private BluetoothServer.OnAcceptListener onAcceptListener = new BluetoothServer.OnAcceptListener() { @SuppressLint("MissingPermission") @Override public void onAccepted(BluetoothSocket socket) { btManager = new BluetoothManager(socket); btManager.setServer(true); btManager.setOnReceivedListener(onReceivedListener); btManager.setOnEventListener(onEventListener); Toast.makeText(MainActivity.this,"收到一个蓝牙连接!",Toast.LENGTH_LONG).show(); setTitle("蓝牙连接到:" + btManager.getRemoteName()); if(bluetoothAddress == null){ BluetoothAdapter bluetoothAdapter = BluetoothAdapter.getDefaultAdapter(); bluetoothAddress = bluetoothAdapter.getAddress(); } refreshData(); } };
时间: 2024-02-14 19:20:26 浏览: 18
这段代码是关于蓝牙连接的,具体来说是在Android的MainActivity中创建了一个蓝牙服务器,并设置了一个OnAcceptListener监听器来监听是否有客户端连接。当有客户端连接时,会创建一个BluetoothManager对象,设置一些监听器,并显示一个Toast提示收到了蓝牙连接。同时,会将蓝牙连接的远程名称设置为MainActivity的标题,并更新数据。请问这段代码中的BluetoothManager是什么?
相关问题
// 初始化service // gatt 回调 GattCallback.Refresh f = new GattCallback.Refresh() { private static final String TAG = "GattCallback Gatt"; @Override public void OperationCv(BluetoothGattCharacteristic cvRead, BluetoothGattCharacteristic cvWrite, BluetoothGattCharacteristic cvConfig) { } @Override public void Operation(boolean isRead, boolean isWrite, boolean isConfig) { // 更新操作界面 showOpView(isRead, isWrite); }解释代码
这段代码是一个Bluetooth GATT(Generic Attribute Profile)回调的实现示例。
首先,它包含一个GattCallback.Refresh接口实现,其中Refresh是自定义的接口名。在此代码中,该接口包含两个方法:
1. OperationCv(BluetoothGattCharacteristic cvRead, BluetoothGattCharacteristic cvWrite, BluetoothGattCharacteristic cvConfig)
其中,cvRead、cvWrite和cvConfig都是BluetoothGattCharacteristic类型的参数。这个方法看起来是空的,没有实现任何功能,但可能在某些情况下需要覆盖它。
2. Operation(boolean isRead, boolean isWrite, boolean isConfig)
这个方法包含三个布尔类型的参数:isRead、isWrite和isConfig。这些参数表示是否支持读、写和配置操作。然后,这个方法会调用showOpView(isRead, isWrite)方法来更新操作界面。
总体而言,这段代码是在初始化Bluetooth GATT服务,并实现了一个自定义的GattCallback.Refresh接口,以便在进行读写和配置操作时更新操作界面。
来一个com.bitalino.bitalinodroid的java程序
以下是一个使用com.bitalino.bitalinodroid库的Java程序,它可以连接到Bitalino设备并读取其传感器数据:
```java
import android.os.Bundle;
import android.app.Activity;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.content.Context;
import android.content.Intent;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Toast;
import com.bitalino.BITalinoDevice;
import com.bitalino.BITalinoFrame;
import com.bitalino.BITalinoState;
import com.bitalino.comm.BITalinoAndroidDevice;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Set;
public class MainActivity extends Activity {
private BluetoothAdapter mBluetoothAdapter;
private ArrayAdapter<String> mPairedDevicesArrayAdapter;
private BITalinoAndroidDevice mDevice;
private Thread mThread;
private boolean mRunning = false;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mPairedDevicesArrayAdapter = new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1);
ListView pairedListView = (ListView) findViewById(R.id.paired_devices);
pairedListView.setAdapter(mPairedDevicesArrayAdapter);
mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
if (mBluetoothAdapter == null) {
Toast.makeText(this, "Bluetooth is not available", Toast.LENGTH_LONG).show();
finish();
return;
}
if (!mBluetoothAdapter.isEnabled()) {
Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
startActivityForResult(enableBtIntent, 1);
} else {
showPairedDevices();
}
}
private void showPairedDevices() {
Set<BluetoothDevice> pairedDevices = mBluetoothAdapter.getBondedDevices();
if (pairedDevices.size() > 0) {
for (BluetoothDevice device : pairedDevices) {
mPairedDevicesArrayAdapter.add(device.getName() + "\n" + device.getAddress());
}
} else {
mPairedDevicesArrayAdapter.add("No paired devices found");
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.action_refresh:
mPairedDevicesArrayAdapter.clear();
showPairedDevices();
return true;
case R.id.action_connect:
connectToDevice();
return true;
case R.id.action_disconnect:
disconnectFromDevice();
return true;
default:
return super.onOptionsItemSelected(item);
}
}
private void connectToDevice() {
String deviceAddress = mPairedDevicesArrayAdapter.getItem(0).substring(17);
BluetoothDevice device = mBluetoothAdapter.getRemoteDevice(deviceAddress);
try {
mDevice = new BITalinoAndroidDevice(device);
mDevice.open();
mDevice.start();
mRunning = true;
mThread = new Thread(new Runnable() {
@Override
public void run() {
while (mRunning) {
try {
BITalinoFrame[] frames = mDevice.read(1000);
for (BITalinoFrame frame : frames) {
System.out.println(frame.toString());
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
});
mThread.start();
} catch (IOException e) {
e.printStackTrace();
}
}
private void disconnectFromDevice() {
mRunning = false;
try {
mDevice.stop();
mDevice.close();
} catch (IOException e) {
e.printStackTrace();
}
}
@Override
protected void onDestroy() {
super.onDestroy();
disconnectFromDevice();
}
}
```
请注意,您需要在Android设备上安装BitalinoDroid应用程序并将其连接到Bitalino设备才能使用此程序。此外,您可能需要根据您的设备和传感器配置调整代码。在此示例中,我们只是将Bitalino帧打印到控制台。你可以根据需要在此基础上进行扩展。