json 객체를 서버로 보내고 싶습니다. Response.ErrorListener()
에서이 오류가 표시됩니다. ErrorListener를 'android studio의 발리 라이브러리가 요청을 보낼 수 없습니다.
클래스'ErrorListener를에서 파생 된 익명 클래스 '중 하나 추상적 인 선언해야 또는 추상 메소드를 구현 : 나는 안드로이드 스튜디오에서 발리 라이브러리를 통해 요청을 보내려고하면
이 해당 인터페이스에 정의되지 않은 ErrorListener를 내 방법 (VolleyLog)를 호출하기 때문에
package com.example.mujtaba.quizzer; import android.content.Intent; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.widget.ArrayAdapter; import android.widget.Button; import android.widget.Spinner; import android.widget.TextView; import com.android.volley.Request; import com.android.volley.RequestQueue; import com.android.volley.Response; import com.android.volley.VolleyLog; import com.android.volley.toolbox.StringRequest; import com.example.mujtaba.quizzer.Activity.QuizMaking; import com.example.mujtaba.quizzer.Activity.QuizTaking; import org.w3c.dom.Text; import java.util.HashMap; import java.util.Map; public class Login extends AppCompatActivity { private Button button; private TextView username; private TextView password; private Spinner role; private String url = "http://yourdomain.com/path"; private RequestQueue MyRequestQueue; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_login); username=(TextView) findViewById(R.id.username); password=(TextView) findViewById(R.id.password); button=(Button) findViewById(R.id.button); role = (Spinner) findViewById(R.id.role); // Create an ArrayAdapter using the string array and a default spinner layout ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(this, R.array.role_spinner, android.R.layout.simple_spinner_item); // Specify the layout to use when the list of choices appears adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); // Apply the adapter to the spinner role.setAdapter(adapter); } public void Quiz(View v) { //select a new activity on the basis of role StringRequest MyStringRequest = new StringRequest(Request.Method.POST, url, new Response.Listener<String>() { @Override public void onResponse(String response) { //This code is executed if the server responds, whether or not the response contains data. //The String 'response' contains the server's response. } }, new Response.ErrorListener() { //Create an error listener to handle errors appropriately. @Override public void onErrorResponse(VolleyLog error) { //This code is executed if there is an error. } }) { protected Map<String, String> getParams() { Map<String, String> MyData = new HashMap<String,String>(); MyData.put("Field", "Value"); //Add the data you'd like to send to the server. return MyData; } }; MyRequestQueue.add(MyStringRequest); String text = role.getSelectedItem().toString(); switch (text) { case "Student": Intent i = new Intent(getBaseContext(), QuizTaking.class); startActivity(i); break; case "Instructor": Intent j = new Intent(getBaseContext(), QuizMaking.class); startActivity(j); break; } } }
확인하시기 바랍니다 오류 메시지 –
게시 https://stackoverflow.com/questions/28344448/how-to-send-json-object-to-server을 -using-volley-in-android –
http://karn-neelmani.blogspot.in/2014/12/post-json-object-to-server-using-volley.html –