation.h>
//導入藍牙框架
#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

//藍牙的設備搜索顯示在列表中
@property (nonatomic, strong) NSMutableArray <CBPeripheral*>*periperals;

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

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

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

@property (nonatomic,strong) DeviceModel *deviceModel;

//設備列表
@property (nonatomic,strong) NSMutableArray *deviceList;

@property (nonatomic,strong) NSMutableArray *commandArray;
//是否進行ota升級
@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;


//是否發送數據
@property (nonatomic) BOOL isSendData;

@property (strong,nonatomic) CommonUtil *commonUtil;

@property (strong,nonatomic) TempDB *tempDB;

@property (strong,nonatomic) NSDate *currentDate;

//時間格式化
@property(strong,nonatomic) NSDateFormatter *dateformatter;

@property(strong,nonatomic) NSString *deviceName;

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

@property (nonatomic,strong) CommonUserDefaults *userDefaults;
//發送溫度數據
@property (nonatomic,strong) CBCharacteristic *sendtempcharateristic;
//發送OTA數據
@property (nonatomic,strong) CBCharacteristic *sendotacharateristic;
//高／低溫度數據
//@property (nonatomic,strong) CBCharacteristic *sendhighalarmcharateristic;
//
//@property (nonatomic,strong) CBCharacteristic *sendlowalarmcharateristic;
//ota
@property (nonatomic,strong) CBCharacteristic *senddfucharateristic;
//發送字符串'CR'清除機子上的最大值(3個字節)
@property (nonatomic,strong) CBCharacteristic *senddcrstrateristic;
//發送字符串'PD'機子關機(3個字節)
@property (nonatomic,strong) CBCharacteristic *senddoutstrateristic;
//靜音
@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;

///<===============方法區塊=======================>
+ (id)sharedManager;

-(NSMutableArray *)getDeviceList;

-(NSMutableArray *)getPeriperalList;

-(void)startScan;
//連接藍牙
-(void)contentBlue:(int) row;
//斷開藍牙
-(void)disContentBle;

//斷開ota的藍牙連接
-(void)disContentOtaBle;

//溫度符號
-(void)writeTempUnit:(NSString *)value;

//寫入報警開關
-(void)writeAlarmSwitch:(NSString *)value;


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

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


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

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

//寫入設備的開關按鈕
-(void)writeBluePD:(NSString *)value;

//寫入低溫報警
//-(void)writeLowAlarm:(NSString *)value;
//
////寫入高溫報警
//-(void)writeHighAlarm:(NSString *)value;

//OTA固件升級 又稱為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;

/*
 * 停止掃描
 */
-(void)stopScan;

//是否是第一次連接設備
@property(assign,nonatomic) BOOL isconnected;

//當前的時間
@property(nonatomic,assign) long currentTime;

@property(nonatomic,strong) NSString *macAddre;

@property(nonatomic,strong) NSString *macName;

-(void)disMainOtaBle;

@end

BuleHelp.m

//程序運行后,會自動調用的檢查藍牙的方法 并掃描藍牙的方法
- (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");
 }
}

/*
 * 程序運行的時候開始掃描
 */
-(void)startScan{
 _periperals = [[NSMutableArray alloc] init];
 _deviceList = [[NSMutableArray alloc] init];
 //2.利用中心設備掃描外部設備
 [_centerManager scanForPeripheralsWithServices:nil options:nil];
}

/*
 * 停止掃描
 */
-(void)stopScan{
 [_centerManager stopScan];
}

/*
 * 設備中可以包含 Device addre地址 放在 key:kCBAdvDataManufacturerData中既可以得到
 * 1.硬件開發工程師 把地址寫入到設備的廠家信息中。
 */

- (void)centralManager:(CBCentralManager *)central didDiscoverPeripheral:(CBPeripheral *)peripheral advertisementData:(NSDictionary<NSString *,id> *)advertisementData RSSI:(NSNumber *)RSS{
 //判斷如果數組中不包含當前掃描到的外部設備才保存
 if (![_periperals containsObject:peripheral]){
  //包扣3種設備 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);
      // 小寫
      //NSString *lower = [test lowercaseString];
      // 大寫
      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;
   //藍牙地址
   _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];
  }
 }
}

//解析廣播里面的數據
-(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);
  }
 }
}

/*
 * 連接藍牙設備給外部調用的方法
 * 傳入的是相對應的行數
 */
-(void)contentBlue:(int) row{
 [_centerManager connectPeripheral:_periperals[row] options:nil];
}


-(void)disContentBle{
 //關鍵的斷開藍牙 通知也要停止掉
 if((_peripheral!=nil && _sendtempcharateristic!=nil)){
  [_peripheral setNotifyValue:NO forCharacteristic:_sendtempcharateristic];
  [self disconnectPeripheral:_peripheral];
 }
}


/*
 * 斷開ota的 連接
 */
-(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];
}

//連接成功
- (void)centralManager:(CBCentralManager *)central didConnectPeripheral:(CBPeripheral *)peripheral{
 NSLog(@"連接成功");
 if(peripheral!=nil){
  //停止掃描 這個用于自動連接的時候
  [_centerManager stopScan];
  //設備名稱
  _deviceName = peripheral.name;
  
  _selectperipheral = peripheral;
  
  peripheral.delegate = self;
  //再去掃描服務
  [peripheral discoverServices:nil];
  
 }
}

//連接失敗
- (void)centralManager:(CBCentralManager *)central didFailToConnectPeripheral:(CBPeripheral *)peripheral error:(nullable NSError *)error{
 NSLog(@"連接失敗,失敗原因:%@",error);
 NSString *disContentBlue = @"discontentblue";
 NSDictionary *blueDiscontent = [NSDictionary dictionaryWithObject:disContentBlue forKey:@"disconnect"];
 //發送廣播 連接失敗
 [[NSNotificationCenter defaultCenter] postNotificationName:@"disNofiction" object:nil userInfo:blueDiscontent];
}

//斷開連接
- (void)centralManager:(CBCentralManager *)central didDisconnectPeripheral:(CBPeripheral *)peripheral error:(NSError *)error{
 NSLog(@"斷開連接");
 NSString *disContentBlue = @"discontentblue";
 //_blueiscon = @"Disconnect";
 NSDictionary *blueDiscontent = [NSDictionary dictionaryWithObject:disContentBlue forKey:@"disconnect"];
 //發送廣播 連接失敗
 [[NSNotificationCenter defaultCenter] postNotificationName:@"disNofiction" object:nil userInfo:blueDiscontent];
}

//只要掃描到服務就會調用,其中的外設就是服務所在的外設
- (void)peripheral:(CBPeripheral *)peripheral didDiscoverServices:(NSError *)error{
 if (error){
  NSLog(@"掃描服務出現錯誤,錯誤原因:%@",error);
 }else{
  //獲取外設中所掃描到的服務
  for (CBService *service in peripheral.services){
   //拿到需要掃描的服務,例如FFF0 比如打印溫度數據
   //把所有的service打印出來
   //從需要的服務中查找需要的特征
   //從peripheral的services中掃描特征
   [peripheral discoverCharacteristics:nil forService:service];
  }
 }
}

//只要掃描到特征就會調用,其中的外設和服務就是特征所在的外設和服務
- (void)peripheral:(CBPeripheral *)peripheral didDiscoverCharacteristicsForService:(nonnull CBService *)service error:(nullable NSError *)error{
 if(error){
  NSLog(@"掃描特征出現錯誤,錯誤原因:%@",error);
 }else{
  //遍歷特征,拿到需要的特征進行處理
  for (CBCharacteristic *characteristic in service.characteristics){
   NSLog(@"characteristic is %@",characteristic.UUID);
   //如果是溫度數據處理
   if([characteristic.UUID isEqual:BOOT_TEMPVALUE_UUID]){
    //將全部的特征信息打印出來
    _isconnected = true;
    _peripheral = peripheral;
    _sendtempcharateristic = characteristic;
    [peripheral setNotifyValue:YES forCharacteristic:characteristic];
   }
   //如果是ota進行ota升級
   else if([characteristic.UUID isEqual:BOOT_OTA_WIRTE_UUID]){
    _peripheral = peripheral;
    _sendotacharateristic = characteristic;
    //設置通知
    [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];
   }
   //發送字符串'CR'清除機子上的最大值(3個字節)
   else if([characteristic.UUID isEqual:BOOT_CRSTRING_UUID]){
    _senddcrstrateristic = characteristic;
    [peripheral setNotifyValue:YES forCharacteristic:characteristic];
   }
   //發送字符串'PD'機子關機(3個字節)
   else if([characteristic.UUID isEqual:BOOT_OUTSTRING_UUID]){
    _senddoutstrateristic = characteristic;
    [peripheral setNotifyValue:YES forCharacteristic:characteristic];
   }
   else{
    
   }
  }
 }
}

/*
 設置通知
 */
-(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];
}

/*
 接收數據解析
 */
- (void)peripheral:(CBPeripheral *)peripheral didUpdateValueForCharacteristic:(CBCharacteristic *)characteristic error:(NSError *)error{
 //是否為Ota
 if(!self.isSendOta){
  if(self.readtempcharater == characteristic){
   NSString *tmpData = [self.cmUtil getTempTMWData:characteristic];
   if(tmpData!=nil){
    //開始處理數據
    NSArray *data = [tmpData componentsSeparatedByString:@","];
    TmpModel *tp = [[TmpModel alloc] init];
    tp.tmp = data[0];
    tp.max = data[1];
    tp.unit = data[2];
    //電量
    tp.bat = data[3];
    
    NSDictionary *tempDict = [NSDictionary dictionaryWithObject:tp forKey:@"tempData"];
    [[NSNotificationCenter defaultCenter] postNotificationName:@"tempNofiction" object:nil userInfo:tempDict];
    if([tp.bat isEqual:@"1"]){
     //低電量廣播
     NSDictionary *LowDict = [NSDictionary dictionaryWithObject:tp forKey:@"lowData"];
     [[NSNotificationCenter defaultCenter] postNotificationName:@"lowNofiction" object:nil userInfo:LowDict];
    }
   }
  }
 }

//======================寫入數據區塊========================//

/*
 寫入發送時間
 */
-(void)writeIntervalTime:(NSString *)value periperalData:(CBPeripheral*)periperal{
 if(value!=nil&&periperal!=nil&&self.sendtimecharater!=nil){
  [self writeData:value forCharacteristic:self.sendtimecharater periperalData:periperal];
 }
}

/*
 寫入溫度單位
 */
-(void)writeTmpUnit:(NSString*)value periperalData:(CBPeripheral*)periperal{
 if(value!=nil&&periperal!=nil&&self.sendunitcharater!=nil){
  [self writeData:value forCharacteristic:self.sendunitcharater periperalData:periperal];
 }
}

/*
 寫入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];
 }
}


/*
 發送Ota使得設備進入Ota
 */
-(void)writeDfuValue:(NSString *)value periperalData:(CBPeripheral*)periperal{
 if(value!=nil&&periperal!=nil&&self.senddfucharater!=nil){
  [self writeData:value forCharacteristic:self.senddfucharater periperalData:periperal];
 }
}

/*
 發送Max Temp實現清零選項
 */
-(void)writeClearValue:(NSString *)value periperalData:(CBPeripheral*)periperal{
 if(value!=nil&&periperal!=nil&&self.sendclearcharater!=nil){
  [self writeData:value forCharacteristic:self.sendclearcharater periperalData:periperal];
 }
}

/*
 發送關機選項實現遠程開關機
 */
-(void)writeCloseValue:(NSString *)value periperalData:(CBPeripheral*)periperal{
 if(value!=nil&&periperal!=nil&&self.sendclosecharater!=nil){
  [self writeData:value forCharacteristic:self.sendclosecharater periperalData:periperal];
 }
}


/*
 所有寫入的數據處理
 */
-(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];
 }
}

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