不久前,我在尝试将蓝牙设备连接到安卓手机时遇到了类似的问题。尽管您的设备配置文件不同,但我认为解决方案是相同的。
首先,您需要在您的项目中创建一个名为的包,android.bluetooth
并将以下IBluetoothA2dp.aidl放入其中:
package android.bluetooth;
import android.bluetooth.BluetoothDevice;
/**
* System private API for Bluetooth A2DP service
*
* {@hide}
*/
interface IBluetoothA2dp {
boolean connectSink(in BluetoothDevice device);
boolean disconnectSink(in BluetoothDevice device);
boolean suspendSink(in BluetoothDevice device);
boolean resumeSink(in BluetoothDevice device);
BluetoothDevice[] getConnectedSinks();
BluetoothDevice[] getNonDisconnectedSinks();
int getSinkState(in BluetoothDevice device);
boolean setSinkPriority(in BluetoothDevice device, int priority);
int getSinkPriority(in BluetoothDevice device);
boolean connectSinkInternal(in BluetoothDevice device);
boolean disconnectSinkInternal(in BluetoothDevice device);
}
然后,要访问这些功能,请将以下类放入您的项目中:
public class BluetoothA2dpConnection {
private IBluetoothA2dp mService = null;
public BluetoothA2dpConnection() {
try {
Class<?> classServiceManager = Class.forName("android.os.ServiceManager");
Method methodGetService = classServiceManager.getMethod("getService", String.class);
IBinder binder = (IBinder) methodGetService.invoke(null, "bluetooth_a2dp");
mService = IBluetoothA2dp.Stub.asInterface(binder);
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (SecurityException e) {
e.printStackTrace();
} catch (NoSuchMethodException e) {
e.printStackTrace();
} catch (IllegalArgumentException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (InvocationTargetException e) {
e.printStackTrace();
}
}
public boolean connect(BluetoothDevice device) {
if (mService == null || device == null) {
return false;
}
try {
mService.connectSink(device);
} catch (RemoteException e) {
e.printStackTrace();
return false;
}
return true;
}
public boolean disconnect(BluetoothDevice device) {
if (mService == null || device == null) {
return false;
}
try {
mService.disconnectSink(device);
} catch (RemoteException e) {
e.printStackTrace();
return false;
}
return true;
}
}
最后,要连接您的 A2dp 设备,请从配对设备列表中选择一个 BluetoothDevice 并将其作为connect
方法参数发送。请务必选择具有正确配置文件的设备,否则您将遇到异常。
我已经在具有 android 版本 2.3 的手机中测试了这个解决方案,它运行良好。
对不起任何英语错误。我希望这可以帮助你。