import android.bluetooth.BluetoothAdapter; import android.bluetooth.BluetoothDevice; import android.bluetooth.BluetoothSocket; import android.os.Handler; import android.os.Message; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.util.UUID; public class bluetoothController { private BluetoothAdapter mBluetoothAdapter; private BluetoothSocket mBluetoothSocket; private InputStream mInputStream; private OutputStream mOutputStream; private Handler mHandler; public bluetoothController(Handler handler) { mHandler = handler; mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter(); } public boolean connect(String address) { BluetoothDevice device = mBluetoothAdapter.getRemoteDevice(address); UUID uuid = UUID.fromString("00001101-0000-1000-8000-00805F9B34FB"); try { mBluetoothSocket = device.createRfcommSocketToServiceRecord(uuid); mBluetoothSocket.connect(); mInputStream = mBluetoothSocket.getInputStream(); mOutputStream = mBluetoothSocket.getOutputStream(); return true; } catch (IOException e) { e.printStackTrace(); return false; } } public void disconnect() { try { mBluetoothSocket.close(); } catch (IOException e) { e.printStackTrace(); } } public void write(byte[] bytes) { try { mOutputStream.write(bytes); } catch (IOException e) { e.printStackTrace(); } } public void read() { byte[] buffer = new byte[1024]; int bytes; while (true) { try { bytes = mInputStream.read(buffer); String message = new String(buffer, 0, bytes); Message msg = mHandler.obtainMessage(0, message); mHandler.sendMessage(msg); } catch (IOException e) { e.printStackTrace(); break; } } } }
时间: 2023-05-17 21:07:55 浏览: 229
这是一个蓝牙控制器的 Java 类,它可以连接到指定的蓝牙设备并发送和接收数据。它使用 BluetoothAdapter、BluetoothDevice 和 BluetoothSocket 类来管理蓝牙连接,使用 InputStream 和 OutputStream 类来读写数据。它还使用 Handler 和 Message 类来处理接收到的数据。如果你有任何关于这个类的问题,可以继续问我。
相关问题
Android BLUETOOTH_CONNECT
在Android开发中,BLUETOOTH_CONNECT是指通过蓝牙技术实现设备之间的连接和数据传输。蓝牙是一种无线技术标准,用于在固定设备、移动设备和建筑个人区域网络(PAN)之间交换数据。
以下是实现Android蓝牙连接的基本步骤:
1. **获取蓝牙适配器**:
首先,需要获取设备的蓝牙适配器。蓝牙适配器是管理蓝牙功能的中心类。
```java
BluetoothAdapter bluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
if (bluetoothAdapter == null) {
// 设备不支持蓝牙
}
```
2. **启用蓝牙**:
如果蓝牙未启用,需要请求用户启用蓝牙。
```java
if (!bluetoothAdapter.isEnabled()) {
Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
startActivityForResult(enableBtIntent, REQUEST_ENABLE_BT);
}
```
3. **查找设备**:
查找附近的蓝牙设备。
```java
Set<BluetoothDevice> pairedDevices = bluetoothAdapter.getBondedDevices();
if (pairedDevices.size() > 0) {
for (BluetoothDevice device : pairedDevices) {
String deviceName = device.getName();
String deviceHardwareAddress = device.getAddress(); // MAC address
}
}
```
4. **建立连接**:
使用BluetoothSocket建立连接。
```java
BluetoothDevice device = bluetoothAdapter.getRemoteDevice(address);
BluetoothSocket socket = device.createRfcommSocketToServiceRecord(MY_UUID);
bluetoothAdapter.cancelDiscovery();
socket.connect();
```
5. **数据传输**:
通过输入输出流进行数据传输。
```java
InputStream tmpIn = null;
OutputStream tmpOut = null;
try {
tmpIn = socket.getInputStream();
tmpOut = socket.getOutputStream();
} catch (IOException e) { }
while (true) {
try {
int bytes = tmpIn.read(buffer);
handler.obtainMessage(READ_MESSAGE, bytes, -1, buffer).sendToTarget();
} catch (IOException e) {
break;
}
}
```
6. **关闭连接**:
关闭连接以释放资源。
```java
try {
socket.close();
} catch (IOException e) { }
```
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