How to use a SQLite data base properly? - java

please suggest me solution for this code. It does not work. The application goes back after I pressed submit button. It can not store data
public class UserContract {
//if you need multi tabless user inner classes to represent each table inn class
public static abstract class NewUserinfo implements BaseColumns
{
public static final String USER_NAME="user_name"; //right side represent column name
public static final String USER_MOB="user_mob";
public static final String USER_EMAIL="user_email";
public static final String TABLE_NAME="user_info";
}
}
public class UserDbHelper extends SQLiteOpenHelper {
private static final String DATABASE_NAME="USERINFO.DB";
private static final int database_version=1;
private static final String create_query=
"CREATE TABLE "+ UserContract.NewUserinfo.TABLE_NAME + " ("+ UserContract.NewUserinfo.USER_NAME+" TEXT, "+
UserContract.NewUserinfo.USER_MOB+" TEXT,"+ UserContract.NewUserinfo.USER_EMAIL+" TEXT);";
public UserDbHelper(Context context)
{
super(context,DATABASE_NAME,null,database_version);
Log.e("database operation ","database created /opend");
}
#Override
public void onCreate(SQLiteDatabase sqLiteDatabase) {
sqLiteDatabase.execSQL(create_query);
Log.e("database operation","table created");
}
public void addinformation(String name, String mob, String email, SQLiteDatabase db)
{
ContentValues contentValues=new ContentValues();
contentValues.put(UserContract.NewUserinfo.USER_NAME,name);
contentValues.put(UserContract.NewUserinfo.USER_MOB,mob);
contentValues.put(UserContract.NewUserinfo.USER_EMAIL,email);
db.insert(UserContract.NewUserinfo.TABLE_NAME,null,contentValues);
Log.e("database operation","one row insert");
}
#Override
public void onUpgrade(SQLiteDatabase sqLiteDatabase, int i, int i1) {
}
}
public class NewContactActivity extends AppCompatActivity {
UserDbHelper userDbHelper;
SQLiteDatabase sqLiteDatabase;
EditText editText,editText1,editText2;
Context context;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_new_contact);
editText=findViewById(R.id.contect_name);
editText1=findViewById(R.id.mob_number);
editText2=findViewById(R.id.email);
}
public void addcontact(View view)
{
String name= editText.getText().toString();
String number=editText1.getText().toString();
String email=editText2.getText().toString();
userDbHelper=new UserDbHelper(context);
sqLiteDatabase=userDbHelper.getWritableDatabase();
userDbHelper.addinformation(name,number,email,sqLiteDatabase);
Toast.makeText(getBaseContext(), "data saved", Toast.LENGTH_SHORT).show();
}
}


you require a primary key in one of the variables. say it like this.
String CREATE_TABLE = "CREATE TABLE " + TABLE_NAME + "(" + KEY_ID + " INTEGER PRIMARY KEY AUTOINCREMENT," + TITLE + " TEXT," + PRINT_NAME + " TEXT," + MRP + " TEXT," + QTY + " TEXT, " + IMAGE + " BLOB, " + WEIGHT + " TEXT " + ")";
db.execSQL(CREATE_TABLE);
}
The Overall Code Should Look Like...
public class SQLiteHandler extends SQLiteOpenHelper {
private static final int DATABASE_VERSION = 1;
private static final String DATABASE_NAME = "Club100database";
private static final String TABLE_NAME = "myclub100cart";
private static final String KEY_ID = "cart_id";
private static final String TITLE = "title";
private static final String PRINT_NAME = "print_name";
private static final String MRP = "mrp";
private static final String QTY = "qty";
private static final String IMAGE = "image";
private static final String WEIGHT = "weight";
public SQLiteHandler(Context context) {
super(context,DATABASE_NAME,null,DATABASE_VERSION);
}
#Override
public void onCreate(SQLiteDatabase db) {
String CREATE_TABLE = "CREATE TABLE " + TABLE_NAME + "(" + KEY_ID + " INTEGER PRIMARY KEY AUTOINCREMENT," + TITLE + " TEXT," + PRINT_NAME + " TEXT," + MRP + " TEXT," + QTY + " TEXT, " + IMAGE + " BLOB, " + WEIGHT + " TEXT " + ")";
db.execSQL(CREATE_TABLE);
}
#Override
public void onUpgrade(SQLiteDatabase db, int i, int i1) {
db.execSQL(" DROP TABLE " + TABLE_NAME);
onCreate(db);
}
}


As you mentioned error:
02-08 16:22:06.453 1994-1994/com.example.abbas.sqlitedatabase
E/dalvikvm: Could not find class
'android.graphics.drawable.RippleDrawable', referenced from method
android.support.v7.widget.AppCompatImageHelper.hasOverlappingRendering
Its not the issue of DataBase , its issue of Drawable Resource
Look into this
Could not find RippleDrawable
Could not find class 'android.graphics.drawable.RippleDrawable', Could not execute method for android:onClick, Android Studio

Related

Feed table 2 with table one data SQLite Android Studio

I'm trying to create a app of baking sell expenses, where I can input the values of the ingredients used on the baking process individually, and then input the values of each product using the values of the ingredients in each recipe, so I can see how much I can sell then to have a good profit.
I have a database and methods working on my first table (Save, Delete, Update, Search...), but I can't make my second table (TABLE_RECEITA) uses the data that already exist from my first table (TABLE_PRODUTO), to complement my recipes.
I want to feed my second table on it's columns with the data from my first table columns, only changing the data of quantity, and value by dividing according to the amount used.
I've tried to used foreign key and spinner but was not successful, but there's a high possibility that I did something wrong.
My Database:
package com.myapplication.umdocededaisy;
import android.annotation.SuppressLint;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.widget.Toast;
import java.util.ArrayList;
import java.util.List;
public class MyDatabase extends SQLiteOpenHelper {
List<MateriaPrima> listaProduto = new ArrayList<>();
List<Receita> listaReceita = new ArrayList<>();
private final Context context;
private static final String DATABASE_NAME = "BancoDoceDaisy.db";
private static final int DATABASE_VERSION = 9;
//Estruturas das Tabelas do banco de dados:
//Tabela dos produtos - materia prima **(FIRST TABLE)**:
private static final String TABLE_PRODUTO = "materia_prima";
private static final String COLUMN_CODIGO = "codigo";
private static final String COLUMN_PRODUTO = "produto";
private static final String COLUMN_VALOR = "valor";
private static final String COLUMN_QTD = "quantidade";
private static final String COLUMN_TIPO = "tipo";
//------------------------------------------------------
//Tabela de receitas/massas - **(SECOND TABLE)**:
private static final String TABLE_RECEITA = "receitas";
private static final String COLUMN_TITULO = "titulo";
private static final String COLUMN_ITEM1 = "item1";
private static final String COLUMN_ITEM2 = "item2";
private static final String COLUMN_ITEM3 = "item3";
private static final String COLUMN_ITEM4 = "item4";
private static final String COLUMN_ITEM5 = "item5";
private static final String COLUMN_ITEM6 = "item6";
private static final String COLUMN_ITEM7 = "item7";
private static final String COLUMN_ITEM8 = "item8";
private static final String COLUMN_ITEM9 = "item9";
private static final String COLUMN_ITEM10 = "item10";
private static final String COLUMN_ITEM11 = "item11";
private static final String COLUMN_ITEM12 = "item12";
private static final String COLUMN_ITEM13 = "item13";
private static final String COLUMN_ITEM14 = "item14";
private static final String COLUMN_VALOR1 = "valor1";
private static final String COLUMN_VALOR2 = "valor2";
private static final String COLUMN_VALOR3 = "valor3";
private static final String COLUMN_VALOR4 = "valor4";
private static final String COLUMN_VALOR5 = "valor5";
private static final String COLUMN_VALOR6 = "valor6";
private static final String COLUMN_VALOR7 = "valor7";
private static final String COLUMN_VALOR8 = "valor8";
private static final String COLUMN_VALOR9 = "valor9";
private static final String COLUMN_VALOR10 = "valor10";
private static final String COLUMN_VALOR11 = "valor11";
private static final String COLUMN_VALOR12 = "valor12";
private static final String COLUMN_VALOR13 = "valor13";
private static final String COLUMN_VALOR14 = "valor14";
private static final String COLUMN_QTD1 = "qtd1";
private static final String COLUMN_QTD2 = "qtd2";
private static final String COLUMN_QTD3 = "qtd3";
private static final String COLUMN_QTD4 = "qtd4";
private static final String COLUMN_QTD5 = "qtd5";
private static final String COLUMN_QTD6 = "qtd6";
private static final String COLUMN_QTD7 = "qtd7";
private static final String COLUMN_QTD8 = "qtd8";
private static final String COLUMN_QTD9 = "qtd9";
private static final String COLUMN_QTD10 = "qtd10";
private static final String COLUMN_QTD11 = "qtd11";
private static final String COLUMN_QTD12 = "qtd12";
private static final String COLUMN_QTD13 = "qtd13";
private static final String COLUMN_QTD14 = "qtd14";
MyDatabase(Context context) {
super(context, DATABASE_NAME,null, DATABASE_VERSION);
this.context = context;
}
#Override
public void onCreate(SQLiteDatabase db) {
String query = "CREATE TABLE "+ TABLE_PRODUTO +
" (" + COLUMN_CODIGO + " INTEGER PRIMARY KEY AUTOINCREMENT, " +
COLUMN_PRODUTO + " TEXT, " +
COLUMN_VALOR + " FLOAT, " +
COLUMN_QTD + " FLOAT, " +
COLUMN_TIPO + " TEXT); ";
db.execSQL(query);
String query2 = "CREATE TABLE "+ TABLE_RECEITA +
" (" + COLUMN_TITULO + " TEXT PRIMARY KEY, " + COLUMN_ITEM1 + "TEXT," + COLUMN_ITEM2 + " TEXT, " +
COLUMN_ITEM3 + " TEXT, " + COLUMN_ITEM4 + " TEXT, " + COLUMN_ITEM5 + " TEXT, " + COLUMN_ITEM6 + " TEXT, " +
COLUMN_ITEM7 + " TEXT, " + COLUMN_ITEM8 + " TEXT, " + COLUMN_ITEM9 + " TEXT, " + COLUMN_ITEM10 + " TEXT, " +
COLUMN_ITEM11 + " TEXT, " + COLUMN_ITEM12 + " TEXT, " + COLUMN_ITEM13 + " TEXT, " + COLUMN_ITEM14 + " TEXT, " +
COLUMN_VALOR1 + "FLOAT, " + COLUMN_VALOR2 + "FLOAT, " +COLUMN_VALOR3 + "FLOAT, " + COLUMN_VALOR4 + "FLOAT, " +
COLUMN_VALOR5 + "FLOAT, " + COLUMN_VALOR6 + "FLOAT, " + COLUMN_VALOR7 + "FLOAT, " + COLUMN_VALOR8 + "FLOAT, " +
COLUMN_VALOR9 + "FLOAT, " + COLUMN_VALOR10 + "FLOAT, " + COLUMN_VALOR11 + "FLOAT, " + COLUMN_VALOR12 + "FLOAT, " +
COLUMN_VALOR13 + "FLOAT, " + COLUMN_VALOR14 + "FLOAT, " + COLUMN_QTD1 + "FLOAT, " + COLUMN_QTD1 + "FLOAT, " +
COLUMN_QTD1 + "FLOAT, " + COLUMN_QTD2 + "FLOAT, " + COLUMN_QTD3 + "FLOAT, " + COLUMN_QTD4 + "FLOAT, " +
COLUMN_QTD5 + "FLOAT, " + COLUMN_QTD6 + "FLOAT, " + COLUMN_QTD7 + "FLOAT, " + COLUMN_QTD8 + "FLOAT, " +
COLUMN_QTD9 + "FLOAT, " + COLUMN_QTD10 + "FLOAT, " + COLUMN_QTD11 + "FLOAT, " + COLUMN_QTD12 + "FLOAT, " +
COLUMN_QTD13 + "FLOAT, " + COLUMN_QTD14 + "FLOAT); ";
db.execSQL(query2);
}
#Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
db.execSQL("DROP TABLE IF EXISTS " + TABLE_PRODUTO);
db.execSQL("DROP TABLE IF EXISTS " + TABLE_RECEITA);
onCreate(db);
}
void addProduto(MateriaPrima materiaPrima) {
SQLiteDatabase db = this.getWritableDatabase();
ContentValues cv = new ContentValues();
cv.put(COLUMN_PRODUTO, materiaPrima.getProduto());
cv.put(COLUMN_VALOR, materiaPrima.getValor());
cv.put(COLUMN_QTD, materiaPrima.getQuantidade());
cv.put(COLUMN_TIPO, materiaPrima.getTipo());
long result = db.insert(TABLE_PRODUTO, null, cv);
if (result == -1) {
Toast.makeText(context, R.string.strFailed, Toast.LENGTH_SHORT).show();
}else {
Toast.makeText(context, R.string.strAddSucess, Toast.LENGTH_SHORT).show();
}
db.close();
}
void addReceita(Receita receita) {
SQLiteDatabase db = this.getWritableDatabase();
ContentValues cv = new ContentValues();
cv.put(COLUMN_TITULO, receita.getTitulo());
cv.put(COLUMN_ITEM1, receita.getItem1());
cv.put(COLUMN_ITEM2, receita.getItem2());
cv.put(COLUMN_ITEM3, receita.getItem3());
cv.put(COLUMN_ITEM4, receita.getItem4());
cv.put(COLUMN_ITEM5, receita.getItem5());
cv.put(COLUMN_ITEM6, receita.getItem6());
cv.put(COLUMN_ITEM7, receita.getItem7());
cv.put(COLUMN_ITEM8, receita.getItem8());
cv.put(COLUMN_ITEM9, receita.getItem9());
cv.put(COLUMN_ITEM10, receita.getItem10());
cv.put(COLUMN_ITEM11, receita.getItem11());
cv.put(COLUMN_ITEM12, receita.getItem12());
cv.put(COLUMN_ITEM13, receita.getItem13());
cv.put(COLUMN_ITEM14, receita.getItem14());
cv.put(COLUMN_VALOR1, receita.getValor1());
cv.put(COLUMN_VALOR2, receita.getValor2());
cv.put(COLUMN_VALOR3, receita.getValor3());
cv.put(COLUMN_VALOR4, receita.getValor4());
cv.put(COLUMN_VALOR5, receita.getValor5());
cv.put(COLUMN_VALOR6, receita.getValor6());
cv.put(COLUMN_VALOR7, receita.getValor7());
cv.put(COLUMN_VALOR8, receita.getValor8());
cv.put(COLUMN_VALOR9, receita.getValor9());
cv.put(COLUMN_VALOR10, receita.getValor10());
cv.put(COLUMN_VALOR11, receita.getValor11());
cv.put(COLUMN_VALOR12, receita.getValor12());
cv.put(COLUMN_VALOR13, receita.getValor13());
cv.put(COLUMN_VALOR14, receita.getValor14());
cv.put(COLUMN_QTD1, receita.getQtd1());
cv.put(COLUMN_QTD2, receita.getQtd2());
cv.put(COLUMN_QTD3, receita.getQtd3());
cv.put(COLUMN_QTD4, receita.getQtd4());
cv.put(COLUMN_QTD5, receita.getQtd5());
cv.put(COLUMN_QTD6, receita.getQtd6());
cv.put(COLUMN_QTD7, receita.getQtd7());
cv.put(COLUMN_QTD8, receita.getQtd8());
cv.put(COLUMN_QTD9, receita.getQtd9());
cv.put(COLUMN_QTD10, receita.getQtd10());
cv.put(COLUMN_QTD11, receita.getQtd11());
cv.put(COLUMN_QTD12, receita.getQtd12());
cv.put(COLUMN_QTD13, receita.getQtd13());
cv.put(COLUMN_QTD14, receita.getQtd14());
long result = db. insert(TABLE_RECEITA, null, cv);
if (result == -1) {
Toast.makeText(context, R.string.strFailed, Toast.LENGTH_SHORT).show();
}else {
Toast.makeText(context, R.string.strAddSucess, Toast.LENGTH_SHORT).show();
}
db.close();
}
public List<MateriaPrima> buscaProduto() {
String[] columns = {COLUMN_CODIGO, COLUMN_PRODUTO, COLUMN_VALOR, COLUMN_QTD, COLUMN_TIPO};
SQLiteDatabase db = getReadableDatabase();
#SuppressLint("Recycle") Cursor cursor = db.query(TABLE_PRODUTO, columns, null, null, null,null, null);
while (cursor.moveToNext()) {
int index1 = cursor.getColumnIndex(COLUMN_CODIGO);
int codigo = cursor.getInt(index1);
int index2 = cursor.getColumnIndex(COLUMN_PRODUTO);
String produto = cursor.getString(index2);
int index3 = cursor.getColumnIndex(COLUMN_VALOR);
float valor = cursor.getFloat(index3);
int index4 = cursor.getColumnIndex(COLUMN_QTD);
float quantidade = cursor.getFloat(index4);
int index5 = cursor.getColumnIndex(COLUMN_TIPO);
String tipo = cursor.getString(index5);
MateriaPrima produtos = new MateriaPrima(codigo, produto, valor, quantidade, tipo);
listaProduto.add(produtos);
}
return listaProduto;
}
public List<Receita> buscaReceita() {
String[] columns = {COLUMN_TITULO, COLUMN_ITEM1, COLUMN_VALOR, COLUMN_QTD, COLUMN_TIPO};
SQLiteDatabase db = getReadableDatabase();
#SuppressLint("Recycle") Cursor cursor = db.query(TABLE_RECEITA, columns, null, null, null,null, null);
while (cursor.moveToNext()) {
int index1 = cursor.getColumnIndex(COLUMN_TITULO);
String titulo = cursor.getString(index1);
int index2 = cursor.getColumnIndex(COLUMN_ITEM1);
String item1 = cursor.getString(index2);
/*int index3 = cursor.getColumnIndex(COLUMN_VALOR);
float valor = cursor.getFloat(index3);
int index4 = cursor.getColumnIndex(COLUMN_QTD);
float quantidade = cursor.getFloat(index4);
int index5 = cursor.getColumnIndex(COLUMN_TIPO);
String tipo = cursor.getString(index5);*/
Receita receitas = new Receita(titulo, item1); //, valor, quantidade, tipo);
listaReceita.add(receitas);
}
return listaReceita;
}
void updateData(String row_id, String produto, String valor, String quantidade, String tipo){
SQLiteDatabase db = this.getWritableDatabase();
ContentValues cv = new ContentValues();
cv.put(COLUMN_PRODUTO, produto);
cv.put(COLUMN_VALOR, valor);
cv.put(COLUMN_QTD, quantidade);
cv.put(COLUMN_TIPO, tipo);
long result = db.update(TABLE_PRODUTO, cv, "codigo=?", new String[]{row_id});
if(result == -1){
Toast.makeText(context, R.string.strFailed, Toast.LENGTH_SHORT).show();
} else{
Toast.makeText(context, R.string.strSucess, Toast.LENGTH_SHORT).show();
}
db.close();
}
void deleteOneRow(String row_id){
SQLiteDatabase db = this.getWritableDatabase();
long result = db.delete(TABLE_PRODUTO, "codigo=?", new String[]{row_id});
if(result== -1){
Toast.makeText(context, R.string.strFailed, Toast.LENGTH_SHORT).show();
}else {
Toast.makeText(context, R.string.strSucess, Toast.LENGTH_SHORT).show();
}
}
void deleteAllData() {
SQLiteDatabase db = this.getWritableDatabase();
db.execSQL("DELETE FROM " + TABLE_PRODUTO);
db.close();
}
}
My Activity to Save My Recipe (Second Table) using the ingredients saved on the first table:
package com.myapplication.umdocededaisy;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Spinner;
import android.widget.TextView;
import android.widget.Toast;
import java.util.ArrayList;
import java.util.List;
public class AddItem extends AppCompatActivity {
EditText et_produto, et_valor, et_qtd, et_sqtd, et_tipo, et_stipo;
Button btnIncluir;
String produto, valor, quantidade, tipo;
List<MateriaPrima> listaProdutos;
Spinner spinner;
MyDatabase myDB = new MyDatabase(this);
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_add_item);
//Declarações objetos:
et_produto = findViewById(R.id.et_produto);
et_valor = findViewById(R.id.et_valor);
et_qtd = findViewById(R.id.et_qtd);
et_sqtd = findViewById(R.id.et_sqtd);
et_tipo = findViewById(R.id.et_tipo);
et_stipo = findViewById(R.id.et_stipo);
btnIncluir = findViewById(R.id.btnIncluir);
spinner = findViewById(R.id.spinner);
//Chamada de Métodos:
getAndSetIntentData();
loadSpinnerData();
loadSpinner();
//Botões:
//Save Button to Second Table:
btnIncluir.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Receita receita = new Receita();
myDB.addReceita(receita);
}
});
}
void getAndSetIntentData() {
if (getIntent().hasExtra("produto") && getIntent().hasExtra("valor") &&
getIntent().hasExtra("quantidade") && getIntent().hasExtra("tipo")){
//Getting data:
produto = getIntent().getStringExtra("produto");
valor = getIntent().getStringExtra("valor");
quantidade = getIntent().getStringExtra("quantidade");
tipo = getIntent().getStringExtra("tipo");
//Setting data:
et_produto.setText(produto);
et_valor.setText(valor);
et_qtd.setText(quantidade);
et_tipo.setText(tipo);
et_stipo.setText(tipo);
}else{
Toast.makeText(this, R.string.strData0, Toast.LENGTH_SHORT).show();
}
}
I don't know how to write the code to save those changes, I don't know if I have to change something on my database insert method or just here, because my insert method is writing just like the one on my first table.
My AddProduto (where I save my ingredients one first table):
package com.myapplication.umdocededaisy;
import androidx.appcompat.app.AppCompatActivity;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.view.inputmethod.InputMethodManager;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
import com.google.android.material.floatingactionbutton.FloatingActionButton;
public class AddProduto extends AppCompatActivity {
EditText editProduto, editValor, editQuantidade, editTipo;
FloatingActionButton btnVoltar;
Button btnSalvar;
InputMethodManager inputManager;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_add_produto);
//Declarações objetos:
editProduto = findViewById(R.id.editProduto);
editValor = findViewById(R.id.editValor);
editQuantidade = findViewById(R.id.editQuantidade);
editTipo = findViewById(R.id.editTipo);
btnVoltar = findViewById(R.id.btnVoltar);
btnSalvar = findViewById(R.id.btnSalvar);
inputManager = (InputMethodManager) getSystemService (Context.INPUT_METHOD_SERVICE);
btnVoltar.setOnClickListener(v -> {
Intent voltar = new Intent(AddProduto.this, MainActivity.class);
startActivity(voltar);
});
btnSalvar.setOnClickListener(v -> {
if(editProduto.getText().toString().isEmpty() || editValor.getText().toString().isEmpty() ||
editQuantidade.getText().toString().isEmpty() || editTipo.getText().toString().isEmpty())
{
Toast.makeText(AddProduto.this, R.string.strEmpty, Toast.LENGTH_SHORT).show();
}else{
MyDatabase myDB = new MyDatabase(AddProduto.this);
MateriaPrima materiaPrima = new MateriaPrima();
materiaPrima.setProduto(editProduto.getText().toString());
materiaPrima.setValor(Float.parseFloat(editValor.getText().toString()));
materiaPrima.setQuantidade(Float.parseFloat(editQuantidade.getText().toString()));
materiaPrima.setTipo(editTipo.getText().toString());
myDB.addProduto(materiaPrima);
}
reset();
editProduto.requestFocus(); //focar no campo especificado
inputManager.hideSoftInputFromWindow(btnSalvar.getWindowToken(), 0);
});
}
void reset(){
editProduto.setText(" ");
editValor.setText(" ");
editQuantidade.setText(" ");
editTipo.setText(" ");
}
}
Can anyone help me?
I've looked everywhere but didn't found anything that can be applied to my case.
Thanks in advance.

I don't know how to write the code to save those changes,
The design of your database appears to be introducing complexities that would make inserting and retrieving data into/from the second table quite complex.
By the look of it your second table consists of many columns where a relationship could replace the repeated columns (materia/ingredients) and adding such a relationship could perhaps simplify matters.
To look at this you have materia (ingredients) such as Milk Flour Sugar etc. An ingredient can be used in many recipes and a recipe can use many ingredients. As such you likely want a many-many relationship between recipes and ingredients.
So I'd suggest that you consider a mapping table that allows you have to a many to many relationship, so 3 tables instead of 2. Perhaps consider the following:-
CREATE TABLE IF NOT EXISTS materia_prima (codigo INTEGER PRIMARY KEY /* AUTOINCREMENT */,produto TEXT, VALOR FLOAT, QTD FLOAT, TIPO TEXT);
CREATE TABLE IF NOT EXISTS receitas (TITULO TEXT PRIMARY KEY);
CREATE TABLE IF NOT EXISTS receitas_materia (
titulo_map TEXT REFERENCES receitas(titulo) ON DELETE CASCADE ON UPDATE CASCADE,
materia_map INTEGER REFERENCES materia_prima(codigo) ON DELETE CASCADE ON UPDATE CASCADE, receitas_materia_qtd FLOAT,
PRIMARY KEY(titulo_map,materia_map));
The materia_prima table is as it was (except there is no need for the inefficient AUTOINCREMENT so that's been commented out)
The receitas table has been greatly simplified (just 1 column)
The receitas_materia table is the mapping table that is used to signify that an ingredient is used by a recipe.
Foreign Key constraints (the REFERENCES clause) have been added to enforce referential integrity.
The ON DELETE/UPDATE says to propagate changes from the parent to the child.
A third column has been added to denote the quantity used by the recipe.
So taking this further the following data is added :-
First some ingredients including their cost per measure:-
INSERT INTO materia_prima VALUES
(null,'Plain Flour',0.54,1,'Gram'),
(null,'SR Flour',0.55,1,'Gram'),
(null,'Eggs',1.34,1,'Each'),
(null,'Milk',0.2,1,'MilliLitre'),
(null,'Sugar',0.65,1,'Gram');
Second Some recipes :-
INSERT INTO receitas VALUES ('Bread'),('Cake'),('Scone');
Now the ingredients used by recipes (just Bread and Cakes) :-
INSERT INTO receitas_materia VALUES
('Bread',1 /*map to Plain Flour*/,200 /* uses 200 grams */),
('Bread',3,2),
('Bread',4,50),
('Bread',5,10),
('Cake',2,400),
('Cake',3,3),
('Cake',4,100),
('Cake',5,300)
;
So instead of many columns and the complexity of trying to determine what goes into what column. You simply add as many ingredients per recipe as is required (and let the queries do the work).
A Query such as :-
SELECT *, valor * receitas_materia_qtd AS cost
FROM receitas JOIN receitas_materia ON receitas_materia.titulo_map = receitas.titulo JOIN materia_prima ON materia_prima.codigo = receitas_materia.materia_map;
Could be used to list the product and it's ingredients including the cost per ingredient e.g. using the above the results is:-
e.g. Bread uses 200g of sugar which costs 0.54 per gram so therefore the cost of sugar for bread is 108.
You would appear to want the total cost per item so a query something like :-
SELECT titulo, group_concat(produto||' ('||receitas_materia_qtd||' '||tipo||')') AS materias, sum(valor * receitas_materia_qtd) AS total_cost
FROM receitas JOIN receitas_materia ON receitas_materia.titulo_map = receitas.titulo JOIN materia_prima ON materia_prima.codigo = receitas_materia.materia_map
GROUP BY titulo;
Could be used, this results in :-
Android based Example
The following is a basic example that allows ingredients to be added to a recipe via a spinner. The current ingredients are also listed allowing an ingredient to also be removed by long clicking the ingredient.
The example utilises Cursor Adapters which are simpler to work with.
First is MyDatabase which uses the suggested design and includes methods the various methods:-
public class MyDatabase extends SQLiteOpenHelper {
private static final String DATABASE_NAME = "BancoDoceDaisy.db";
private static final int DATABASE_VERSION = 9;
SQLiteDatabase db;
public static final String TABLE_PRODUTO = "materia_prima";
public static final String COLUMN_PRODUTO_CODIGO = BaseColumns._ID; /*CHANGED Use the standard Android ID column name */
public static final String COLUMN_PRODUTO = "produto";
public static final String COLUMN_VALOR = "valor";
public static final String COLUMN_QTD = "quantidade";
public static final String COLUMN_TIPO = "tipo";
public static final String TABLE_RECEITA = "receitas";
public static final String COLUMN_RECEITA_CODIGO = BaseColumns._ID;
public static final String COLUMN_TITULO = "titulo";
public static final String TABLE_RECEITA_MATERIA_MAP = TABLE_RECEITA + "_" + TABLE_PRODUTO + "_map";
public static final String COLUMN_RECEITA_MAP = TABLE_RECEITA + "_map";
public static final String COLUMN_PRODUTO_MAP = TABLE_PRODUTO + "_map";
public static final String COLUMN_RECEITA_QTD = TABLE_RECEITA + "_" + COLUMN_QTD;
public static final String DERIVED_COLUMN_COST = "cost";
private static final String cost_calculate = TABLE_PRODUTO + "." + COLUMN_VALOR + " * " + TABLE_RECEITA_MATERIA_MAP + "." + COLUMN_RECEITA_QTD + " AS " + DERIVED_COLUMN_COST;
public static final String DERIVED_COLUMN_TOTAL_COST = "total_cost";
private static final String total_cost_calculate = "SUM(" + TABLE_PRODUTO + "." + COLUMN_VALOR + " * " + TABLE_RECEITA_MATERIA_MAP + "." + COLUMN_QTD + ") AS " + DERIVED_COLUMN_TOTAL_COST;
private final String join_receitamateria_map =
" JOIN " + TABLE_RECEITA_MATERIA_MAP +
" ON " + TABLE_RECEITA + "." + COLUMN_RECEITA_CODIGO +
" = " + TABLE_RECEITA_MATERIA_MAP + "." + COLUMN_RECEITA_MAP;
private final String join_produto =
" JOIN " + TABLE_PRODUTO +
" ON " + TABLE_RECEITA_MATERIA_MAP + "." + COLUMN_PRODUTO_MAP +
" = " + TABLE_PRODUTO + "." + COLUMN_PRODUTO_CODIGO;
private static final String fkey_options = " ON DELETE CASCADE ON UPDATE CASCADE ";
private static volatile MyDatabase instance = null;
private MyDatabase(#Nullable Context context) {
super(context, DATABASE_NAME, null, DATABASE_VERSION);
db = this.getWritableDatabase();
}
public static MyDatabase getDatabaseInstance(Context context) {
if (instance == null) {
instance = new MyDatabase(context);
}
return instance;
}
#Override
public void onCreate(SQLiteDatabase db) {
String query = "CREATE TABLE "+ TABLE_PRODUTO +
" (" + COLUMN_PRODUTO_CODIGO + " INTEGER PRIMARY KEY, " +
COLUMN_PRODUTO + " TEXT, " +
COLUMN_VALOR + " FLOAT, " +
COLUMN_QTD + " FLOAT, " +
COLUMN_TIPO + " TEXT); ";
db.execSQL(query);
query = "CREATE TABLE IF NOT EXISTS " + TABLE_RECEITA + "(" +
COLUMN_RECEITA_CODIGO + " INTEGER PRIMARY KEY ," + /* ADDED to make things simpler android wise */
COLUMN_TITULO + " TEXT UNIQUE" +
")";
db.execSQL(query);
query = "CREATE TABLE IF NOT EXISTS " +TABLE_RECEITA_MATERIA_MAP + "(" +
COLUMN_RECEITA_MAP + " INTEGER REFERENCES " + TABLE_RECEITA + "(" + COLUMN_PRODUTO_CODIGO + ")" + fkey_options + "," +
COLUMN_PRODUTO_MAP + " INTEGER REFERENCES " + TABLE_PRODUTO + "(" + COLUMN_RECEITA_CODIGO + ")" + fkey_options + "," +
COLUMN_RECEITA_QTD + " FLOAT, " +
"PRIMARY KEY(" + COLUMN_RECEITA_MAP + "," + COLUMN_PRODUTO_MAP + ")" +
")";
db.execSQL(query);
}
#Override
public void onUpgrade(SQLiteDatabase db, int i, int i1) {
}
public long insertProduto(String produto,Float valor, Float qtd, String tipo) {
ContentValues cv = new ContentValues();
cv.put(COLUMN_PRODUTO,produto);
cv.put(COLUMN_VALOR,valor);
cv.put(COLUMN_QTD,qtd);
cv.put(COLUMN_TIPO,tipo);
return db.insert(TABLE_PRODUTO,null,cv);
}
public long insertReceita(String titulo) {
ContentValues cv = new ContentValues();
cv.put(COLUMN_TITULO,titulo);
return db.insert(TABLE_RECEITA,null,cv);
}
public long insertReceitaMateria(long receitaMap, long produtoMap, Float qtd) {
ContentValues cv = new ContentValues();
cv.put(COLUMN_RECEITA_MAP,receitaMap);
cv.put(COLUMN_PRODUTO_MAP,produtoMap);
cv.put(COLUMN_RECEITA_QTD,qtd);
return db.insert(TABLE_RECEITA_MATERIA_MAP,null,cv);
}
public int deleteMateriaFromReceita(long receita, long produtoCodigo) {
return db.delete(TABLE_RECEITA_MATERIA_MAP,COLUMN_RECEITA_MAP + " =? AND " + COLUMN_PRODUTO_MAP + "=?",new String[]{String.valueOf(receita), String.valueOf(produtoCodigo)});
}
public Cursor getProduto() {
return db.query(TABLE_PRODUTO,null,null,null,null,null,null);
}
public Cursor getReceita() {
return db.query(TABLE_RECEITA,null,null,null,null,null,null);
}
public Cursor getReceitaProduto(Long receita) {
return db.query(
TABLE_RECEITA + join_receitamateria_map + join_produto,
new String[]{"*",cost_calculate},
TABLE_RECEITA_MATERIA_MAP + "." + COLUMN_RECEITA_MAP + "=?",new String[]{receita.toString()},null,null,null);
}
public String getReceitanameByCodigo(long codigo) {
String rv = "NOT KNOWN";
Cursor csr =db.query(TABLE_RECEITA,new String[]{COLUMN_TITULO},COLUMN_RECEITA_CODIGO + "=?",new String[]{String.valueOf(codigo)},null,null,null);
if (csr.moveToFirst()) {
rv = csr.getString(csr.getColumnIndex(COLUMN_TITULO));
}
csr.close();
return rv;
}
}
Next is an initial activity MainActivity (designed to only run once) that adds some materia/produtos (ingredients) and some blank (no ingredients) receitas (recipes). After which the AddProduto activity is invoked passing the Cake recipe to the activity :-
public class MainActivity extends AppCompatActivity {
MyDatabase db;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
db = MyDatabase.getDatabaseInstance(this);
db.insertProduto("Plain Flour",0.54F,1F,"Grams");
db.insertProduto("SR Flour",0.55F,1F,"Grams");
db.insertProduto("Eggs",1.34F,1f,"Each");
db.insertProduto("Milk",0.2F,1F,"ml");
db.insertProduto("Sugar",0.65F,1F,"Grams");
db.insertReceita("Bread");
long selectedId = db.insertReceita("Cake");
db.insertReceita("Scone");
Intent intent = new Intent(this,AddProduto.class);
intent.putExtra(MyDatabase.TABLE_RECEITA,selectedId);
startActivity(intent);
}
}
Finally is the AddProduto activity. This has a spinner that allows selection of an ingredient(s). Selecting an ingredient adds the ingredient to the recipe and the recipe's ingredients are then refreshed to show the added ingredient. If an ingredient in the list of ingredients is long clicked it is removed from the recipe.
Note only very basic management is incorporated. e.g. really the ingredients in the spinner should exclude those already in the recipe.
The amount/quantity of the ingredient is set to be 100 for simplicity/brevity of the demo/example:-
public class AddProduto extends AppCompatActivity {
TextView receita;
Spinner materia_add;
ListView materia_in;
SimpleCursorAdapter adapter_list, adapter_spinner;
MyDatabase db;
Cursor csr_add, csr_in;
long current_receita;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_add_produto);
db = MyDatabase.getDatabaseInstance(this);
receita = this.findViewById(R.id.Receita);
current_receita = this.getIntent().getLongExtra(MyDatabase.TABLE_RECEITA,0);
receita.setText(db.getReceitanameByCodigo(current_receita));
materia_add = this.findViewById(R.id.materia_add);
materia_in = this.findViewById(R.id.materia_in);
setOrRefreshSpinner();
setOrRefreshReceitaList();
}
// Handling the Spinner
private void setOrRefreshSpinner() {
csr_add = db.getProduto();
if (adapter_spinner == null) {
adapter_spinner = new SimpleCursorAdapter(
this,
android.R.layout.simple_list_item_2,
csr_add,
new String[]{MyDatabase.COLUMN_PRODUTO, MyDatabase.COLUMN_VALOR},
new int[]{android.R.id.text1, android.R.id.text2},0
);
materia_add.setAdapter(adapter_spinner);
materia_add.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> adapterView, View view, int i, long l) {
db.insertReceitaMateria(current_receita,l,100F); // Made up value for demo
setOrRefreshReceitaList(); // Update the List of materia in the receita
}
#Override
public void onNothingSelected(AdapterView<?> adapterView) {
}
});
} else {
adapter_spinner.swapCursor(csr_add);
}
}
// Handling the recipe ListView
private void setOrRefreshReceitaList() {
csr_in = db.getReceitaProduto(current_receita);
if (adapter_list == null) {
adapter_list = new SimpleCursorAdapter(
this,
android.R.layout.simple_list_item_2,
csr_in,
new String[]{MyDatabase.COLUMN_PRODUTO,MyDatabase.DERIVED_COLUMN_COST},
new int[]{android.R.id.text1,android.R.id.text2},
0
);
materia_in.setAdapter(adapter_list);
materia_in.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {
#Override
public boolean onItemLongClick(AdapterView<?> adapterView, View view, int i, long l) {
db.deleteMateriaFromReceita(current_receita,l);
setOrRefreshReceitaList();
return true;
}
});
} else {
adapter_list.swapCursor(csr_in);
}
}
#Override
protected void onDestroy() {
super.onDestroy();
csr_in.close();
csr_add.close();
}
}
Result
When first run the AddProduto activity is displayed (after MainActivity starts it) :-
Note that handling the fact that the Spinner automatically selects an Item has not been included so an ingredient is added before any selection is made (see Android Spinner : Avoid onItemSelected calls during initialization in regrad to avoiding this).
Purple is the Spinner
teal is the recipe's list of ingredients (with the total cost of the ingredient i.e. 100 * the ingredient cost).
Select Eggs from the Spinner :-
And then after selection (adding Eggs) :-
LongClick Plain Flour in the List of ingredients :-

How to get a Cursor in sqlite db to work?

Ive made a user register activity and it succesfully adds the user details to the database but now I am trying to get the user to be able to login with the same details but I have ran into a problem where I have a error in the code below saying comma or semi column needed but I dont think thats the correct answer to my problem. Can anyone see why my error would be happening? The error is where it says "SELECT * FROM" the from is the error and "WHERE" is the other error.
MainActivity class:
public class MainActivity extends AppCompatActivity {
SQLiteDatabase db;
SQLiteOpenHelper openHelper;
Cursor cursor;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
openHelper = new DatabaseHelperUser(this);
db = openHelper.getReadableDatabase();
final EditText userEdit = findViewById(R.id.editTextUsername);
final EditText passwordEdit = findViewById(R.id.editTextTextPassword);
final Button loginBt = findViewById(R.id.buttonLogin);
loginBt.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
String userEt = userEdit.getText().toString();
String userP = passwordEdit.getText().toString();
cursor = db.rawQuery("SELECT * FROM" + DatabaseHelperUser.TABLE_NAME + "WHERE" + DatabaseHelperUser.COL2 + "=? AND" + DatabaseHelperUser.COL3 + "=?", new String[]{userEt, userP});
DatabaseHelperUser class:
public class DatabaseHelperUser extends SQLiteOpenHelper {
public static final String DATABASE_NAME = "User.db";
public static final String TABLE_NAME = "User_table";
public static final String COL1 = "UserNum";
public static final String COL2 = "UserName";
public static final String COL3 = "Password";
public static final String COL4 = "BirthDate";
public static final String COL5 = "Phone";
public static final String COL6 = "Address";
public DatabaseHelperUser(Context context){
super(context, DATABASE_NAME, null, 1);
}
#Override
public void onCreate(SQLiteDatabase db) {
db.execSQL("create table " + TABLE_NAME + " (UserNum TEXT,UserName Text,Password Text,BirthDate Text,Phone Text,Address Text)");
}
#Override
public void onUpgrade(SQLiteDatabase db, int i, int i1) {
db.execSQL("DROP TABLE IF EXISTS " + TABLE_NAME);
onCreate(db);
}
}

Please include the full text of the error in your question, but it looks to me like:
cursor = db.rawQuery("SELECT * FROM" + DatabaseHelperUser.TABLE_NAME
+ "WHERE" + DatabaseHelperUser.COL2 +
"=? AND" + DatabaseHelperUser.COL3 + "=?",
new String[]{userEt, userP});
I see that there is no trailing space after FROM, WHERE and AND, and since your TABLE_NAME etc does not have a leading space, FROMUser_tableWHEREUserName is going to be a syntax error.

You must add space to command FROM , WHERE, AND :
cursor = db.rawQuery("SELECT * FROM " + DatabaseHelperUser.TABLE_NAME + " WHERE " + DatabaseHelperUser.COL2 + "=? AND " + DatabaseHelperUser.COL3 + "=?", new String[]{userEt, userP});

database.sqlite.SQLiteOpenHelper.getDatabaseLocked+Null PointerExpception Error Android Studio

I am working on android application that need to get data from table using sqlite and show the specific items in the list view. As I try to run the application the application got error getDatabaseLocked and show error on sqlite database...
here is my sqlite file..
{
private static final int DATABASE_VERSION = 2;
Context context;
private static final String DATABASE_NAME = "DynamicERP.db";
public static final String table_orders = "TABLEORDERS";
public static final String table_poducts_records = "PRODUCTSRECORDS";
public static final String code = "ORDERCODE";
public static final String barcode = "BARCODE";
public static final String nametblp = "NAME";
public static final String size = "SIZE";
public static final String uname = "UNAME";
public static final String retail = "RETAIL";
public static final String wholesale = "WHOLESALE";
public static final String trade = "TRADE";
public static final String percentage = "PERCENTAGE";
public static final String tax = "TAX";
public static final String subcatagary = "SUBCATAGARY";
public static final String categary = "CATEGARY";
public static final String company = "COMPANY";
public static final String type = "TYPE";
public static final String packsize = "PACKSIZE";
public static final String weight = "WEIGHT";
public static final String weightunit = "WEIGHTUNIT";
public static final String currentstock = "CURRENTSTOCK";
public static final String salecode = "SALECODE";
public static final String mcode = "MCODE";
public static final String fname = "FIRSTNAME";
public static final String lname = "LASTNAME";
public static final String urduname = "URDUNAME";
public static final String address = "ADDRESS";
public static final String contact = "CONTACT";
public static final String cnic = "CNIC";
public static final String saletype = "TYPE";
public static final String route = "ROUTE";
public static final String area = "AREA";
public static final String zone = "ZONE";
public static final String balance = "BALANCE";
public static final String creditlimit = "CREDITLIMIT";
public static final String spl = "SPL";
public static final String saletax = "SALETAX";
private static final String DATABASE_ORDERS = "CREATE TABLE " + table_orders + "("
+ code + " INTEGER, " + barcode + " VARCHAR," + nametblp + " VARCHAR," + size + " VARCHAR," + uname +
" VARCHAR," + retail + " VARCHAR," + wholesale + " VARCHAR," + trade + " VARCHAR,"
+ percentage + " VARCHAR," + tax + " VARCHAR," + subcatagary + " VARCHAR," + categary + " VARCHAR," +
company + " VARCHAR," + type + " VARCHAR," + packsize + " VARCHAR," +
weight + " VARCHAR," + weightunit + " VARCHAR, " + currentstock + " VARCHAR );";
private static final String DATABASE_PRODUCTS = "CREATE TABLE " + table_poducts_records + "("
+ salecode + " INTEGER, " + mcode + " VARCHAR, " + fname + " VARCHAR, " + lname + " VARCHAR, " + urduname +
" VARCHAR, " + address + " NVARCHAR, " + contact + " VARCHAR," + cnic + " VARCHAR, " + saletype + " VARCHAR,"
+ route + " VARCHAR, " + area + " VARCHAR," + zone + " VARCHAR," +
balance + " VARCHAR, " + creditlimit + " VARCHAR," + spl + " VARCHAR, " + saletax + " VARCHAR);";
private String DROP_ORDER_REC = "DROP TABLE IF EXISTS " + table_orders;
private String DROP_PRODUCTS_REC = "DROP TABLE IF EXISTS " + table_poducts_records;
public DatabaseHelper(Context context) {
super(context, DATABASE_NAME, null, DATABASE_VERSION);
}
#Override
public void onCreate(SQLiteDatabase db) {
db.execSQL(DATABASE_ORDERS);
db.execSQL(DATABASE_PRODUCTS);
}
#Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
db.execSQL(DROP_PRODUCTS_REC);
db.execSQL(DROP_ORDER_REC);
onCreate(db);
}
public List<GetSetOrders> getAllOrderData() {
String[] columns = {
nametblp,
code,
retail,
subcatagary,
company
};
String sortOrder = code + " ASC";
SQLiteDatabase db = this.getReadableDatabase();
db.isOpen();
List<GetSetOrders> clientlist = new ArrayList<GetSetOrders>();
Cursor cursor = db.query(table_poducts_records, //Table to query
columns, //columns to return
null, //columns for the WHERE clause
null, //The values for the WHERE clause
null, //group the rows
null, //filter by row groups
sortOrder); //The sort order
if (cursor.moveToFirst()) {
do {
GetSetOrders orders = new GetSetOrders();
orders.setNAME(cursor.getString(cursor.getColumnIndex(nametblp)));
orders.setORDERCODE(cursor.getString(cursor.getColumnIndex(code)));
orders.setRETAIL(cursor.getString(cursor.getColumnIndex(retail)));
orders.setCATEGARY(cursor.getString(cursor.getColumnIndex(subcatagary)));
orders.setCOMPANY(cursor.getString(cursor.getColumnIndex(company)));
clientlist.add(orders);
} while (cursor.moveToNext());
}
cursor.close();
db.close();
return clientlist;
}
Here is my crash log which shows the error of the database close
Caused by: java.lang.NullPointerException
at android.database.sqlite.SQLiteOpenHelper.getDatabaseLocked(SQLiteOpenHelper.java:224)
at android.database.sqlite.SQLiteOpenHelper.getReadableDatabase(SQLiteOpenHelper.java:188)
at com.example.tablewithlist.DatabaseHelper.getAllOrderData(DatabaseHelper.java:182)
at com.example.tablewithlist.Clients$2.doInBackground(Clients.java:67)
at com.example.tablewithlist.Clients$2.doInBackground(Clients.java:63)
at android.os.AsyncTask$2.call(AsyncTask.java:287)
Here is my Adapter Class
{
private List<GetSetOrders> listOrders;
Context mContext;
RecyclerView mRecyclerView;
View itemView;
public ClientRecyclerAdapter(List<GetSetOrders> listOrders, RecyclerView recyclerView) {
this.listOrders = listOrders;
mRecyclerView = recyclerView;
}
#Override
public ClientViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
mContext = parent.getContext();
itemView = LayoutInflater.from(parent.getContext())
.inflate(R.layout.items_products_table, parent, false);
return new ClientViewHolder(itemView);
}
public class ClientViewHolder extends RecyclerView.ViewHolder {
//public AppCompatTextView ID;
public TextView lblPName;
public TextView lblTrade;
public TextView lblRetail;
public TextView lblSubCategary;
public TextView lblCompany;
RelativeLayout layout;
public ClientViewHolder(View view) {
super(view);
lblPName = view.findViewById(R.id.lblPName);
lblTrade = view.findViewById(R.id.lblTrade);
lblRetail = view.findViewById(R.id.lblRetail);
lblSubCategary = view.findViewById(R.id.lblSubCategary);
lblCompany = view.findViewById(R.id.lblCompany);
layout = view.findViewById(R.id.listprod);
}
}
#Override
public void onBindViewHolder(ClientViewHolder holder, final int position) {
holder.lblPName.setText(listOrders.get(position).getNAME());
holder.lblTrade.setText(listOrders.get(position).getORDERCODE());
holder.lblRetail.setText(listOrders.get(position).getRETAIL());
holder.lblSubCategary.setText(listOrders.get(position).getSUBCATAGARY());
holder.lblCompany.setText(listOrders.get(position).getCOMPANY());
holder.layout.setOnLongClickListener(new View.OnLongClickListener() {
#Override
public boolean onLongClick(View v) {
Toast.makeText(mContext, "ABC", Toast.LENGTH_SHORT).show();
return false;
}
});
}
#Override
public int getItemCount() {
Log.v(ClientRecyclerAdapter.class.getSimpleName(), "" + listOrders.size());
return listOrders.size();
}
}
This is the main class where I am calling the function of the database...
{
Activity activity;
RecyclerView recyclerViewClients;
Button btnAll;
ClientRecyclerAdapter clientRecyclerAdapter;
List<GetSetOrders> listclients;
DatabaseHelper databaseHelper;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.clients, container, false);
btnAll=view.findViewById(R.id.searchall);
recyclerViewClients=view.findViewById(R.id.Viewclients);
listclients = new ArrayList<>();
clientRecyclerAdapter = new ClientRecyclerAdapter(listclients,recyclerViewClients);
recyclerViewClients.setItemAnimator(new DefaultItemAnimator());
recyclerViewClients.setItemAnimator(new DefaultItemAnimator());
recyclerViewClients.setHasFixedSize(true);
recyclerViewClients.setAdapter(clientRecyclerAdapter);
databaseHelper = new DatabaseHelper(activity);
btnAll.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
getClientFromSqlite();
Toast.makeText(getActivity(), "Usman", Toast.LENGTH_SHORT).show();
}
});
return view;
}
private void getClientFromSqlite() {
new AsyncTask<Void, Void, Void>() {
#Override
protected Void doInBackground(Void... params) {
listclients.clear();
listclients.addAll(databaseHelper.getAllOrderData());
// clientRecyclerAdapter.notifyDataSetChanged();
return null;
}
#Override
protected void onPostExecute(Void aVoid) {
super.onPostExecute(aVoid);
clientRecyclerAdapter.notifyDataSetChanged();
}
}.execute();
}
}
Here is my Fragment activity which contain Viewpager class client..
{
DatabaseHelper databaseHelper;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main_fragment);
databaseHelper=new DatabaseHelper(this);
Toolbar toolbar = findViewById(R.id.toolbar);
toolbar.setTitle("Dynamic ERPMini");
TabLayout tabLayout = findViewById(R.id.tab_layout);
tabLayout.addTab(tabLayout.newTab().setText("Clients"));
tabLayout.addTab(tabLayout.newTab().setText("Products"));
tabLayout.addTab(tabLayout.newTab().setText("Invoices"));
tabLayout.setTabGravity(TabLayout.GRAVITY_FILL);
final ViewPager viewPager = findViewById(R.id.pager);
final PagerAdapter adapter = new PagersAdapter(getSupportFragmentManager(), tabLayout.getTabCount());
viewPager.setAdapter(adapter);
viewPager.addOnPageChangeListener(new TabLayout.TabLayoutOnPageChangeListener(tabLayout));
tabLayout.setOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
#Override
public void onTabSelected(TabLayout.Tab tab) {
viewPager.setCurrentItem(tab.getPosition());
}
#Override
public void onTabUnselected(TabLayout.Tab tab) {
}
#Override
public void onTabReselected(TabLayout.Tab tab) {
}
});
}
}
The New Error Crash Log by updating the code..
android.database.sqlite.SQLiteException: no such column: NAME (code 1): , while compiling: SELECT NAME, ORDERCODE, RETAIL, SUBCATAGARY, COMPANY FROM PRODUCTSRECORDS ORDER BY ORDERCODE ASC
at android.database.sqlite.SQLiteConnection.nativePrepareStatement(Native Method)
at android.database.sqlite.SQLiteConnection.acquirePreparedStatement(SQLiteConnection.java:882)
at android.database.sqlite.SQLiteConnection.prepare(SQLiteConnection.java:493)
at android.database.sqlite.SQLiteSession.prepare(SQLiteSession.java:588)
at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java:58)
at android.database.sqlite.SQLiteQuery.<init>(SQLiteQuery.java:37)
at android.database.sqlite.SQLiteDirectCursorDriver.query(SQLiteDirectCursorDriver.java:44)
at android.database.sqlite.SQLiteDatabase.rawQueryWithFactory(SQLiteDatabase.java:1314)
at android.database.sqlite.SQLiteDatabase.queryWithFactory(SQLiteDatabase.java:1161)
at android.database.sqlite.SQLiteDatabase.query(SQLiteDatabase.java:1032)
at android.database.sqlite.SQLiteDatabase.query(SQLiteDatabase.java:1200)
at com.example.tablewithlist.DatabaseHelper.getAllOrderData(DatabaseHelper.java:175)
at com.example.tablewithlist.Clients$2.doInBackground(Clients.java:65)
at com.example.tablewithlist.Clients$2.doInBackground(Clients.java:61)
at android.os.AsyncTask$2.call(AsyncTask.java:287)

Could you check the context received by DataBaseHelper constructor. May be it has NULL value.
Try this,
databaseHelper = new DatabaseHelper(getActivity());
For Second issue, You need to revisit to your table structure or query construction. Error log said there is no column named as "NAME" in table which is your querying table. Please check once again the basics.

java.lang.NoSuchMethodException: perfIOPrefetchStart [duplicate]

public class Main2Activity extends AppCompatActivity {
private EditText editText1, editText2, editText3, editText4;
private Button button;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
editText1 = (EditText) findViewById(R.id.editText);
editText2 = (EditText) findViewById(R.id.editText2);
editText3 = (EditText) findViewById(R.id.editText3);
editText4 = (EditText) findViewById(R.id.editText4);
button = (Button) findViewById(R.id.button3);
button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
String un, pw, cpw, ph;
un = editText1.getText().toString();
pw = editText2.getText().toString();
cpw = editText3.getText().toString();
ph = editText4.getText().toString();
DbHelper dbHelpero = new DbHelper(Main2Activity.this);
SQLiteDatabase db = dbHelpero.getWritableDatabase();
ContentValues values = new ContentValues();
values.put(Entry.C_UNAME, un);
values.put(Entry.C_PASS, pw);
values.put(Entry.C_CPASS, cpw);
values.put(Entry.C_PNO, ph);
long newRowId = db.insert(Entry.TABLE_NAME, null, values);
if (newRowId == -1) {
Toast.makeText(getApplicationContext(), "Error while adding", Toast.LENGTH_SHORT).show();
} else {
Toast.makeText(getApplicationContext(), "Yo Registration is complete", Toast.LENGTH_SHORT).show();
}
}
});
}
}
Here is the Contract.java
public class Contract {
private Contract() {
}
public static final class Entry implements BaseColumns {
public final static String TABLE_NAME = "details";
public final static String _ID = BaseColumns._ID;
public final static String C_UNAME = "uname";
public final static String C_PASS = "pw";
public final static String C_CPASS = "cpw";
public final static String C_PNO = "pno";
}
}
And the DbHelper.java
public class DbHelper extends SQLiteOpenHelper {
public static final String LOG_TAG = DbHelper.class.getSimpleName();
public final static String DATABASE_NAME = "contacts.db";
private static final int DATABASE_VERSION = 1;
public DbHelper(Context context) {
super(context, DATABASE_NAME, null, DATABASE_VERSION);
}
#Override
public void onCreate(SQLiteDatabase db) {
String CREATE_TABLE = "CREATE TABLE " + Entry.TABLE_NAME + " ("
+ Entry._ID + " TEXT PRIMARY KEY AUTOINCREMENT, "
+ Entry.C_UNAME + " TEXT, "
+ Entry.C_PASS + " TEXT, "
+ Entry.C_CPASS + " TEXT, "
+ Entry.C_PNO + " TEXT" + ")";
db.execSQL(CREATE_TABLE);
}
#Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
}
}
There are no syntax errors but still, the app is crashing.

Replace your CREATE_TABLE query with:
String CREATE_TABLE = "CREATE TABLE " + Entry.TABLE_NAME + " ("
+ Entry._ID + " INTEGER PRIMARY KEY AUTOINCREMENT, "
+ Entry.C_UNAME + " TEXT, "
+ Entry.C_PASS + " TEXT, "
+ Entry.C_CPASS + " TEXT, "
+ Entry.C_PNO + " TEXT" + ")";
You can't have a TEXT type have an AUTOINCREMENT property as you currently have it on your _ID field. You need to change it to be an INTEGER so it can be used as PRIMARY KEY and then have it AUTOINCREMENT

Updating Database in Android

I am updating a record in Sqlite database through the function given below.Their is only 1 Table and a number of columns.Initially i am updating 3 columns. Problem i am facing :
1) The Problem is that in Logcat initial data is shown but updated data is not showing. Also Logcat not showing any error.
2) When i am displaying in Toast only last value which i added in database statically is showing. Initial two are not present in Toast.
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.util.Log;
public class ContractSqlite extends SQLiteOpenHelper {
private static final int DATABASE_VERSION = 1;
private static final String DATABASE_NAME = "thorcontract_Db";
// TABLE NAME
private static final String TABLE_NAME = "contract";
// COLUMN
private static final String PRIMARY_COLUMN = "heading";
private static final String CONTRACT_TITLES_TITLE = "cnttitle";
private static final String CONTRACT_TITLES_SUBTITLE = "cntSUBTITLE";
private static final String CONTRACT_TITLES_BIDID = "cntbidid";
private static final String LOADSUMMARY_HEADER = "lsheader";
private static final String LOADSUMMARY_FOOTER = "lsfooter";
private static final String SECTION1_TITLE = "s1title";
private static final String SECTION1_BODY = "s1body";
private static final String SECTION2_TITLE = "s2title";
private static final String SECTION2_BODY = "s2body";
private static final String SECTION3_TITLE = "s3title";
private static final String SECTION3_BODY = "s3body";
private static final String SECTION4_TITLE = "s4title";
private static final String SECTION4_BODY = "s4body";
private static final String SECTION5_TITLE = "s5title";
private static final String SECTION5_BODY = "s5body";
private static final String SECTION6_TITLE = "s6title";
private static final String SECTION6_BODY = "s6body";
private static final String SECTION7_TITLE = "s7title";
private static final String SECTION7_BODY = "s7body";
private static final String SECTION8_TITLE = "s8title";
private static final String SECTION8_BODY = "s8body";
private static final String SECTION9_TITLE = "s9title";
private static final String SECTION9_BODY = "s9body";
private String title = null, subtitle = null, bidid = null;
public ContractSqlite(Context context) {
super(context, DATABASE_NAME, null, DATABASE_VERSION);
// TODO Auto-generated constructor stub
}
#Override
public void onCreate(SQLiteDatabase db) {
// TODO Auto-generated method stub
String CREATE_CONTRACT_TABLE = " CREATE TABLE " + TABLE_NAME + "("
+ PRIMARY_COLUMN + " INTEGER PRIMARY KEY,"
+ CONTRACT_TITLES_TITLE + " TEXT ," + CONTRACT_TITLES_SUBTITLE
+ " TEXT ," + CONTRACT_TITLES_BIDID + " TEXT,"
+ LOADSUMMARY_HEADER + " TEXT," + LOADSUMMARY_FOOTER + " TEXT,"
+ SECTION1_TITLE + " TEXT," + SECTION1_BODY + " TEXT,"
+ SECTION2_TITLE + " TEXT," + SECTION2_BODY + " TEXT,"
+ SECTION3_TITLE + " TEXT," + SECTION3_BODY + " TEXT,"
+ SECTION4_TITLE + " TEXT," + SECTION4_BODY + " TEXT,"
+ SECTION5_TITLE + " TEXT," + SECTION5_BODY + " TEXT,"
+ SECTION6_TITLE + " TEXT," + SECTION6_BODY + " TEXT,"
+ SECTION7_TITLE + " TEXT," + SECTION7_BODY + " TEXT,"
+ SECTION8_TITLE + " TEXT," + SECTION8_BODY + " TEXT,"
+ SECTION9_TITLE + " TEXT," + SECTION9_BODY + " TEXT" + ")";
db.execSQL(CREATE_CONTRACT_TABLE);
}
#Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
// TODO Auto-generated method stub
db.execSQL("DROP TABLE" + TABLE_NAME);
onCreate(db);
}
public void addRecord(String title, String subtitle, String bidid) {
SQLiteDatabase db = this.getWritableDatabase();
// String title1 = title;
// String subtitle1 = subtitle;
// String bidid1 = bidid;
ContentValues values = new ContentValues();
try {
values.put(CONTRACT_TITLES_TITLE, title);
values.put(CONTRACT_TITLES_SUBTITLE, subtitle);
values.put(CONTRACT_TITLES_BIDID, bidid);
db.insert(TABLE_NAME, null, values);
Log.i("Initial Data", " " + title + " " + subtitle + " " + bidid);
db.close();
} catch (Exception e) {
db.close();
}
}
public String[] getrecord() {
String selectQuery = "SELECT * FROM " + TABLE_NAME;
SQLiteDatabase db = this.getWritableDatabase();
Cursor cursor = db.rawQuery(selectQuery, null);
if (cursor != null && cursor.moveToFirst()) {
title = cursor.getString(cursor
.getColumnIndex(CONTRACT_TITLES_TITLE));
subtitle = cursor.getString(cursor
.getColumnIndex(CONTRACT_TITLES_SUBTITLE));
bidid = cursor.getString(cursor
.getColumnIndex(CONTRACT_TITLES_BIDID));
// Dumps "Title: Test Title Content: Test Content"
Log.i("CONTRACTTITLES", "Title: " + title + " Content: " + subtitle);
cursor.close();
}
return new String[] { title, subtitle, bidid };
}
public int update(String title, String subtitle, String id) {
SQLiteDatabase db = this.getWritableDatabase();
ContentValues values = new ContentValues();
values.put(CONTRACT_TITLES_TITLE, title);
values.put(CONTRACT_TITLES_SUBTITLE, subtitle);
values.put(CONTRACT_TITLES_SUBTITLE, id);
return db.update(TABLE_NAME, values, PRIMARY_COLUMN + " =?",
new String[] { String.valueOf(1) });
}
}
Method Calling From Main Activity.
csq is database class object
for adding a record
csq.addRecord("abc", "xyz", "1234");
for updating
csq.update(cnttitle_str, cntsubtitle_str, cntbid_str);
for getting a record
String[] str = csq.getrecord();
Toast.makeText(getActivity(),
" " + str[0] + " " + str[1] + "" + str[2], Toast.LENGTH_LONG).show();

Updated data is not showing because you don't have a Log line there (if I understand you correctly).
You only get one line because you need to iterate through the Cursor and return a list or some such.

this sulotion is :
if you want to see all record , do this in your Database class :
public void showAllDBcells() {
String selectQuery = "SELECT * FROM " + TABLE_DB;
SQLiteDatabase db = this.getWritableDatabase();
Cursor cursor = db.rawQuery(selectQuery, null);
if (cursor.moveToFirst()) {
do {
Log.d("your tag",cursor.getString(0));
Log.d("your tag",cursor.getString(1));
Log.d("your tag",cursor.getString(2));
// and for another data , just extends code for 3 4 5 ... columns
} while (cursor.moveToNext());
}
//
cursor.close();
db.close();
}
you can call method in your activity , and see your stored data from Database in Logcat .

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