小编muh*_*mad的帖子

我正在研究NFC，目前尝试为Android 9.0内置的Open Mobile API编写代码，但不明白在SEService中传递Executor参数的方式。

public class MainActivity extends Activity implements SEService.OnConnectedListener {

    final String LOG_TAG = "NfcTest";

    private SEService seService;

    private Button button;


    @Override
    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        LinearLayout layout = new LinearLayout(this);
        layout.setLayoutParams(new LayoutParams(
                LayoutParams.WRAP_CONTENT,
                LayoutParams.WRAP_CONTENT));

        button = new Button(this);
        button.setLayoutParams(new LayoutParams(
                LayoutParams.WRAP_CONTENT,
                LayoutParams.WRAP_CONTENT));

        button.setText("Click Me");
        button.setEnabled(false);
        button.setOnClickListener(new OnClickListener() {
            public void onClick(View v) {
                try {

                    Reader[] readers = seService.getReaders();
                    if (readers.length < 1)
                        return;


                    Session session = readers[0].openSession();



                    Channel channel = session.openLogicalChannel(new byte[]{
                            (byte) 0xF0, …