andriod studio写一个蓝牙遥控器程序
时间: 2023-11-29 22:05:28 浏览: 148
Android studio蓝牙遥控
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好的,下面是一个简单的蓝牙遥控器应用程序的开发步骤:
1. 首先,你需要在 Android Studio 中创建一个新的项目,并添加蓝牙权限到 AndroidManifest.xml 文件中:
```
<uses-permission android:name="android.permission.BLUETOOTH" />
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
```
2. 在 MainActivity 中,你需要添加一个按钮,并在按钮的点击事件中打开蓝牙:
```
Button btnEnableBluetooth = findViewById(R.id.btnEnableBluetooth);
btnEnableBluetooth.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
BluetoothAdapter bluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
if (bluetoothAdapter == null) {
// Device doesn't support Bluetooth
} else if (!bluetoothAdapter.isEnabled()) {
Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
startActivityForResult(enableBtIntent, REQUEST_ENABLE_BT);
}
}
});
```
3. 接下来,你需要添加一个搜索设备的按钮,并在按钮的点击事件中启动一个 Intent,打开设备搜索页面:
```
Button btnSearchDevices = findViewById(R.id.btnSearchDevices);
btnSearchDevices.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(MainActivity.this, DeviceListActivity.class);
startActivityForResult(intent, REQUEST_CONNECT_DEVICE);
}
});
```
4. 在 DeviceListActivity 中,你需要列出所有可用的蓝牙设备,并在用户点击列表项时返回设备地址:
```
private void setupDevices() {
BluetoothAdapter bluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
Set<BluetoothDevice> pairedDevices = bluetoothAdapter.getBondedDevices();
for (BluetoothDevice device : pairedDevices) {
mDeviceArrayAdapter.add(device.getName() + "\n" + device.getAddress());
}
lvDevices.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
String deviceInfo = (String) parent.getItemAtPosition(position);
String deviceAddress = deviceInfo.substring(deviceInfo.length() - 17);
Intent intent = new Intent();
intent.putExtra(EXTRA_DEVICE_ADDRESS, deviceAddress);
setResult(Activity.RESULT_OK, intent);
finish();
}
});
}
```
5. 在 MainActivity 中,你需要连接到设备,并发送数据:
```
private void connectToDevice(String address) {
BluetoothAdapter bluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
BluetoothDevice device = bluetoothAdapter.getRemoteDevice(address);
try {
mBluetoothSocket = device.createRfcommSocketToServiceRecord(MY_UUID);
mBluetoothSocket.connect();
mOutputStream = mBluetoothSocket.getOutputStream();
} catch (IOException e) {
e.printStackTrace();
}
}
private void sendData(String data) {
try {
mOutputStream.write(data.getBytes());
} catch (IOException e) {
e.printStackTrace();
}
}
```
这就是一个简单的蓝牙遥控器应用程序的开发过程。当然,这只是一个基础框架,你可以根据自己的需求进行修改和扩展。
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