android 蓝牙隐藏对话框 后台配对

 static public boolean createBond(Class btClass, BluetoothDevice btDevice)
throws Exception {
Method createBondMethod = btClass.getMethod("createBond");
Log.i("life", "createBondMethod = " + createBondMethod.getName());
Boolean returnValue = (Boolean) createBondMethod.invoke(btDevice);
return returnValue.booleanValue();
}

static public boolean setPin(Class btClass, BluetoothDevice btDevice,
String str) throws Exception {
Boolean returnValue = null;
try {
Method removeBondMethod = btClass.getDeclaredMethod("setPin",
new Class[] { byte[].class });
returnValue = (Boolean) removeBondMethod.invoke(btDevice,
new Object[] { str.getBytes() });
Log.i("life", "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 returnValue;
}

// 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);
Log.i("life", "cancelPairingUserInputreturnValue = " + returnValue);
return returnValue.booleanValue();
}

     然后监听蓝牙配对的广播  匹配“android.bluetooth.device.action.PAIRING_REQUEST”这个action

  然后分辨调用上面的setPin(mDevice.getClass(), mDevice, "1234"); // 手机和蓝牙采集器配对
createBond(mDevice.getClass(), mDevice);
cancelPairingUserInput(mDevice.getClass(), mDevice);

   其中上面的mDevice是你要去连接的那个蓝牙的对象 ， 1234为配对的pin码