IOS/Android 读取蓝牙设备电量信息

IOS/Android 读取蓝牙设备电量信息

使用系统API扫描到蓝牙设备：

IOS使用到的framework

     1.CoreBluetooth/CoreBluetooth.h

Android使用到的framework

     1.android.bluetooth.BluetoothAdapter

     2.android.bluetooth.BluetoothDevice

     3.android.bluetooth.BluetoothManager

蓝牙默认广播中是不会带有电量信息的，但是可以通过定制蓝牙硬件的方式，手动添加额外信息ServiceData，然后使用IOS/Android原生的API扫描蓝牙广播数据，并根据自己定义的协议对其进行解析便可得到蓝牙电量信息。

IOS 代码示例

- (void)centralManager:(CBCentralManager*)central didDiscoverPeripheral:(CBPeripheral*)peripheral advertisementData:(NSDictionary<NSString*,id> *)advertisementData RSSI:(NSNumber*)RSSI {     NSArray *keys = [advertisementData allKeys];     for (inti = 0; i < [keyscount]; ++i) {         id key = [keys objectAtIndex: i];         NSString *keyName = (NSString*) key;         NSObject *value = [advertisementData objectForKey: key];         if ([value isKindOfClass: [NSArrayclass]]) {             printf("key01: %s\n", [keyName cStringUsingEncoding:NSUTF8StringEncoding]);             NSArray *values = (NSArray*) value;             for (intj = 0; j < [valuescount]; ++j) {                 if ([[values objectAtIndex: j]isKindOfClass: [CBUUIDclass]]) {                     CBUUID *uuid = [values objectAtIndex: j];                     NSData *data = uuid.data;                     printf("UUID(%d):", j);                     for (intj = 0; j < data.length; ++j)                         printf(" %2X", ((UInt8*) data.bytes)[j]);                     printf("\n");                 } else {                     const char *valueString = [[value description]cStringUsingEncoding:NSUTF8StringEncoding];                     printf("      value(%d): %s\n", j, valueString);                 }             }         } else {             const char *valueString = [[value description]cStringUsingEncoding:NSUTF8StringEncoding];                         if([keyNameisEqualToString:@"kCBAdvDataServiceData"]) {                 NSString *string = [NSStringstringWithUTF8String:valueString];                 [selfcheckAndAddNewDevice:string];             }             NSLog(@"   key02: %s, value: %@\n", [keyName cStringUsingEncoding:NSUTF8StringEncoding], [NSStringstringWithUTF8String:valueString]);         }     } } //解析广播包 - (void)checkAndAddNewDevice:(NSString*)serverData {     void (^CallBack)() = ^(){         if(self.delegate&& [self.delegaterespondsToSelector:@selector(updateDataSources:)]) {             [self.delegateupdateDataSources:_bleArray];         }         self.status= (self.bleArray&& self.bleArray.count>0) ? BLEStatus_Gotit : BLEStatus_NoDevices;         if(self.delegate&& [self.delegaterespondsToSelector:@selector(didScannerStatusChanged:)]) {             [self.delegatedidScannerStatusChanged:_status];         }     };     BLEModel *newModel = [selfbluetoothServerDataAnalyzer:serverData];     BOOL exist = false;     if(! newModel)return;     if(!_bleArray) _bleArray = [NSMutableArraynew];     for(BLEModel*model in _bleArray) {         if([model.b_macisEqualToString:newModel.b_mac])             exist = true;     }     if(!exist) {         [_bleArrayaddObject:newModel];         CallBack();;     } } - (BLEModel*)bluetoothServerDataAnalyzer:(NSString*)serverData {     BLEModel *model = nil;     if(!serverData) {         return nil;     }     if([serverDatacontainsString:@" = "] && [serverData containsString:@"<"] && [serverData containsString:@">"]) {         NSArray *array = [serverData componentsSeparatedByString:@" = "];         if(array.count== 2) {             NSString *data = array[1];             data = [data stringByTrimmingCharactersInSet:[NSCharacterSetwhitespaceAndNewlineCharacterSet ]];             data = [data stringByReplacingOccurrencesOfString:@" "withString:@""];             if(data.length== 21) {                 NSString *body = [data substringWithRange:NSMakeRange(1, data.length-5)];                 NSString *b_version = [body substringWithRange:NSMakeRange(0,2)];                 NSString *b_bettery = [body substringWithRange:NSMakeRange(2,2)];                 NSString *b_mac     = [body substringWithRange:NSMakeRange(4, body.length-4)];                 model = [[BLEModelalloc]init:b_versionbettery:b_betterymac:b_mac]; //                NSLog(@"版本:%@电量:%@ mac:%@", model.b_version, model.b_bettery, model.b_mac);             }         }     }     return model; }

Android 代码示例

/**      * 扫描设备      *      * @param enable      */     private void scanLeDevice(booleanenable) {         if (enable) {             mHandler.postDelayed(newRunnable() {                 @Override                 public void run() {                     // TODO Auto-generated method stub                     mBluetoothAdapter.stopLeScan(mLeScanCallback);                     invalidateOptionsMenu();                 }             }, SCAN_PERIOD);//在搜索时间内，关闭搜索标志，不对搜索回调函数进行响应             mBluetoothAdapter.startLeScan(mLeScanCallback);         } else {             mBluetoothAdapter.stopLeScan(mLeScanCallback);         }         Logger.error(TAG, "是否开始扫描="+ enable);         invalidateOptionsMenu();     }     // Device scan callback.     private BluetoothAdapter.LeScanCallback mLeScanCallback = new BluetoothAdapter.LeScanCallback() {         @Override         public void onLeScan(finalBluetoothDevice device, int rssi, byte[] scanRecord) {             final IBeaconClass.IBeacon ibeacon = IBeaconClass.fromScanData(device, rssi, scanRecord);             if (ibeacon == null)return;             try {                 String strTemp = StringUtil.bytesToHexString(scanRecord);                 Logger.error(TAG, strTemp.length() + "=长度，回调方法-onLeScan()="+ strTemp);//0201061aff4c000215fda50693a4e24fb1afcfc6eb07647825000a0007c5090942523531343633310b1642523d6400cdff003ab100000000000000000000                 if (!TextUtils.isEmpty(strTemp)) {                     String usefulData = strTemp.substring(86,106);//4252 3d6400cdff003a9e                     Logger.error(TAG, usefulData.length() + "=长度，回调方法-onLeScan()截取有用数据usefulData="+ usefulData); //                String serviceID1 = usefulData.substring(2); //                    String serviceID = usefulData.substring(2, 4); //                    if (serviceID.equals("52")) {                         String strVersion = usefulData.substring(4,6);                         int intVersion = Integer.parseInt(strVersion, 16);                         String strPower = usefulData.substring(6,8);                         int intPower = Integer.parseInt(strPower, 16);                         Logger.error(TAG, strVersion + "=strVersion回调方法-onLeScan()，版本值intVersion="+ intVersion);                         Logger.error(TAG, strPower + "=strPower回调方法-onLeScan()，电量值intPower="+ intPower);                         if (intPower > 0) {                             ibeacon.version = intVersion;                             ibeacon.power = intPower;                             runOnUiThread(newRunnable() {                                 @Override                                 public void run() {                                     adapter.addDevice(ibeacon);                                 }                             });                         } //                    }                 }             } catch (Exception e) {                 Logger.error(TAG, "解析蓝牙数据出错="+ e);             }         }     };