Develop Reference

Changing value of textview using android spinners

I have a spinner(dynamic) which contains a list of IDs' and each ID has a product value. When I click on a particular ID, the value needs to be changed associated with that ID.
I have a listView which contains a table. The table consists of product names, product price and product information. When I change the ID, the table information(listview) changes but not the product value (this is a textview and not part of listview).
I'm passing the product value using an intent from a different class. How do I make it such that when I change an item in the spinner, the product value gets changed?
/**
* Listener for flight leg selection of spinner
*/
private OnItemSelectedListener onFlightLegSelectedListener = new OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
new ShowSalesReportAsyncTask(flightLegMap.get(flightLegs.get(position)), position).executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
}
#Override
public void onNothingSelected(AdapterView<?> arg0) {
// Do nothing
}
};
This is my onCreate where I am getting the product value.
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_sales_report);
salesReportListView = (ListView) findViewById(R.id.sales_report_listview);
spinnerFlightLegs = (Spinner) findViewById(R.id.flight_legs);
noTransactionsWarning = (TextView) findViewById(R.id.no_transactions_warning);
totalValueNetAmount = (TextView) findViewById(R.id.total_currency_net_value);
String salesRevenue = TOTAL_VALUE;
Bundle extras = getIntent().getExtras();
if (extras != null) {
salesRevenue = extras.getString(TOTAL_VALUE);
}
totalValueNetAmount.setText(salesRevenue);
flightLegMap = getAllFlightLegs();
if (!flightLegMap.isEmpty()) {
setFlightLegSpinner();
btnShare.setEnabled(true);
} else {
btnShare.setEnabled(false);
}
spinnerFlightLegs.setOnItemSelectedListener(onFlightLegSelectedListener);
salesReportListAdapter = new SalesReportListAdapter(this);
salesReportListView.setAdapter(salesReportListAdapter);
This is the Async task that I use to populate the view with data.
private class ShowSalesReportAsyncTask extends AsyncTask> {
private String flightLeg;
private int position;
public ShowSalesReportAsyncTask(String flightLeg, int position) {
this.flightLeg = flightLeg;
this.position = position;
}
#Override
protected List<Purchase> doInBackground(Void... params) {
List<Purchase> rows = new ArrayList<Purchase>();
PurchaseDao purchaseDao = new PurchaseDao(flightLeg, MIUtils.getShardDatabaseIndexMap());
LOG.debug(TAG + "Getting report for : {}", flightLeg);
// double netTotal = SalesUtil.calculateFlightTransactionTotal(purchaseDao, refundDao,());
return purchaseDao.getSuccessfulTransactions();
}
#Override
protected void onPostExecute(List<Purchase> result) {
super.onPostExecute(result);
if (!result.isEmpty()) {
noTransactionsWarning.setVisibility(View.GONE);
} else {
noTransactionsWarning.setVisibility(View.VISIBLE);
}
salesReportListAdapter.setRowsAndFlightDetails(result, flightLegMap.get(flightLegs.get(position)),
spinnerFlightLegs.getSelectedItem().toString());
totalValueNetAmount.setText((int) netTotal);
}
}
The item that needs to be changed is "EUR". SPINNER TABLE IMAGE

Add the code to register the listener in the onStart() method of the activity. This should work.
This should better answer your question - How to keep onItemSelected from firing off on a newly instantiated Spinner?

How can I get the name of a clicked cell in my listview to load into a new activity?

How can I get the name of a specific cell in my listview to load into a new activity ? At present, when I click any of the arrows it loads the last person in my contacts (Yvonne) in the next activity that loads when the arrow is clicked. I want the name in the corresponding cell to load in the next activity. How can I do this?
For example, in the image above, I want Alexi to load into the next Activity. But instead I keep getting Yvonne.
At present my code looks like this:
public class MainActivity extends Activity {
// ArrayList called selectContacts that will contain SelectContact info
ArrayList<SelectContact> selectContacts;
ListView listView;
SearchView search;
SelectContactAdapter adapter;
String name;
String phoneNumber;
String lookupkey;
CharSequence nameofcontact;
// *****18-04-2016***
Cursor cursor;
// ListView mainListView;
// ArrayList hashMapsArrayList;
public String cleartext;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//selectContacts is an empty array list that will hold our SelectContct info
selectContacts = new ArrayList<SelectContact>();
listView = (ListView) findViewById(R.id.contacts_list);
search = (SearchView) findViewById(R.id.searchView);
//*** setOnQueryTextListener ***
search.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
#Override
public boolean onQueryTextSubmit(String query) {
// TODO Auto-generated method stub
return false;
}
#Override
public boolean onQueryTextChange(String newText) {
// TODO Auto-generated method stub
adapter.filter(newText);
return false;
}
});
}
// Load data on background
class LoadContact extends AsyncTask<Void, Void, Void> {
#Override
protected void onPreExecute() {
super.onPreExecute();
}
#Override
protected Void doInBackground(Void... voids) {
// Perhaps running this thread on the UI thread has solved the issue of the app
// crashing? ListView had not been updating properly, I think.
runOnUiThread(new Runnable() {
public void run() {
// we want to delete the old selectContacts from the listview when the Activity loads
// because it may need to be updated and we want the user to see the updated listview,
// like if the user adds new names and numbers to their phone contacts.
selectContacts.clear();
// we have this here to avoid cursor errors
if (cursor != null) {
cursor.moveToFirst();
}
try {
// get a handle on the Content Resolver, so we can query the provider,
cursor = getApplicationContext().getContentResolver()
// the table to query
.query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
// Null. This means that we are not making any conditional query into the contacts table.
// Hence, all data is returned into the cursor.
// Projection - the columns you want to query
null,
// Selection - with this you are extracting records with assigned (by you) conditions and rules
null,
// SelectionArgs - This replaces any question marks (?) in the selection string
// if you have something like String[] args = { "first string", "second#string.com" };
null,
// display in ascending order
ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME + " COLLATE LOCALIZED ASC");
// get the column number of the Contact_ID column, make it an integer.
// I think having it stored as a number makes for faster operations later on.
int Idx = cursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.CONTACT_ID);
// get the column number of the DISPLAY_NAME column
int nameIdx = cursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME);
// get the column number of the NUMBER column
int phoneNumberIdx = cursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER);
// ****
int contactlookupkey = cursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.LOOKUP_KEY);
// ****
cursor.moveToFirst();
// We make a new Hashset to hold all our contact_ids, including duplicates, if they come up
Set<String> ids = new HashSet<>();
do {
System.out.println("=====>in while");
// get a handle on the contactid, which is a string. Loop through all the contact_ids
String contactid = cursor.getString(Idx);
// if our Hashset doesn't already contain the contactid string,
// then add it to the hashset
if (!ids.contains(contactid)) {
ids.add(contactid);
HashMap<String, String> hashMap = new HashMap<String, String>();
// get a handle on the display name, which is a string
name = cursor.getString(nameIdx);
// get a handle on the phone number, which is a string
phoneNumber = cursor.getString(phoneNumberIdx);
// String image = cursor.getString(photoIdIdx);
lookupkey = cursor.getString(contactlookupkey);
System.out.println("Id--->" + contactid + " Name--->" + name);
System.out.println("Id--->" + contactid + " Number--->" + phoneNumber);
System.out.println("Id--->" + contactid + " lookupkey--->" + lookupkey);
SelectContact selectContact = new SelectContact();
selectContact.setName(name);
selectContact.setPhone(phoneNumber);
selectContacts.add(selectContact);
}
} while (cursor.moveToNext());
} catch (Exception e) {
e.printStackTrace();
} finally {
}
}});
return null;
}
#Override
protected void onPostExecute(Void aVoid) {
super.onPostExecute(aVoid);
//into each inflate_listview, put a name and phone number, which are the details making
// our SelectContact, above. And SelectContacts is all these inflate_listviews together
// This is the first property of our SelectContactAdapter, a list
// The next part, MainActivity.this, is our context, which is where we want the list to appear
adapter = new SelectContactAdapter(selectContacts, MainActivity.this);
// adapter.notifyDataSetChanged();
listView.setAdapter(adapter);
// Select item on listclick
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
listView.setFastScrollEnabled(true);
// we need to notify the listview that changes may have been made on
// the background thread, doInBackground, like adding or deleting contacts,
// and these changes need to be reflected visibly in the listview. It works
// in conjunction with selectContacts.clear()
// adapter.notifyDataSetChanged();
}
});
}}
//the is the arrow image, it opens the activity for show and edit
public void DisplayorEditContact(View v) {
System.out.println("works so far");
System.out.println(name);
Intent intent = new Intent(getApplicationContext(), EditorNewContact.class).putExtra("thecontactname",name);
startActivity(intent);
}
#Override
protected void onStop() {
super.onStop();
}
#Override
protected void onResume() {
//I want to clear the searchview text when my app resumes or closes, but I keep getting an error, my app shuts down
// cleartext = findViewById(R.id.searchView).toString();
// cleartext.isEmpty();
// search.setQuery("", false);
super.onResume();
// load the contacts again, refresh them, when the user resumes the activity
LoadContact loadContact = new LoadContact();
loadContact.execute();
// cursor.close();
}
}
The salient part of the code I believe is :
//the is the arrow image, it opens the activity for show and edit
public void DisplayorEditContact(View v) {
System.out.println("works so far");
System.out.println(name);
Intent intent = new Intent(getApplicationContext(), EditorNewContact.class).putExtra("thecontactname",name);
startActivity(intent);
}
And the child activity, into which I want Alexi to load (at present I keep getting Yvonne) looks like this :
public class EditorNewContact extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.edit_contact);
String s= getIntent().getStringExtra("thecontactname");
System.out.println("the name is" + s);
EditText edittext = (EditText) findViewById(R.id.editText);
edittext.setText(s);
I was asked to share my SelectContactAdapter, so here it is :
public class SelectContactAdapter extends BaseAdapter {
//define a list made out of SelectContacts and call it _data
public List<SelectContact> _data;
//define an array list made out of SelectContacts and call it arraylist
private ArrayList<SelectContact> arraylist;
Context _c;
//define a ViewHolder to hold our name and number info, instead of constantly querying
// findviewbyid. Makes the ListView run smoother
ViewHolder v;
// RoundImage roundedImage;
public SelectContactAdapter(List<SelectContact> selectContacts, Context context) {
_data = selectContacts;
_c = context;
this.arraylist = new ArrayList<SelectContact>();
this.arraylist.addAll(_data);
}
#Override
public int getCount() {
return _data.size();
}
#Override
public Object getItem(int i) {
return _data.get(i);
}
#Override
public long getItemId(int i) {
return i;
}
#TargetApi(Build.VERSION_CODES.LOLLIPOP)
#Override
public View getView(int i, View convertView, ViewGroup viewGroup) {
//we're naming our convertView as view
View view = convertView;
//if there is nothing there (if it's null) inflate the layout for each row
if (view == null) {
LayoutInflater li = (LayoutInflater) _c.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
view = li.inflate(R.layout.inflate_listview, null);
// Log.e("Inside", "here--------------------------- In view1");
//or else use the view (what we can see in each row) that is already there
} else {
view = convertView;
// Log.e("Inside", "here--------------------------- In view2");
}
v = new ViewHolder();
// So, for example, title is cast to the name id, in activity main,
// phone is cast to the id called no etc
v.title = (TextView) view.findViewById(R.id.name);
// v.check = (CheckBox) view.findViewById(R.id.check);
v.phone = (TextView) view.findViewById(R.id.no);
v.imageView = (ImageView) view.findViewById(R.id.arrowright);
// for each new cell with title, name, number etc...
//
final SelectContact data = (SelectContact) _data.get(i);
v.title.setText(data.getName());
// v.check.setChecked(data.getCheckedBox());
v.phone.setText(data.getPhone());
view.setTag(data);
return view;
}
// Filter Class
public void filter(String charText) {
charText = charText.toLowerCase(Locale.getDefault());
// _data is our list of contacts
_data.clear();
// If there is nothing in the searchview, if the charText length is 0,
// then show all the contacts
if (charText.length() == 0) {
_data.addAll(arraylist);
// or else....
} else {
for (SelectContact wp : arraylist) {
// If a contact's name matches the input thus far, which is charText,
// then include it in the listview.
if ((wp.getName().toLowerCase(Locale.getDefault())
.contains(charText)) || (wp.getPhone().toLowerCase(Locale.getDefault())
.contains(charText)))
{
_data.add(wp);
}
}
}
notifyDataSetChanged();
}
static class ViewHolder {
// In each cell in the listview show the items you want to have
ImageView imageView;
TextView title, phone;
// CheckBox check;
}
}

It is hard to predict how your code works without seeing the SelectContactAdapter source code. But I can suggest a probably easiest solution, which is using a tag
all you need to do is to set a tag to your arrow image somewhere in your adapter's getView method like this:
youArrowImage.setTag("here_is_a_name_of_a_row");
and then in your DisplayorEditContact(View v) you can access it like this:
String itemName = (String)v.getTag();
here I suppose that v is a reference to clicked arrow image

You could also just monitor the click in your ListView setOnItemClickListener.
// Click listener to bring to profile
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Intent viewProfileIntent = new Intent(getApplicationContext(), UserProfile.class);
viewProfileIntent.putExtra("name", selectContacts.get(position));
Log.i("User Tapped", selectContacts.get(position));
startActivity(viewProfileIntent);
}
});

Please add following line to your SelectContactsAdapter.java
final SelectContact data = (SelectContact) _data.get(i);
v.title.setText(data.getName());
v.phone.setText(data.getPhone());
// Please add this line to your existing code right after above lines
v.imageView.setTag(data.getName());
Modify your method as below
public void DisplayorEditContact(View v) {
System.out.println("works so far");
System.out.println(v.getTag().toString());
Intent intent = new Intent(getApplicationContext(), EditorNewContact.class).putExtra("thecontactname",v.getTag().toString());
startActivity(intent);
}
Hope this helps

Your this method will like this:
public void DisplayorEditContact(View v) {
TextView tvName = (TextView) v.findViewById(R.id.YOUR_TEXT_NAME);
System.out.println(tvName.getText().toString());
}
Hope this will solve your problem :)

You need to use onItemClickListener on your list view.
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
SelectContact contact = (SelectContact)parent.getItemAtPosition(position);
Intent secondActivity = new Intent(MainActivity.this, EditorNewContact.class);
secondActivity.putExtra("Key", contact);
startActivity(secondActivity);
}
});
Also, in your EditorNewContact activity, you will need to resolve this intent in the onCreate method, like:
Intent intent = getIntent();
SelectContact contact = (SelectContact) intent.get("Key");
Also, your SelectContact class can be Serializeable, If that is the can, the the intent will look like.
Intent secondActivity = new Intent(MainActivity.this, EditorNewContact.class);
secondActivity.putSerializeableExtra("Key", contact);
startActivity(secondActivity);
And, to resolve this:
Intent intent = getIntent();
SelectContact contact = (SelectContact) intent.getSerializableExtra("Key");
i hope this helps.

how to show whether an item in the listview is positive or negative inside toast message based on the words initialized in an array of strings?

I have written a program to get tweets from twitter in a listview , which is working perfectly fine ,i have also initialized an array of positive and negative strings with some words based on which i want to show a positive or negative toast message on each tweet click, need some guidance on how to do it .
public class TwitterAsyncTask extends AsyncTask<Object, Void,
ArrayList<TwitterTweet>> {
ListActivity callerActivity;
String[] positive = { "good", "very good", "best", "awesome", "amazing",
"worth", "fantastic", "impeccable",
"great", "brilliant", "impressed", "impressive" };
String[] negative = { "bad", "very bad", "worst", "pathetic", "boring", "not
worth", "not great", "sick",
"terrible" };
ListView lv;
final static String TWITTER_API_KEY = "api_key";
final static String TWITTER_API_SECRET =
"secret_key";
#Override
protected ArrayList<TwitterTweet> doInBackground(Object... params) {
ArrayList<TwitterTweet> twitterTweets = null;
callerActivity = (ListActivity) params[1];
if (params.length > 0) {
TwitterAPI twitterAPI = new TwitterAPI(TWITTER_API_KEY,
TWITTER_API_SECRET);
twitterTweets = twitterAPI.getTwitterTweets(params[0].toString());
if (twitterTweets.contains(positive)) {
Toast.makeText(callerActivity, "The number of positive words are
", duration)
}
}
return twitterTweets;
}
#Override
protected void onPostExecute(final ArrayList<TwitterTweet> twitterTweets) {
ArrayAdapter<TwitterTweet> adapter = new ArrayAdapter<TwitterTweet>
(callerActivity,
android.R.layout.simple_list_item_1, android.R.id.text1,
twitterTweets);
callerActivity.setListAdapter(adapter);
lv = callerActivity.getListView();
}

Resgister a item click listener in your list view:
lv.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Toast.makeText(getBaseContext(), "Clicked", Toast.LENGTH_SHORT).show();
}
});
Using position you can access data related to clicked position.

Use setOnItemClickListener() on your listView and inside onItemClick() method, you can try as below:
Iterator<TwitterTweet> it = twitterTweets.iterator();
while(it.hasNext())
{
TwitterTweet obj = it.next();
// Loop through positive or negative string arrays to check for words
}
or you can use foreach loop as below:
for (TwitterTweet obj : twitterTweets)
{
// Loop through positive or negative string arrays to check for words
}

listView item click event not firing

I am having an issue with using a listview that when I click it nothing is happening. I would like for it when I click the listview item to make a toast so I know it is being clicked. I have been trying/researching for a while and nothing. Would anybody mind taking a look to see if I am missing something I just am overlooking? Many thanks in advance!
Here is my class:
public class MyCar extends Activity {
/**
* Called when the activity is first created.
*/
public ListView mylistView;
String carInfo;
private ArrayAdapter<String> mylistAdapter;
ArrayList<String> arrayListCar = null;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_mycar);
mylistView = (ListView) findViewById(R.id.listView);
arrayListCar = new ArrayList<String>();
//Just had to remove setting this adapter 2 times. Took out line below to fix.
mylistView.setAdapter(mylistAdapter);
mylistView.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position,
long id) {
String item = ((TextView) view).getText().toString();
Toast.makeText(getBaseContext(), item, Toast.LENGTH_LONG).show();
}
});
}
#Override
protected void onStart() {
// TODO Auto-generated method stub
super.onStart();
carInfo = trySomethin();
fillList();
}
public void fillList() {
String make = "";
String model = "";
String[] pieces = carInfo.split("\"");
make = pieces[3];
model = pieces[7];
ArrayList<String> carList = new ArrayList<String>();
carList.add(make + " " + model);
// Create ArrayAdapter using the car list.
mylistAdapter = new ArrayAdapter<String>(MyCar.this, android.R.layout.simple_list_item_single_choice, carList);
mylistView.setAdapter(mylistAdapter);
mylistAdapter.notifyDataSetChanged();
}
}

if you have any elements on listview item change this for them
android:focusable="false"
and if you are changing any elements visibility on runtime you have to handle focus programatically each time you change its visibility.

Try this
listView.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
// ListView Clicked item index
int itemPosition = position;
// ListView Clicked item value
String itemValue = (String) listView.getItemAtPosition(position);
// Show Alert
Toast.makeText(getApplicationContext(),
"Position :"+itemPosition+" ListItem : " +itemValue , Toast.LENGTH_LONG)
.show();
}
});

sqlite database and listview

Okay, I have searched threw here and did not find my answer at all. What my android app is suppose to be doing is get a list from my php & mysql server, then store it on the database on the phone. This all works, and I can even create a listview with the information from my sqlite db. Where I am stuck as a new coder is trying to figure out how to display the information when they click on the listview item that will take them to another page that will show all the details for that listview.
So in short what I want is have my listview, items 1,item 2, item 3 for example, then when they click item 2, it gets the information for item 2 and displays it. Can someone point me in the correct direction, i know i have to use setOnClickListener, but just unsure how to make it look for that certain item.
public class Events extends Activity
{
// Identifies a particular Loader being used in this component
String event_name, event_time, event_price, event_loc;
static JSONObject object =null;
DBAdapter myDb;
#Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.events);
openDB();
new PrefetchData().execute();
// used to refresh my page.
Button button = (Button) findViewById(R.id.refresh);
button.setOnClickListener(new OnClickListener()
{
public void onClick(View v)
{
openDB();
new PrefetchData().execute();
}
});
}
#Override
protected void onDestroy()
{
super.onDestroy();
closeDB();
}
private void openDB()
{
myDb = new DBAdapter(this);
myDb.open();
}
private void closeDB()
{
myDb.close();
}
private class PrefetchData extends AsyncTask<Void, Void, Void>
{
#Override
protected void onPreExecute()
{
super.onPreExecute();
}
#Override
protected Void doInBackground(Void... arg0)
{
myDb.deleteAll();
JsonParser jsonParser = new JsonParser();
String json = jsonParser.getJSONFromUrl("http://www.website.com/test.json");
Log.e("JSON Response: ", "> " + json);
if (json != null)
{
try
{
JSONObject parent = new JSONObject(json);
JSONArray eventDetails = parent.getJSONArray("event");
for(int i=0; i < eventDetails.length(); i++)
{
object = eventDetails.getJSONObject(i);
event_name = object.getString("event_name");
event_time = object.getString("event_time");
event_price = object.getString("event_price");
event_loc = object.getString("event_loc");
//event_pic = object.getString("event_pic");
myDb.insertRow(event_name,event_time,event_price,event_loc);
Log.e("JSON", "> " + event_name + event_time + event_price + event_loc );
}
} catch (JSONException e)
{
// TODO Auto-generated catch block
Log.e("Json Error", "Error: " + e.toString());
e.printStackTrace();
}
}
return null;
}
#Override
protected void onPostExecute(Void result)
{
super.onPostExecute(result);
populateListViewFromDB();
myDb.close();
// After completing http call
// will close this activity and lauch main activity
//Intent i = new Intent(MainActivity.this, Events.class);
//i.putExtra("event_name", event_name);
//i.putExtra("event_time", event_time);
//i.putExtra("event_price", event_price);
//startActivity(i);
// close this activity
//finish();
}
}
#SuppressWarnings("deprecation")
private void populateListViewFromDB()
{
Cursor cursor = myDb.getAllRows();
// Allow activity to manage lifetime of the cursor.
// DEPRECATED! Runs on the UI thread, OK for small/short queries.
startManagingCursor(cursor);
// Setup mapping from cursor to view fields:
String[] fromFieldNames = new String[]
{DBAdapter.KEY_NAME, DBAdapter.KEY_TIME, DBAdapter.KEY_PRICE, DBAdapter.KEY_LOC};
int[] toViewIDs = new int[]
{R.id.item_name};//, R.id.item_time};//, R.id.item_price, R.id.item_loc};
// Create adapter to may columns of the DB onto elemesnt in the UI.
SimpleCursorAdapter myCursorAdapter =
new SimpleCursorAdapter(
this, // Context
R.layout.item_layout, // Row layout template
cursor, // cursor (set of DB records to map)
fromFieldNames, // DB Column names
toViewIDs // View IDs to put information in
);
// Set the adapter for the list view
ListView myList = (ListView) findViewById(R.id.listViewfordb);
myList.setAdapter(myCursorAdapter);
}
}

Don't use the setOnClickListener.
Be sure to use a CursorAdapter and to specify an ID column inside your db.
when you set the protected void onListItemClick(ListView l, View v, int position, long id) automatically the id is the ID inside the db. this way you can pass it through an intent and use the id to get back the data from the db.
Hope it's clear enough. Sorry i wrote quite in a rush
from your code simply add
myList.setOnItemClickListener(
new OnItemClickListener()
{
#Override
public void onItemClick(AdapterView<?> arg0, View view,
int position, long id) {
//here the id value is what you need to take data from the db filtering by id
}
}
);

you should set listeners to your ListView something like this
private OnItemClickListener onListItemClickListener = new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> adapter, View view, int position, long id) {
// TODO YOUR CODE
}
};
private OnItemLongClickListener onItemLongClickListener = new OnItemLongClickListener() {
#Override
public boolean onItemLongClick(AdapterView<?> adapter, View view, int position, long id) {
YOUR_CODE
}
};
those are two types, longClicj and just click, you can use it both or one, its depends on your needs
also on your onCreate method you should set the listeners to your listView
listView.setOnItemClickListener(onListItemClickListener);
listView.setOnItemLongClickListener(onItemLongClickListener);