Android安卓蓝牙BLE 扫描连接接收数据 封装好的类

这是官方的源码http://download.csdn.net/download/lqw770737185/8116019 运行不了的可以在应用商店搜索BLE Sample找到APP 下载下来看效果

但是官方Demo又是Service又是广播,跳来跳去,看得人云里雾里,在这里我将它精简了一下,封装成一个类,根据提示调用对应的方法就可以实现扫描蓝牙设备并接受数据

记得加权限

<uses-permission android:name="android.permission.BLUETOOTH"/> <uses-permission android:name="android.permission.BLUETOOTH_ADMIN"/> <uses-feature android:name="android.hardware.bluetooth_le" android:required="true"/>

上代码

package yipai.xudongjian.bluetoothsample; import android.bluetooth.BluetoothAdapter; import android.bluetooth.BluetoothDevice; import android.bluetooth.BluetoothGatt; import android.bluetooth.BluetoothGattCallback; import android.bluetooth.BluetoothGattCharacteristic; import android.bluetooth.BluetoothGattService; import android.bluetooth.BluetoothManager; import android.bluetooth.BluetoothProfile; import android.content.Context; import android.os.Handler; import android.os.Message; import java.util.HashMap; import java.util.Iterator; import java.util.List; import java.util.Map; import java.util.UUID; /** * setLeScanCallback方法:扫描蓝牙设备,监听器返回蓝牙设备 * connectDevice方法:连接蓝牙设备,监听器返回BluetoothService集合 * getData方法:获取数据,监听器返回数据 * Created by xudongjian on 16/11/30. */ public class Bluetooth { private Context mContext;//上下文 private BluetoothManager mBluetoothManager;//蓝牙管理员 private BluetoothAdapter mBluetoothAdapter;//蓝牙控制器 private BluetoothGatt mBluetoothGatt;//用于控制蓝牙设备 private GetBluetoothGattService getBluetoothGattService;//用于向调用端返回BluetoothService集合 private OnDataChangeListener onDataChangeListener;//用于向调用端返回数据 private Map<String,Object> map_handler; //蓝牙设备的Service的UUID private static UUID UUID_SERVICE; //蓝牙设备的Characteristic的UUID private static UUID UUID_CHARACTERISTIC; //用于接收callback的各种数据 private Handler handler=new Handler(){ @Override public void handleMessage(Message msg) { super.handleMessage(msg); Map<String,Object> map= (Map<String, Object>) msg.obj; Iterator iterator=map.entrySet().iterator(); while (iterator.hasNext()){ Map.Entry entry= (Map.Entry) iterator.next(); if(entry.getKey().equals("services")){//message中 getBluetoothGattService.bluetoothGattService((List<BluetoothGattService>)entry.getValue()); }else if (entry.getKey().equals("data")){ onDataChangeListener.onDataChange((String) entry.getValue()); }else if (entry.getKey().equals("state")){ if(onDataChangeListener!=null)onDataChangeListener.onStateChange((String) entry.getValue()); } } } }; /* 返回蓝牙设备的状态和数据 注意:方法体不在主线程,请勿进行更新UI的操作 */ private BluetoothGattCallback callback = new BluetoothGattCallback() { @Override public void onConnectionStateChange(BluetoothGatt gatt, int status, int newState) { Message message=new Message(); if (status == BluetoothGatt.GATT_SUCCESS) { if (newState == BluetoothProfile.STATE_CONNECTED) { mBluetoothGatt.discoverServices(); map_handler.put("state","连接成功"); } else if (newState == BluetoothGatt.STATE_DISCONNECTED) { map_handler.put("state","断开连接"); } message.obj= map_handler; handler.sendMessage(message); } } @Override public void onServicesDiscovered(BluetoothGatt gatt, int status) { if (UUID_SERVICE == null && UUID_CHARACTERISTIC == null) { Message message = new Message(); map_handler.put("services",mBluetoothGatt.getServices()); message.obj = map_handler; handler.sendMessage(message); } else { BluetoothGattCharacteristic characteristic = gatt.getService(UUID_SERVICE).getCharacteristic(UUID_CHARACTERISTIC); mBluetoothGatt.setCharacteristicNotification(characteristic, true); mBluetoothGatt.readCharacteristic(characteristic); } } @Override public void onCharacteristicChanged(BluetoothGatt gatt, BluetoothGattCharacteristic characteristic) { Message message = new Message(); map_handler.put("data", new String(characteristic.getValue())); message.obj =map_handler; handler.sendMessage(message); } @Override public void onCharacteristicRead(BluetoothGatt gatt, BluetoothGattCharacteristic characteristic, int status) { Message message = new Message(); map_handler.put("data",new String(characteristic.getValue())); message.obj = map_handler; handler.sendMessage(message); } }; /** * 构造函数 * @param context */ public Bluetooth(Context context) { mContext = context; mBluetoothManager = (BluetoothManager) mContext.getSystemService(Context.BLUETOOTH_SERVICE); mBluetoothAdapter = mBluetoothManager.getAdapter(); if (!mBluetoothAdapter.isEnabled()) { mBluetoothAdapter.enable(); } map_handler=new HashMap<>(); } /** * 扫描蓝牙设备 * @param leScanCallback */ public void setLeScanCallback(BluetoothAdapter.LeScanCallback leScanCallback) { mBluetoothAdapter.startLeScan(leScanCallback); } /** * 连接设备 * @param bluetoothAddress 设备的蓝牙地址 * @param getBluetoothGattService 返回BluetoothService集合监听器 */ public void connectDevice(String bluetoothAddress, GetBluetoothGattService getBluetoothGattService) { this.getBluetoothGattService = getBluetoothGattService; BluetoothDevice bluetoothDevice = mBluetoothAdapter.getRemoteDevice(bluetoothAddress); mBluetoothGatt = bluetoothDevice.connectGatt(mContext, true, callback); } /* 返回BluetoothService集合监听器 */ public interface GetBluetoothGattService { /** * @param list BluetoothService集合 */ void bluetoothGattService(List<BluetoothGattService> list); } /** * 获取数据,必须先调用connectDevice这个方法,或者使用带蓝牙地址参数的那个方法 * @param UUID_service 需要获取的数据的Service * @param UUID_characteristic 需要获取数据的Characteristic * @param onDataChangeListener 数据变化监听器 */ public void getData(String UUID_service, String UUID_characteristic, OnDataChangeListener onDataChangeListener) { UUID_SERVICE = UUID.fromString(UUID_service); UUID_CHARACTERISTIC = UUID.fromString(UUID_characteristic); BluetoothGattCharacteristic characteristic = mBluetoothGatt.getService(UUID_SERVICE).getCharacteristic(UUID_CHARACTERISTIC); mBluetoothGatt.setCharacteristicNotification(characteristic, true); mBluetoothGatt.readCharacteristic(characteristic); this.onDataChangeListener = onDataChangeListener; } /** * 获取数据 * @param bluetoothAddress 蓝牙地址 * @param UUID_service 需要获取数据的Characteristic的Service * @param UUID_characteristic 需要获取数据的Characteristic * @param onDataChangeListener 数据变化监听器 */ public void getData(String bluetoothAddress, String UUID_service, String UUID_characteristic, OnDataChangeListener onDataChangeListener) { UUID_SERVICE = UUID.fromString(UUID_service); UUID_CHARACTERISTIC = UUID.fromString(UUID_characteristic); BluetoothDevice device = mBluetoothAdapter.getRemoteDevice(bluetoothAddress); if (mBluetoothGatt != null) { mBluetoothGatt.close(); mBluetoothGatt = null; } mBluetoothGatt = device.connectGatt(mContext, true, callback); this.onDataChangeListener = onDataChangeListener; } /* 数据变化监听器 */ public interface OnDataChangeListener { /** * 当数据变化时返回 * @param data 数据 */ void onDataChange(String data); /** * 当状态变化时返回 * @param state 状态 */ void onStateChange(String state); } }

代码中注释的很详细,直接拿来用就好

这是我照着官方Demo写的,用上面那个类 源码 空间用完了,百度云失效的话提醒我一下 百度云:https://pan.baidu.com/s/1c2xGKes

最后,本人只是android开发的一个萌新,有什么地方有错误或者要改的希望大家在评论区进行指出