We Keep Coding

How to fix "my interminable login" in android studio

I have some problem with my login code. After clicking the login the progress bar loads so long but nothing really happened.
I can not find what is wrong
I'm using php, mysql, volley library
This is my login code:
public class LoginActivity extends AppCompatActivity {
private EditText email, password;
private Button btn_login;
private ProgressBar loading;
private static String URL_LOGIN ="http://188.173.127.17/Login.php";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
loading = findViewById(R.id.loading);
email = findViewById(R.id.email);
password = findViewById(R.id.password);
btn_login = findViewById(R.id.btn_login);
btn_login.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
String mEmail = email.getText().toString().trim();
String mPass = password.getText().toString().trim();
if (!mEmail.isEmpty() || !mPass.isEmpty()) {
Login(mEmail, mPass);
}else {
email.setError("Please insert email");
password.setError("Please insert password");
}
}
});
final Button bSignup = (Button) findViewById(R.id.bSignup);
bSignup.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent registerIntent = new Intent(LoginActivity.this, RegisterActivity.class);
LoginActivity.this.startActivity(registerIntent);
}
});
}
private void Login(final String email, final String password) {
loading.setVisibility(View.VISIBLE);
btn_login.setVisibility(View.GONE);
StringRequest stringRequest = new StringRequest(Request.Method.POST, URL_LOGIN,
new Response.Listener<String>() {
#Override
public void onResponse(String response) {
try {
JSONObject jsonObject = new JSONObject(response);
String success = jsonObject.getString("success");
JSONArray jsonArray = jsonObject.getJSONArray("login");
if (success.equals("1")) {
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject object = jsonArray.getJSONObject(i);
String username = object.getString("username").trim();
String email = object.getString("email").trim();
Toast.makeText(LoginActivity.this,
"Success Login. \nYour Username : "
+username+"\nYour Email : "
+email, Toast.LENGTH_SHORT)
.show();
loading.setVisibility(View.GONE);
}
}
} catch (JSONException e) {
e.printStackTrace();
loading.setVisibility(View.GONE);
btn_login.setVisibility(View.VISIBLE);
Toast.makeText(LoginActivity.this, "Error" +e.toString(), Toast.LENGTH_SHORT).show();
}
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
loading.setVisibility(View.GONE);
btn_login.setVisibility(View.VISIBLE);
Toast.makeText(LoginActivity.this, "Error" +error.toString(), Toast.LENGTH_SHORT).show();
}
})
{
#Override
protected Map<String, String> getParams() throws AuthFailureError {
Map<String, String> params = new HashMap<>();
params.put("email", email);
params.put("password", password);
return params;
}
};
RequestQueue requestQueue = Volley.newRequestQueue(this);
requestQueue.add(stringRequest);
}

according to your code onResponse() AND onErrorResponse() mehtod not call;
this is come from some reason
1- check your internet connection
2-check your url
3-you may forget to add permission internet
4-if you are on local you may forget run xampp
5-you may set Retry policy and set timeout to your connection thus add it according to following code :
loading.setVisibility(View.VISIBLE);
btn_login.setVisibility(View.GONE);
StringRequest stringRequest = new StringRequest(Request.Method.POST, URL_LOGIN,
new Response.Listener<String>() {
#Override
public void onResponse(String response) {
try {
JSONObject jsonObject = new JSONObject(response);
String success = jsonObject.getString("success");
JSONArray jsonArray = jsonObject.getJSONArray("login");
if (success.equals("1")) {
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject object = jsonArray.getJSONObject(i);
String username = object.getString("username").trim();
String email = object.getString("email").trim();
Toast.makeText(LoginActivity.this,
"Success Login. \nYour Username : "
+username+"\nYour Email : "
+email, Toast.LENGTH_SHORT)
.show();
loading.setVisibility(View.GONE);
}
}
} catch (JSONException e) {
e.printStackTrace();
loading.setVisibility(View.GONE);
btn_login.setVisibility(View.VISIBLE);
Toast.makeText(LoginActivity.this, "Error" +e.toString(),
Toast.LENGTH_SHORT).show();
}
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
loading.setVisibility(View.GONE);
btn_login.setVisibility(View.VISIBLE);
Toast.makeText(LoginActivity.this, "Error" +error.toString(),
Toast.LENGTH_SHORT).show();
}
})
{
#Override
protected Map<String, String> getParams() throws AuthFailureError {
Map<String, String> params = new HashMap<>();
params.put("email", email);
params.put("password", password);
return params;
}
};
stringRequest.setRetryPolicy(new
DefaultRetryPolicy(YOUR_TIMOUT_IN_MILLI_SECOND,
DefaultRetryPolicy.DEFAULT_MAX_RETRIES,
DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));
RequestQueue requestQueue = Volley.newRequestQueue(this);
requestQueue.add(stringRequest);
AND important reason :
6- probably onResponse() is called and success is not equal to 1
thus you must put loading.setVisibility(View.GONE); out of if (success.equals("1")) {...} condition

How to enter data into my sql using php android volly?

the app is connecting with api but data is not being entered into database it error message on unseccesful success.
how to solve it?
This is my register.php code.
if ($_SERVER['REQUEST_METHOD'] =='POST') {
$fname = $_POST['fname'];
$lname = $_POST['lname'];
$emailid = $_POST['email'];
$password = $_POST['password'];
$cpassword = $_POST['cpassword'];
$password = password_hash($password, PASSWORD_DEFAULT);
require_once 'uconnection.php';
$sql = "INSERT INTO user (firstname, lastname, email, password, confirmpassword) VALUES ('$fname', '$lname', '$emailid', '$cpassword')";
if ( mysqli_query($conn, $sql) ) {
$result["success"] = "1";
$result["message"] = "success";
echo json_encode($result);
mysqli_close($conn);
} else {
$result["success"] = "0";
$result["message"] = "error";
echo json_encode($result);
mysqli_close($conn);
}
}
This is my android mainactivity code of android app.
public class MainActivity extends AppCompatActivity {
private EditText fname,lname,emailid,password,cpassword;
private Button buttonregister;
private ProgressDialog pDialog;
private static String URL_REGISTER = "http://192.168.68.74:80/loginregistervollyphp/register.php";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
fname = findViewById(R.id.edtxt_fname);
lname = findViewById(R.id.edtxt_lname);
emailid = findViewById(R.id.edtxt_emailid);
password = findViewById(R.id.edtxt_password);
cpassword = findViewById(R.id.edtxt_cpassword);
buttonregister = findViewById(R.id.btn_r_signup);
buttonregister.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
register_user();
}
});
}
/**
* Display Progress bar while registering
*/
private void displayLoader() {
pDialog = new ProgressDialog(MainActivity.this);
pDialog.setMessage("Signing Up.. Please wait...");
pDialog.setIndeterminate(false);
pDialog.setCancelable(false);
pDialog.show();
}
private void register_user(){
displayLoader();
final String fname = this.fname.getText().toString().trim();
final String lname = this.lname.getText().toString().trim();
final String emailid = this.emailid.getText().toString().trim();
final String password = this.password.getText().toString().trim();
final String cpassword = this.cpassword.getText().toString().trim();
StringRequest stringRequest = new StringRequest(Request.Method.POST, URL_REGISTER,
new Response.Listener<String>() {
#Override
public void onResponse(String response) {
pDialog.dismiss();
try {
JSONObject jsonObject = new JSONObject(response);
String success = jsonObject.getString("success");
Log.d("sucs",success);
if (success.equals("1")){
Toast.makeText(MainActivity.this, "Register Successful :) ", Toast.LENGTH_SHORT).show();
}
else if (success.equals("0")){
Toast.makeText(MainActivity.this, "Register Error!", Toast.LENGTH_SHORT).show();
}
} catch (JSONException e) {
e.printStackTrace();
Toast.makeText(MainActivity.this, "Register Error :( "+ e.toString(), Toast.LENGTH_SHORT).show();
}
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
pDialog.dismiss();
Toast.makeText(MainActivity.this, "Register Error :("+ error.toString(), Toast.LENGTH_SHORT).show();
}
})
{
#Override
protected Map<String, String> getParams() throws AuthFailureError {
Map<String, String> params = new HashMap<>();
params.put("fname",fname);
params.put("lname",lname);
params.put("email",emailid);
params.put("password",password);
params.put("cpassword",cpassword);
return params;
}
};
RequestQueue requestQueue = Volley.newRequestQueue(this);
requestQueue.add(stringRequest);
}

Make changes in your code as follows :
header("Content-Type: application/json"); //add this in your php code
if ( mysqli_query($conn, $sql) ) {
$result["success"] = "1";
$result["message"] = "success";
} else {
$result["success"] = "0";
$result["message"] = "error";
}
echo json_encode($result);
mysqli_close($conn);

Send value from Android Studio to mySQL database with PHP

I'm running an app quiz with 2 table like this https://gyazo.com/641f6e45006ab4f6d962a81d60e1ba69 , https://gyazo.com/be10c2f550f63b4ebc55eda61c3f0f15.
My register -login activity works fine but the issue is when I try to send the score value to database. No errors and no message that's running. Can you help me please?
public class Results extends AppCompatActivity implements OnClickListener {
private Button bt_save;
private TextView tv_label;
int totalscore ;
private ProgressDialog progressDialog;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_results);
tv_label = (TextView) findViewById(R.id.tv_label);
Button bt_Begin = (Button) findViewById(R.id.bt_Begin);
bt_save = (Button)findViewById(R.id.bt_save);
bt_save.setOnClickListener(this);
SharedPreferences sharedPreferences = getSharedPreferences("sharedPref",Context.MODE_PRIVATE);
Integer result = sharedPreferences.getInt("rightAnswerCount", 0);
SharedPreferences sharedPreferencess = getSharedPreferences("sharedPref",Context.MODE_PRIVATE);
Integer results = sharedPreferencess.getInt("rightAnswerCountt",0);
totalscore=(result+results);
tv_label.setText("" +totalscore);
}
private void saveRequest() {
final String score = tv_label.getText().toString().trim();
final ProgressDialog progressDialog = new ProgressDialog(this);
progressDialog.setMessage("Registrating user...");
progressDialog.show();
StringRequest stringRequest = new StringRequest(Request.Method.POST,
Constants.RESULT_URL,
new Response.Listener<String>() {
#Override
public void onResponse(String response) {
progressDialog.dismiss();
try {
JSONObject jsonObject = new JSONObject(response);
Toast.makeText(getApplicationContext(), jsonObject.getString("message"), Toast.LENGTH_LONG).show();
} catch (JSONException e) {
e.printStackTrace();
}
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
progressDialog.hide();
Toast.makeText(getApplicationContext(), error.getMessage(), Toast.LENGTH_LONG).show();
}
}) {
#Override
protected Map<String, String> getParams() throws AuthFailureError {
Map<String, String> key = new HashMap<>();
key.put("totalscore", score+"");
return key;
}
};
RequestHandler.getInstance(this).addToRequestQueue(stringRequest);
}
#Override
public void onClick(View view) {
if (view == bt_save)
saveRequest();
}
this is my php file dbOp1
<?php
class dbOperation1{
private $con;
function __construct(){
require_once dirname(__FILE__).'/connect.php';
$db = new connect();
$this->con = $db->connect();
}
public function saveScore($score){
$stmt = $this->con->prepare("INSERT INTO `test_score`(`id`,`score`) VALUES(NULL, ?);");
$stmt->bind_param("i",$score);
if($stmt->execute()){
return 1;
}else{
return 2;
}
}
}
?>
And this is my Result php:
<?php
error_reporting(0);
require_once 'dbOp1.php';
$response = array();
if($_SERVER['REQUEST_METHOD']=='POST'){
if(
isset($_POST['score']))
{
$db = new dbOperation1();
$result = $db->saveRequest(
$_POST['score']
);
if($result == 1){
$response['error'] = false;
$response['message'] = "User registered sussessfully";
}elseif($result == 2){
$respone['error'] = true;
$response['message'] = "Some error";
}
}
}
echo json_encode($response);

My php script is connected, but android studio won't use it. No visible error outputs

I have a php script for handling very basic registration. its in a folder in my localhost; http://(ipaddress/localhost):3306/testing/Register.php. Android studio points to this URL but i get no error output when i run the emulator. When i open the PHP script in the browser, everything looks good.
Here is the registerrequest java script:
public class RegisterRequest extends StringRequest {
private static final String REGISTER_REQUEST_URL = "http://(ipaddress/localhost):3306/testing/Register.php";
private Map<String, String> params;
public RegisterRequest(String username, String password,String isAdmin, Response.Listener<String> listener){
super(Method.POST, REGISTER_REQUEST_URL,listener,null);
params = new HashMap<>();
params.put("username",username);
params.put("password",password);
params.put("isAdmin",isAdmin+"");
}
public Map<String, String> getparams() {
return params;
}
}
here is my createuser script
public class CreateUser extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_create_user);
this.setTitle("Create User");
final EditText username1 = findViewById(R.id.Createusername);
final EditText password1 = findViewById(R.id.CreatePassword);
final Switch isAdmin = findViewById(R.id.isadmin);
final Button createuser = findViewById(R.id.createuserbtn);
if (getIntent().hasExtra("com.example.northlandcaps.crisis_response")){
isAdmin.setVisibility(View.GONE);
}
createuser.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
final String username = username1.getText().toString();
final String password = password1.getText().toString();
final String isadmin = isAdmin.getText().toString();
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){
Intent intent = new Intent(CreateUser.this, MainActivity.class);
startActivity(intent);
}else{
AlertDialog.Builder builder = new AlertDialog.Builder(CreateUser.this);
builder.setMessage("Register Failed")
.setNegativeButton("Retry",null)
.create()
.show();
}
} catch (JSONException e) {
e.printStackTrace();
}
}
};
RegisterRequest registerRequest = new RegisterRequest(username,password,isadmin,responseListener);
RequestQueue queue = Volley.newRequestQueue(CreateUser.this);
queue.add(registerRequest);
}
});
}
finally, here is my PHP script, Register; m
$db_host = 'localhost:3306';
$db_user = 'root';
$db_pass = '';
$db_name = 'test';
$con = mysqli_connect($db_host,'user',$db_pass,$db_name);
if($con){
echo "connection successful";
}else{
echo "connection failed";
}
$age = $_POST["isAdmin"];
$username = $_POST["username"];
$password = $_POST["password"];
$statement = mysqli_prepare($con, "INSERT INTO cresidentials (username,password,isAdmin) VALUES (?, ?, ?)");
if(!$statement) { printf("Prepare failed: %s\n", mysqli_error($con)); }
if(!$statement) { return json_encode(['status'=>'failed','message'=>mysqli_error($con)]); }
mysqli_stmt_bind_param($statement, "ssi",$username,$password,$isAdmin);
mysqli_stmt_execute($statement);
if(mysqli_error($statement)) { return json_encode(['status'=>'failed','message'=>mysqli_error($con)]); }
$response = array();
$response["success"] = true;
echo json_encode($response);
?>
Im using xampp (apache and mysql turned on) and my Register is in a folder in Htdocs.
Thank you in advance for any help!

You could modify constructor of RegisterRequest:
public RegisterRequest(String username, String password,String isAdmin,
Response.Listener<String> listener,
Response.ErrorListener() errListener){ //add error listener
super(Method.POST, REGISTER_REQUEST_URL,listener,errListener);
......
}
And in CreateUser class file, add below:
Response.ErrorListener errorListener = new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Toast.makeText(context, String.valueOf(error), Toast.LENGTH_SHORT).show();
}
}
Then:
RegisterRequest registerRequest = new RegisterRequest(username,password,isadmin,
responseListener,errorListener);
Now, run again and when error occured, you could see it in error listener.

Android PHP MySQL with Volley, can't register user, getting blank Toast

I'm creating registration form on my localhost, form works as it should, I can register user when using Postman, but when I try to register user from my Android app I only get blank Toast message and user is not registered.
Here's my code:
MainActivity.java
public class MainActivity extends AppCompatActivity implements View.OnClickListener{
private EditText editTextUsername, editTextEmail, editTextPassword;
private Button buttonRegister;
private ProgressDialog progressDialog;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
editTextUsername = (EditText) findViewById(R.id.editTextUsername);
editTextEmail = (EditText) findViewById(R.id.editTextEmail);
editTextPassword = (EditText) findViewById(R.id.editTextPassword);
buttonRegister = (Button) findViewById(R.id.buttonRegister);
progressDialog = new ProgressDialog(this);
buttonRegister.setOnClickListener(this);
}
#Override
public void onClick(View view) {
if (view == buttonRegister){
registerUser();
}
}
private void registerUser() {
final String email = editTextEmail.getText().toString().trim();
final String username = editTextUsername.getText().toString().trim();
final String password = editTextPassword.getText().toString().trim();
progressDialog.setMessage("Registering user...");
progressDialog.show();
StringRequest stringRequest = new StringRequest(Request.Method.POST,
Constants.URL_REGISTER,
new Response.Listener<String>() {
#Override
public void onResponse(String response) {
progressDialog.dismiss();
try {
JSONObject jsonObject = new JSONObject(response);
Toast.makeText(getApplicationContext(), jsonObject.getString("message"), Toast.LENGTH_LONG).show();
} catch (JSONException e) {
e.printStackTrace();
}
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
progressDialog.hide();
Toast.makeText(getApplicationContext(), error.getMessage(), Toast.LENGTH_LONG).show();
}
}) {
#Override
protected Map<String, String> getParams() throws AuthFailureError {
Map<String, String> params = new HashMap<>();
params.put("username", username);
params.put("email", email);
params.put("password", password);
return params;
}
};
RequestHandler.getInstance(this).addToRequestQueue(stringRequest);
}
Constants.java
public class Constants {
private static final String ROOT_URL = "http://192.168.56.2/Android/v1/";
public static final String URL_REGISTER = ROOT_URL+"registerUser.php";
}
RequestHandler.java
public class RequestHandler {
private static RequestHandler mInstance;
private RequestQueue mRequestQueue;
private static Context mCtx;
private RequestHandler(Context context) {
mCtx = context;
mRequestQueue = getRequestQueue();
}
public static synchronized RequestHandler getInstance(Context context) {
if (mInstance == null) {
mInstance = new RequestHandler(context);
}
return mInstance;
}
public RequestQueue getRequestQueue() {
if (mRequestQueue == null) {
// getApplicationContext() is key, it keeps you from leaking the
// Activity or BroadcastReceiver if someone passes one in.
mRequestQueue = Volley.newRequestQueue(mCtx.getApplicationContext());
}
return mRequestQueue;
}
public <T> void addToRequestQueue(Request<T> req) {
getRequestQueue().add(req);
}
}
What am I doing wrong?

First of all give Internet permission to your project.
Then use a php script like this one adapted to your needs:
<?php
$connect = mysqli_connect("mysql.hostinger.gr", "u305474665_xxxxx", "xxxxxxxx", "u305474665_xxxxx");
$name = isset($_POST["name"]) ? $_POST["name"] : '';
$username = isset($_POST["username"]) ? $_POST["username"] : '';
$age = isset($_POST["age"]) ? $_POST["age"] : '';
$password = isset($_POST["password"]) ? $_POST["password"] : '';
function registerUser() {
global $connect, $name, $age, $username, $password;
$statement = mysqli_prepare($connect, "INSERT INTO User (name,username,age, password) VALUES (?, ?, ?, ?)");
mysqli_stmt_bind_param($statement, "ssis", $name, $username, $age, $password);
mysqli_stmt_execute($statement);
mysqli_stmt_close($statement);
};
function usernameAvailable() {
global $connect, $username;
$statement = mysqli_prepare($connect, "SELECT * FROM User WHERE username = ?");
mysqli_stmt_bind_param($statement, "s", $username);
mysqli_stmt_execute($statement);
mysqli_stmt_store_result($statement);
$count = mysqli_stmt_num_rows($statement);
mysqli_stmt_close($statement);
if ($count < 1){
return true;
}
else {
return false;
}
};
$response = array();
$response["success"] = false;
if (usernameAvailable()){
registerUser();
$response["success"] = true;
}
print_r(json_encode($response));
?>
Last but very important: Define a retry policy Recursively on your error Listener.