凌空服务不进入回调

Question

我正在尝试使用 volley 服务执行 http 请求，我在这里找到了一个非常有用的答案，即如何为不同的 http 请求组织服务，因此您不需要为每个请求执行所有代码。

请求工作正常，我得到了我想要的结果，但它永远不会在 mainActivity 上输入 de 回调。

所以这永远不会被执行：

void initVolleyCallback(){
        mResultCallback = new IResult() {
            @Override
            public void notifySuccess(String requestType,JSONObject response) {
                Log.d("GJ","success");
            }
            @Override
            public void notifyError(String requestType,VolleyError error) {
                Log.d(TAG, "Volley requester " + requestType);
                Log.d(TAG, "Volley JSON post" + "That didn't work!");
            }
        };
    }

这是我的主要活动：

public class Register extends AppCompatActivity {
    EditText usernameTxt;
    EditText passwordTxt;
    EditText emailTxt;
    RequestQueue queue;
    boolean formValid = false;
    VolleyService mVolleyService;
    IResult mResultCallback;
    static final String TAG = "request12";
    final String URL = "http://10.0.2.2:3000/register";
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        //hide status bar
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
        setContentView(R.layout.activity_register);
        initVolleyCallback();
        //inicialize queue with volley
        queue = Volley.newRequestQueue(this);
        //inicialize form fields
        usernameTxt = (EditText)findViewById(R.id.username);
        passwordTxt = (EditText)findViewById(R.id.password);
        emailTxt = (EditText)findViewById(R.id.email);
        //set text for developing stage
        usernameTxt.setText("afcosta5");
        passwordTxt.setText("moitarioavE10");
        emailTxt.setText("[e-mail]");
    }
    public void register(View view) {
        System.setProperty("http.keepAlive", "false");
        //get form data
        final String username = usernameTxt.getText().toString();
        String password = passwordTxt.getText().toString();
        String email = emailTxt.getText().toString();
        Log.d("email",String.valueOf(isValidEmail(email)));
        if (!isValidEmail(email)) {
            emailTxt.setError("Invalid Email");
        }
        //inicialize a map with pair key value
        final Map<String, String> params = new HashMap<String, String>();
        // Add form fields to the map
        params.put("username", username);
        params.put("email", email);
        params.put("password", password);
        JSONObject sendObj = new JSONObject(params);
        mVolleyService = new VolleyService(mResultCallback,this);
        mVolleyService.postDataVolley(URL,sendObj);

 void initVolleyCallback(){
        mResultCallback = new IResult() {
            @Override
            public void notifySuccess(String requestType,JSONObject response) {
                Log.d("GJ","success");
            }
            @Override
            public void notifyError(String requestType,VolleyError error) {
                Log.d(TAG, "Volley requester " + requestType);
                Log.d(TAG, "Volley JSON post" + "That didn't work!");
            }
        };
    }

我真的不知道问题在哪里，需要一些帮助

Answer 1

从"onCreate(("中删除"initVolleyCallback(("方法。实现"IResult"接口，如

public class Register extends AppCompatActivity implements IResult 

那么你必须实现 IResult 的覆盖方法

@Override
public void notifySuccess(String requestType,JSONObject response) {
    Log.d("GJ","success");
}
@Override
public void notifyError(String requestType,VolleyError error) {
     Log.d(TAG, "Volley requester " + requestType);
     Log.d(TAG, "Volley JSON post" + "That didn't work!");
}