android 传统蓝牙开发

最新推荐文章于 2025-07-04 20:18:23 发布

qq_34308292

最新推荐文章于 2025-07-04 20:18:23 发布

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CC 4.0 BY-SA版权

文章标签： android 蓝牙

本文链接：https://blog.youkuaiyun.com/qq_34308292/article/details/78665603

本文介绍了Android平台上进行传统蓝牙的开发步骤，包括获取蓝牙适配器、开启和关闭蓝牙、监听蓝牙状态变化、设备绑定配对、获取已绑定设备以及详细阐述了如何在设备配对后建立蓝牙链接。虽然未涉及传统蓝牙的数据传输，但提到了BLE蓝牙的链接和数据传输经验。

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1.获得蓝牙适配器

mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();

2.蓝牙的打开和关闭

if (!mBluetoothAdapter.isEnabled()) {
    new Thread(new Runnable() {
        @Override
        public void run() {
            mBluetoothAdapter.enable();
        }
    }).start();
}

if (mBluetoothAdapter.isEnabled())
    mBluetoothAdapter.disable();

3.扫描蓝牙

if (mBluetoothAdapter.isDiscovering()) {
    mBluetoothAdapter.cancelDiscovery();
}
mBluetoothAdapter.startDiscovery();
Toast.makeText(getBaseContext(), "正在搜索设备......", Toast.LENGTH_SHORT).show();

4.蓝牙状态变化都会有广播

if (BluetoothAdapter.ACTION_STATE_CHANGED.equals(intent.getAction())) {//蓝牙状态改变
    Log.i("ACTION_STATE_CHANGED", "----------");
    setPairListView();
} else if (BluetoothDevice.ACTION_BOND_STATE_CHANGED.equals(intent.getAction())) {//绑定不同设备状态改变
    Log.i("BOND_STATE_CHANGED", "----------");
    if (device.getBondState() == BluetoothDevice.BOND_BONDED) {
        //如果绑定的设备跟点击的设备名称相同，表示配对成功，保存进蓝牙路径；
        if (device.getName().equals(mDevice)) {
            mFileStore.writeBluetooth(mDevice);
        }
        //更新mPairListView和mNewListView
        for (String s : mNewDatas) {
            if (s.equals(device.getName())) {
                mNewDatas.remove(s);
                setNewListView();
                setPairListView();
                return;
            }
        }
    }
    setPairListView();
} else if (BluetoothDevice.ACTION_FOUND.equals(intent.getAction())) {//搜索到设备
    Log.i("ACTION_FOUND", "----------");
    newDevices.add(device);
    if (device.getBondState() != BluetoothDevice.BOND_BONDED) {
        if (mNewDatas.size() > 0) {
            boolean exist = false;
            Log.i("aaa", "onReceive: " + mNewDatas.toString());
            for (String s : mNewDatas) {
                if (s.equals(device.getName())) {
                    exist = true;
                }
            }
            if (!exist) {
                mNewDatas.add(device.getName());
            }
        } else {
            mNewDatas.add(device.getName());
        }
        setNewListView();
    }
} else if (BluetoothAdapter.ACTION_DISCOVERY_STARTED.equals(intent.getAction())) {//搜索状态改变
    Log.i("DISCOVERY_STARTED", "----------");
    mNewDatas.clear();
    setNewListView();
}

5.绑定配对蓝牙

mDevice = mNewDatas.get(position);
if (mBluetoothAdapter.isDiscovering()) {
    mBluetoothAdapter.cancelDiscovery();
}
Toast.makeText(getBaseContext(), "正在配对......", Toast.LENGTH_SHORT).show();
for (BluetoothDevice device : newDevices) {
    if (device.getName().equals(mNewDatas.get(position))) {
        Log.i("mNewListView", "----------device.getName():" + device.getName());
        try {
            Method createBondMethod = BluetoothDevice.class.getMethod("createBond");
            createBondMethod.invoke(device);
        } catch (Exception  e) {
            e.printStackTrace();
        }
        return;
    }
}

6.获得已绑定的蓝牙

pairedDevices = mBluetoothAdapter.getBondedDevices();

7.链接蓝牙（）绑定蓝牙之后就是以配对蓝牙以配对蓝牙就可以链接了。）

//链接蓝牙设备
private void connectBluetooth(BluetoothDevice device) {
    // 固定的UUID
    final String SPP_UUID = "00001101-0000-1000-8000-00805F9B34FB";
    UUID uuid = UUID.fromString(SPP_UUID);
    try {
        device.createRfcommSocketToServiceRecord(uuid).connect();
    } catch (IOException e) {
        e.printStackTrace();
        runOnUiThread(new Runnable() {
            @Override
            public void run() {
                Toast.makeText(BluetoothActivity.this, "连接失败！", Toast.LENGTH_SHORT).show();
            }
        });
    }
}