android studio蓝牙连接代码
时间: 2023-06-28 07:12:25 浏览: 56
以下是Android Studio中蓝牙连接的基本代码示例:
1. 确定权限
在AndroidManifest.xml文件中添加以下权限:
```xml
<uses-permission android:name="android.permission.BLUETOOTH"/>
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN"/>
```
2. 扫描设备
```java
private BluetoothAdapter mBluetoothAdapter;
private ArrayList<BluetoothDevice> mDeviceList = new ArrayList<>();
private BluetoothAdapter.LeScanCallback mLeScanCallback;
mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
mLeScanCallback = new BluetoothAdapter.LeScanCallback() {
@Override
public void onLeScan(BluetoothDevice device, int rssi, byte[] scanRecord) {
if (!mDeviceList.contains(device)) {
mDeviceList.add(device);
}
}
};
mBluetoothAdapter.startLeScan(mLeScanCallback);
```
3. 连接设备
```java
private BluetoothDevice mBluetoothDevice;
private BluetoothSocket mBluetoothSocket;
mBluetoothDevice = mDeviceList.get(position);
mBluetoothSocket = mBluetoothDevice.createRfcommSocketToServiceRecord(UUID.fromString("00001101-0000-1000-8000-00805F9B34FB"));
mBluetoothSocket.connect();
```
4. 发送和接收数据
```java
private OutputStream mOutputStream;
private InputStream mInputStream;
mOutputStream = mBluetoothSocket.getOutputStream();
mInputStream = mBluetoothSocket.getInputStream();
// 发送数据
byte[] data = "Hello, Bluetooth!".getBytes();
mOutputStream.write(data);
// 接收数据
byte[] buffer = new byte[1024];
int len = mInputStream.read(buffer);
String msg = new String(buffer, 0, len);
```
请注意,这只是基本的代码示例,实际应用中需要处理连接状态、异常情况等。
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