可以使用以下代码示例获取设备ID：

import android.os.Build;
String deviceId = Build.SERIAL;

然而，从Android 10开始，应用程序无法访问非resettable标识符，例如设备ID。因此，建议您使用Android管理API的设备详细信息来获取唯一标识符。您可以使用以下代码示例：

import com.google.android.gms.common.api.ApiException;
import com.google.android.gms.tasks.Tasks;
import com.google.android.gms.tasks.Task;
import com.google.android.gms.tasks.OnSuccessListener;
import com.google.android.gms.tasks.OnFailureListener;
import com.google.android.gms.tasks.OnCompleteListener;
import com.google.android.gms.tasks.OnCanceledListener;
import com.google.android.gms.tasks.CancellationTokenSource;
import com.google.android.gms.tasks.CancellationToken;
import com.google.android.gms.awareness.Awareness;
import com.google.android.gms.awareness.fence.AwarenessFence;
import com.google.android.gms.awareness.fence.DetectedActivityFence;
import com.google.android.gms.awareness.fence.FenceQueryResponse;
import com.google.android.gms.awareness.snapshot.DetectedActivityResult;
import com.google.android.gms.awareness.snapshot.GoogleApiClientAwareness;
import com.google.android.gms.tasks.CancellationTokenSource;
import com.google.android.gms.tasks.Tasks;

void getDeviceDetails() {
    Task task = Awareness.getSnapshotClient(context)
            .getDetectedActivity();
    task.addOnSuccessListener(new OnSuccessListener() {
            @Override
            public void onSuccess(DetectedActivityResult result) {
                int activity = result.getActivityRecognitionResult()
                        .getMostProbableActivity().getType();
                // You can use the activity type to generate a unique device ID
            }
        });
    task.addOnFailureListener(new OnFailureListener() {
            // Handle errors here
        });
}