Develop Reference

edit text in list view empty or not

In my list view ,I have Edittext and some textviews. when I am trying to iterate over listview to get edittext values, I got some problems.I want to perform actions only if my edittext in the listview is not empty. otherwise i want to continue the iteration.I need only non empty values from the edittexts when iterate through listview. my listview name is "list" here.
my code is
if (list != null) {
for (int i = 0; i < list.getChildCount(); i++) {
ed2 = (EditText) list.getChildAt(i).findViewById(R.id.pcs);
if (ed2.getText().toString().trim().length() != 0) {
TextView im_codetext = (TextView) vie.findViewById(R.id.code);
imcode = im_codetext.getText().toString();
try {
DatabaseHelper dbHelper = new DatabaseHelper(this.getApplicationContext());
newDB = dbHelper.getWritableDatabase();
Cursor cr = newDB.rawQuery("select distinct im_srp_pc, im_subgroup_code from itemmaster where im_code =" + imcode, null);
while (cr.moveToNext()) {
srppc = cr.getString(cr.getColumnIndex("im_srp_pc"));
String subcode = cr.getString(cr.getColumnIndex("im_subgroup_code"));
databas.put("subgp", subcode);
}
srps = Float.valueOf(srpval);
qtys = Integer.valueOf(ed2.getText().toString());
} catch (NumberFormatException e) {
srps = 0;
}
float amnts = srps * qtys;
sumnet = sumnet + amnts;
else{
Log.v(" empty", " empty");
}
}
}
}
My adapter class is
public class MyListAdapter extends BaseAdapter{
#Override
public int getCount() {
// TODO Auto-generated method stub
if(datas != null && datas.size() != 0){
return datas.size();
}
return 0;
}
#Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return datas.get(position);
}
#Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return position;
}
#Override
public View getView(final int position, View convertView, ViewGroup parent) {
//ViewHolder holder = null;
final ViewHolder holder;
if (convertView == null) {
holder = new ViewHolder();
LayoutInflater inflater = Orders.this.getLayoutInflater();
convertView = inflater.inflate(R.layout.order_simple_row, null);
holder.textView1 = (TextView) convertView.findViewById(R.id.name);
holder.textView2 = (TextView) convertView.findViewById(R.id.srp);
holder.textview3 = (TextView) convertView.findViewById(R.id.code);
holder.editText2 = (EditText) convertView.findViewById(R.id.pcs);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
holder.ref = position;
String [] names = new String[550];
String [] codes = new String[550];
String [] prize = new String[550];
DatabaseHelper dbHelper = new DatabaseHelper(Orders.this.getApplicationContext());
newDB = dbHelper.getWritableDatabase();
Cursor c = newDB.rawQuery("select distinct im_code ,im_desc ,im_srp "
+ " from itemmaster", null);
c.moveToFirst();
while (c.moveToNext()){
Log.v("item detailss", c.toString());
String cod = c.getString(c.getColumnIndex("im_code"));
codes[c.getPosition()] =cod;
String desc1 = c.getString(c.getColumnIndex("im_desc"));
names[c.getPosition()] = desc1;
String price = c.getString(c.getColumnIndex("im_srp"));
prize[c.getPosition()] = price;
}
holder.textView1.setText(names[position+1]);
holder.textview3.setText(codes[position+1]);
holder.textView2.setText(prize[position+1]);
holder.editText2.setText(arrTemp[position]);
holder.editText2.addTextChangedListener(new TextWatcher() {
#Override
public void onTextChanged(CharSequence arg0, int arg1, int arg2, int arg3) {
// TODO Auto-generated method stub
}
#Override
public void beforeTextChanged(CharSequence arg0, int arg1, int arg2,
int arg3) {
// TODO Auto-generated method stub
// arrTemp[holder.ref] = arg0.toString();
}
#Override
public void afterTextChanged(Editable arg0) {
// TODO Auto-generated method stub
arrTemp[holder.ref] = arg0.toString();
}
});
return convertView;
}
private class ViewHolder {
public Object list;
TextView textView1,textView2,textview3;
EditText editText1,editText2;
int ref;
}
}
please help.thanks in advance.

I have a Solution.
Declare a HashMap in your custom adapter class.
public class CustomAdapter extends BaseAdapter{
public HashMap<Integer,String> textMap = new HashMap<Integer,String>();
....
In getView() Method get text from HasMap and set in EditText.
#Override
public View getView(final int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
final Holder holder=new Holder();
View rowView;
rowView = inflater.inflate(R.layout.list_item, null);
holder.editText = (EditText)rowView.findViewById(R.id.editText);
holder.editText.setText(textMap.get(position));
....
And in TextChangeListner add text in HashMap by position.
holder.editText.addTextChangedListener(new TextWatcher() {
#Override
public void onTextChanged(CharSequence arg0, int arg1, int arg2, int arg3) {
// TODO Auto-generated method stub
}
#Override
public void beforeTextChanged(CharSequence arg0, int arg1, int arg2,
int arg3) {
// TODO Auto-generated method stub
// arrTemp[holder.ref] = arg0.toString();
}
#Override
public void afterTextChanged(Editable arg0) {
// TODO Auto-generated method stub
textMap.put(position,holder.editText.getText().toString());
}
});
Now in your Activity you can get HashMap of adapter and get its value by position. and if there is no text in particuller position ,means edttext is empty.
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
button = (Button)findViewById(R.id.button);
listView = (ListView)findViewById(R.id.listView);
final CustomAdapter customAdapter = new CustomAdapter(this,names);
listView.setAdapter(customAdapter);
button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
for(int i=0;i<names.length;i++){
Toast.makeText(MainActivity.this, customAdapter.textMap.get(i), Toast.LENGTH_SHORT).show();
}
}
});

Could not set value to the list view using holder

when I am trying to set values to the list view using custom adapter it didn't display the data from hash map. values that I want to display in the list view is getting from the database.and my list view contains text views and edit texts.
my code is
private void SelectItems() {
// TODO Auto-generated method stub
try {
datas = new ArrayList<Map<String, String>>();
DatabaseHelper dbHelper = new DatabaseHelper(this.getApplicationContext());
newDB = dbHelper.getWritableDatabase();
Cursor c = newDB.rawQuery("select distinct im_code ,im_desc ,im_srp "
+ " from itemmaster", null);
Log.v("item detailss", c.toString());
while (c.moveToNext()){
HashMap<String, String> datanums = new HashMap<String, String>();
String im_code = c.getString(c.getColumnIndex("im_code"));
String desc = c.getString(c.getColumnIndex("im_desc"));
datanums.put("codec", im_code);
datanums.put("namec", desc);
String price = c.getString(c.getColumnIndex("im_srp"));
datanums.put("imsrpc", price);
}
} catch (SQLiteException se ) {
Log.e(getClass().getSimpleName(), "Could not create or Open the database");
}
}
private void ViewItems() {
// TODO Auto-generated method stub
list.setAdapter(null);
arrTemp = new String[datas.size()];
datas.add(datanums);
MyListAdapter myListAdapter = new MyListAdapter();
list.setAdapter(myListAdapter);
Log.v("list itemm",datas.toString());
}
private class MyListAdapter extends BaseAdapter{
#Override
public int getCount() {
// TODO Auto-generated method stub
if(datas != null && datas.size() != 0){
return datas.size();
}
return 0;
}
#Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return datas.get(position);
}
#Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return position;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
//ViewHolder holder = null;
final ViewHolder holder;
if (convertView == null) {
holder = new ViewHolder();
LayoutInflater inflater = Orders.this.getLayoutInflater();
convertView = inflater.inflate(R.layout.order_simple_row, null);
holder.textView1 = (TextView) convertView.findViewById(R.id.name);
holder.textView2 = (TextView) convertView.findViewById(R.id.srp);
holder.textview3 = (TextView) convertView.findViewById(R.id.code);
holder.editText1 = (EditText) convertView.findViewById(R.id.cases);
holder.editText2 = (EditText) convertView.findViewById(R.id.pcs);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
holder.ref = position;
holder.textView1.setText(datanums.get("namec"));
holder.textView2.setText(datanums.get("imsrpc"));
holder.textview3.setText(datanums.get("codec"));
holder.editText1.setText(arrTemp[position]);
holder.editText1.addTextChangedListener(new TextWatcher() {
#Override
public void onTextChanged(CharSequence arg0, int arg1, int arg2, int arg3) {
// TODO Auto-generated method stub
}
#Override
public void beforeTextChanged(CharSequence arg0, int arg1, int arg2,
int arg3) {
// TODO Auto-generated method stub
}
#Override
public void afterTextChanged(Editable arg0) {
// TODO Auto-generated method stub
arrTemp[holder.ref] = arg0.toString();
}
});
return convertView;
}
private class ViewHolder {
TextView textView1,textView2,textview3;
EditText editText1,editText2;
int ref;
}
}
in this viewitems(), and selectitems(), are methods called from oncreate to retrieve and display value in the list view. I couldn't sort out the exact problem.but the edit texts are showing properly in the output.please help.

Add below line at start of the getView method
HashMap<String, String> datanums=datas.get(possition);

public List<Map<String, String>> SelectItems() {
// TODO Auto-generated method stub
try {
datas = new ArrayList<Map<String, String>>();
DatabaseHelper dbHelper = new DatabaseHelper(this.getApplicationContext());
newDB = dbHelper.getWritableDatabase();
Cursor c = newDB.rawQuery("select distinct im_code ,im_desc ,im_srp "
+ " from itemmaster", null);
Log.v("item detailss", c.toString());
while (c.moveToNext()){
HashMap<String, String> datanums = new HashMap<String, String>();
String im_code = c.getString(c.getColumnIndex("im_code"));
String desc = c.getString(c.getColumnIndex("im_desc"));
datanums.put("codec", im_code);
datanums.put("namec", desc);
String price = c.getString(c.getColumnIndex("im_srp"));
datanums.put("imsrpc", price);
}
} catch (SQLiteException se ) {
Log.e(getClass().getSimpleName(), "Could not create or Open the database");
}
return datas;
}
/* In your Activity or adapter class call this method(this will return the list) and check the condition if( arraylist!=null && arraylist.size()>0) */

Use this code to set your text view. Hope this works.
holder.textView1.setText(datas.get(position).get("namec"));
holder.textview3.setText(datas.get(position).get("codec"));
holder.textview3.setText(datas.get(position).get("srpc"));

How to get the value of clicked list item

I just want to get the value of clicked list item,
i.e if list contains apple,ball,cat, then clicked on apple then it gives value as apple, ,In the below code I am using inner class base adapter to display the data.
public class RecordsActivity extends Activity implements
OnItemClickListener
{
ListView listProduct;
ListAdapter adapter;
TextView UserName,Date;
ArrayList<String> billDate = new ArrayList<String>();
ArrayList<String> billNo = new ArrayList<String>();
ArrayList<String >partyName=new ArrayList<String>();
ArrayList<String> billAmount = new ArrayList<String>();
ArrayList<String >receipt=new ArrayList<String>();
ArrayList<String >balance=new ArrayList<String>();
ArrayList<String> week = new ArrayList<String>();
ArrayList<String> amount = new ArrayList<String>();
String get_name,get_date,Name;
String GetAmnt;
Dialog dialog;
AlertDialog alertDialog;
#Override
protected void onCreate(Bundle savedInstanceState) {
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_records);
UserName=(TextView) findViewById(R.id.txt_disuser);
Intent usr=getIntent();
get_name=usr.getStringExtra("user");
UserName.setText(get_name);
Date=(TextView) findViewById(R.id.txt_disdate);
Intent dt=getIntent();
get_date=dt.getStringExtra("date");
Date.setText(get_date);
Intent id =getIntent();
Name=id.getStringExtra("name");
listProduct=(ListView) findViewById(R.id.ListViewFilledRecrd);
listProduct.setAdapter(adapter);
/*listProduct.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
long arg3)
{
listProduct.setClickable(true);
String data = (String)listProduct.getItemAtPosition(arg2);
Toast.makeText(getApplicationContext(),data,
Toast.LENGTH_SHORT).show();
}
});*/
}
protected void onResume()
{
getAllProduct();
super.onResume();
}
public void getAllProduct(){
SQLiteDatabase db = this.getDB();
Cursor c;
//c=db.rawQuery("SELECT * FROM RECORDS", null);
c=db.rawQuery("SELECT * FROM RECORDS WHERE PARTY_NAME = '" + Name +
"' ", null);
String
BILL_DATE,BILL_NO,PARTY_NAME,BILL_AMOUNT,RECEIPT,BALANCE,WEEK,AMOUNT;
if(c.moveToFirst())
{
do
{
BILL_DATE = c.getString(1);
BILL_NO=c.getString(2);
PARTY_NAME=c.getString(3);
BILL_AMOUNT=c.getString(4);
RECEIPT=c.getString(5);
BALANCE=c.getString(6);
WEEK=c.getString(7);
AMOUNT=c.getString(8);
billDate.add(BILL_DATE);
billNo.add(BILL_NO);
partyName.add(PARTY_NAME);
billAmount.add(BILL_AMOUNT);
receipt.add("RECEIPT");
balance.add(BALANCE);
week.add(WEEK);
amount.add(AMOUNT);
} while (c.moveToNext());
}
DisplyRecords dsptProd=new
DisplyRecords(RecordsActivity.this,billDate,billNo,partyName,
billAmount,receipt,balance,week,amount);
listProduct.setAdapter(dsptProd);
listProduct.setOnItemClickListener(this);
c.close();
db.close();
}
private SQLiteDatabase getDB()
{
String DB_NAME = "odsr.db";
return openOrCreateDatabase(DB_NAME, SQLiteDatabase.OPEN_READWRITE,
null);
}
#Override
public void onItemClick(AdapterView<?> parent, View view, int position,
long id) {
// TODO Auto-generated method stub
}
}
class DisplyRecords extends BaseAdapter
{
Context c;
ArrayList<String > BILLDATE;
ArrayList<String>BILLNO;
ArrayList<String> PARTYNAME;
ArrayList<String>BILLAMOUNT;
ArrayList<String>RECEIPT;
ArrayList<String> BALANCE;
ArrayList<String>WEEK;
ArrayList<String>AMOUNT;
public DisplyRecords(RecordsActivity recordsactivity,ArrayList<String>
billDate, ArrayList<String> billNo, ArrayList<String>
partyName,ArrayList<String> billAmount, ArrayList<String> receipt,
ArrayList<String> balance, ArrayList<String> week,ArrayList<String> amount)
{
this.c=recordsactivity;
this.BILLDATE=billDate;
this.BILLNO=billNo;
this.PARTYNAME=partyName;
this.BILLAMOUNT=billAmount;
this.RECEIPT=receipt;
this.BALANCE=balance;
this.WEEK=week;
this.AMOUNT=amount;
//TODO Auto-generated constructor stub
}
#Override
public int getCount() {
// TODO Auto-generated method stub
return BILLDATE.size();
}
#Override
public Object getItem(int arg0) {
// TODO Auto-generated method stub
return null;
}
#Override
public long getItemId(int arg0) {
// TODO Auto-generated method stub
return 0;
}
#Override
public View getView(final int pos, View row, ViewGroup parent)
{
View child=row;
LayoutInflater layoutinflater;
if(child==null)
{
layoutinflater=(LayoutInflater)
c.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
child = layoutinflater.inflate(R.layout.list_product,null);
}
TextView txt_billdate=(TextView) child.findViewById(R.id.txt_bill_date);
TextView txt_billno=(TextView) child.findViewById(R.id.txt_bill_no);
TextView txt_partyname=(TextView)
child.findViewById(R.id.txt_party_name);
TextView txt_billamt=(TextView)
child.findViewById(R.id.txt_bill_amount);
TextView txt_receipt=(TextView) child.findViewById(R.id.txt_receipt);
TextView txt_balance=(TextView) child.findViewById(R.id.txt_balance);
TextView txt_wk=(TextView) child.findViewById(R.id.txt_week);
TextView txt_amount=(TextView) child.findViewById(R.id.txt_amount);
txt_billdate.setText(BILLDATE.get(pos));
txt_billno.setText(BILLNO.get(pos));
txt_partyname.setText(PARTYNAME.get(pos));
txt_billamt.setText(BILLAMOUNT.get(pos));
txt_receipt.setText(RECEIPT.get(pos));
txt_balance.setText(BALANCE.get(pos));
txt_wk.setText(WEEK.get(pos));
txt_amount.setText(AMOUNT.get(pos));
// TODO Auto-generated method stub
return child;
}
}

A few assumptions here, your actual fields do not need to be ArrayList's since each query returns a single row item from the db, i create a master object with Strings to represent the data...
So here is how i would do it, you need to re structure your data
First i would change your data to a :
public class ParentObject {
public String BILLDATE ;
public String BILLNO ;
public String PARTYNAME ;
public String BILLAMOUNT ;
public String RECEIPT ;
public String BALANCE ;
public String WEEK ;
public String AMOUNT ;
}
UPDATE
then i would change my Activity to:
public class RecordsActivity extends Activity implements OnItemClickListener{
ListView listProduct;
ListAdapter adapter;
TextView UserName,Date;
// your new parent object ArrayList, much cleaner
List<ParentObject> parentObjects;
String get_name,get_date,Name;
String GetAmnt;
Dialog dialog;
AlertDialog alertDialog;
#Override
protected void onCreate(Bundle savedInstanceState) {
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_records);
UserName=(TextView) findViewById(R.id.txt_disuser);
Intent usr=getIntent();
get_name=usr.getStringExtra("user");
UserName.setText(get_name);
Date=(TextView) findViewById(R.id.txt_disdate);
Intent dt=getIntent();
get_date=dt.getStringExtra("date");
Date.setText(get_date);
Intent id =getIntent();
Name=id.getStringExtra("name");
listProduct=(ListView) findViewById(R.id.ListViewFilledRecrd);
listProduct.setAdapter(adapter);
listProduct.setOnItemClickListener(this);
}
protected void onResume(){
getAllProduct();
super.onResume();
}
public void getAllProduct(){
SQLiteDatabase db = this.getDB();
Cursor c;
//c=db.rawQuery("SELECT * FROM RECORDS", null);
c=db.rawQuery("SELECT * FROM RECORDS WHERE PARTY_NAME = '" + Name + "' ", null);
String BILL_DATE,BILL_NO,PARTY_NAME,BILL_AMOUNT,RECEIPT,BALANCE,WEEK,AMOUNT;
if(c.moveToFirst()){
// initialize the parent arrayList
parentObjects = new ArrayList<ParentObject>();
do{
// initialize a single object
ParentObject parentObject = new ParentObject();
// fill in its data
parentObject.BILL_DATE = c.getString(1);
parentObject.BILL_NO=c.getString(2);
parentObject.PARTY_NAME=c.getString(3);
parentObject.BILL_AMOUNT=c.getString(4);
parentObject.RECEIPT=c.getString(5);
parentObject.BALANCE=c.getString(6);
parentObject.WEEK=c.getString(7);
parentObject.AMOUNT=c.getString(8);
// add it to your list
parentObjects.add(parentObject);
} while (c.moveToNext());
}
// pass the List<ParentObject> into your adapter
DisplyRecords dsptProd= new DisplyRecords(RecordsActivity.this, (ArrayList<ParentObject>)parentObjects);
listProduct.setAdapter(dsptProd);
listProduct.setOnItemClickListener(this);
c.close();
db.close();
}
private SQLiteDatabase getDB(){
String DB_NAME = "odsr.db";
return openOrCreateDatabase(DB_NAME, SQLiteDatabase.OPEN_READWRITE,
null);
}
#Override
public void onItemClick(AdapterView<?> parent, View view, int position,
long id) {
// TODO Auto-generated method stub
// access to all your data through the parentObject
ParentObject data = (ParentObject) listProduct.getItemAtPosition(position);
// access all fields for this parent
Toast.makeText(RecordsActivity.this, "data: "+ data.BILL_DATE, + " ," + data.BILL_NO, " , etc", Toast.LENGTH_LONG).show();
}
}
and then update your Adapter to handle the List
class DisplyRecords extends BaseAdapter {
Context c;
List<ParentObject> parentObjects;
public DisplyRecords(Context context, ArrayList<ParentObject> parentObjects){
this.c=context;
this.parentObjects = parentObjects;
}
#Override
public int getCount() {
// TODO Auto-generated method stub
return parentObjects.size();
}
#Override
public Object getItem(int position) {
return parentObjects.get(position); // always return this parent
}
#Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return position;
}
#Override
public View getView(final int pos, View row, ViewGroup parent){
// You should implement the ViewHolder pattern, this is not doing that...
View child=row;
LayoutInflater layoutinflater;
if(child==null){
layoutinflater=(LayoutInflater) c.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
child = layoutinflater.inflate(R.layout.list_product,null);
}
TextView txt_billdate=(TextView) child.findViewById(R.id.txt_bill_date);
TextView txt_billno=(TextView) child.findViewById(R.id.txt_bill_no);
TextView txt_partyname=(TextView) child.findViewById(R.id.txt_party_name);
TextView txt_billamt=(TextView) child.findViewById(R.id.txt_bill_amount);
TextView txt_receipt=(TextView) child.findViewById(R.id.txt_receipt);
TextView txt_balance=(TextView) child.findViewById(R.id.txt_balance);
TextView txt_wk=(TextView) child.findViewById(R.id.txt_week);
TextView txt_amount=(TextView) child.findViewById(R.id.txt_amount);
ParentObject parentObject = parentObjects.get(pos);
txt_billdate.setText(parentObject.BILLDATE);
txt_billno.setText(parentObject.BILLNO.);
txt_partyname.setText(parentObject.PARTYNAME);
txt_billamt.setText(parentObject.BILLAMOUNT);
txt_receipt.setText(parentObject.RECEIPT);
txt_balance.setText(parentObject.BALANCE);
txt_wk.setText(parentObject.WEEK);
txt_amount.setText(parentObject.AMOUNT);
// TODO Auto-generated method stub
return child;
}
}

ListView not showing right item after filtering

Its been a week since I'm stuck with this problem.
I developed an application with a listView and editText to make a search. When I make a search the new list is showed very well but when I click on the item it redirect me to the item of the inicial list.
I don't know what to do please help me. These are my codes.
-For the ReaderListAdapter :
public class ReaderListAdapter extends BaseAdapter {
ArrayList<Reader> listReader = new ArrayList<Reader>();
ArrayList<Reader> arrayList;
LayoutInflater layoutInflater;
Context context;
int lastPosition = -1;
// constructeur
public ReaderListAdapter(Context context, ArrayList<Reader> listReader) {
this.listReader = listReader;
this.context = context;
arrayList = new ArrayList<Reader> ();;
layoutInflater = LayoutInflater.from(this.context);
arrayList.addAll(listReader);
}
#Override
public int getCount() {
// TODO Auto-generated method stub
return listReader.size();
}
#Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return listReader.get(position);
}
#Override
public long getItemId(int arg0) {
// TODO Auto-generated method stub
return arg0;
}
static class ViewHolder {
TextView nomView;
TextView priceView;
ImageView pictureView;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if (convertView == null) {
convertView = layoutInflater.inflate(R.layout.reader_row, null);
holder = new ViewHolder();
// initialisation des vues
holder.nomView = (TextView) convertView.findViewById(R.id.name);
holder.priceView = (TextView) convertView.findViewById(R.id.price);
holder.pictureView = (ImageView) convertView.findViewById(R.id.picture);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
// affchier les données convenablement dans leurs positions
holder.nomView.setText(listReader.get(position).getName());
holder.priceView.setText(String.valueOf(listReader.get(position).getPrice()));
holder.pictureView.setBackgroundDrawable(listReader.get(position).getPicture());
// changer R.anim.ton_effet
Animation animation = AnimationUtils.loadAnimation(context,(position > lastPosition)
? R.anim.up_from_bottom: R.anim.up_from_bottom);
convertView.startAnimation(animation);
position=lastPosition;
return convertView;
}
// Filter Class
public void filter(String charText) {
charText = charText.toLowerCase(Locale.getDefault());
listReader.clear();
if(charText.length()==0){
listReader.addAll(arrayList);
}
else{
for (Reader c : arrayList) {
if (c.getName().toLowerCase(Locale.getDefault())
.contains(charText)) {
listReader.add(c);
}
}
}
notifyDataSetChanged();
}
}
-For the MainActivity:
public class MainActivity extends Activity {
String[] listNames = { "kooora","yahoo", "hespress"};
int[] listPrices = { 1, 2, 3 };
ArrayList<Reader> listReader = new ArrayList<Reader>();;
ArrayList<Reader> listReaderNew;
ListView lv;
EditText search;
ReaderListAdapter adapter;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
lv = (ListView) findViewById(R.id.listReader);
search = (EditText) findViewById(R.id.search);
Drawable[] listPictures = {getResources().getDrawable(R.drawable.a1),getResources().getDrawable(R.drawable.a2),getResources().getDrawable(R.drawable.a3)};
for (int i = 0; i < listPictures.length; i++) {
listReader.add(new Reader(i + 1, listNames[i], listPictures[i], listPrices[i]));
}
adapter=new ReaderListAdapter(getApplicationContext(), listReader);
lv.setAdapter(adapter);
//lv.setAdapter(new ReaderListAdapter(getApplicationContext(), listReader));
search.addTextChangedListener(new TextWatcher() {
#Override
public void onTextChanged(CharSequence arg0, int arg1, int arg2, int arg3) {
// TODO Auto-generated method stub
}
#Override
public void beforeTextChanged(CharSequence arg0, int arg1, int arg2, int arg3) {
// TODO Auto-generated method stub
}
#Override
public void afterTextChanged(Editable arg0) {
// TODO Auto-generated method stub
String text = search.getText().toString().toLowerCase(Locale.getDefault());
MainActivity.this.adapter.filter(text);
}});
lv.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id)
{
Intent intent=new Intent(MainActivity.this,WebActivity.class);
switch (position) {
case 0:
intent.setData(Uri.parse("http://www.kooora.com")) ;break;
case 1:
intent.setData(Uri.parse("http://www.yahoo.com")) ;break;
case 2:
intent.setData(Uri.parse("http://www.hespress.com")) ;break; }if (intent != null) {
startActivity(intent);
}}});}}
Please help me. Thanks in advance!

I think the code in onItemClick is causing this.
The problem:
searchTerm = "yahoo"
You filter yahoo and show the listitem for yahoo. Lets says its position in the list is 0. When the user clicks it, the onItemClick will be called and case 0: will be executed.
The correct logic should be,
Reader reader = parent.getAdapter().getItem(position);
String searchTerm = reader.getName(); // or whichever is the id for that listitem
if(searchTerm.contains("yahoo")) {
intent.setData(Uri.parse("http://www.yahoo.com"))
} // and so on

ListView adapter with HashMap

I have a listview with textview and checkbox. The text values are stored in a HashMap. Data is retrieved from a DB. Map key is the ID and Map value is a Location. When I pass the HashMap to the adapter, it starts printing from position 0 (zero). Because of this I get a null text(with no value) and miss one value(the last one) in the HashMap. Can't I use a HashMap as the data source?
EDIT: Here is the code
public class LocationActivity extends Activity{
myAdapter myA;
Map<Integer,String> locLables;
#Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.locationmain);
ListView listview = (ListView) findViewById(R.id.listView1);
String selectQuery = "SELECT * FROM " + DatabaseHandler.TABLE_LOCATIONLABLES;
SQLiteDatabase db = new DatabaseHandler(this).getReadableDatabase();
Cursor cursor = db.rawQuery(selectQuery, null);
locLables = new HashMap<Integer, String>();
if(cursor != null){
if (cursor.moveToFirst()) {
do {
locLables.put(new Integer(cursor.getString(0)),cursor.getString(1));
System.out.println(cursor.getString(0)+" "+ cursor.getString(1));
} while (cursor.moveToNext());
}
}
cursor.close();db.close();
//System.out.println(locLables);
myA = new myAdapter(this, locLables, listview);
listview.setAdapter(myA);
listview.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
if(arg2 == 0 )
arg2 = arg2+1;
// TODO Auto-generated method stub
Toast.makeText(getApplicationContext(), locLables.get(arg2), Toast.LENGTH_SHORT).show();
}
});
}
Here is the Adapter class
class myAdapter extends BaseAdapter{
ListView listView;
Activity cntx;
Map<Integer,String> locations;
List<Integer> locids = new LinkedList<Integer>();
public myAdapter(Activity context,Map<Integer,String> locLables, ListView lv){
cntx = context;
locations = locLables;
listView = lv;
System.out.println(locations);
}
#Override
public int getCount() {
// TODO Auto-generated method stub
return locations.size();
}
#Override
public Object getItem(int arg0) {
// TODO Auto-generated method stub
return arg0;
}
#Override
public long getItemId(int arg0) {
// TODO Auto-generated method stub
return arg0;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
View row=null;
final int posi = position;
LayoutInflater inflater=cntx.getLayoutInflater();
row=inflater.inflate(R.layout.locationmain_entry, null);
TextView tv = (TextView)row.findViewById(R.id.textView12);
final CheckBox cb = (CheckBox)row.findViewById(R.id.checkBox12);
if(locids.contains(posi))
cb.setChecked(true);
//here I get a null value as the first element and misses the last value..
tv.setText(locations.get(position));
cb.setOnCheckedChangeListener(new OnCheckedChangeListener() {
#Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
// TODO Auto-generated method stub
if(isChecked){
System.out.println("Chedked" + posi+ locations.get(posi));
//cb.setChecked(true);
if(!locids.contains(posi))
locids.add(posi);
//System.out.println(locids.get(posi));
}else if(!isChecked){
//cb.setChecked(false);
if(locids.contains(posi))
locids.remove(new Integer(posi));
System.out.println("NOt checked" +posi + locations.get(posi));
}
}
});
return row;
}
It runs for the number of elements in the Map. As it is using a 0 (by position variable) it misses the last value as well.

What you can do is
ArrayList<Hashmap<Integer,String>> myList = new ArrayList<Hashmap<Integer,String>>();
if(cursor != null){
if (cursor.moveToFirst()) {
do {
locLables = new HashMap<Integer, String>();
locLables.put(new Integer(cursor.getString(0)),cursor.getString(1));
myList.add(locLables);
} while (cursor.moveToNext());
}
}
cursor.close();db.close();
myA = new myAdapter(this, myList, listview);
listview.setAdapter(myA);
You will have to change your "myAdapter" Adapter's constructor to hold "ArrayList> myList" instead of "Map locLables"..
This will help... Let me know if the problem still persists..