я получил тост null null, он должен поднять тост: «Добро пожаловать, Анджело (имя пользователя) Dionisio (userSurname)» после входа в систему, но там написано «Welcome null null»
после проверки существования пользователя он должен получить имя из базы данных и отобразить в тосте и переключить действия ...
в чем моя ошибка?
и я хочу сохранить имя пользователя, идентификатор, имя пользователя в общих префиксах после отображения тоста в будущем.
myLoginActivity.java
public class Login extends AppCompatActivity implements View.OnClickListener {
private EditText editTextEmailPhone;
private EditText editTextPassword;
private Button Login;
private ProgressDialog progressDialog;
Parent_DatabaseHelper mydb;
SQLiteDatabase sqLiteDatabase;
ParentModel parentModel;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
editTextEmailPhone = findViewById(R.id.input_username);
editTextPassword = findViewById(R.id.input_password);
findViewById(R.id.btn_login).setOnClickListener(Login.this);
progressDialog = new ProgressDialog(this);
mydb = new Parent_DatabaseHelper(this);
sqLiteDatabase = mydb.getReadableDatabase();
}
@Override
public void onClick(View view) {
switch (view.getId()){
case R.id.btn_login: {
userLogin();
break;
}
}
}
private void userLogin() {
String email = editTextEmailPhone.getText().toString().trim();
String password = editTextPassword.getText().toString().trim();
if (email.isEmpty()) {
editTextEmailPhone.setError("Email or Phone Number is required");
editTextEmailPhone.requestFocus();
return;
}
if (password.isEmpty()) {
editTextPassword.setError("Password is required");
editTextPassword.requestFocus();
return;
}
if (password.length()<6 ){
editTextPassword.setError("Minimum of length of password should be 6");
editTextPassword.requestFocus();
return;
}
else{
progressDialog.setMessage("Please Wait...");
progressDialog.show();
boolean exists = mydb.userExistance(email, password);
if(exists){
progressDialog.dismiss();
SharedPrefs.saveSharedSetting(this, "NoAccount", "false");
Intent intent = new Intent(Login.this, Parent_Home.class);
ArrayList<ParentModel> arrayList = new ArrayList<>();
parentModel = new ParentModel();
String s_parentID;
String s_parentName;
String s_parentSurname;
s_parentID = parentModel.getID();
s_parentName = parentModel.getName();
s_parentSurname = parentModel.getSurname();
Toast.makeText(this, "Welcome " + s_parentName + s_parentSurname, Toast.LENGTH_SHORT).show();
startActivity(intent);
finish();
}
else {
Toast.makeText(getApplicationContext(), "Login error", Toast.LENGTH_SHORT).show();
progressDialog.dismiss();
return;
}
}
}
public void Login_AdminParent(View view) {
startActivity(new Intent(this, Login_AdminTeacher.class));
}
}
DatabaseHelper.java (если вам это нужно)
package edu.angelo.parentsportal;
public class Parent_DatabaseHelper extends SQLiteOpenHelper {
public static final String DATABASE_NAME = "Parents_Portal.db";
public static final String TABLE_NAME = "Parents_Table";
public static final String COL_0 = "ID";
public static final String COL_1 = "NAME";
public static final String COL_2 = "SURNAME";
public static final String COL_3 = "EMAIL_ADDRESS";
public static final String COL_4 = "PHONE_NUMBER";
public static final String COL_5 = "PASSWORD";
public Parent_DatabaseHelper(Context context) {
super(context, DATABASE_NAME, null, 1);
}
@Override
public void onCreate(SQLiteDatabase db) {
db.execSQL("create table " + TABLE_NAME +"(ID INTEGER PRIMARY KEY AUTOINCREMENT, NAME TEXT, SURNAME TEXT, EMAIL_ADDRESS TEXT, PHONE_NUMBER TEXT, PASSWORD TEXT)");
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
db.execSQL("DROP TABLE IF EXISTS "+TABLE_NAME);
onCreate(db);
}
public boolean insertData(String name, String surname, String email_address, String phone_number, String password){
SQLiteDatabase db = this.getWritableDatabase();
ContentValues contentValues = new ContentValues();
contentValues.put(COL_1,name);
contentValues.put(COL_2,surname);
contentValues.put(COL_3,email_address);
contentValues.put(COL_4,phone_number);
contentValues.put(COL_5,password);
long result = db.insert(TABLE_NAME, null , contentValues);
if (result == -1) {
return false;
}
else {
return true;
}
}
public ArrayList<ParentModel> getAllParentsData(){
ArrayList<ParentModel> list = new ArrayList<>();
String sql = "select * from " + TABLE_NAME;
SQLiteDatabase mydb = this.getWritableDatabase();
Cursor cursor = mydb.rawQuery(sql, null);
if (cursor.moveToFirst()) {
do {
ParentModel parentModel = new ParentModel();
parentModel.setID(cursor.getString(0));
parentModel.setName(cursor.getString(1));
parentModel.setSurname(cursor.getString(2));
parentModel.setEmail(cursor.getString(3));
parentModel.setPhone_number(cursor.getString(4));
parentModel.setPassword(cursor.getString(5));
list.add(parentModel);
}
while (cursor.moveToNext());
}
return list;
}
public void updateData(int id, String name , String surname , String email , String phone_number , String password){
ContentValues contentValues = new ContentValues();
contentValues.put(COL_1, name);
contentValues.put(COL_2, surname);
contentValues.put(COL_3, email);
contentValues.put(COL_4, phone_number);
contentValues.put(COL_5, password);
SQLiteDatabase mydb = this.getWritableDatabase();
mydb.update(TABLE_NAME, contentValues, COL_0 + "=" + id, null);
mydb.close();
}
public void deleteParent(int id){
SQLiteDatabase mydb = this.getWritableDatabase();
mydb.delete(TABLE_NAME, COL_0 + "=" + id, null);
mydb.close();
}
public boolean userExistance(String emailOrPhone, String pwd) {
String sql = "select * from " + TABLE_NAME + " where (" + COL_3 + " = '" + emailOrPhone + "' OR " + COL_4 + " = '" + emailOrPhone + "') AND " + COL_5 + " = " + pwd;
SQLiteDatabase mydb = this.getWritableDatabase();
Cursor cursor = mydb.rawQuery(sql, null);
ArrayList<ParentModel> list = new ArrayList<>();
if (cursor.getCount() > 0) {
if (cursor.moveToFirst()) {
do {
ParentModel parentModel = new ParentModel();
parentModel.setID(cursor.getString(0));
parentModel.setName(cursor.getString(1));
parentModel.setSurname(cursor.getString(2));
parentModel.setEmail(cursor.getString(3));
parentModel.setPhone_number(cursor.getString(4));
parentModel.setPassword(cursor.getString(5));
list.add(parentModel);
}
while (cursor.moveToNext());
}
return true;
}
else{
return false;
}
}
}