如何实现android蓝牙开发 自动配对连接,并不弹出提示框

之前做一个android版的蓝牙 与血压计通讯的项目，遇到最大的难题就是自动配对.

上网查资料说是用反射createBond（）和setPin（），但测试时进行配对还是会出现提示，但配对是成功了

我就开始查找怎么关闭这个蓝牙配对提示框，后面还是伟大的android源码帮助了我。

在源码 BluetoothDevice 类中还有两个隐藏方法

cancelBondProcess（）和cancelPairingUserInput（）

这两个方法一个是取消配对进程一个是取消用户输入

下面是自动配对的代码

Mainfest,xml注册

<receiver android:name=".BluetoothConnectActivityReceiver" >
    <intent-filter>
        <action android:name="android.bluetooth.device.action.PAIRING_REQUEST" />
    </intent-filter>
</receiver>
自己在收到广播时处理并将预先输入的密码设置进去

public class BluetoothConnectActivityReceiver extends BroadcastReceiver
{

    String strPsw = "0";

    @Override
    public void onReceive(Context context, Intent intent)
    {
        // TODO Auto-generated method stub
        if (intent.getAction().equals(
                "android.bluetooth.device.action.PAIRING_REQUEST"))
        {
            BluetoothDevice btDevice = intent
                    .getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);

            // byte[] pinBytes = BluetoothDevice.convertPinToBytes("1234");
            // device.setPin(pinBytes);
            Log.i("tag11111", "ddd");
            try
            {
                ClsUtils.setPin(btDevice.getClass(), btDevice, strPsw); // 手机和蓝牙采集器配对
                ClsUtils.createBond(btDevice.getClass(), btDevice);
                ClsUtils.cancelPairingUserInput(btDevice.getClass(), btDevice);
            }
            catch (Exception e)
            {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }

    }
}

/************************************ 蓝牙配对函数 * **************/
import java.lang.reflect.Field;
import java.lang.reflect.Method;

import android.bluetooth.BluetoothDevice;
import android.util.Log;
public class ClsUtils
{

    /**
     * 与设备配对 参考源码：platform/packages/apps/Settings.git
     * /Settings/src/com/android/settings/bluetooth/CachedBluetoothDevice.java
     */
    static public boolean createBond(Class btClass, BluetoothDevice btDevice)
            throws Exception
    {
        Method createBondMethod = btClass.getMethod("createBond");
        Boolean returnValue = (Boolean) createBondMethod.invoke(btDevice);
        return returnValue.booleanValue();
    }

    /**
     * 与设备解除配对 参考源码：platform/packages/apps/Settings.git
     * /Settings/src/com/android/settings/bluetooth/CachedBluetoothDevice.java
     */
    static public boolean removeBond(Class btClass, BluetoothDevice btDevice)
            throws Exception
    {
        Method removeBondMethod = btClass.getMethod("removeBond");
        Boolean returnValue = (Boolean) removeBondMethod.invoke(btDevice);
        return returnValue.booleanValue();
    }

    static public boolean setPin(Class btClass, BluetoothDevice btDevice,
            String str) throws Exception
    {
        try
        {
            Method removeBondMethod = btClass.getDeclaredMethod("setPin",
                    new Class[]
                    {byte[].class});
            Boolean returnValue = (Boolean) removeBondMethod.invoke(btDevice,
                    new Object[]
                    {str.getBytes()});
            Log.e("returnValue", "" + returnValue);
        }
        catch (SecurityException e)
        {
            // throw new RuntimeException(e.getMessage());
            e.printStackTrace();
        }
        catch (IllegalArgumentException e)
        {
            // throw new RuntimeException(e.getMessage());
            e.printStackTrace();
        }
        catch (Exception e)
        {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return true;

    }

    // 取消用户输入
    static public boolean cancelPairingUserInput(Class btClass,
            BluetoothDevice device)

    throws Exception
    {
        Method createBondMethod = btClass.getMethod("cancelPairingUserInput");
        // cancelBondProcess()
        Boolean returnValue = (Boolean) createBondMethod.invoke(device);
        return returnValue.booleanValue();
    }

    // 取消配对
    static public boolean cancelBondProcess(Class btClass,
            BluetoothDevice device)

    throws Exception
    {
        Method createBondMethod = btClass.getMethod("cancelBondProcess");
        Boolean returnValue = (Boolean) createBondMethod.invoke(device);
        return returnValue.booleanValue();
    }

    /**
     *
     * @param clsShow
     */
    static public void printAllInform(Class clsShow)
    {
        try
        {
            // 取得所有方法
            Method[] hideMethod = clsShow.getMethods();
            int i = 0;
            for (; i < hideMethod.length; i++)
            {
                Log.e("method name", hideMethod[i].getName() + ";and the i is:"
                        + i);
            }
            // 取得所有常量
            Field[] allFields = clsShow.getFields();
            for (i = 0; i < allFields.length; i++)
            {
                Log.e("Field name", allFields[i].getName());
            }
        }
        catch (SecurityException e)
        {
            // throw new RuntimeException(e.getMessage());
            e.printStackTrace();
        }
        catch (IllegalArgumentException e)
        {
            // throw new RuntimeException(e.getMessage());
            e.printStackTrace();
        }
        catch (Exception e)
        {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
}
 执行时直接使用：

public static boolean pair(String strAddr, String strPsw)
    {
        boolean result = false;
        BluetoothAdapter bluetoothAdapter = BluetoothAdapter
                .getDefaultAdapter();

        bluetoothAdapter.cancelDiscovery();

        if (!bluetoothAdapter.isEnabled())
        {
            bluetoothAdapter.enable();
        }

        if (!BluetoothAdapter.checkBluetoothAddress(strAddr))
        { // 检查蓝牙地址是否有效

            Log.d("mylog", "devAdd un effient!");
        }

        BluetoothDevice device = bluetoothAdapter.getRemoteDevice(strAddr);

        if (device.getBondState() != BluetoothDevice.BOND_BONDED)
        {
            try
            {
                Log.d("mylog", "NOT BOND_BONDED");
                ClsUtils.setPin(device.getClass(), device, strPsw); // 手机和蓝牙采集器配对
                ClsUtils.createBond(device.getClass(), device);
                remoteDevice = device; // 配对完毕就把这个设备对象传给全局的remoteDevice
                result = true;
            }
            catch (Exception e)
            {
                // TODO Auto-generated catch block

                Log.d("mylog", "setPiN failed!");
                e.printStackTrace();
            } //

        }
        else
        {
            Log.d("mylog", "HAS BOND_BONDED");
            try
            {
                ClsUtils.createBond(device.getClass(), device);
                ClsUtils.setPin(device.getClass(), device, strPsw); // 手机和蓝牙采集器配对
                ClsUtils.createBond(device.getClass(), device);
                remoteDevice = device; // 如果绑定成功，就直接把这个设备对象传给全局的remoteDevice
                result = true;
            }
            catch (Exception e)
            {
                // TODO Auto-generated catch block
                Log.d("mylog", "setPiN failed!");
                e.printStackTrace();
            }
        }
        return result;
    }