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How stop text to speech in Base adapter

I have a custom ListView with BaseAdapter. In this custom ListView when a user clicks on any particular text, it speaks the text but the problem is that when any user clicks on the back button how to stop this text from the BaseAdapter. I know how to stop from an Activity but don't know how to stop from BaseAdapter when the user presses back button. Here is my code:
package bible.swordof.God;
import android.app.Activity;
import android.content.ContentValues;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.graphics.Color;
import android.os.Vibrator;
import android.speech.tts.TextToSpeech;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.CompoundButton;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.ToggleButton;
import java.util.ArrayList;
import java.util.List;
import java.util.Locale;
import java.util.zip.Inflater;
import es.dmoral.toasty.Toasty;
import petrov.kristiyan.colorpicker.ColorPicker;
import static android.content.Context.MODE_PRIVATE;
public class BaseAdopter extends BaseAdapter implements TextToSpeech.OnInitListener{
public BaseAdopter(Context context, List<String> versenumber, List<String> verseid, List<String> verselist, List<String> refernce) {
this.context = context;
this.versenumber = versenumber;
this.verseid = verseid;
this.verselist = verselist;
this.refernce = refernce;
}
ALLVERSE allverse;
ArrayList<String> colors;
private Context context;
private List<String> versenumber;
private List<String>verseid;
private List<String> verselist;
private List<String> refernce;
TextToSpeech textToSpeech;
private DatabaseHelper mDBHelper;
private SQLiteDatabase mDb;
#Override
public int getCount() {
return versenumber.size();
}
#Override
public Object getItem(int position) {
return null;
}
#Override
public long getItemId(int position) {
return 0;
}
#Override
public View getView(final int position, View convertView, ViewGroup parent) {
LayoutInflater inflater = (LayoutInflater)context.getSystemService(Activity.LAYOUT_INFLATER_SERVICE);
View view=inflater.inflate(R.layout.versedisplayrow,parent,false);
textToSpeech = new TextToSpeech(context, this);
final TextView verseno;
final TextView verselistview;
ImageView share;
ToggleButton addfavoruite;
ImageView speakverse;
final LinearLayout linearLayout;
verseno=(TextView)view.findViewById(R.id.versenumber);
verseno.setText(versenumber.get(position));
verselistview=(TextView)view.findViewById(R.id.verse);
verselistview.setText(verselist.get(position));
addfavoruite=(ToggleButton)view.findViewById(R.id.adbookmark);
linearLayout=(LinearLayout)view.findViewById(R.id.layout);
share=(ImageView)view.findViewById(R.id.share);
speakverse=(ImageView)view.findViewById(R.id.speak);
if(DefaultSettings.nightmode(context)){
linearLayout.setBackgroundColor(Color.parseColor("#363437"));
verselistview.setTextColor(Color.parseColor("#ffffff"));
verseno.setTextColor(Color.parseColor("#ffffff"));
}
speakverse.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
singleverse(verselist.get(position).toString());
}
});
int a=position+1;
colors=new ArrayList<>();
colors.add("#e0e0eb");
colors.add("#ccffff");
colors.add("#ffe6ff");
colors.add("#ffffcc");
colors.add("#ccffcc");
colors.add("#e6f2ff");
SharedPreferences sharedPreferences=context.getSharedPreferences("DATA",MODE_PRIVATE);
int getverse=sharedPreferences.getInt("versenumber",1);
if(a==getverse){
if(DefaultSettings.highlight(context)){
DefaultSettings.color(context);
linearLayout.setBackgroundColor(DefaultSettings.colorpicked);
}
}
if(Checkisfavourite("favourite","id",verseid.get(position)))
{
if(verseid.get(position).equals(verseid.get(position))){
addfavoruite.setChecked(true);
}else {
addfavoruite.setChecked(false);
}
}
addfavoruite.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
#Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if(isChecked){
mDBHelper = new DatabaseHelper(context);
mDb = mDBHelper.getWritableDatabase();
ContentValues contentValues=new ContentValues();
contentValues.put("id",verseid.get(position));
contentValues.put("bookname",refernce.get(position));
contentValues.put("versenumber",versenumber.get(position));
contentValues.put("verse",verselist.get(position));
long check=mDb.insert("favourite",null,contentValues);
Toasty.success(context, "Added in favouite", Toast.LENGTH_SHORT, true).show();
}
else {
mDBHelper = new DatabaseHelper(context);
mDb = mDBHelper.getWritableDatabase();
long delete= mDb.delete("favourite","id=?",new String[]{verseid.get(position)});
Toasty.error(context, "Remove in favouite", Toast.LENGTH_SHORT, true).show();
}
}
});
share.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Toasty.info(context, "Sharing a verse.", Toast.LENGTH_SHORT, true).show();
Intent sendIntent = new Intent();
sendIntent.setAction(Intent.ACTION_SEND);
sendIntent.putExtra(Intent.EXTRA_TEXT, refernce.get(position) + ":" + versenumber.get(position) + '\n' + verselist.get(position) +
+'\n' +'\n' +'\n' +"https://play.google.com/store/apps/details?id=bible.swordof.God");
sendIntent.setType("text/plain");
context.startActivity(sendIntent);
}
});
/* linearLayout.setOnLongClickListener(new View.OnLongClickListener() {
#Override
public boolean onLongClick(View v) {
//Toasty.success(activity, "PICK COLOR", Toast.LENGTH_SHORT, true).show();
Vibrator vibe = (Vibrator)context.getSystemService(Context.VIBRATOR_SERVICE);
vibe.vibrate(100);
mDBHelper = new DatabaseHelper(context);
mDb = mDBHelper.getWritableDatabase();
ContentValues contentValues=new ContentValues();
contentValues.put("verseid",colors.get(position));
final long check=mDb.insert("highlight",null,contentValues);
//id get
//postion
//Toast.makeText(activity, ""+getItemId(position), Toast.LENGTH_SHORT).show();
ColorPicker colorPicker = new ColorPicker(context);
colorPicker.setColors(colors).setColumns(4).setTitle("HIGHLIGHT VERSE").setRoundColorButton(true).setOnChooseColorListener(new ColorPicker.OnChooseColorListener() {
#Override
public void onChooseColor(int position, int color) {
linearLayout.setBackgroundColor(Color.parseColor(colors.get(position)));
}
#Override
public void onCancel() {
}
}).show();
return false;
}
});
*/
return view;
}
public boolean Checkisfavourite(String TableName, String dbfield, String fieldValue) {
mDBHelper = new DatabaseHelper(context);
mDb = mDBHelper.getReadableDatabase();
String Query = "Select * from " + TableName + " where " + dbfield + " = " + fieldValue;
Cursor cursor = mDb.rawQuery(Query, null);
if(cursor.getCount() <= 0){
cursor.close();
// Toast.makeText(activity, "false", Toast.LENGTH_SHORT).show();
return false;
}else {
// Toast.makeText(activity, "TRUE", Toast.LENGTH_SHORT).show();
}
cursor.close();
return true;
}
public boolean colorcheck(String TableName, String dbfield, String fieldValue) {
mDBHelper = new DatabaseHelper(context);
mDb = mDBHelper.getReadableDatabase();
String Query = "Select * from " + TableName + " where " + dbfield + " = " + fieldValue;
Cursor cursor = mDb.rawQuery(Query, null);
if(cursor.getCount() <= 0){
cursor.close();
// Toast.makeText(activity, "false", Toast.LENGTH_SHORT).show();
return false;
}else {
// Toast.makeText(activity, "TRUE", Toast.LENGTH_SHORT).show();
}
cursor.close();
return true;
}
#Override
public void onInit(int status) {
if (status == TextToSpeech.SUCCESS) {
int result = textToSpeech.setLanguage(Locale.US);
// tts.setPitch(5); // set pitch level
// tts.setSpeechRate(2); // set speech speed rate
if (result == TextToSpeech.LANG_MISSING_DATA
|| result == TextToSpeech.LANG_NOT_SUPPORTED) {
Log.e("TTS", "Language is not supported");
} else {
}
} else {
Log.e("TTS", "Initilization Failed");
}
}
private void singleverse(String text) {
DefaultSettings.speed(context);
textToSpeech.setPitch(DefaultSettings.pitchvalue);
textToSpeech.setSpeechRate(DefaultSettings.speedvalue);
textToSpeech.speak(text, TextToSpeech.QUEUE_FLUSH, null);
}
public void stop(){
if (textToSpeech != null) {
textToSpeech.stop();
textToSpeech.shutdown();
}
}
}

The main problem is that your TextToSpeech object belongs to your BaseAdapter when it should belong to the parent activity.
Instead of housing it in the adapter and calling speak on it every time the user clicks an item, I would instead house it in the parent activity and use an "interface callback" that sends a message to the parent when the user clicks an item, sending back the string to speak. This callback relationship works the exact same way as the TextToSpeech.OnInitListener callback that you're already using.
Once the TTS belongs to the parent activity, you can use the activity lifecycle functions to control the shutdown of the TTS like normal.
If you study and understand the following, you should be able to merge it into your code and get a working solution:
Make these changes to your custom BaseAdapter:
// Remove the TextToSpeech object from this class.
public class MyBaseAdapter {
// add this interface definition to your adapter
public interface SpeechClickSubscriber {
void stringNeedsToBeSpoken(String verse);
}
// add this property (the subscriber)
private SpeechClickSubscriber speechClickSubscriber;
// *add* this functionality to your adapter's existing constructor
MyBaseAdapter(SpeechClickSubscriber parent) {
speechClickSubscriber = parent;
}
//...
// change this section of code in your getView() method
speakverse.setOnClickListener(new View.OnClickListener()
{
#Override
public void onClick (View v){
// change this...
// singleverse(verselist.get(position).toString());
// to this:
speechClickSubscriber.stringNeedsToBeSpoken(verselist.get(position).toString());
}
});
// ...
}
Make these changes to your MainActivity (or whatever your parent activity is):
// add the SpeechClickSubscriber implementation
public class MainActivity extends AppCompatActivity implements MyBaseAdapter.SpeechClickSubscriber, TextToSpeech.OnInitListener {
MyBaseAdapter adapter;
TextToSpeech textToSpeech;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// using app context is better and less error prone.
textToSpeech = new TextToSpeech(getApplicationContext(), this);
}
// *add* this method to this activity (this is the answer to your question)
#Override
protected void onStop() {
super.onStop();
stopTTS();
}
// use this method as your "onStart()" method...
// this will help prevent any user input processing until the tts is initialized.
private void start_Activity_Because_TTS_Has_Initialized() {
adapter = new MyBaseAdapter(this);
}
// *MOVE* this method from your base adapter to this (parent) activity:
#Override
public void onInit(int status) {
if (status == TextToSpeech.SUCCESS) {
int result = textToSpeech.setLanguage(Locale.US);
// tts.setPitch(5); // set pitch level
// tts.setSpeechRate(2); // set speech speed rate
if (result == TextToSpeech.LANG_MISSING_DATA
|| result == TextToSpeech.LANG_NOT_SUPPORTED) {
Log.e("TTS", "Language is not supported");
} else {
}
} else {
Log.e("TTS", "Initilization Failed");
}
}
// *move* and *rename* this method from your adapter to the parent activity:
// from:
/*
private void singleverse(String text) {
DefaultSettings.speed(context);
textToSpeech.setPitch(DefaultSettings.pitchvalue);
textToSpeech.setSpeechRate(DefaultSettings.speedvalue);
textToSpeech.speak(text, TextToSpeech.QUEUE_FLUSH, null);
} */
// to:
#Override
public void stringNeedsToBeSpoken(String verse) {
Log.i("XXX","stringNeedsToBeSpoken() was called because the user clicked an item.");
Log.i("XXX","This method is being called because this activity subscribes to the callback we created and added to our base adapter.");
//DefaultSettings.speed(context); // <----------------- I don't know what this does.
// I'm assuming that DefaultSettings is a static class you have made.
textToSpeech.setPitch(DefaultSettings.pitchvalue);
textToSpeech.setSpeechRate(DefaultSettings.speedvalue);
textToSpeech.speak(verse, TextToSpeech.QUEUE_FLUSH, null);
}
public void stopTTS(){
if (textToSpeech != null) {
textToSpeech.stop();
textToSpeech.shutdown();
}
}
}

Nullpointerexception when trying to insert a value into SQLite

I'm trying to insert some values into an SQLite Database which are entered by the user, however when I press the button to save the values it crashes and a NullPointer exception is thrown:
java.lang.NullPointerException: Attempt to invoke virtual method 'long android.database.sqlite.SQLiteDatabase.insert(java.lang.String, java.lang.String, android.content.ContentValues)' on a null object reference at com.example.w4e74.farmanimalfinal.DatabaseHelper.insertRecord(DatabaseHelper.java:61)at com.example.w4e74.farmanimalfinal.Activity_item.onOptionsItemSelected(Activity_item.java:66)
I do not know what is causing the exception. My code is below, any help would be very appreciated.
Activity_item.java
package com.example.w4e74.farmanimalfinal;
import android.app.Dialog;
import android.content.Intent;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.support.v7.app.ActionBar;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
import android.view.ViewDebug;
import android.widget.EditText;
import android.widget.ListView;
public class Activity_item extends AppCompatActivity {
EditText editText_item;
boolean newItem;
long item_index;
private SQLiteDatabase db;
private Cursor cursor;
CustomCursorAdapter listAdapter;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.layout_item);
DatabaseHelper db = new DatabaseHelper(this);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar_item);
setSupportActionBar(toolbar);
ActionBar actionBar = getSupportActionBar();
actionBar.setDisplayHomeAsUpEnabled(true);
Intent intent = getIntent();
item_index = intent.getLongExtra("item_index", -1);
if(item_index == -1) {
newItem = true;
} else {
newItem = false;
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu_item, menu);
return super.onCreateOptionsMenu(menu);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.save_item:
DatabaseHelper.insertRecord(db, (R.id.editText_date),(R.id.editText_time), Integer.toString(R.id.editText_staff),(R.id.editText_animal),Integer.toString(R.id.editText_activity),Integer.toString(R.id.editText_details));
finish();
return true;
default:
return super.onOptionsItemSelected(item);
}
}
}
DatabaseHelper.java
package com.example.w4e74.farmanimalfinal;
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 DatabaseHelper extends SQLiteOpenHelper {
private static final String DB_NAME = "farmanimals";
private static final int DB_VERSION = 1;
public DatabaseHelper(Context context) {
super(context, DB_NAME, null, DB_VERSION);
}
#Override
public void onCreate(SQLiteDatabase db) {
db.execSQL("CREATE TABLE RECORD ("
+ "_id INTEGER PRIMARY KEY AUTOINCREMENT, "
+ "DATE INTEGER, "
+ "TIME INTEGER, "
+ "STAFF TEXT,"
+ "ANIMAL INTEGER,"
+ "ACTIVITY TEXT,"
+ "DETAIL TEXT);"
);
}
#Override
public void onUpgrade(SQLiteDatabase sqLiteDatabase, int i, int i1) {
}
#Override
public void onDowngrade(SQLiteDatabase sqLiteDatabase, int i, int i1) {
}
public static long insertRecord(SQLiteDatabase db, int date, int time, String staff, int animal, String activity, String detail ) {
ContentValues recordValues = new ContentValues();
recordValues.put("DATE", date);
recordValues.put("TIME", time);
recordValues.put("STAFF", staff);
recordValues.put("ANIMAL", animal);
recordValues.put("ACTIVITY", activity);
recordValues.put("DETAIL", detail);
long newRecordID = db.insert("RECORD", null, recordValues);
return newRecordID;
}
public static String getDatabaseContentsAsString(SQLiteDatabase db) {
Cursor cursor = db.query("RECORD",
new String[]{"_id", "DATE", "TIME", "STAFF", "ANIMAL", "ACTIVITY", "DETAIL"},
null, null, null, null, "_id ASC");
String databaseAsString = System.getProperty("line.separator");
if(cursor.getCount() != 0) {
cursor.moveToFirst();
while (!cursor.isAfterLast()) {
for (int i=0; i < cursor.getColumnCount() - 1; i++) {
databaseAsString += cursor.getString(i) + " ";
}
databaseAsString += System.getProperty("line.separator");
cursor.moveToNext();
}
if(cursor != null) cursor.close();
}
return databaseAsString;
}
public static void deleteRecord(SQLiteDatabase db, Long id) {
db.delete("RECORD", "_id=?", new String[] {Long.toString(id)});
}
public static void deleteAllRecords(SQLiteDatabase db) {
db.delete("RECORD", null, null);
db.delete("SQLITE_SEQUENCE","NAME = ?",new String[]{"RECORD"});
}
}
Edit: Error message received:
Incompatible types.
Required:
android.database.sqlite.SQLiteDatabase
Found:
com.example.w4e74.farmanimalfinal.DatabaseHelper

Your problem is the scope of db In onCreate():
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.layout_item);
DatabaseHelper db = new DatabaseHelper(this);
...
}
You have this instance of db declared as a local variable, effectively creating two variables, both called db but operating at different scopes. This means that as soon as onCreate() is finished, this reference to db will be lost and garbage collected.
Your two instances of db are also of different types - SQLiteDatabase and DatabaseHelper, so a better variable naming strategy would help avoid problems like this in the future. As we'll be using the SQLiteDatabase version of db, we'll need to grab a writable instance of your database to use with the helper in future:
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.layout_item);
db = new DatabaseHelper(this).getWritableDatabase();
...
}
This will ensure that you're setting the member variable rather than a local variable.

How do I save a getIntent() value in a SQLite database?

I'm new to Android development.
Recently I wanted to make an app which First Activity calculates a number and sends it through an intent to the Second activity.
So far so good.
But in this stage I'm facing some problem.
That is, when I receive the intent via getIntent(), it is OK.
But I don't know how do I save the getIntent() value in a SQLite database?
Hope you guys will help me to fix this problem.
This is my First Activity
import com.google.android.gms.ads.AdRequest;
import com.google.android.gms.ads.AdView;
import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
public class DrinkActivity extends AppCompatActivity {
// Remove the below line after defining your own ad unit ID.
//private static final String TOAST_TEXT = "Test ads are being shown. "
// + "To show live ads, replace the ad unit ID in res/values/strings.xml with your own ad unit ID.";
//this is how many count
int a = 0;
//this is hoq much
int b = 0;
//this is button who is send information and go next page
Button B1;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_drink);
// Load an ad into the AdMob banner view.
AdView adView = (AdView) findViewById(R.id.adView);
AdRequest adRequest = new AdRequest.Builder()
.setRequestAgent("android_studio:ad_template").build();
adView.loadAd(adRequest);
// Toasts the test ad message on the screen. Remove this after defining your own ad unit ID.
//Toast.makeText(this, TOAST_TEXT, Toast.LENGTH_LONG).show();
B1 = (Button) findViewById(R.id.gonextPage);
B1.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent intent = new Intent(DrinkActivity.this,ScrollingActivity.class);
int x = a ;
int y = b;
int z = a * b;
intent.putExtra("drinkhowmany",x);
intent.putExtra("drinkhowmuch",y);
intent.putExtra("drinktotal",z);
startActivity(intent);
}
});
}
//this method count down how many drink plus calculation
public void howmanyPlusButton(View view){
if (a == 100){
return;
}
a = a + 1;
displayHowMany(a);
}
//this method count down how many drink minus calculation
public void howmanyMinusButton(View view){
if (a == -0){
return;
}
a = a - 1;
displayHowMany(a);
}
//this method count down how much price drink plus calculation
public void howmuchPlusButton(View view){
if (b == 100){
return;
}
b = b +1;
displayHowMuch(b);
}
//this method count down how much price minus drink calculation
public void howmuchMinusButton(View view){
if (b == -0){
return;
}
b = b -1;
displayHowMuch(b);
}
//this text show user how many digit
private void displayHowMany(int i){
TextView textView = (TextView) findViewById(R.id.howMany);
textView.setText(""+i);
}
//this text show user how much price digit
private void displayHowMuch(int i){
TextView textView = (TextView) findViewById(R.id.howMuch);
textView.setText("$"+i);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_drink, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
This is my 2nd Activity
import android.content.Intent;
import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
public class ScrollingActivity extends AppCompatActivity {
//drink text working hear
TextView drinkhowmany,drinkhowmuch,drinktotal;
//data save button and data delete button
Button save,delete;
//database
SQLiteDataBase sqLiteDataBase;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_scrolling);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
.setAction("Action", null).show();
Intent intent = new Intent(ScrollingActivity.this,MenuActivity.class);
startActivity(intent);
}
});
//main text working and shoq user preview hear
//database call hear
sqLiteDataBase = new SQLiteDataBase(this);
//this is drink section
//this is show user hoq many drink user order
drinkhowmany = (TextView) findViewById(R.id.drinkHowMany);
drinkhowmany.setText(""+getIntent().getIntExtra("drinkhowmany",0));
//thisis show user how much drink price
drinkhowmuch = (TextView) findViewById(R.id.drinkHowMuch);
drinkhowmuch.setText("$"+getIntent().getIntExtra("drinkhowmuch",0));
//this is show user total drink price
final int drinkTotalInt = +getIntent().getIntExtra("drinktotal",0);
drinktotal = (TextView) findViewById(R.id.drinkTotal);
drinktotal.setText("$"+drinkTotalInt);
//buttton with database
save = (Button) findViewById(R.id.savedataButton);
save.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
boolean chaker = saveDataFile.addtoTable(`what i need to write hear also ?` );
if (chaker == true){
Toast.makeText(getBaseContext(),"SAVE YOUR DATA",Toast.LENGTH_SHORT).show();
}else {
Toast.makeText(getBaseContext(),"Your Data Not Save",Toast.LENGTH_SHORT).show();
}
}
});
}
}
SQLITE ACTIVITY
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
/**
* Created by AIB Nihan on 10/4/2016.
*/
public class SQLiteDataBase extends SQLiteOpenHelper {
//this is the like box of information this is the box of which user input ther value
private static final String DATABASE_NAME = "mydatabase.db";
private static final String TABLE_NAME = "mytable";
private static final String DRINK_PRICE = "drink";
public SQLiteDataBase(Context context) {
super(context, DATABASE_NAME, null, 1);
}
#Override
public void onCreate(SQLiteDatabase sqLiteDatabase) {
String query;
query = "CREATE TABLE " +TABLE_NAME+ "(" +CIG_PRICE+ " INTEGER, "+ ")";
sqLiteDatabase.execSQL(query);
}
#Override
public void onUpgrade(SQLiteDatabase sqLiteDatabase, int i, int i1) {
sqLiteDatabase.execSQL(" DROP FILE IF EXITS " + TABLE_NAME);
onCreate(sqLiteDatabase);
}
//int coffee,,int drink,int food,int other
public boolean addtotable(int cig){
SQLiteDatabase sqLiteDatabase = getWritableDatabase();
ContentValues contentValues = new ContentValues();
//contentValues.put(DRINK_PRICE,drink);
long chaker = sqLiteDatabase.insert(TABLE_NAME,null,contentValues);
if (chaker == 1){
return false;
}else {
return true;
}
}
public Cursor display(){
SQLiteDatabase sqLiteDatabase = getReadableDatabase();
Cursor res = sqLiteDatabase.rawQuery("SELECT * FORM" + TABLE_NAME,null);
return res;
}
}

As per your code , You can pass integer to addtotable() by passing drinkTotalInt or some integer value.
e.g
save.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) { boolean chaker =
saveDataFile.addtoTable(drinkTotalIn); if (chaker == true){
Toast.makeText(getBaseContext(),"SAVE YOUR
DATA",Toast.LENGTH_SHORT).show(); }else {
Toast.makeText(getBaseContext(),"Your Data Not
Save",Toast.LENGTH_SHORT).show();
}
}
});
and in addtable() insert passing value as below,
contentValues.put(DRINK_PRICE, [insert data]);
If You want to insert intent into sqlite, change sqlite schema as:
query = "CREATE TABLE " +TABLE_NAME+ "(" +CIG_PRICE+ " **TEXT**, "+ ")";
then, pass intent as argument to addtable().
e.g ,
addtable(getIntent());
In addtable():
public boolean addtotable(Intent intent){
SQLiteDatabase sqLiteDatabase = getWritableDatabase();
ContentValues contentValues = new ContentValues();
String intentDescription = intent.toUri(0);
contentValues.put(DRINK_PRICE,intentDescription);
long chaker = sqLiteDatabase.insert(TABLE_NAME,null,contentValues);
if (chaker == 1){
return false;
}else {
return true;
}
}
Get intent from sqlite:
String intentDescription = cursor.getString(intentIndex);
Intent intent = Intent.parseUri(intentDescription, 0);
Now you can parse intent to get all values.
Edit:
Getting intent from sqlite in more details:
SQLiteDatabase sqLiteDatabase = getWritableDatabase();
Cursor cursor = sqLiteDatabase .rawQuery("select * from [table-name] ");
if (cursor.moveToFirst()) {
do {
String intentDescription = cursor.getString(0); // getting intent from sqlite at index 0
Intent intent = Intent.parseUri(intentDescription, 0);
} while (cursor.moveToNext());
}
if (cursor != null && !cursor.isClosed()) {
cursor.close();
}
if(db!=null)
{
db.close();
}

You will need to use ContentValues.
I would recommend using this tutorial:
https://www.tutorialspoint.com/android/android_sqlite_database.htm

Query Database using selected item from drop down spinner

I have an app that writes to and deletes from a database. I have a 2 spinners that are generated from 2 different columns in that database. I want to run a query for all records matching the selected item from the given drop down spinner. As of right now everything works fine however when I select an item from the drop down, nothing happens. I know I'm missing something just not sure what or where. Please help
Here is my Dbhelper.Java
package com.gamingbrothers.pat.passwordencrypter;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
//table structure
public class Dbhelper extends SQLiteOpenHelper {
public static final String DB_NAME = "LogInInfo.db";
public static final String TABLE_NAME = "LogInInfo_table";
public static final String COL_1 = "ID";
public static final String COL_2 = "USER_NAME";
public static final String COL_3 = "USER_PASSWORD";
public static final String COL_4 = "APPLICATION";
public static final String COL_5 = "CUSTOMER";
public Dbhelper(Context context) {
super(context, DB_NAME, null, 1);
}
c.close();
return notes_array;
}
#Override
public void onCreate (SQLiteDatabase db) {
db.execSQL("create table " + TABLE_NAME + " (ID INTEGER PRIMARY KEY AUTOINCREMENT," +
"USER_NAME TEXT,USER_PASSWORD TEXT," +
"APPLICATION TEXT,CUSTOMER TEXT)");
}
//Query Database with item selected from drop down
public Cursor getChoiceData() {
SQLiteDatabase db = this.getWritableDatabase();
Cursor result = db.rawQuery("select * from LogInInfo_table where CUSTOMER = ?",null);
return result;
}
//Gather Data
public Cursor getAllData() {
SQLiteDatabase db = this.getWritableDatabase();
Cursor result = db.rawQuery("select * from LogInInfo_table",null);
return result;
}
//getting customers for drop down
public List<String> getAllCustomers(){
List<String> customers = new ArrayList<String>();
// Select All Query
String selectQuery = "SELECT * FROM " + TABLE_NAME;
SQLiteDatabase db = this.getReadableDatabase();
Cursor cursor = db.rawQuery(selectQuery, null);
// looping through all rows and adding to list
if (cursor.moveToPosition(0)) {
do {
customers.add(cursor.getString(4));
} while (cursor.moveToNext());
}
// closing connection
cursor.close();
db.close();
// returning customers
return customers;
}
//getting apps for drop down
public List<String> getAllApps(){
List<String> apps = new ArrayList<String>();
// Select All Query
String selectQuery = "SELECT * FROM " + TABLE_NAME;
SQLiteDatabase db = this.getReadableDatabase();
Cursor cursor = db.rawQuery(selectQuery, null);
// looping through all rows and adding to list
if (cursor.moveToPosition(0)) {
do {
apps.add(cursor.getString(3));
} while (cursor.moveToNext());
}
// closing connection
cursor.close();
db.close();
// returning apps
return apps;
}
//creating update data function
public boolean updateData(String ID,String User_Name,String Password,String Application,String Customer){
SQLiteDatabase db = this.getWritableDatabase();
ContentValues contentValues = new ContentValues();
contentValues.put(COL_1,ID);
contentValues.put(COL_2,User_Name);
contentValues.put(COL_3,Password);
contentValues.put(COL_4, Application);
contentValues.put(COL_5,Customer);
db.update(TABLE_NAME,contentValues, "ID = ?",new String[] {ID});
return true;
}
//deleting data
public Integer deleteData (String ID){
SQLiteDatabase db = this.getWritableDatabase();
return db.delete(TABLE_NAME, "ID = ?",new String[]{ID});
}
}
Here is my MainActivity.Java
package com.gamingbrothers.pat.passwordencrypter;
//Created by Pat 8/6/15
import android.app.AlertDialog;
import android.database.Cursor;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Spinner;
import android.widget.Toast;
import java.util.List;
public class MainActivity extends AppCompatActivity implements AdapterView.OnItemSelectedListener {
Dbhelper myDB;
Button btnAdd;
Button btnDelete;
Button btnView;
Button btnUpdate;
Spinner spinner;
Spinner spinner2;
String itemSelected;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
myDB = new Dbhelper(this);
//initializing objects
editUserName = (EditText) findViewById(R.id.editText_user);
editPassword = (EditText) findViewById(R.id.editText_pass);
editApplication = (EditText) findViewById(R.id.editText_app);
editID = (EditText) findViewById(R.id.editText_id);
editCustomer = (EditText) findViewById(R.id.editText_customer);
btnAdd = (Button) findViewById(R.id.button_Add);
btnDelete = (Button) findViewById(R.id.button_Delete);
btnView = (Button) findViewById(R.id.button_View);
btnUpdate = (Button) findViewById(R.id.button_update);
spinner = (Spinner) findViewById(R.id.spinner);
spinner2 = (Spinner) findViewById(R.id.spinner2);
AddData();
viewAll();
UpdateData();
DeleteData();
loadSpinnerData();
loadSpinner2Data();
}
public void loadSpinner2Data() {
//db handler
Dbhelper db2 = new Dbhelper(getApplicationContext());
//Spinner drop elem.
List<String> apps = db2.getAllApps();
//Create adapter for spinner
ArrayAdapter<String> dataAdapter2 = new ArrayAdapter<String>(this,
android.R.layout.simple_spinner_item, apps);
// Drop down layout style - list view with radio button
dataAdapter2
.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
//attaching data adapter
spinner2.setAdapter(dataAdapter2);
}
private void loadSpinnerData() {
// database handler
Dbhelper db = new Dbhelper(getApplicationContext());
// Spinner Drop down elements
List<String> customers = db.getAllCustomers();
// Creating adapter for spinner
ArrayAdapter<String> dataAdapter = new ArrayAdapter<String>(this,
android.R.layout.simple_spinner_item, customers);
// Drop down layout style - list view with radio button
dataAdapter
.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
// attaching data adapter to spinner
spinner.setAdapter(dataAdapter);
}
public void DeleteData() {
btnDelete.setOnClickListener(
new View.OnClickListener() {
#Override
public void onClick(View v) {
Integer deletedRows = myDB.deleteData(editID.getText().toString());
if(deletedRows >0)
Toast.makeText(MainActivity.this, "Data Deleted", Toast.LENGTH_LONG).show();
else
Toast.makeText(MainActivity.this, "Data not Deleted", Toast.LENGTH_LONG).show();
}
}
);
}
//creating update data function
public void UpdateData() {
btnUpdate.setOnClickListener(
new View.OnClickListener() {
#Override
public void onClick(View v) {
boolean isUpdated = myDB.updateData(editID.getText().toString(),
editUserName.getText().toString(),
editPassword.getText().toString(),
editApplication.getText().toString(),
editCustomer.getText().toString());
//Parse update completion
if (isUpdated == true)
Toast.makeText(MainActivity.this, "Data Updated", Toast.LENGTH_LONG).show();
else
Toast.makeText(MainActivity.this, "Data not Updated", Toast.LENGTH_LONG).show();
}
});
}
//add data to database
public void AddData() {
btnAdd.setOnClickListener(
new View.OnClickListener() {
#Override
public void onClick(View v) {
boolean isInserted = myDB.insertData(editUserName.getText().toString(),
editPassword.getText().toString(),
editApplication.getText().toString(),
editCustomer.getText().toString());
//parse add completion
if (isInserted == true)
Toast.makeText(MainActivity.this, "Data Inserted", Toast.LENGTH_LONG).show();
else
Toast.makeText(MainActivity.this, "Data not Inserted", Toast.LENGTH_LONG).show();
}
});
}
//Get results from database when button is clicked
public void viewAll() {
btnView.setOnClickListener(
new View.OnClickListener() {
#Override
public void onClick(View v) {
Cursor result = myDB.getAllData();
//Check if database is empty
if (result.getCount() == 0) {
//Show Message
showMessage("Error", "No Data Found");
return;
}
StringBuffer buffer = new StringBuffer();
while (result.moveToNext()) {
buffer.append("ID:" + result.getString(0) + "\n");
buffer.append("User Name:" + result.getString(1) + "\n");
buffer.append("Password:" + result.getString(2) + "\n");
buffer.append("App:" + result.getString(3) + "\n");
buffer.append("Customer:" + result.getString(4) + "\n\n");
}
//Show all data
showMessage("Data", buffer.toString());
}
}
);
}
//show data
public void showMessage(String title,String Message){
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setCancelable(true);
builder.setTitle(title);
builder.setMessage(Message);
builder.show();
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
#Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
String label = parent.getItemAtPosition(position).toString();
myDB.getChoiceData().toString();
Toast.makeText(parent.getContext(), "Here is your information: "+ label,Toast.LENGTH_LONG).show();
}
#Override
public void onNothingSelected(AdapterView<?> parent) {
}
}
If you need me to post my XML just ask, but I didn't think it was neccessary and I didn't post my logcat because it doesn't give me an error.

From the code you posted you seem to be missing the selected item listener, add the following, for example, to your onCreate:
spinner.setOnItemSelectedListener(this);
spinner2.setOnItemSelectedListener(this);

How to get the list item name from a listview to a textview in another activity?

Im creating an app where users can enter the movies they own, to show in a listview, and for random picking a movie from that list.
Now what my problem is, that when clicking on an item in the listview a new activity opens op where the item clicked is the title in a textview. So far i can get the movie from the list who is number 1 to show, but that shows it's title no matter which list item I click, how can i get the specific name depending on what item is clicked?? Thanks in advance.
My Database class:
package com.example;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.SQLException;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.util.Log;
public class MovieDatabaseHelper {
private static final String TAG = MovieDatabaseHelper.class.getSimpleName();
// database configuration
// if you want the onUpgrade to run then change the database_version
private static final int DATABASE_VERSION = 2;
private static final String DATABASE_NAME = "mymoviedatabase.db";
// table configuration
private static final String TABLE_NAME = "movie_table"; // Table name
private static final String MOVIE_TABLE_COLUMN_ID = "_id"; // a column named "_id" is required for cursor
private static final String MOVIE_TABLE_COLUMN_TITLE = "movie_title";
private static final String MOVIE_TABLE_COLUMN_YEAR = "production_year";
private DatabaseOpenHelper openHelper;
private SQLiteDatabase database;
// this is a wrapper class. that means, from outside world, anyone will communicate with MovieDatabaseHelper,
// but under the hood actually DatabaseOpenHelper class will perform database CRUD operations
public MovieDatabaseHelper(Context aContext) {
openHelper = new DatabaseOpenHelper(aContext);
database = openHelper.getWritableDatabase();
}
public void insertData (String aMovieTitle, String aMovieYear) {
// we are using ContentValues to avoid sql format errors
ContentValues contentValues = new ContentValues();
contentValues.put(MOVIE_TABLE_COLUMN_TITLE, aMovieTitle);
contentValues.put(MOVIE_TABLE_COLUMN_YEAR, aMovieYear);
database.insert(TABLE_NAME, null, contentValues);
}
//Retrieves all the records
public Cursor getAllData () {
String buildSQL = "SELECT * FROM " + TABLE_NAME + " ORDER BY " + MOVIE_TABLE_COLUMN_TITLE + " COLLATE NOCASE";
Log.d(TAG, "getAllData SQL: " + buildSQL);
return database.rawQuery(buildSQL, null);
}
// Retrieves specific record
public String getMovieTitle()
{
Cursor c =
database.query(TABLE_NAME,
new String[] { MOVIE_TABLE_COLUMN_TITLE }, null, null, null, null, null);
if (c.moveToFirst())
return c.getString(c.getColumnIndex(MOVIE_TABLE_COLUMN_TITLE ));
else
return "Nothing";
}
// Retrieves a random entry from the Database
public String getRandomMovie()
{
Cursor c = database.query(TABLE_NAME + " ORDER BY RANDOM() LIMIT 1",
new String[] { MOVIE_TABLE_COLUMN_TITLE }, null, null, null, null, null);
if(c.moveToFirst())
return c.getString(c.getColumnIndex(MOVIE_TABLE_COLUMN_TITLE ));
else
return "nothing";
}
//Check if record exist
//---deletes a particular record---
public void delete(int _id)
{
database.delete(TABLE_NAME, MOVIE_TABLE_COLUMN_ID+"="+_id, null);
}
//---updates a record---
public boolean updateRecord(long _id, String movie_title)
{
ContentValues args = new ContentValues();
args.put(MOVIE_TABLE_COLUMN_TITLE, movie_title);
return database.update(TABLE_NAME, args, MOVIE_TABLE_COLUMN_ID + "=" + _id, null) > 0;
}
// this DatabaseOpenHelper class will actually be used to perform database related operation
private class DatabaseOpenHelper extends SQLiteOpenHelper {
public DatabaseOpenHelper(Context aContext) {
super(aContext, DATABASE_NAME, null, DATABASE_VERSION);
}
#Override
public void onCreate(SQLiteDatabase sqLiteDatabase) {
// Create your tables here
String buildSQL = "CREATE TABLE " + TABLE_NAME + "( " + MOVIE_TABLE_COLUMN_ID + " INTEGER PRIMARY KEY, " +
MOVIE_TABLE_COLUMN_TITLE + " TEXT, " + MOVIE_TABLE_COLUMN_YEAR + " TEXT )";
Log.d(TAG, "onCreate SQL: " + buildSQL);
sqLiteDatabase.execSQL(buildSQL);
}
#Override
public void onUpgrade(SQLiteDatabase sqLiteDatabase, int oldVersion, int newVersion) {
// Database schema upgrade code goes here
String buildSQL = "DROP TABLE IF EXISTS " + TABLE_NAME;
Log.d(TAG, "onUpgrade SQL: " + buildSQL);
sqLiteDatabase.execSQL(buildSQL); // drop previous table
onCreate(sqLiteDatabase); // create the table from the beginning
}
}
}
My listview class:
package com.example;
import android.app.Activity;
import android.content.Intent;
import android.database.Cursor;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.os.Handler;
import android.util.Log;
import android.view.View;
import android.view.Window;
import android.widget.AdapterView;
//import android.widget.Button;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ImageButton;
import android.widget.ListView;
import android.widget.TextView;
public class MyActivity extends Activity {
private CustomCursorAdapter customAdapter;
private MovieDatabaseHelper databaseHelper;
private static final int ENTER_DATA_REQUEST_CODE = 1;
private ListView listView;
MediaPlayer mp;
private static final String TAG = MyActivity.class.getSimpleName();
/**
* Called when the activity is first created.
*/
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.dblist);
databaseHelper = new MovieDatabaseHelper(this);
final MediaPlayer mp = MediaPlayer.create(MyActivity.this, R.raw.cartoon015);
listView = (ListView) findViewById(R.id.list_data);
ImageButton okay = (ImageButton) findViewById(R.id.okay);
listView.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id ) {
Intent i = new Intent(MyActivity.this,IMDb.class);
startActivity(i);
Log.d(TAG, "clicked on item: " + position);
}
}
);
okay.setOnClickListener
(new View.OnClickListener()
{
public void onClick(View v)
{
mp.start();
mp.setVolume((float) 0.3, (float) 0.3);
Intent intent = new Intent(MyActivity.this,MovieActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(intent);
}
}
);
// Database query can be a time consuming task ..
// so its safe to call database query in another thread
// Handler, will handle this stuff for you <img src="http://s0.wp.com/wp-includes/images/smilies/icon_smile.gif?m=1129645325g" alt=":)" class="wp-smiley">
new Handler().post(new Runnable() {
#Override
public void run() {
customAdapter = new CustomCursorAdapter(MyActivity.this, databaseHelper.getAllData());
listView.setAdapter(customAdapter);
}
});
}
public void onClickEnterData(View btnAdd) {
final MediaPlayer mp = MediaPlayer.create(MyActivity.this, R.raw.cartoon015);
mp.start();
mp.setVolume((float) 0.1, (float) 0.1);
startActivityForResult(new Intent(this, EnterDataActivity.class), ENTER_DATA_REQUEST_CODE);
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == ENTER_DATA_REQUEST_CODE && resultCode == RESULT_OK) {
databaseHelper.insertData(data.getExtras().getString("tag_movie_title"), data.getExtras().getString("tag_movie_year"));
customAdapter.changeCursor(databaseHelper.getAllData());
}
}
}
My movie detail class:
package com.example;
import java.util.ArrayList;
import android.app.Activity;
import android.content.Intent;
import android.database.Cursor;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.view.View;
import android.view.Window;
import android.widget.Button;
import android.widget.ImageButton;
import android.widget.TextView;
import android.widget.Toast;
public class IMDb extends Activity {
TextView Movietitle;
private MovieDatabaseHelper databaseHelper;
MediaPlayer mp;
/**
* Called when the activity is first created.
*/
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.imdb);
Movietitle = (TextView) findViewById(R.id.movietitle);
databaseHelper = new MovieDatabaseHelper(this);
Button delete = (Button) findViewById(R.id.delete);
Movietitle.setText( databaseHelper.getMovieTitle());
}
}

Well, there is lot of code you are asking for. But I can tell you the steps
Create a Model Class for your movie,, where you can hold the db records
Create list of Model Class and then when you click the item, you get the position of record in list.
Your movie Model class must have getter and setter functions to retrieve record details.