I am trying to build up a application which has a custom adapter and all ListView row has three Button. I have onClick operation for all Button in custom adapter. I can change the data source when Button clicked however I can not reload the data from custom adapter.
public class CallListViewCustomAdapter extends ArrayAdapter<Person> {
Context context;
SQLiteDatabase sb;
private static final String SAMPLE_DB_NAME = "androidData.sqlite";
private static final String SAMPLE_TABLE_NAME = "calldetails";
int layoutResourceId;
ArrayList<Person> data = new ArrayList<Person>();
public CallListViewCustomAdapter(Context context, int layoutResourceId, ArrayList<Person> data) {
super(context, layoutResourceId,data);
this.layoutResourceId = layoutResourceId;
this.context = context;
this.data = data;
}
public void refresh(ArrayList<Person>list)
{
data = list;
notifyDataSetChanged();
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
convertView = null;
View row = convertView;
final int fPosition = position;
if(row == null)
{
LayoutInflater inflater = ((Activity)context).getLayoutInflater();
row = inflater.inflate(layoutResourceId, parent, false);
final WeatherHolder holder = new WeatherHolder();
holder.phoneNumber = (TextView)row.findViewById(R.id.number);
holder.fname = (TextView)row.findViewById(R.id.fName);
holder.call = (Button)row.findViewById(R.id.callButton);
holder.skip = (Button)row.findViewById(R.id.skip);
holder.called = (Button)row.findViewById(R.id.called);
holder.called.setTag(position);
Person weather = data.get(position);
holder.phoneNumber.setText(weather.number);
holder.fname.setText(weather.fName);
holder.call.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View arg0) {
holder.called.setVisibility(View.VISIBLE);///error comes
holder.skip.setVisibility(View.VISIBLE);///error comes
Intent callIntent = new Intent(Intent.ACTION_CALL);
callIntent.setData(Uri.parse("tel:" + data.get(fPosition).number));
callIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(callIntent);
}
});
holder.called.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View arg0) {
//business logic for data source change
refresh(data);///I want listview change here
sb.close();
Log.v("ONMESSAGE", "HARD");
}
});
// holder.desc= (TextView)row.findViewById(R.id.txtViewDescription);
// holder.switchState = (Switch)row.findViewById(R.id.switch1);
row.setTag(holder);
}
return row;
}
static class WeatherHolder
{
TextView phoneNumber;
TextView fname;
Switch switchState;
Button call,skip,called;
}
}
Fragment where The list is used
public class NewFragment extends Fragment{
View rootView;
ProgressDialog pDialog;
private ListView listView1;
CallListViewCustomAdapter adapter;
private static final String SAMPLE_DB_NAME = "androidData.sqlite";
private SQLiteDatabase sampleDB;
ArrayList<Person>list;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// TODO Auto-generated method stub
rootView = inflater.inflate(R.layout.newfragment, container, false);
initDB();
list = new ArrayList<Person>();
new CallLogDetails().execute();
return rootView;
}
public int checkTable() {
int return_var = 0;
sampleDB = getActivity().openOrCreateDatabase(SAMPLE_DB_NAME, Context.MODE_PRIVATE, null);
Cursor cc = sampleDB.rawQuery("SELECT * FROM " + "calldetails", null);
if (cc != null){
if (cc.moveToFirst()) {
do {
return_var = cc.getInt(1);
} while (cc.moveToNext());
}
}
return return_var;
}
public void parseandStoreOpearation()
{
try{
CSVReader reader = new CSVReader(new InputStreamReader(getActivity().getAssets().open("batch2.csv")));
String [] nextLine;
sampleDB = getActivity().openOrCreateDatabase(SAMPLE_DB_NAME, Context.MODE_PRIVATE, null);
while ((nextLine = reader.readNext()) != null) {
//Log.v("ONMESSAGE", "YES");
Log.v("ONMESSAGE", "Name: [" + nextLine[0] + "]\nAddress: [" + nextLine[1] + "]\nEmail: [" + nextLine[2] + "]");
if(!nextLine[0].equals("First Name"))
{
//Person newPerson = new Person(nextLine[0],nextLine[1], nextLine[2], 1);
ContentValues cv = new ContentValues();
cv.put("callNumber", nextLine[2]);
cv.put("fName", nextLine[0]);
cv.put("lName", nextLine[1]);
cv.put("callflag", 1);
sampleDB.insert("calldetails", null, cv);
//list.add(newPerson);
}
}
}
catch(Exception e)
{
Log.v("ONMESSAGE", "EXCEPTION " + e.toString());
}
}
public ArrayList<Person> getList()
{
ArrayList<Person> arr = new ArrayList<Person>();
sampleDB= getActivity().openOrCreateDatabase(SAMPLE_DB_NAME, Context.MODE_PRIVATE, null);
Cursor cc = sampleDB.rawQuery("SELECT * FROM " +"calldetails", null);
if(cc != null)
if(cc.moveToFirst()){
do
{ Log.v("Datas",cc.getString(2)+ " " +cc.getString(3) + " " + cc.getString(1) + " " + cc.getInt(4));
Person ph = new Person(cc.getString(2), cc.getString(3), cc.getString(1),cc.getInt(4),cc.getInt(0));
arr.add(ph);
}while(cc.moveToNext());
}
sampleDB.close();
Log.v("ONMESSAGE", new Integer(arr.size()).toString());
return arr;
}
private void initDB() {
sampleDB = getActivity().openOrCreateDatabase(SAMPLE_DB_NAME, Context.MODE_PRIVATE, null);
sampleDB.execSQL("CREATE TABLE IF NOT EXISTS " +
"calldetails" +" (callid INTEGER PRIMARY KEY AUTOINCREMENT,"+ "callNumber TEXT," +
" fName TEXT," + "lName TEXT," + "callflag INTEGER);");
}
private class CallLogDetails extends AsyncTask<Void,Void,Void>{
#Override
protected void onPreExecute(){
pDialog = new ProgressDialog(getActivity());
pDialog.setTitle("Processing");
pDialog.setMessage("Loading Number List");
pDialog.setIndeterminate(true);
pDialog.setCancelable(false);
pDialog.show();
}
protected void onPostExecute(Void params){
super.onPostExecute(params);
pDialog.dismiss();
if(list.size() == 0)
{
list.add(new Person("No Data", "NO Data", "No Data", 0,0));
}
Collections.reverse(list);
if(adapter != null)
adapter.clear();
adapter = new CallListViewCustomAdapter(getActivity(),
R.layout.listview_row, list);
listView1 = (ListView)getActivity().findViewById(R.id.lvAlbumList);
listView1.setOnItemLongClickListener(new OnItemLongClickListener() {
#Override
public boolean onItemLongClick(AdapterView<?> arg0, View arg1,
final int arg2, long arg3) {
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
builder.setTitle("Delete Record");
builder.setMessage("Do you want to delete the record?");
builder.setPositiveButton("OK", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface arg0, int arg1) {
// TODO Auto-generated method stub
if(list.size() > 0){
sampleDB=getActivity().openOrCreateDatabase(SAMPLE_DB_NAME, SQLiteDatabase.OPEN_READWRITE, null);
//sampleDB.execSQL("DELETE FROM "+ SAMPLE_DB_NAME + " " + "WHERE callDesc= " + desc);
//sampleDB.execSQL("DELETE FROM calldetails WHERE callDesc='"+desc+"';");
Toast.makeText(getActivity(), "Row Deleted", Toast.LENGTH_LONG).show();
sampleDB.close();
new CallLogDetails().execute();
}
else
Toast.makeText(getActivity(), "This is a default object. You can not delete this.", Toast.LENGTH_LONG).show();
}
});
builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface arg0, int arg1) {
// TODO Auto-generated method stub
arg0.cancel();
}
});
builder.show();
return false;
}
});
listView1.setAdapter(adapter);
}
#Override
protected Void doInBackground(Void... arg0) {
list.clear();
if(checkTable() == 0)
{
parseandStoreOpearation();
}
list = getList();
Log.v("ONMESSAGE", "Doing");
return null;
}
}
}
For an ArrayAdapter, notifyDataSetChanged() only works if you use the add, insert, remove, and clear functions on the Adapter.
Try following code:
public void refresh(ArrayList<Person>list)
{
data.clear();
data.addAll(list);
this.notifyDataSetChanged();
}
Do something like this inside activity
CallListViewCustomAdapter thadapter=new CallListViewCustomAdapter(MainActivity.this, R.layout.list,numAl);
NumberList.setAdapter(thadapter);
#Override
public void onClick(View v) {
thadapter.notifyDataSetChanged();
}
});
Call notifyDataSetChanged() and recall adapter
Call notifyDataSetChanged() method to the ListView adapter object.
Related
I have a textview that gets data from sqlite database but when I delete a row,or change it ,I also want to change what the textview has,the data the textview contains is basically the sum of all rows specific column,so how can I update the textview when updating sqlite data?
here is my main code:
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_logged_in);
getSupportActionBar().hide();
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
tinyDB = new TinyDB(getApplicationContext());
listView = findViewById(R.id.listt);
pharmacynme = findViewById(R.id.pharmacynme);
constraintLayout = findViewById(R.id.thelayout);
mBottomSheetDialog2 = new Dialog(LoggedIn.this, R.style.MaterialDialogSheet);
inflater2 = (LayoutInflater) LoggedIn.this.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
mBottomSheetDialog = new Dialog(LoggedIn.this, R.style.MaterialDialogSheet);
content = inflater2.inflate(R.layout.activity_main2, null);
content2 = inflater2.inflate(R.layout.smalldialog, null);
total = (TextView) content2.findViewById(R.id.totalpriceofsmalldialog);
pharmacydescrr = findViewById(R.id.pharmacydiscribtion);
String nme = getIntent().getStringExtra("pharmacy_name");
String diskr = getIntent().getStringExtra("pharmacy_disk");
pharmacydescrr.setText(diskr);
pharmacynme.setText(nme);
//Listview Declaration
connectionClass = new ConnectionClass();
itemArrayList = new ArrayList<ClassListItems>();// Connection Class Initialization
etSearch = findViewById(R.id.etsearch);
etSearch.setSingleLine(true);
chat = findViewById(R.id.chat);
mDatabaseHelper = new DatabaseHelper(this);
mBottomSheetDialog2.setContentView(content2);
mBottomSheetDialog2.setCancelable(false);
mBottomSheetDialog2.getWindow().setLayout(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT);
mBottomSheetDialog2.getWindow().setGravity(Gravity.BOTTOM);
mBottomSheetDialog2.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND);
mBottomSheetDialog2.getWindow().setFlags(WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL,
WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL);
System.out.println("IDKSDKASDJKAS"+mDatabaseHelper.ifExists());
if (mDatabaseHelper.ifExists()){
mBottomSheetDialog2.show();
total.setText(mDatabaseHelper.getPriceSum());
}else {
}
chat.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
String nameid = getIntent().getStringExtra("nameid");
Intent intent = new Intent(LoggedIn.this,ChatActivity.class);
intent.putExtra("nameid",nameid);
startActivity(intent);
}
});
etSearch.addTextChangedListener(new TextWatcher() {
#Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
#Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
}
#Override
public void afterTextChanged(Editable s) {
String text = etSearch.getText().toString().toLowerCase(Locale.getDefault());
// myAppAdapter.filter(text);
}
});
SyncData orderData = new SyncData();
orderData.execute("");
}
public void AddData(String newEntry,String price,String amount){
boolean insertData = mDatabaseHelper.addData(newEntry,price,amount);
if (insertData){
toastMessage("Data Successfully inserted!");
}else {
toastMessage("Al anta 4abebto da ya youssef >:(");
}
}
private void toastMessage(String message){
Toast.makeText(this,message,Toast.LENGTH_LONG).show();
}
private class SyncData extends AsyncTask<String, String, String> {
String msg;
ProgressDialog progress;
#Override
protected void onPreExecute() //Starts the progress dailog
{
progress = ProgressDialog.show(LoggedIn.this, "Loading...",
"Please Wait...", true);
}
#Override
protected String doInBackground(String... strings) // Connect to the database, write query and add items to array list
{
runOnUiThread(new Runnable() {
public void run() {
try {
Connection conn = connectionClass.CONN(); //Connection Object
if (conn == null) {
success = false;
msg = "Sorry something went wrong,Please check your internet connection";
} else {
// Change below query according to your own database.
String nme = getIntent().getStringExtra("pharmacy_name");
System.out.println(nme);
String query = "Select StoreArabicName,StoreEnglishName,StoreSpecialty,StoreCountry,StoreLatitude,StoreLongitude,Store_description,ProductData.ProductArabicName,ProductData.ProductImage,ProductData.ProductEnglishName,ProductData.ProductDescription,ProductData.ProductPrice FROM StoresData INNER JOIN ProductData ON StoresData.StoreID = ProductData.StoreID WHERE StoreEnglishName = '"+nme+"'";
Statement stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery(query);
if (rs != null) // if resultset not null, I add items to itemArraylist using class created
{
while (rs.next()) {
try {
itemArrayList.add(new ClassListItems(rs.getString("ProductEnglishName"), rs.getString("ProductDescription"), rs.getString("ProductPrice"),rs.getString("ProductImage")));
System.out.println(rs.getString("ProductImage"));
} catch (Exception ex) {
ex.printStackTrace();
}
}
msg = "Found";
success = true;
} else {
msg = "No Data found!";
success = false;
}
}
} catch (Exception e) {
e.printStackTrace();
Writer writer = new StringWriter();
e.printStackTrace(new PrintWriter(writer));
msg = writer.toString();
Log.d("Error", writer.toString());
success = false;
}
}
});
return msg;
}
#Override
protected void onPostExecute(String msg) // disimissing progress dialoge, showing error and setting up my listview
{
progress.dismiss();
if (msg!=null){
Toast.makeText(LoggedIn.this, msg + "", Toast.LENGTH_LONG).show();
}
if (!success) {
} else {
try {
myAppAdapter = new MyAppAdapter(itemArrayList, LoggedIn.this);
listView.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
listView.setAdapter(myAppAdapter);
} catch (Exception ex) {
}
}
}
}
public class MyAppAdapter extends BaseAdapter//has a class viewholder which holds
{
private ArrayList<ClassListItems> mOriginalValues; // Original Values
private ArrayList<ClassListItems> mDisplayedValues;
public class ViewHolder {
TextView textName;
TextView textData;
TextView textImage;
ImageView producticon;
}
public List<ClassListItems> parkingList;
public Context context;
ArrayList<ClassListItems> arraylist;
private MyAppAdapter(List<ClassListItems> apps, Context context) {
this.parkingList = apps;
this.context = context;
arraylist = new ArrayList<ClassListItems>();
arraylist.addAll(parkingList);
}
#Override
public int getCount() {
return parkingList.size();
}
#Override
public Object getItem(int position) {
return position;
}
#Override
public long getItemId(int position) {
return position;
}
#Override
public View getView(final int position, final View convertView, ViewGroup parent) // inflating the layout and initializing widgets
{
View rowView = convertView;
ViewHolder viewHolder = null;
if (rowView == null) {
LayoutInflater inflater = getLayoutInflater();
rowView = inflater.inflate(R.layout.listcontent, parent, false);
viewHolder = new ViewHolder();
viewHolder.textName = rowView.findViewById(R.id.name);
viewHolder.textData = rowView.findViewById(R.id.details);
viewHolder.textImage = rowView.findViewById(R.id.sdadprice);
viewHolder.producticon = rowView.findViewById(R.id.producticon);
rowView.setTag(viewHolder);
} else {
viewHolder = (ViewHolder) convertView.getTag();
}
// here setting up names and images
viewHolder.textName.setText(parkingList.get(position).getProname() + "");
viewHolder.textData.setText(parkingList.get(position).getData());
viewHolder.textImage.setText(parkingList.get(position).getImage());
Picasso.with(context).load(parkingList.get(position).getProducticon()).into(viewHolder.producticon);
mBottomSheetDialog.setCancelable(true);
mBottomSheetDialog.getWindow().setLayout(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT);
mBottomSheetDialog.getWindow().setGravity(Gravity.BOTTOM);
mBottomSheetDialog.setContentView(content);
total.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent intent = new Intent(LoggedIn.this,Listitemsbought.class);
startActivity(intent);
}
});
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, final int position, long id) {
//What happens when you click on a place!
// Intent intent = new Intent(LoggedIn.this,MapsActivity.class);
// startActivity(intent);
final int count = 0;
final Float allitemscount = Float.parseFloat(parkingList.get(position).getImage());
TextView textView = (TextView) content.findViewById(R.id.mebuyss);
final TextView itemcount = (TextView) content.findViewById(R.id.itemcount);
Button plus = (Button) content.findViewById(R.id.plus);
Button minus = (Button) content.findViewById(R.id.minus);
Button finish = (Button) content.findViewById(R.id.finishgettingitem);
textView.setText(parkingList.get(position).getProname());
plus.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
counter = counter + 1;
itemcount.setText(String.valueOf(counter));
}
});
minus.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
counter --;
if(counter<0){
counter=0;
}
itemcount.setText(String.valueOf(counter));
}
});
finish.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
String get = itemcount.getText().toString();
Float last = Float.parseFloat(get) * Float.parseFloat(parkingList.get(position).getImage());
mBottomSheetDialog.dismiss();
AddData(parkingList.get(position).getProname(),String.valueOf(last),String.valueOf(counter));
total.setText(mDatabaseHelper.getPriceSum());
mBottomSheetDialog2.show();
doneonce = true;
}
});
// if (doneonce = true){
// Float priceofitem = parseFloat(parkingList.get(position).getImage());
// Float currentprice = parseFloat(total.getText().toString());
// Float finalfloat = priceofitem * currentprice;
// total.setText(String.valueOf(finalfloat));
//
// }
if (!mBottomSheetDialog.isShowing()){
counter = 1;
}
//
mBottomSheetDialog.show();
// if (tinyDB.getString("selecteditem").equals("English")){
// Toast.makeText(LoggedIn.this,"Sorry this ability isn't here yet",Toast.LENGTH_LONG).show();
// }else {
// Toast.makeText(LoggedIn.this,"عفوا هذه الخاصية ليست متوفرة حاليا",Toast.LENGTH_LONG).show();
// }
}
});
return rowView;
}
public void filter(String charText) {
charText = charText.toLowerCase(Locale.getDefault());
itemArrayList.clear();
if (charText.length() == 0) {
itemArrayList.addAll(arraylist);
} else {
for (ClassListItems st : arraylist) {
if (st.getProname().toLowerCase(Locale.getDefault()).contains(charText)) {
itemArrayList.add(st);
}
}
}
notifyDataSetChanged();
}
}
private Float parseFloat(String s){
if(s == null || s.isEmpty())
return 0.0f;
else
return Float.parseFloat(s);
}
And here is my DatabaseHelper.java
public class DatabaseHelper extends SQLiteOpenHelper {
private static final String TAG = "DatabaseHelper";
private static final String TABLE_NAME = "DatabaseHelper";
private static final String NAME = "Name";
private static final String PRICE = "Price";
private static final String AMOUNT = "Amount";
public DatabaseHelper(Context context) {
super(context, TABLE_NAME, null , 4);
}
#Override
public void onCreate(SQLiteDatabase db) {
String createTable = "CREATE TABLE " + TABLE_NAME + " ("+PRICE+" TEXT, "+ NAME + " TEXT,"+ AMOUNT +" TEXT)";
db.execSQL(createTable);
}
#Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
db.execSQL("DROP TABLE IF EXISTS "+ TABLE_NAME);
onCreate(db);
}
public boolean addData(String item, String Price,String amount){
SQLiteDatabase db = this.getWritableDatabase();
ContentValues contentValues = new ContentValues();
contentValues.put(PRICE,Price);
contentValues.put(NAME, item);
contentValues.put(AMOUNT, amount);
Log.d(TAG, "addData: Adding " + item + " to " + TABLE_NAME);
long insert = db.insert(TABLE_NAME,null,contentValues);
if (insert == -1){
return false;
}else {
return true;
}
}
public Cursor getDataOfTable(){
SQLiteDatabase db = this.getWritableDatabase();
String query = "SELECT Name,Amount FROM " + TABLE_NAME ;
Cursor data = db.rawQuery(query, null);
return data;
}
public String getPriceSum(){
SQLiteDatabase db = this.getWritableDatabase();
String query = "SELECT COALESCE(SUM(Price), 0) FROM " + TABLE_NAME;
Cursor price = db.rawQuery(query, null);
String result = "" + price.getString(0);
price.close();
db.close();
return result;
}
public boolean ifExists()
{
SQLiteDatabase db = this.getWritableDatabase();
Cursor cursor = null;
String checkQuery = "SELECT * FROM " + TABLE_NAME + " LIMIT 1";
cursor= db.rawQuery(checkQuery,null);
boolean exists = (cursor.getCount() > 0);
cursor.close();
return exists;
}
public void delete(String nameofrow) {
SQLiteDatabase db = this.getWritableDatabase();
db.execSQL("delete from "+TABLE_NAME+" where "+NAME+"='"+nameofrow+"'");
}
}
Any help?!
The method getPriceSum() should return the sum and not a Cursor:
public String getPriceSum(){
SQLiteDatabase db = this.getWritableDatabase();
String query = "SELECT COALESCE(SUM(Price), 0) FROM " + TABLE_NAME;
Cursor c = db.rawQuery(query, null);
String result = "";
if (c.moveToFirst()) result = "" + c.getString(0);
c.close();
db.close();
return result;
}
I don't think that you need the if block:
if (mDatabaseHelper.ifExists()) {
.......................
}
All you need to do is:
total.setText(mDatabaseHelper.getPriceSum());
I am new to android development and must take the value of the id in the clicked item database.
Already searched several posts but not found the answer .
Below is my code Listview :
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.seleciona_jogador_act);
final BancoController bc = new BancoController(this);
final ArrayList<JogadorEntidade> jogadorEntidade = bc.arrayJogador(this);
listView = (ListView) findViewById(R.id.lvSelecionar);
final SelecionaAdapter adapter = new SelecionaAdapter(this, R.layout.adapter_seleciona, jogadorEntidade);
FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
fab.setBackgroundTintList(ColorStateList.valueOf(background));
fab.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
alertInserirJogador(SelecionaJogadorAct.this);
}
});
listView.setAdapter(adapter);
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
//I NEED THIS CODE
Context context = getApplicationContext();
CharSequence text = "ID: " + ", Posicao: " + position;
int duration = Toast.LENGTH_SHORT;
Toast.makeText(context, text, duration).show();
//bc.deletaRegistro(id_player);
Intent intent = getIntent();
SelecionaJogadorAct.this.finish();
startActivity(intent);
}
});
}
My Adapter:
public class SelecionaAdapter extends ArrayAdapter<JogadorEntidade> {
Context context;
int layoutID;
ArrayList<JogadorEntidade> alJogador;
public SelecionaAdapter(Context context, int layoutID, ArrayList<JogadorEntidade> alJogador){
super(context, layoutID, alJogador);
this.context = context;
this.alJogador = alJogador;
this.layoutID = layoutID;
}
#Override
public View getView(int position, View convertView, ViewGroup parent){
View row = convertView;
PlayerHolder holder = null;
if (row == null){
LayoutInflater inflater = ((Activity)context).getLayoutInflater();
row = inflater.inflate(layoutID, parent, false);
holder = new PlayerHolder();
holder.txtNome = (TextView)row.findViewById(R.id.txtNomeSelecionar);
holder.txtVitorias = (TextView)row.findViewById(R.id.txtVitóriasSelecionar);
holder.txtDerrotas = (TextView)row.findViewById(R.id.txtDerrotasSelecionar);
row.setTag(holder);
}else {
holder = (PlayerHolder)row.getTag();
}
JogadorEntidade jogadorEntidade = alJogador.get(position);
holder.txtNome.setText(jogadorEntidade.getNome());
holder.txtVitorias.setText("V: " + jogadorEntidade.vitórias);
holder.txtDerrotas.setText("D: " + jogadorEntidade.derrotas);
return row;
}
static class PlayerHolder{
TextView txtNome;
TextView txtVitorias;
TextView txtDerrotas;
}
JogadorEntidade:
public class JogadorEntidade {
public String nome;
public Integer id_jogador;
public String vitórias;
public String derrotas;
public Integer getId_jogador() {
return id_jogador;
}
public void setId_player(int id_player) {
this.id_jogador = id_player;
}
public String getNome() {
return nome;
}
public void setNome(String nome) {
this.nome = nome;
}
public String getVitórias() {
return vitórias;
}
public void setVitórias(String vitórias) {
this.vitórias = vitórias;
}
public String getDerrotas() {
return derrotas;
}
public void setDerrotas(String derrotas) {
this.derrotas = derrotas;
}
public JogadorEntidade(String nome, String vitórias, String derrotas){
super();
this.nome = nome;
this.vitórias = vitórias;
this.derrotas = derrotas;
}
public JogadorEntidade(){}
public void insereJogador(JogadorEntidade jogadorEntidade) {
db = banco.getWritableDatabase();
ContentValues values = new ContentValues();
values.put(banco.NOME_JOGADOR, jogadorEntidade.getNome());
values.put(banco.VITORIAS, jogadorEntidade.getVitórias());
values.put(banco.DERROTAS, jogadorEntidade.getDerrotas());
db.insert(CriaBanco.TABELA_JOGADOR, null, values);
db.close();
}
public Cursor carregaJogador() {
Cursor cursor;
String[] campos = {banco.NOME_JOGADOR, banco.VITORIAS, banco.DERROTAS};
db = banco.getReadableDatabase();
cursor = db.query(banco.TABELA_JOGADOR, campos, null, null, null, null, null, null);
if (cursor != null) {
cursor.moveToFirst();
}
db.close();
return cursor;
}
public void deletaRegistro(int id){
String where = CriaBanco.ID_JOGADOR + "=" + id;
db = banco.getReadableDatabase();
db.delete(CriaBanco.TABELA_JOGADOR, where, null);
db.close();
}
public ArrayList<JogadorEntidade> arrayJogador(Context context) {
ArrayList<JogadorEntidade> al = new ArrayList<JogadorEntidade>();
BancoController bancoController = new BancoController(context);
Cursor cursor;
cursor = bancoController.carregaJogador();
if (cursor != null) {
if (cursor.moveToFirst()) {
String nome = cursor.getString(cursor.getColumnIndex(banco.NOME_JOGADOR));
String vitorias = cursor.getString(cursor.getColumnIndex(banco.VITORIAS));
String derrotas = cursor.getString(cursor.getColumnIndex(banco.DERROTAS));
JogadorEntidade jogadorEntidade = new JogadorEntidade(nome, vitorias, derrotas);
al.add(jogadorEntidade);
while (cursor.moveToNext()) {
nome = cursor.getString(cursor.getColumnIndex(banco.NOME_JOGADOR));
vitorias = cursor.getString(cursor.getColumnIndex(banco.VITORIAS));
derrotas = cursor.getString(cursor.getColumnIndex(banco.DERROTAS));
jogadorEntidade = new JogadorEntidade(nome, vitorias, derrotas);
al.add(jogadorEntidade);
}
}
}
return al;
}
First you need to request the id when making the query (if the id is the one created in the database the column mame is _id or you can use tablename._id or whatever you need):
String[] campos = {"_id", banco.NOME_JOGADOR, banco.VITORIAS, banco.DERROTAS};
Then you need to add the id to the object when you read the cursor:
public ArrayList<JogadorEntidade> arrayJogador(Context context) {
ArrayList<JogadorEntidade> al = new ArrayList<JogadorEntidade>();
BancoController bancoController = new BancoController(context);
Cursor cursor;
cursor = bancoController.carregaJogador();
if (cursor != null) {
if (cursor.moveToFirst()) {
String nome = cursor.getString(cursor.getColumnIndex(banco.NOME_JOGADOR));
String vitorias = cursor.getString(cursor.getColumnIndex(banco.VITORIAS));
String derrotas = cursor.getString(cursor.getColumnIndex(banco.DERROTAS));
long id = cursor.getLong(cursor.getColumnIndex("_id",0));
JogadorEntidade jogadorEntidade = new JogadorEntidade(id, nome, vitorias, derrotas);
al.add(jogadorEntidade);
while (cursor.moveToNext()) {
nome = cursor.getString(cursor.getColumnIndex(banco.NOME_JOGADOR));
vitorias = cursor.getString(cursor.getColumnIndex(banco.VITORIAS));
derrotas = cursor.getString(cursor.getColumnIndex(banco.DERROTAS));
long id = cursor.getLong(cursor.getColumnIndex("_id",0));
jogadorEntidade = new JogadorEntidade(id, nome, vitorias, derrotas);
al.add(jogadorEntidade);
}
}
}
return al;
}
Anyway this is not the way to go in android. You should read all the list and then show it. You should use the viewholder pattern and only load the player when you are going to show it. Also instead of using a list you should move to recyclerviews. Listviews can be consider deprecated at this point. See the tutorial: http://developer.android.com/training/material/lists-cards.html
I am trying to display result from Database in a listView which is clickable On long click ,items can be deleted and on click it go to another activity. So I create an activity called editdeletedoctor
public class editdeletedoctor extends Activity {
private ArrayList<String> results = new ArrayList<String>();
private String tableName = TableData.TableInfo.TABLE_DOCTOR;
private SQLiteDatabase newDB;
private ArrayList<doctorClass> doctor_List = new ArrayList<doctorClass>();
public static String MODEL_TO_EDIT = "MODEL_TO_EDIT";
public ListView list;
public ArrayAdapter<String> adapter;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_list);
init();
openAndQueryDatabase();
displayResultList();
}
private void init() {
list = (ListView) findViewById(R.id.list);
list.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
Intent intent = new Intent(editdeletedoctor.this,
registerdoctor.class);
intent.putExtra("theText", doctor_List.get(position).getUsername());
intent.putExtra(editdeletedoctor.MODEL_TO_EDIT,doctor_List.get(position));
editdeletedoctor.this.finish();
startActivity(intent);
}
});
list.setOnItemLongClickListener(new OnItemLongClickListener() {
#Override
public boolean onItemLongClick(AdapterView<?> parent, View view,
final int position, long id) {
Builder dialog = new AlertDialog.Builder(editdeletedoctor.this);
dialog.setTitle("Are you sure you want to delete This doctor?");
dialog.setPositiveButton("Yes", new OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
doctorClass doctor = doctor_List.get(position);
doctor_List.remove(position);
DatabaseOperations db = new DatabaseOperations(getApplicationContext());
try {
db.open();
HashMap<String, String> conditionKV = new HashMap<String, String>();
conditionKV.put(TableData.TableInfo.DOCTOR_ID, doctor.getId() + "");
db.deleteDoctor(conditionKV);
results.remove(position);
adapter.notifyDataSetChanged();
} catch (SQLiteException se) {
Log.e(getClass().getSimpleName(),
"Could not create or Open the database");
} finally {
if (db != null)
db.close();
}
dialog.dismiss();
}
});
dialog.setNegativeButton("No", new OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
});
dialog.show();
return false;
}
});
}
private void displayResultList() {
adapter = new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1, results);
list.setAdapter(adapter);
list.setTextFilterEnabled(true);
}
private void openAndQueryDatabase() {
DatabaseOperations db = new DatabaseOperations(getApplicationContext());
try {
db.open();
doctor_List = db.getDoctor(null);
for (doctorClass inc : doctor_List) {
if(inc.getId()==TableData.TableInfo.userID)
results.add("Name: " + inc.getUsername() + " Phone:"
+ inc.getPhone() + ",Address: "
+ inc.getAddress());
}
} catch (SQLiteException se) {
Log.e(getClass().getSimpleName(),
"Could not create or Open the database");
} finally {
if (db != null)
db.close();
}
}
}
And in the DatabaseOperations.java class :
public DatabaseOperations open() throws SQLException {
ourHelper = new DatabaseOperations(context);
ourDatabase = ourHelper.getWritableDatabase();
return this;
}
public void close() {
ourHelper.close();
}
public ArrayList<doctorClass> getDoctor(HashMap<String, String> conditionKV) {
Cursor m_cursor = get(TableData.TableInfo.TABLE_DOCTOR, conditionKV);
ArrayList<doctorClass> list = new ArrayList<doctorClass>();
if (m_cursor.moveToFirst()) {
do {
doctorClass model = new doctorClass();
if (m_cursor.getString(m_cursor.getColumnIndex(TableData.TableInfo.DOCTOR_ID)) != null)
model.setId(m_cursor.getInt(m_cursor.getColumnIndex(TableData.TableInfo.DOCTOR_ID)));
if (m_cursor.getString(m_cursor.getColumnIndex(TableData.TableInfo.DOCTOR_NAME)) != null)
model.setUsername(m_cursor.getString(m_cursor
.getColumnIndex(TableData.TableInfo.DOCTOR_NAME)));
if (m_cursor.getString(m_cursor.getColumnIndex(TableData.TableInfo.DOCTOR_PASS)) != null)
model.setPassword(m_cursor.getString(m_cursor
.getColumnIndex(TableData.TableInfo.DOCTOR_PASS)));
if (m_cursor.getString(m_cursor.getColumnIndex(TableData.TableInfo.DOCTOR_MAIL)) != null)
model.setEmail(m_cursor.getString(m_cursor
.getColumnIndex(TableData.TableInfo.DOCTOR_MAIL)));
if (m_cursor.getString(m_cursor.getColumnIndex(TableData.TableInfo.DOCTOR_PHONE)) != null)
model.setPhone(m_cursor.getString(m_cursor
.getColumnIndex(TableData.TableInfo.DOCTOR_PHONE)));
if (m_cursor.getString(m_cursor.getColumnIndex(TableData.TableInfo.DOCTOR_ADDRESS)) != null)
model.setAddress(m_cursor.getString(m_cursor
.getColumnIndex(TableData.TableInfo.DOCTOR_ADDRESS)));
if (m_cursor.getString(m_cursor.getColumnIndex(TableData.TableInfo.DOCTOR_GENDER)) != null)
model.setGender(m_cursor.getString(m_cursor
.getColumnIndex(TableData.TableInfo.DOCTOR_GENDER)));
list.add(model);
} while (m_cursor.moveToNext());
}// end if
return list;
}
public Cursor get(String tableName, HashMap<String, String> conditionKV) {
String whereClause = null;
if (conditionKV != null)
whereClause = formatWherecondition(conditionKV);
String completeQuery = "SELECT * FROM " + tableName + " ";
if (whereClause != null) {
completeQuery += " WHERE " + whereClause;
}
return ourDatabase.rawQuery(completeQuery, null);
}
public String formatWherecondition(HashMap<String, String> conditionKV) {
try {
String result = "";
if (conditionKV.size() < 1) {
throw new Exception("Hahsmap condition Empty");
}
Iterator l_iterator = conditionKV.keySet().iterator();
boolean isOneField = false;
while (l_iterator.hasNext()) {
String l_key = (String) l_iterator.next();
String l_value = conditionKV.get(l_key);
if (isOneField)
result = result + " AND ";
result = result + l_key + "='" + l_value + "' ";
isOneField = true;
}
return result;
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
public void deleteDoctor(HashMap<String, String> conditionKV) {
delete(TableData.TableInfo.TABLE_DOCTOR, conditionKV);
}
private void delete(String tableName, HashMap<String, String> conditionKV) {
String whereClause = null;
if (conditionKV == null)
return;
whereClause = formatWherecondition(conditionKV);
String completeQuery = "DELETE FROM " + tableName + " ";
if (whereClause != null) {
completeQuery += " WHERE " + whereClause;
ourDatabase.execSQL(completeQuery);
}
}
When running, an error occured, Here is the logcat
Please help me .
Thank you
Are you sure the "context" you are using here is not null ?
How about rewriting the open() function this way and calling it via open(getApplicationContext()); ?
public DatabaseOperations open(Context context) throws SQLException {
ourHelper = new DatabaseOperations(context);
ourDatabase = ourHelper.getWritableDatabase();
return this;
}
In my application, I am allowing user to send a alert message to some numbers. User can write any text of his own choice in the EditText or he can select a text from the pre-defined text from the spinner. Earlier I was saving the text to the SharedPreferences but now I want it to be in SQLite.I am able to save the contact numbers to the database for which user wants to send the message but I am having trouble in saving the message to database. I want that when user entered his own text or selected any text from the spinner after that he press save button and the text is saved to database.Please Help.
P.S _ I think am having trouble in calling method from database to button onclick.
Please have a look on my code and suggest me what to do.
MainActivity.java
public class MainActivity extends Activity implements LocationListener {
String separator = "; ";
private Button btn_cntct;
private EditText message;
LinearLayout linearLayoutSec;
private Button GPSState;
Button b_alert;
Button b_save_message;
public int REQUESTCODE = 1;
int temp;
ScrollView ScrView;
Context c = MainActivity.this;
Button AlertMessages;
private static ArrayList<ContactItems> selectedContactList = new ArrayList<ContactItems>();
static CustomAdapter adapter;
public static String[] myvalue = new String[1];
Spinner spinner;
static String[] alert = { " ", "I am in danger", "Help Me", "Watch Out",
"Look For Me", "Cover ME" };
MySQLiteHelper dbHelper;
String savedMessage;
Button save;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
message = (EditText) findViewById(R.id.et_message);
// message.setFocusable(false);
dbHelper = new MySQLiteHelper(this);
String dis = dbHelper.getMsg();
if (dis != null) {
message.setText(dis);
}
bsave = (Button) findViewById(R.id.b_save);
bsave.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
String str = message.getText().toString();
dbHelper.updateMsg(str);
}
});
spinner = (Spinner) findViewById(R.id.Spin_alert_message);
ArrayAdapter<String> adp = new ArrayAdapter<String>(
getApplicationContext(), android.R.layout.simple_spinner_item,
alert);
spinner.setAdapter(adp);
spinner.setOnItemSelectedListener(new OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> arg0, View arg1,
int position, long id) {
String selectedItem = alert[position];
message.setText(selectedItem);
// loads the text that has been stored to SP and set it to
// EditText
//message.setText(pref.getString("AutoSave", ""));
// to bring cursor to front
message.setSelection(message.getText().length());
}
#Override
public void onNothingSelected(AdapterView<?> arg0) {
}
});
/************************** saving custom message *****************************/
// for saving text that user can change as per need
ListView contactlist = (ListView) findViewById(R.id.contactListitems);
Resources res = getResources();
adapter = new CustomAdapter(MainActivity.this, selectedContactList, res,MainActivity.this);
contactlist.setAdapter(adapter);
/********************************* GPS *******************************/
// checking if GPS is already on or not.
// If not then displaying the alert dialog
// requesting user to On GPS.
GPSState = (Button) findViewById(R.id.bGPSstate);
boolean isGPSEnabled = false; //
// Declaring a Location Manager
LocationManager locationManager;
locationManager = (LocationManager) getApplicationContext()
.getSystemService(LOCATION_SERVICE);
// getting GPS status
isGPSEnabled = locationManager
.isProviderEnabled(LocationManager.GPS_PROVIDER);
if (!isGPSEnabled) {
// no GPS provider is enabled
// displaying GPS status on the button and and opening GPS settings
GPSState.setText("GPS is off.turn it on");
GPSState.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
startActivityForResult(
new Intent(
android.provider.Settings.ACTION_LOCATION_SOURCE_SETTINGS),
REQUESTCODE);
}
});
// setting up the dialog box for GPS Settings
// creating alertdialog
AlertDialog.Builder builder = new AlertDialog.Builder(c);
builder.setTitle("Settings");
builder.setMessage("Enable GPS for the Application");
builder.setPositiveButton("GPS Setting",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
startActivity(new Intent(
android.provider.Settings.ACTION_LOCATION_SOURCE_SETTINGS));
dialog.dismiss();
}
});
builder.setNegativeButton("Cancel",
new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
new AlertDialog.Builder(MainActivity.this)
.setTitle("How to use Application")
.setMessage(
"You must enable the GPS in order to use this application. Press Activate and then press Power Button twice in order to send the alert message to the selected contacts")
.setNeutralButton(
"OK",
new DialogInterface.OnClickListener() {
#Override
public void onClick(
DialogInterface dialog,
int which) {
// do something // for //
// returning back to // //
// application
dialog.cancel();
}
}).show();
dialog.dismiss();
}
});
builder.show();
} else {
GPSState.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
startActivityForResult(
new Intent(
android.provider.Settings.ACTION_LOCATION_SOURCE_SETTINGS),
REQUESTCODE);
}
});
}
// defining button elements for picking contacts from phone-book
btn_cntct = (Button) findViewById(R.id.bpickperson);
btn_cntct.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View arg0) {
if (selectedContactList.size() < 4) {
// TODO Auto-generated method stub
// using Intent for fetching contacts from phone-book
Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
intent.setType(ContactsContract.CommonDataKinds.Phone.CONTENT_ITEM_TYPE);
startActivityForResult(intent, REQUESTCODE);
} else {
// print toast for not allowing user to add more contacts
Toast.makeText(getApplicationContext(),
"You Can Only Add 4 Contacts ", Toast.LENGTH_SHORT)
.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.main, menu);
return true;
}
// calling onActivityResult when contacts has been selected from the
// phone-book, giving back the REQUESTCODE i started it with, the RC it
// returned with
// any additional data from it.
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
// TODO Auto-generated method stub
super.onActivityResult(requestCode, resultCode, data);
boolean isGPSEnabled = false;
GPSState = (Button) findViewById(R.id.bGPSstate);
LocationManager locationManager;
locationManager = (LocationManager) getApplicationContext()
.getSystemService(LOCATION_SERVICE);
isGPSEnabled = locationManager
.isProviderEnabled(LocationManager.GPS_PROVIDER);
if (!isGPSEnabled)
GPSState.setText("GPS is off.Turn it on");
else
GPSState.setText("GPS is on");
if (data != null) {
Uri uri = data.getData();
Log.i("data", uri.toString());
if (uri != null) {
Cursor c = null;
try {
c = getContentResolver()
.query(uri,
new String[] {
ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME,
ContactsContract.CommonDataKinds.Phone.NUMBER,
ContactsContract.CommonDataKinds.Phone.TYPE },
null, null, null);
if (c != null && c.moveToFirst()) {
final ContactItems item = new ContactItems(
c.getString(0), c.getString(1), c.getInt(2));
item.setName(c.getString(0));
item.setNumber(c.getString(1));
item.setType(c.getInt(2));
selectedContactList.add(item);
Set<ContactItems> s = new TreeSet<ContactItems>(
new Comparator<ContactItems>() {
#Override
public int compare(ContactItems o1,
ContactItems o2) {
// for preventing duplicacy of contacts
// and calling toast
if (o1.number.equals(o2.number)) {
Toast.makeText(
getApplicationContext(),
"Selected Number Already Exists",
Toast.LENGTH_SHORT).show();
} else {
}
return o1.getNumber().compareTo(
o2.getNumber());
}
});
s.addAll(selectedContactList);
selectedContactList.clear();
selectedContactList.addAll(s);
adapter.notifyDataSetChanged();
// save the task list to preference
dbHelper.insertContact(item);
}
} finally {
if (c != null) {
c.close();
}
}
}
}
}
#Override
public void onLocationChanged(Location arg0) {
// TODO Auto-generated method stub
}
#Override
public void onProviderDisabled(String arg0) {
// TODO Auto-generated method stub
}
#Override
public void onProviderEnabled(String arg0) {
// TODO Auto-generated method stub
}
#Override
public void onStatusChanged(String arg0, int arg1, Bundle arg2) {
// TODO Auto-generated method stub
}
/*
* #Override public void onSaveInstanceState(Bundle outState) {
* super.onSaveInstanceState(outState); // You put the content of your list,
* which is this.mCachedData, in the // state
* outState.putParcelableArrayList("ABC", selectedContactList); }
*/
#Override
public void onResume() {
super.onResume();
boolean isGPSEnabled = false;
GPSState = (Button) findViewById(R.id.bGPSstate);
LocationManager locationManager;
locationManager = (LocationManager) getApplicationContext()
.getSystemService(LOCATION_SERVICE);
isGPSEnabled = locationManager
.isProviderEnabled(LocationManager.GPS_PROVIDER);
if (!isGPSEnabled)
GPSState.setText("GPS is off.Turn it on");
else
GPSState.setText("GPS is on");
}
}// final parentheses
MySQLiteHelper.java
public class MySQLiteHelper extends SQLiteOpenHelper {
public static final String TABLE_NAME = "userdetails";
public static final String TABLE_NAME_MSG = "usermessage";
public static final String COLUMN_ID = "_id";
public static final String COLUMN_NUMBER = "NUMBER";
public static final String COLUMN_NAME = "name";
public static final String COLUMN_TYPE = "type";
public static final String COLUMN_ID_MSG = "_id";
public static final String COLUMN_MSG = "message";
private static final String DATABASE_NAME = "userInformation.db";
private static final int DATABASE_VERSION = 1;
private static final String LOG = "DatabaseHelper";
// Database creation sql statement
private static final String DATABASE_CREATE_TABLE_CONTACTS = "create table "
+ TABLE_NAME + "(" + COLUMN_ID
+ " integer primary key autoincrement, " + COLUMN_NAME
+ " text not null,"+COLUMN_NUMBER+" text not null,"+COLUMN_TYPE+" text not null);";
private static final String DATABASE_CREATE_TABLE_MSG = "create table "
+ TABLE_NAME_MSG + "(" + COLUMN_ID_MSG
+ " integer primary key autoincrement, " + COLUMN_MSG + " text not null);";
private static final String DATABASE_INSERT_MSG = "insert into "
+ TABLE_NAME_MSG + "(" + COLUMN_MSG+") VALUES('enter your message');";
public MySQLiteHelper(Context context) {
super(context, DATABASE_NAME, null, DATABASE_VERSION);
}
#Override
public void onCreate(SQLiteDatabase database) {
database.execSQL(DATABASE_CREATE_TABLE_CONTACTS);
database.execSQL(DATABASE_CREATE_TABLE_MSG);
database.execSQL(DATABASE_INSERT_MSG);
}
#Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
Log.w(MySQLiteHelper.class.getName(),
"Upgrading database from version " + oldVersion + " to "
+ newVersion + ", which will destroy all old data");
db.execSQL("DROP TABLE IF EXISTS " + TABLE_NAME);
onCreate(db);
}
public long insertContact(ContactItems contItem) {
SQLiteDatabase db = this.getWritableDatabase();
ContentValues values = new ContentValues();
values.put(COLUMN_NAME, contItem.getName());
values.put(COLUMN_NUMBER, contItem.getNumber());
values.put(COLUMN_TYPE, contItem.getType());
// insert row
long result = db.insert(TABLE_NAME, null, values);
// assigning tags to todo
/*for (long tag_id : tag_ids) {
createTodoTag(todo_id, tag_id);
}*/
return result;
}
public ArrayList<ContactItems> getAllContacts() {
ArrayList<ContactItems> contactList = new ArrayList<ContactItems>();
String selectQuery = "SELECT * FROM " + TABLE_NAME;
Log.e(LOG, selectQuery);
SQLiteDatabase db = this.getReadableDatabase();
Cursor c = db.rawQuery(selectQuery, null);
// looping through all rows and adding to list
if (c.moveToFirst()) {
do {
ContactItems conItems = new ContactItems();
conItems.setName(c.getString((c.getColumnIndex(COLUMN_NAME))));
conItems.setNumber((c.getString(c.getColumnIndex(COLUMN_NUMBER))));
conItems.setType(Integer.parseInt(c.getString(c.getColumnIndex(COLUMN_TYPE))));
// adding to todo list
contactList.add(conItems);
} while (c.moveToNext());
}
return contactList;
}
public void updateMsg(String msg) {
// TODO Auto-generated method stub
// String selectQuery = "update " + TABLE_NAME_MSG+" set "+COLUMN_MSG+" = '"+msg+"' where "+COLUMN_ID_MSG+" = 1";
ContentValues values = new ContentValues();
values.put(COLUMN_MSG, msg);
SQLiteDatabase db = this.getReadableDatabase();
db.update(TABLE_NAME_MSG, values, null, null);
}
public String getMsg() {
String message ="";
String selectQuery = "SELECT * FROM " + TABLE_NAME_MSG;
SQLiteDatabase db = this.getReadableDatabase();
Cursor c = db.rawQuery(selectQuery, null);
if (c.moveToFirst()) {
do {
message = c.getString(c.getColumnIndex(COLUMN_MSG));
} while (c.moveToNext());
}
// TODO Auto-generated method stub
Log.e(LOG, "message = "+message);
return message;
}
public int removeData(String number) {
// TODO Auto-generated method stub
SQLiteDatabase db = this.getReadableDatabase();
//db.drawQuery(deleteQuery, null);
return db.delete(TABLE_NAME, COLUMN_NUMBER + "='" + number+"'", null) ;
}
}
CustomAdapter.java
public class CustomAdapter extends BaseAdapter {
/*********** Declare Used Variables *********/
private Activity activity;
private ArrayList<ContactItems> data;
private static LayoutInflater inflater = null;
public Resources res;
MySQLiteHelper dbHelper;
// ListModel tempValues=null;
int i = 0;
String selectedNum = " ";
Context contxt;
/************* CustomAdapter Constructor *****************/
public CustomAdapter(Activity a, ArrayList<ContactItems> d,
Resources resLocal,Context context) {
/********** Take passed values **********/
activity = a;
data = d;
res = resLocal;
contxt= context;
dbHelper= new MySQLiteHelper(contxt);
/*********** Layout inflator to call external xml layout () ***********/
inflater = (LayoutInflater) activity
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
/******** What is the size of Passed Arraylist Size ************/
public int getCount() {
if (data.size() <= 0)
return 1;
return data.size();
}
public Object getItem(int position) {
return position;
}
public long getItemId(int position) {
return position;
}
/********* Create a holder Class to contain inflated xml file elements *********/
public static class ViewHolder {
public TextView text;
public TextView textNumber;
public ImageView image;
}
/****** Depends upon data size called for each row , Create each ListView row *****/
#SuppressLint("DefaultLocale")
public View getView(int position, View convertView, ViewGroup parent) {
final int pos = position;
View vi = convertView;
ViewHolder holder;
// check if converView is null, if it is null it probably means
if (convertView == null) {
/****** Inflate tabitem.xml file for each row ( Defined below ) *******/
vi = inflater.inflate(R.layout.contactlistitem, null);
/****** View Holder Object to contain tabitem.xml file elements ******/
// if it is not null, just reuse it from the recycler
holder = new ViewHolder();
holder.text = (TextView) vi.findViewById(R.id.contactname);
holder.textNumber = (TextView) vi.findViewById(R.id.contactnumber);
holder.image = (ImageView) vi.findViewById(R.id.deleteimage);
/************ Set holder with LayoutInflater ************/
vi.setTag(holder);
} else
holder = (ViewHolder) vi.getTag();
if (data.size() <= 0) {
holder.text.setText("Add");
holder.textNumber.setText(" ");
holder.image.setVisibility(View.GONE);
} else {
/***** Get each Model object from Arraylist ********/
/************ Set Model values in Holder elements ***********/
holder.text.setText("" + data.get(position).getName());
holder.textNumber.setText("" + data.get(position).getNumber());
holder.image.setVisibility(View.VISIBLE);
holder.image.setImageResource(res.getIdentifier("delete_button",
null, null));
holder.image.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
AlertDialog.Builder build = new AlertDialog.Builder(
activity);
build.setTitle("Delete");
build.setMessage("Are You Sure");
build.setPositiveButton("Delete",
new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog,
int which) {
// TODO Auto-generated method stub
dbHelper.removeData(data.get(pos).getNumber());
data.remove(pos);
MainActivity.adapter.notifyDataSetChanged();
dialog.dismiss();
}
});
/*
* data.remove(pos);
* MainActivity.adapter.notifyDataSetChanged();
*/
build.setNegativeButton("Cancel",
new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog,
int which) {
// TODO Auto-generated method stub
dialog.dismiss();
}
});
build.show();
}
});
/******** Set Item Click Listner for LayoutInflater for each row *******/
}
// return the view for a single item in the listview
return vi;
}
}
ContactItems.java
public class ContactItems implements Parcelable {
String name = "";
String number = "";
int type = 0;
public ContactItems(String name, String number, int type) {
super();
this.name = name;
this.number = number;
this.type = type;
}
public ContactItems(Parcel source) {
// TODO Auto-generated constructor stub
this.name = source.readString();
this.number = source.readString();
this.type = source.readInt();
}
public ContactItems() {
// TODO Auto-generated constructor stub
super();
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getNumber() {
return number;
}
public void setNumber(String number) {
this.number = number;
}
public int getType() {
return type;
}
public void setType(int type) {
this.type = type;
}
#Override
public int describeContents() {
// TODO Auto-generated method stub
return 0;
}
public static final Parcelable.Creator<ContactItems> CREATOR = new Parcelable.Creator<ContactItems>() {
#Override
public ContactItems createFromParcel(Parcel source) {
return new ContactItems(source);
}
#Override
public ContactItems[] newArray(int size) {
return new ContactItems[size];
}
};
#Override
public void writeToParcel(Parcel dest, int flags) {
// TODO Auto-generated method stub
dest.writeString(name);
dest.writeString(number);
dest.writeInt(type);
}
Simply call the method for inserting or updating the message into database in your button's click and before calling that method just get the value of EditText into some variable and pass that variable as parameter for inserting into database.
Try out as below:
save.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View arg0) {
String str = message.getText().toString();
dbHelper.updateMsg(str);
}
});
EDITED:
public boolean updateMsg(String msg) {
ContentValues values = new ContentValues();
values.put(COLUMN_MSG, msg);
SQLiteDatabase db = this.getReadableDatabase();
return db.update(TABLE_NAME_MSG, values, COLUMN_ID_MSG +"=1"+, null)>0;
}
I have a trouble with my CursorAdapter data updating.
When I press on the "star" img of listview row item i needs to get changes in DB column "isFav" (0 to 1 and vice versa) and show completed star or free star(favorite checkbox e.g.).
But when I pressing on the star - current row star is not updating, but last of showed rows get affected, like as I press on it. Screenshot: http://tinypic.com/r/2eph8uf/5
The following code is placing below:
private class MyAdapter extends CursorAdapter {
private LayoutInflater mLayoutInflater;
public MyAdapter(Context context, Cursor c, boolean autoRequery) {
super(context, c, autoRequery);
mContext = context;
mLayoutInflater = LayoutInflater.from(context);
}
News tmp = new News(0,0,null,null,0,0);
#Override
public void bindView(View v, Context context, Cursor c) {
tmp.setName(c.getString(c.getColumnIndexOrThrow(dbHelper.NAME)));
tmp.setDescr(c.getString(c.getColumnIndexOrThrow(dbHelper.DESCRIPTION)));
tmp.setPubdate(c.getLong(c.getColumnIndexOrThrow(dbHelper.DATE)));
tmp.setGuid(c.getInt(c.getColumnIndexOrThrow(dbHelper.UID)));
tmp.setIsFav(c.getInt(c.getColumnIndexOrThrow(dbHelper.IS_FAV)));
tmp.setIsRead(c.getInt(c.getColumnIndexOrThrow(dbHelper.IS_READ)));
TextView title_text = (TextView) v.findViewById(R.id.text);
if (title_text != null) {
title_text.setText(tmp.getName() + " " + convertLongToDate(tmp.getPubdate()));
}
title_text.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
Intent _intent = new Intent(getActivity(), ItemActivity.class);
_intent.putExtra("title", tmp.getName() + " " + Long.toString(tmp.getPubdate()));
_intent.putExtra("desc", tmp.getDescr());
startActivity(_intent);
if (tmp.getIsRead() == 1)
return;
tmp.setIsRead(1);
//working wrong!
ContentValues cv = getContValues(tmp);
loader.update(dbHelper.DATABASE_NAME, cv, dbHelper.UID + "=" + cv.getAsInteger("_id"), null);
// db.UpdateItem(db.getWritableDatabase(), tmp);
// getLoaderManager().initLoader(0, null, mCallbacks);
}
});
final ImageView fav_img = (ImageView) v.findViewById(R.id.image);
if (fav_img != null)
{
if (tmp.getIsFav() != 0) {
fav_img.setImageResource(R.drawable.fav);
}
else fav_img.setImageResource(R.drawable.unfav);
}
fav_img.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
if (tmp.getIsFav() == 1)
{
tmp.setIsFav(0);
fav_img.setImageResource(R.drawable.unfav);
}
else
{
tmp.setIsFav(1);
fav_img.setImageResource(R.drawable.fav);
}
Log.d("fav:", Integer.toString(tmp.getIsFav()) + " id: " + Integer.toString(tmp.getGuid()));
// db.UpdateItem(db.getWritableDatabase(), tmp);
// getLoaderManager().restartLoader(0, null, mCallbacks);
//Working wrong!
ContentValues cv = getContValues(tmp);
loader.update(dbHelper.DATABASE_NAME, cv, dbHelper.UID + "=" + cv.getAsInteger("_id"), null);
}
});
LinearLayout lay = (LinearLayout) v.findViewById(R.id.item_layout);
if (tmp.getIsRead() != 0)
lay.setBackgroundColor(Color.GRAY);
else lay.setBackgroundColor(Color.YELLOW);
}
private ContentValues getContValues(News tmp)
{
ContentValues cv = new ContentValues();
cv.put("_id", tmp.getGuid());
cv.put("title", tmp.getName());
cv.put("pubdate", tmp.getPubdate());
cv.put("description", tmp.getDescr());
cv.put("isRead", tmp.getIsRead());
cv.put("isFav", tmp.getIsFav());
return cv;
}
#Override
public View newView(Context context, Cursor cursor, ViewGroup parent) {
View v = mLayoutInflater.inflate(R.layout.list_item, parent, false);
return v;
}
private String convertLongToDate(long value)
{
Locale l = new Locale("ru");
//if (l.getCountry())
Date d = new Date(value);
SimpleDateFormat df = new SimpleDateFormat("d M", l);
return new String(df.format(d));
}
}
Just do this adjustments:
final ImageView fav_img = (ImageView) v.findViewById(R.id.image);
Boolean is_favourite = false;
if (fav_img != null)
{
if (tmp.getIsFav() != 0) {
fav_img.setImageResource(R.drawable.fav);
}
else fav_img.setImageResource(R.drawable.unfav);
}
fav_img.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
if (is_favourite) // if your row is already favourite
{
is_favourite=false;
fav_img.setImageResource(R.drawable.unfav);
}
else
{
is_favourite= true;
fav_img.setImageResource(R.drawable.fav);
}
//Log.d("fav:", Integer.toString(tmp.getIsFav()) + " id: " + Integer.toString(tmp.getGuid()));
// db.UpdateItem(db.getWritableDatabase(), tmp);
// getLoaderManager().restartLoader(0, null, mCallbacks);
//Working wrong!
ContentValues cv = getContValues(tmp);
loader.update(dbHelper.DATABASE_NAME, cv, dbHelper.UID + "=" + cv.getAsInteger("_id"), null);
}
});