Question

我的Android应用程序有一个包含AsyncTask的问题。当我尝试调试它时，androidStudio带我到asynctask的一段评论。我不明白这个问题是由图书馆的问题引起的还是问题是建筑的逻辑：我有一个班级

从UI获取一个整数，然后

-lunch asynctask连接到服务器并接收数据（将其放在变量上），然后

- 重绘ui并在textview上设置数据

喜欢代码：

public class MainActivity extends Activity
{
    LinearLayout spazioGen;
    TextView[] cell;
    LinearLayout[] rows;
    LinearLayout def;
    LinearLayout solution;
    private Socket client;
    private PrintWriter printwriter;
    private BufferedReader in;
    private EditText textField;
    private TextView serverOut;
    private Button button;
    private String messsage;
    private String inputLine;
    private Integer dimensionChoosed = 10;
    private String word1 = "";
    private String word2 = "";

    @Override
    protected void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        textField = (EditText) findViewById(R.id.dimension);    
        button = (Button) findViewById(R.id.findCenter);            

        button.setOnClickListener(new View.OnClickListener()
        {
            public void onClick(View v)
            {
                messsage = textField.getText().toString();    // get the text message on the text field
                textField.setText("");                        // Reset the text field to blank
                dimensionChoosed = Integer.parseInt(messsage.toString());
                SendMessage sendMessageTask = new SendMessage();
                sendMessageTask.execute();
                createGriglia();
            }
        });
    }

    private void createGriglia(Integer dimensionChoosed)
    {
        int i,j;
        spazioGen = new LinearLayout(this);
        spazioGen.setOrientation(LinearLayout.VERTICAL);
        spazioGen.setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT));
        spazioGen.setBackgroundDrawable(getResources().getDrawable(R.drawable.border_ext));
        spazioGen.setPadding(5, 5, 5, 5);

        //create an array of textview to fillup with data received from server

        setContentView(spazioGen);
    }

    private class SendMessage extends AsyncTask<Void, Void, Void>
    {
        @Override
        protected Void doInBackground(Void... params)
        {
            try
            {
                client = new Socket("192.168.0.104", 4444); // connect to the server
                printwriter = new PrintWriter(client.getOutputStream(), true);
                printwriter.println(messsage); // write the message to output stream
                printwriter.flush();

                InputStreamReader inputStreamReader = new InputStreamReader(client.getInputStream());
                BufferedReader bufferedReader = new BufferedReader(inputStreamReader); // get the client message
                String message = "";


                while ((message = bufferedReader.readLine()) != null && !(message.equals("flag")))
                {
                    word1 = message;
                    //do stuff with data received
                }

                while ((message = bufferedReader.readLine()) != null)
                {
                    word2 = message;
                    //do stuff with data received
                }

                inputStreamReader.close();
                System.out.println(message);
                printwriter.close();
                client.close(); // closing the connection

            } catch (UnknownHostException e)
            {
                e.printStackTrace();
            } catch (IOException e)
            {
                e.printStackTrace();
            }
            return null;
        }

        @Override
        protected void onPostExecute(Void aVoid)
        {
            createGriglia(dimensionChoosed);
        }
    }

}

提前致谢

Answer 1

感谢所有帮助我的人。
我解决了安装最新版android studio的问题。我希望这可以帮助那些遇到同样问题的人

为什么我的AsyncTask类没有被调试？

1 个答案: