android蓝牙遥控器手机与蓝牙模块通讯代码样例
时间: 2023-09-18 17:06:46 浏览: 70
好的,请参考以下代码样例:
1. 初始化蓝牙适配器并扫描周围的蓝牙设备:
```java
BluetoothAdapter bluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
if (bluetoothAdapter == null) {
// 设备不支持蓝牙
return;
}
if (!bluetoothAdapter.isEnabled()) {
// 蓝牙未开启
return;
}
// 开始扫描周围的蓝牙设备
bluetoothAdapter.startDiscovery();
// 注册广播接收器,监听蓝牙设备的发现和连接状态变化
IntentFilter filter = new IntentFilter();
filter.addAction(BluetoothDevice.ACTION_FOUND);
filter.addAction(BluetoothAdapter.ACTION_DISCOVERY_FINISHED);
filter.addAction(BluetoothDevice.ACTION_ACL_CONNECTED);
filter.addAction(BluetoothDevice.ACTION_ACL_DISCONNECTED);
registerReceiver(receiver, filter);
```
2. 监听蓝牙设备的发现和连接状态变化,获取到目标蓝牙设备后建立连接:
```java
private BroadcastReceiver receiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (BluetoothDevice.ACTION_FOUND.equals(action)) {
// 获取到周围的蓝牙设备
BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
if ("目标设备名称".equals(device.getName())) {
// 停止扫描
bluetoothAdapter.cancelDiscovery();
// 建立与目标蓝牙设备的连接
ConnectThread connectThread = new ConnectThread(device);
connectThread.start();
}
} else if (BluetoothAdapter.ACTION_DISCOVERY_FINISHED.equals(action)) {
// 停止扫描
} else if (BluetoothDevice.ACTION_ACL_CONNECTED.equals(action)) {
// 蓝牙设备已连接
} else if (BluetoothDevice.ACTION_ACL_DISCONNECTED.equals(action)) {
// 蓝牙设备已断开连接
}
}
};
private class ConnectThread extends Thread {
private final BluetoothSocket socket;
private final BluetoothDevice device;
public ConnectThread(BluetoothDevice device) {
BluetoothSocket tmpSocket = null;
this.device = device;
try {
tmpSocket = device.createRfcommSocketToServiceRecord(MY_UUID);
} catch (IOException e) {
e.printStackTrace();
}
socket = tmpSocket;
}
public void run() {
bluetoothAdapter.cancelDiscovery();
try {
socket.connect();
// 连接成功,可以进行数据的读写操作
ConnectedThread connectedThread = new ConnectedThread(socket);
connectedThread.start();
} catch (IOException e) {
e.printStackTrace();
try {
socket.close();
} catch (IOException e1) {
e1.printStackTrace();
}
}
}
public void cancel() {
try {
socket.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
```
3. 在连接成功后使用OutputStream类将数据写入到BluetoothSocket中发送:
```java
private class ConnectedThread extends Thread {
private final BluetoothSocket socket;
private final OutputStream outputStream;
public ConnectedThread(BluetoothSocket socket) {
this.socket = socket;
OutputStream tmpOutputStream = null;
try {
tmpOutputStream = socket.getOutputStream();
} catch (IOException e) {
e.printStackTrace();
}
outputStream = tmpOutputStream;
}
public void run() {
// 将需要发送的数据转为字节数组
byte[] data = "需要发送的数据".getBytes();
try {
// 使用OutputStream类将数据写入到BluetoothSocket中发送
outputStream.write(data);
} catch (IOException e) {
e.printStackTrace();
}
}
public void cancel() {
try {
socket.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
```
以上就是一个简单的Android蓝牙遥控器手机与蓝牙模块通讯的代码样例,具体实现还需要根据实际需求进行调整和完善。
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