Android 蓝牙自动配对连接

蓝牙工具类：

public class BTReceiverUtils {    /**     * 与设备配对     */    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     */    static public boolean removeBond(Class<?> btClass, BluetoothDevice btDevice) throws Exception {        Method removeBondMethod = btClass.getMethod("removeBond");        Boolean returnValue = (Boolean) removeBondMethod.invoke(btDevice);        return returnValue.booleanValue();    }    /**     * 进行配对     */    static public boolean setPin(Class<? extends BluetoothDevice> 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)        {            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");        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();    }    /**     * 确认配对     */    static public void setPairingConfirmation(Class<?> btClass,BluetoothDevice device,boolean isConfirm)throws Exception {        Method setPairingConfirmation = btClass.getDeclaredMethod("setPairingConfirmation",boolean.class);        setPairingConfirmation.invoke(device,isConfirm);    }}

蓝牙搜索连接：
（默认以 0000 pin连接，不需要用户输入）

    private BTReceiverAdapter btReceiverAdapter;    private LinearLayoutManager linearLayoutManager;    private BluetoothAdapter mBluetoothAdapter;    private IntentFilter mFilter;    private BluetoothDevice mBluetoothDevice;//搜索出来的    /**     * 需要连接的蓝牙设备     */    private BluetoothDevice bluetoothDevice; //选择的设备    private SharedPreferences sharedPreferences;    private int clickSelect;//选择的蓝牙设备在列表中的位置    private List bluetoothDeviceList = new ArrayList<>();//搜索出的设备集合    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.leftmenu_btreceiver);        ButterKnife.bind(this);        sharedPreferences = getApplicationContext().getSharedPreferences(UserInfoConstant.USERINFO_SHREDPREFERENCE, Context.MODE_PRIVATE);        initPairingInfo();    }    /**     * 填充已配对蓝牙设备信息     */    private void initPairingInfo() {        leftmenuBtreceiverName.setText(SharedPreferencesUtil.getSharedPreferences(this, UserInfoConstant.USERINFO_SHREDPREFERENCE, UserInfoConstant.USERINFO_BLUETOOTHNAME));        leftmenuBtreceiverId.setText(SharedPreferencesUtil.getSharedPreferences(this, UserInfoConstant.USERINFO_SHREDPREFERENCE, UserInfoConstant.USERINFO_BLUETOOTHID));    }    @OnClick({R.id.leftmenu_btreceiver_back, R.id.leftmenu_btreceiver_scan})    public void onViewClicked(View view) {        switch (view.getId()) {            case R.id.leftmenu_btreceiver_back:                finish();                break;            case R.id.leftmenu_btreceiver_scan:                methodRequiresTwoPermission();                break;        }    }    /**     * 检测是否有蓝牙权限和模糊定位权限     */    private void methodRequiresTwoPermission() {        String[] perms = {Manifest.permission.BLUETOOTH, Manifest.permission.BLUETOOTH_ADMIN, Manifest.permission.ACCESS_COARSE_LOCATION};        if (EasyPermissions.hasPermissions(this, perms)) {            inspect();        } else {            EasyPermissions.requestPermissions(this, getString(R.string.permissions_hint), 0, perms);        }    }    /**     * 蓝牙是否开启，未开启则提示用户，开启则弹出选择框     */    private void inspect() {        mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();        if (mBluetoothAdapter.isEnabled()) {            /**注册搜索蓝牙receiver*/            mFilter = new IntentFilter(BluetoothAdapter.ACTION_DISCOVERY_FINISHED);            mFilter.addAction(BluetoothDevice.ACTION_FOUND);            mFilter.addAction(BluetoothDevice.ACTION_BOND_STATE_CHANGED);            mFilter.addAction("android.bluetooth.device.action.PAIRING_REQUEST");            bluetoothDeviceList.clear();            registerReceiver(mReceiver, mFilter);            mBluetoothAdapter.startDiscovery();            scanDialog();        } else {            Toast.makeText(this, R.string.BTReceiverActivity_open_hint, Toast.LENGTH_SHORT).show();        }    }    /**     * 点击扫描弹出框     */    private void scanDialog() {        AlertDialog.Builder builder = new AlertDialog.Builder(this);        LinearLayout scanDialog = (LinearLayout) getLayoutInflater().inflate(R.layout.leftmenu_btreceiver_popup, null);        builder.setView(scanDialog);        builder.setCancelable(false);        final AlertDialog dialog = builder.create();        dialog.show();        Button cancel = scanDialog.findViewById(R.id.leftmenu_btreceiver_popup_cancel);        cancel.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View view) {                mBluetoothAdapter.cancelDiscovery();                dialog.cancel();            }        });        RecyclerView deviceRecycler = scanDialog.findViewById(R.id.leftmenu_btreceiver_popup_device);        linearLayoutManager = new LinearLayoutManager(this);        deviceRecycler.setLayoutManager(linearLayoutManager);        deviceRecycler.setHasFixedSize(true);        btReceiverAdapter = new BTReceiverAdapter(bluetoothDeviceList);        deviceRecycler.setAdapter(btReceiverAdapter);        btReceiverAdapter.setOnItemClickListener(new BaseQuickAdapter.OnItemClickListener() {            @Override            public void onItemClick(BaseQuickAdapter adapter, View view, int position) {                Log.d(TAG, "onItemClick: " + position);                clickSelect = position;                mBluetoothAdapter.cancelDiscovery();                dialog.cancel();                pairing();            }        });    }    /**     * 进行检测配对操作     */    private void pairing() {        //判断是否已经配对        if (bluetoothDeviceList.get(clickSelect).getBondState() == BluetoothDevice.BOND_BONDED) {            // 保存            Log.d(TAG, "已配对： " + bluetoothDeviceList.get(clickSelect).getName());            Toast.makeText(BTReceiverActivity.this, R.string.BTReceiverActivity_pairing_succeed, Toast.LENGTH_SHORT).show();            SharedPreferences.Editor edt = sharedPreferences.edit();            edt.putString(UserInfoConstant.USERINFO_BLUETOOTHNAME, bluetoothDeviceList.get(clickSelect).getName());            edt.putString(UserInfoConstant.USERINFO_BLUETOOTHID, bluetoothDeviceList.get(clickSelect).getAddress());            edt.apply();            initPairingInfo();        } else {            // 进行配对            try {                BTReceiverUtils.createBond(bluetoothDeviceList.get(clickSelect).getClass(), bluetoothDeviceList.get(clickSelect));            } catch (Exception e) {                e.printStackTrace();            }        }    }    /**     * 处理广播     */    private BroadcastReceiver mReceiver = new BroadcastReceiver() {        @Override        public void onReceive(Context context, Intent intent) {            String action = intent.getAction();            /** 搜索到的蓝牙设备*/            if (action.equals(BluetoothDevice.ACTION_FOUND)) {                mBluetoothDevice = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);                bluetoothDeviceList.add(mBluetoothDevice);                Log.d("mReceiver", "search......" + mBluetoothDevice.getName());                btReceiverAdapter.notifyDataSetChanged();            } else if (action.equals("android.bluetooth.device.action.PAIRING_REQUEST")) {                /** 配对 */                Log.d(TAG, "getDeviceName； " + bluetoothDeviceList.get(clickSelect).getName());                bluetoothDevice = bluetoothDeviceList.get(clickSelect);                Log.d(TAG, "bluetoothDevice.getName : " + bluetoothDevice.getName());                try {                    //终止有序广播                    mReceiver.abortBroadcast();//如果没有将广播终止，则会出现一个一闪而过的配对框。                    //调用setPin方法进行配对...                    boolean ret = BTReceiverUtils.setPin(bluetoothDevice.getClass(), bluetoothDevice, ModelConstants.BLUETOOTH_PIN);                    //确认配对                    BTReceiverUtils.setPairingConfirmation(bluetoothDevice.getClass(), bluetoothDevice, true);                    //取消用户输入                    BTReceiverUtils.cancelPairingUserInput(bluetoothDevice.getClass(), bluetoothDevice);                    Log.d("pairing", "ret: " + ret + "  name" + bluetoothDevice.getName() + " address " + bluetoothDevice.getAddress());                    if (ret) {                        saveBluetoothDevice();                    } else {                        Toast.makeText(BTReceiverActivity.this, R.string.BTReceiverActivity_pairing_failure, Toast.LENGTH_SHORT).show();                    }                } catch (Exception e) {                    e.printStackTrace();                }            } else if (BluetoothDevice.ACTION_BOND_STATE_CHANGED.equals(action)) {                switch (mBluetoothDevice.getBondState()) {                    case BluetoothDevice.BOND_BONDING://正在配对                        Log.d(TAG, "正在配对......");                        break;                    case BluetoothDevice.BOND_BONDED://配对结束                        Log.d(TAG, "完成配对");                        saveBluetoothDevice();                        break;                    case BluetoothDevice.BOND_NONE://取消配对/未配对                        if (bluetoothDevice.getName().contains("Bluetooth Rec")){                            saveBluetoothDevice();                        }                    default:                        break;                }            }        }    };    /**     * 保存配对     */    private void saveBluetoothDevice(){        Toast.makeText(BTReceiverActivity.this, R.string.BTReceiverActivity_pairing_succeed, Toast.LENGTH_SHORT).show();        SharedPreferences.Editor edt = sharedPreferences.edit();        edt.putString(UserInfoConstant.USERINFO_BLUETOOTHNAME, bluetoothDevice.getName());        edt.putString(UserInfoConstant.USERINFO_BLUETOOTHID, bluetoothDevice.getAddress());        edt.apply();        initPairingInfo();    }    @Override    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {        super.onRequestPermissionsResult(requestCode, permissions, grantResults);        //把申请权限的回调交由EasyPermissions处理        EasyPermissions.onRequestPermissionsResult(requestCode, permissions, grantResults, this);    }    @Override    public void onPermissionsGranted(int requestCode, List perms) {        inspect();    }    @Override    public void onPermissionsDenied(int requestCode, List perms) {        Toast.makeText(this, getString(R.string.permissions_hint), Toast.LENGTH_SHORT).show();    }}

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