I am currently working on a project that involves retrieving data from my database. The user inputs a car registration number and a rating (ranging from 1 to 5) and then clicks a button. Upon clicking the button, my code is supposed to execute, fetching text from both EditText fields and sending it to my server. I have a PHP file that checks if the car registration number matches any value in the database, and if there's a match, it retrieves the current rating associated with that number. This retrieved value is then displayed on another activity. The PHP file is functioning properly as I tested by manually inserting values. However, the issue I'm facing is that nothing happens when the button is clicked. I've used similar code successfully for retrieving other details in a different app.
Here are the relevant Java classes:
public class DataRetrieve extends StringRequest {
private static final String REGISTER_REQUEST_URL = "https://dipteran-thin.000webhostapp.com/Login1.php";
private Map<String, String> params;
public DataRetrieve (String carreg, int rating, Response.Listener<String> listener) {
super(Method.POST, REGISTER_REQUEST_URL, listener, null);
params = new HashMap<>();
params.put("carreg", carreg);
params.put("rating", rating + "");
}
@Override
public Map<String, String> getParams() {
return params;
}
}
Profile.java (where the user inputs car registration number and rating):
public class Profile extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.profile);
final EditText editText = (EditText) findViewById(R.id.carreg);
final EditText editText1 = (EditText) findViewById(R.id.editText3);
Button button = (Button) findViewById(R.id.button2);
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
final String carreg = editText.getText().toString();
final int rating = Integer.parseInt(editText1.getText().toString());
// Server response handling
Response.Listener<String> responseListener = new Response.Listener<String>() {
@Override
public void onResponse(String response) {
try {
JSONObject jsonResponse = new JSONObject(response);
boolean success = jsonResponse.getBoolean("success");
if (success) {
int rating = jsonResponse.getInt("rating");
Intent intent = new Intent(Profile.this, UserAreaActivity.class);
intent.putExtra("rating", rating);
Profile.this.startActivity(intent);
} else {
AlertDialog.Builder builder = new AlertDialog.Builder(Profile.this);
builder.setMessage("Login Failed")
.setNegativeButton("Retry", null)
.create()
.show();
}
} catch (JSONException e) {
e.printStackTrace();
}
}
};
DataRetrieve loginRequest = new DataRetrieve(carreg, rating, responseListener);
RequestQueue queue = Volley.newRequestQueue(Profile.this);
queue.add(loginRequest);
}
});
}
}
UserAreaActivity.java (where the retrieved value is shown):
public class UserAreaActivity extends AppCompatActivity {
@Override
protected void onCreate (Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_user_area);
final TextView etusername = (TextView) findViewById(R.id.textView2);
final TextView etwelcome = (TextView) findViewById(R.id.textView);
final TextView etuname = (TextView) findViewById(R.id.textView3);
final Button Logout = (Button) findViewById(R.id.logout);
Intent intent = getIntent();
username = intent.getIntExtra("rating", -1);
etusername.setText(username + "");
}
@Override
public void onBackPressed(){
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if ((keyCode == KeyEvent.KEYCODE_VOLUME_DOWN)) {
Intent intent = new Intent(UserAreaActivity.this, Messages.class);
UserAreaActivity.this.startActivity(intent);
}
return true;
}