I am trying to create a simple login and if it is successful, I am trying to save the response userid (uid) into the shared preferences. Below is the part of my loginActivity.java and the error messages are:
Error 1
error: incompatible types: int cannot be converted to String
JsonObjectRequest jsonObjReq = new JsonObjectRequest(Method.POST, Config.LOGIN_URL, null, new Response.Listener<JSONObject>() {
Error 2
error: cannot find symbol
JsonObjectRequest jsonObjReq = new JsonObjectRequest(Method.POST,Config.LOGIN_URL, null, new Response.Listener<JSONObject>() {
^
symbol: constructor (int,String,,>)
LoginActivity.java
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.support.v7.app.ActionBar;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.AppCompatButton;
import android.view.View;
import android.widget.EditText;
import android.widget.Toast;
import org.json.JSONObject;
import com.android.volley.Request.Method;
import com.android.volley.AuthFailureError;
import com.android.volley.RequestQueue;
import com.android.volley.Response;
import com.android.volley.toolbox.JsonObjectRequest;
import com.android.volley.toolbox.Volley;
import java.util.HashMap;
import java.util.Map;
public class LoginActivity extends AppCompatActivity implements View.OnClickListener {
//Defining views
private EditText editTextTCNO;
private EditText editTextMobile;
private AppCompatButton buttonLogin;
//boolean variable to check user is logged in or not
//initially it is false
private boolean loggedIn = false;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
ActionBar actionBar = getSupportActionBar();
actionBar.hide();
//Initializing views
editTextTCNO = (EditText) findViewById(R.id.editTextTCNO);
editTextMobile = (EditText) findViewById(R.id.editTextMobile);
buttonLogin = (AppCompatButton) findViewById(R.id.loginButton);
//Adding click listener
buttonLogin.setOnClickListener(this);
}
@Override
protected void onResume() {
super.onResume();
//In onresume fetching value from sharedpreference
SharedPreferences sharedPreferences = getSharedPreferences(Config.SHARED_PREF_NAME, Context.MODE_PRIVATE);
//Fetching the boolean value form sharedpreferences
loggedIn = sharedPreferences.getBoolean(Config.LOGGEDIN_SHARED_PREF, false);
//If we will get true
if(loggedIn){
//We will start the Profile Activity
Intent intent = new Intent(LoginActivity.this, MainActivity.class);
startActivity(intent);
}
}
private void login() {
//Getting values from edit texts
final String tcno = editTextTCNO.getText().toString().trim();
final String mobile = editTextMobile.getText().toString().trim();
final String operation = "login";
//Creating a string request
JsonObjectRequest jsonObjReq = new JsonObjectRequest(Method.POST, Config.LOGIN_URL, null, new Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject response) {
String smsg = response.getString("msg");
String pid = response.getString("uid");
//If we are getting success from server
if(smsg == Config.LOGIN_SUCCESS){
//Creating a shared preference
SharedPreferences sharedPreferences = LoginActivity.this.getSharedPreferences(Config.SHARED_PREF_NAME, Context.MODE_PRIVATE);
//Creating editor to store values to shared preferences
SharedPreferences.Editor editor = sharedPreferences.edit();
//Adding values to editor
editor.putBoolean(Config.LOGGEDIN_SHARED_PREF, true);
editor.putString(Config.UID_SHARED_PREF, pid);
//Saving values to editor
editor.commit();
//Starting profile activity
Intent intent = new Intent(LoginActivity.this, MainActivity.class);
startActivity(intent);
}else{
//If the server response is not success
//Displaying an error message on toast
Toast.makeText(LoginActivity.this, "Invalid username or password", Toast.LENGTH_LONG).show();
}
}
}){
@Override
protected Map<String, String> getParams() throws AuthFailureError {
Map<String,String> params = new HashMap<>();
//Adding parameters to request
params.put(Config.KEY_TCNO, tcno);
params.put(Config.KEY_MOBILE, mobile);
params.put(Config.KEY_OPERATION, operation);
//returning parameter
return params;
}
};
//Adding the string request to the queue
RequestQueue requestQueue = Volley.newRequestQueue(this);
requestQueue.add(jsonObjReq);
}
@Override
public void onClick(View v) {
//Calling the login function
login();
}
}
this is my fully functional way to make a volley request, hope it helps
private JSONObject LoginJson()
{
JSONObject jsonBody = new JSONObject();
try {
jsonBody.put("Username", "testUser");
jsonBody.put("Password", "123456");
} catch (JSONException e) {
e.printStackTrace();
}
return jsonBody;
}
public boolean identificarce ()
{
RequestFuture<JSONObject> future = RequestFuture.newFuture();
JsonObjectRequest request = new JsonObjectRequest(Request.Method.POST, URL.ServicioLogging, this.LoginJson(), future, future);
QueuHolder.getInstance(Login.contexto).getRequestQueue().add(request);
try {
JSONObject response = future.get();
try
{
String NombreCompleto = response.getString("NombreCompleto");
int id = response.getInt("id");
//save results in shared preferences
}
catch (JSONException e)
{
e.printStackTrace();
}
}
catch (Exception e)
{
e.printStackTrace();
return false;
}
return true;
}