Develop Reference

Get position of the item LongClicked in a ListView

I have a ListView displaying custom views (3 TextViews per item); I have just implemented a context menu like such:
// in onCreateView
ListView list = (ListView) view.findViewById(R.id.list);
registerForContextMenu(list);
and
#Override
public void onCreateContextMenu(ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
super.onCreateContextMenu(menu, v, menuInfo);
if (v.getId() == R.id.list) {
MenuInflater inflater = getActivity().getMenuInflater();
inflater.inflate(R.menu.todo_context_menu, menu);
}
}
#Override
public boolean onContextItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.edit:
// your first action code
return true;
case R.id.delete:
// your second action code
return true;
default:
return super.onContextItemSelected(item);
}
}
I wish to know which item has been long clicked (its position in the ListView would be ideal) in order to edit or delete the right one.
How may that be achieved?

#Override
public boolean onContextItemSelected(MenuItem item) {
AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo) item.getMenuInfo();
int index = info.position;
switch (item.getItemId()) {
case R.id.edit:
// your first action code
return true;
case R.id.delete:
// your second action code
return true;
default:
return super.onContextItemSelected(item);
}
}

Deleting item from listview using floating context menu

Already had the ability to delete a listview item using an onItemLongClick method but I'd rather use a floating context menu to do this.
Below is the code I currently have for the floating context menu. I followed the documentation which helped me set it up and then tried to search for a similar example to what I'm doing but couldn't find anything appropriate.
#Override
public void onCreateContextMenu(ContextMenu menu, View v,
ContextMenu.ContextMenuInfo menuInfo) {
super.onCreateContextMenu(menu, v, menuInfo);
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.payments_context, menu);
}
#Override
public boolean onContextItemSelected(MenuItem item) {
AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo) item.getMenuInfo();
switch (item.getItemId()) {
case R.id.edit:
return true;
case R.id.delete:
return true;
default:
return super.onContextItemSelected(item);
}
}
This is the code I had to delete the items in my listview before I decided to switch to a floating context menu
public boolean onItemLongClick (AdapterView<?> parent, View view, int position, long id)
{
String temp = paymentTitle.get(position).toString();
paymentTitle.remove(position);
paymentDate.remove(position);
reminderDate.remove(position);
reminderTime.remove(position);
paymentVal.remove(position);
mDatabase = new MOSDatabase(this);
SQLiteDatabase readableDB = mDatabase.getWritableDatabase();
readableDB.delete("PaymentTable", "PTITLE=?",
new String[]{temp});
aa.notifyDataSetChanged();
return false;
}
If someone could advise me on how to get this floating context menu working I'd be really grateful. I don't have the edit method done just yet, it's what I have to do after I get this completed.

If I understand correctly, you can get the index of the item in the ListView at the click position by using the following code:
AdapterContextMenuInfo info = (AdapterContextMenuInfo) menuInfo;
int position = info.position;
Using position, you can reuse the code of onItemLongClick pretty much as is:
#Override
public boolean onContextItemSelected(MenuItem item) {
AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo) item.getMenuInfo();
int position = info.position;
switch (item.getItemId()) {
case R.id.edit:
return true;
case R.id.delete: {
String temp = paymentTitle.get(position).toString();
paymentTitle.remove(position);
paymentDate.remove(position);
reminderDate.remove(position);
reminderTime.remove(position);
paymentVal.remove(position);
mDatabase = new MOSDatabase(this);
SQLiteDatabase readableDB = mDatabase.getWritableDatabase();
readableDB.delete("PaymentTable", "PTITLE=?",
new String[]{temp});
aa.notifyDataSetChanged();
}
return true;
default:
return super.onContextItemSelected(item);
}
}
You might want to look at the answer to this question.

android: listview long click & context popup causing stackoverflowerror (possibly due to actionbarsherlock?) [duplicate]

I am developing an android application.I will have a listview and i have set a context menu to appear when a listview item is long-pressed.How do i get the item from the listview item selected(say text from a listview textview) after an action from the contextmenu is chosen so i can process it?
Here is some code:
protected void onCreate(Bundle savedInstanceState) {
-------
lv1 = (ListView) findViewById(R.id.listings);
registerForContextMenu(lv1);
lv1.setOnItemClickListener(this);
}
And the onCreateContextMenu:
public void onCreateContextMenu(ContextMenu menu, View v,
ContextMenuInfo menuInfo) {
super.onCreateContextMenu(menu, v, menuInfo);
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.context_menu, menu);
}
#Override
public boolean onContextItemSelected(MenuItem item) {
AdapterContextMenuInfo info = (AdapterContextMenuInfo) item
.getMenuInfo();
switch (item.getItemId()) {
case R.id.watch:
String name = "";
return true;
case R.id.buy:
return true;
default:
return super.onContextItemSelected(item);
}
}
I want to get text from a textview in a list item.How do i achieve that?

To get the item from the ListView item selected refer to ContextMenuInfo object (see last implemented method below). Full solution as follows:
1) register ListView for context menu in ListActivity class
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// ...
getListView().setAdapter(mAdapter);
registerForContextMenu(getListView());
}
1a) if you have complex View on your list you might need to enable long click on each list view in Adapter class
#Override
public View getView(int position, View convertView, ViewGroup parent) {
View view = convertView;
if (view == null) {
RelativeLayout layout = (RelativeLayout) LayoutInflater.from(mContext).inflate(R.layout.list_item, parent, false);
itemLayout = layout;
itemLayout.setLongClickable(true);
}
// ...
return view;
}
2) implement onCreateContextMenu() and onContextItemSelected() in ListActivity class
#Override
public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
super.onCreateContextMenu(menu, v, menuInfo);
AdapterContextMenuInfo info = (AdapterContextMenuInfo) menuInfo;
String title = ((MyItem) mAdapter.getItem(info.position)).getTitle();
menu.setHeaderTitle(title);
menu.add(Menu.NONE, MENU_CONTEXT_DELETE_ID, Menu.NONE, DELETE_TEXT);
}
#Override
public boolean onContextItemSelected(MenuItem item) {
switch (item.getItemId()) {
case MENU_CONTEXT_DELETE_ID:
AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
Log.d(TAG, "removing item pos=" + info.position);
mAdapter.remove(info.position);
return true;
default:
return super.onContextItemSelected(item);
}
}

The problem was the onItemLongClick() method, do not use it for context menu.
Instead, register the LISTVIEW for the context menu.
Here's the source.
for onCreate():
registerForContextMenu(lv);
And to access the selected item during long click:
#Override
public void onCreateContextMenu(ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
if (v.getId() == R.id.lv) {
ListView lv = (ListView) v;
AdapterView.AdapterContextMenuInfo acmi = (AdapterContextMenuInfo) menuInfo;
YourObject obj = (YourObject) lv.getItemAtPosition(acmi.position);
menu.add("One");
menu.add("Two");
menu.add("Three");
menu.add(obj.name);
}
}

1) First we use
#Override
public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
super.onCreateContextMenu(menu, v, menuInfo);
menu.add("View Selected Text");
}
2)
list--is ref if ListView
registerForContextMenu(list);
3)
#Override
public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
super.onCreateContextMenu(menu, v, menuInfo);
if(item.getTitle().equals("View Selected Text"))
{
AdapterContextMenuInfo menuInfo = (AdapterContextMenuInfo) item.getMenuInfo();
Contact c=array.get(menuInfo.position);
Toast.makeText(List.this, "Selected String is :-"+c.toString(), Toast.LENGTH_SHORT).show();
}
}

first get list using id
Context context = getApplicationContext();
ComponentName component = new ComponentName(context.getPackageName(), TestReplaceHomeAppActivity.class.getName());
String packname = context.getPackageName();
Intent LaunchIntent = getActivity().getPackageManager().getLaunchIntentForPackage(packageName);
if(LaunchIntent != null){
startActivity(LaunchIntent);
}
else {
Toast.makeText(getActivity().getBaseContext(),"APPLICATION IN NOT AVAILABEL", Toast.LENGTH_SHORT).show();
}

Write this in your longPressListener with the listview you use:
ListView list = (ListView) findViewById(android.R.id.list);
registerForContextMenu(list);
And this are the methods:
#Override
public void onCreateContextMenu(ContextMenu menu, View v,
ContextMenuInfo menuInfo) {
super.onCreateContextMenu(menu, v, menuInfo);
AdapterContextMenuInfo info = (AdapterContextMenuInfo) menuInfo;
Adapter adapter = getListAdapter();
Object item = adapter.getItem(info.position);
menu.setHeaderTitle("Choose");
menu.add(0, v.getId(), 0, "Delete");
}
#Override
public boolean onContextItemSelected(MenuItem item) {
if (item.getTitle() == "Delete") {
deleteContact(item.getItemId());
} else if (...) {
// code
} else {
return false;
}
return true;
}
public void deleteContact(int id){
// your code what to do for the clicked item
}

use these methods, onCreateContextMenu and onContextItemSelected\
#Override
public void onCreateContextMenu(ContextMenu menu, View v,
ContextMenuInfo menuInfo) {
if (v.getId() == R.id.listview) {
menu.setHeaderTitle("Delete");
menu.add(Menu.NONE, 0, 0, "Delete from list");
}
}
/**
* Responding to context menu selected option
* */
#Override
public boolean onContextItemSelected(MenuItem item) {
AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo) item
.getMenuInfo();
int menuItemIndex = item.getItemId();
// check for selected option
if (menuItemIndex == 0) {
// user selected delete
// delete the listrow
..(in your onitemclicklistener there is a parameter called as'postition' use this position and use some method to delete the data corresponding to the position value )
// reloading same activity again
Intent intent = getIntent();
finish();
startActivity(intent);
}
return true;
}

The above answers are very accurate and to the point for the case provided. That being said, I was brought here with using a convertView for my listview and am answering for those who are also brought here with this case.
If your LISTVIEW is using convertView and inflating a separate layout (say list_MyItem.xml), directly modify the list_MyItem.xml to have:
android:longClickable="true"
For example, if the listview is being populated with buttons modify the button as such:
<Button
android:id="#+id/myButton"
.
.
.
android:longClickable="true"
/>

Get value from list on onContextItemSelected ()?

Hi want to know can we get the value of a field defined in the list like id from database in
onContextItemSelected()? my code for creating context menu is pinning below, help appreciated, thnx
public boolean onContextItemSelected(MenuItem item) {
AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo) item.getMenuInfo();
long clickedPosition = info.id;
switch (item.getItemId()) {
case NEW_MENU_ITEM:
//callActivity(1);
break;
case SAVE_MENU_ITEM:
//callActivity(2);
break;
}
return super.onContextItemSelected(item);
}
#Override
public void onCreateContextMenu(ContextMenu menu, View view, ContextMenuInfo menuInfo) {
super.onCreateContextMenu(menu, view, menuInfo);
menu.setHeaderTitle("Options");
menu.add(0, NEW_MENU_ITEM, 0, "Delete");
menu.add(0, SAVE_MENU_ITEM, 1, "Rename");
}
the following code not retiring my id from database
long clickedPosition = info.id;

#Override
public boolean onContextItemSelected(MenuItem item) {
AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo) item.getMenuInfo();
Object obj = getListView().getItemAtPosition(info.position);
String name = obj.toString();
}

The value returned in that field depends entirely on your adapter implementation. It would be the same id that would be passed through to an OnItemClickListener, which is the value returned by getItemId() on your adapter.
If you are using CursorAdapter or a variant of that to supply the data to the list, then the _id column is the value returned by default, unless you have modified this method. For an ArrayAdapter, this is not the case and you would have to add the code to return the ID you need. If you need to pass back more complex data than just a single int, you could set a tag on the list item views with setTag() and retrieve it from the ContextMenuInfo since targetView is one of the parameters it carries.

You can retrieve the position of the element in this list by adding
int id= info.position
in onContextItemSelected;
Hope it helps

Set database_id as tag to your lisviewItem view.
view.setTag(database_id );
And get database_id from onContextItemSelected(MenuItem item) as
#Override
public boolean onContextItemSelected(android.view.MenuItem item) {
AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo) item
.getMenuInfo();
int listPosition = info.position;
switch (item.getItemId()) {
case call:
View view = info.targetView;
String database_id=(String) view.getTag();
return true;
case defaullt:
return true;
}
return super.onContextItemSelected(item);
}

Detecting which selected item (in a ListView) spawned the ContextMenu (Android)

I have a ListView that will allow the user to long-press an item to get a context menu. The problem I'm having is in determining which ListItem they long-pressed. I've tried doing this:
myListView.setOnCreateContextMenuListener(new OnCreateContextMenuListener() {
#Override public void onCreateContextMenu(ContextMenu menu, final View v, ContextMenuInfo menuInfo) {
menu.add("Make Toast")
.setOnMenuItemClickListener(new OnMenuItemClickListener() {
#Override public boolean onMenuItemClick(MenuItem item) {
String toastText = "You clicked position " + ((ListView)v).getSelectedItemPosition();
Toast.makeText(DisplayScheduleActivity.this, toastText, Toast.LENGTH_SHORT).show();
return true;
}
});
}
});
but it just hangs until an ANR pops up. I suspect that after the menu is created the ListItem is no longer selected.
It looks like you could monitor for clicks or long-clicks then record the clicked item there:
mArrivalsList.setOnItemLongClickListener(new OnItemLongClickListener() {
#Override public boolean onItemLongClick(AdapterView<?> parent, View v, int position, long id) {
// record position/id/whatever here
return false;
}
});
but that feels majorly kludgey to me. Does anyone have any better solutions for this?

I do exactly this. In my onCreateContextMenu(...) method, I cast the ContextMenu.ContextMenuInfo to AdapterView.AdapterContextMenuInfo. From there, you can get the targetView, which you cast again to the widget. The complete code is available in HomeActivity.java, look for the onCreateContextMenu(...) method.
#Override
public void onCreateContextMenu(ContextMenu contextMenu,
View v,
ContextMenu.ContextMenuInfo menuInfo) {
AdapterView.AdapterContextMenuInfo info =
(AdapterView.AdapterContextMenuInfo) menuInfo;
selectedWord = ((TextView) info.targetView).getText().toString();
selectedWordId = info.id;
contextMenu.setHeaderTitle(selectedWord);
contextMenu.add(0, CONTEXT_MENU_EDIT_ITEM, 0, R.string.edit);
contextMenu.add(0, CONTEXT_MENU_DELETE_ITEM, 1, R.string.delete);
}
Note that I store the selected text as well as the select id in private fields. Since the UI is thread confined, I know the selectedWord and selectedWordId fields will be correct for later actions.

First of all, I'm wondering if you're making things a little overly complicated by using View.setOnCreateContextMenuListener(). Things get a lot easier if you use Activity.registerForContextMenu(), because then you can just use Activity.onCreateContextMenu() and Activity.onContextItemSelected() to handle all of your menu events. It basically means you don't have to define all these anonymous inner classes to handle every event; you just need to override a few Activity methods to handle these context menu events.
Second, there's definitely easier ways to retrieve the currently selected item. All you need to do is keep a reference either to the ListView or to the Adapter used to populate it. You can use the ContextMenuInfo as an AdapterContextMenuInfo to get the position of the item; and then you can either use ListView.getItemAtPosition() or Adapter.getItem() to retrieve the Object specifically linked to what was clicked. For example, supposing I'm using Activity.onCreateContextMenu(), I could do this:
#Override
public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
super.onCreateContextMenu(menu, v, menuInfo);
// Get the info on which item was selected
AdapterContextMenuInfo info = (AdapterContextMenuInfo) menuInfo;
// Get the Adapter behind your ListView (this assumes you're using
// a ListActivity; if you're not, you'll have to store the Adapter yourself
// in some way that can be accessed here.)
Adapter adapter = getListAdapter();
// Retrieve the item that was clicked on
Object item = adapter.getItem(info.position);
}
#Override
public boolean onContextItemSelected(MenuItem item) {
// Here's how you can get the correct item in onContextItemSelected()
AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
Object item = getListAdapter().getItem(info.position);
}

this is another way on how to create context menu n how to delete the item selected here is the whole code
public class SimpleJokeList extends Activity {
public static final int Upload = Menu.FIRST + 1;
public static final int Delete = Menu.FIRST + 2;
int position;
ListView lv;
EditText jokeBox;
Button addJoke;
MyAdapter adapter;
private ArrayAdapter<String> mAdapter;
private ArrayList<String> mStrings = new ArrayList<String>();
String jokesToBeAdded;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.simplejokeui);
lv=(ListView)findViewById(R.id.jokelist);
addJoke=(Button)findViewById(R.id.addjoke);
jokeBox=(EditText)findViewById(R.id.jokebox);
mAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, mStrings);
registerForContextMenu(lv);
listItemClicked();
addJokes();
private void addJokes() {
// TODO Auto-generated method stub
addJoke.setOnClickListener(new OnClickListener(){
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
jokesToBeAdded=jokeBox.getText().toString();
if(jokesToBeAdded.equals("")){
Toast.makeText(getApplicationContext(), "please enter some joke", Toast.LENGTH_LONG).show();
}
else{
lv.setAdapter(mAdapter);
mAdapter.add(jokesToBeAdded);
jokeBox.setText(null);
}
}
});
}
private void listItemClicked() {
// TODO Auto-generated method stub
lv.setOnItemLongClickListener(new OnItemLongClickListener() {
#Override
public boolean onItemLongClick(AdapterView<?> arg0, View arg1,
int arg2, long arg3) {
// TODO Auto-generated method stub
position=arg2;
return false;
}
});
}
#Override
public void onCreateContextMenu(ContextMenu menu, View v,
ContextMenuInfo menuInfo) {
// TODO Auto-generated method stub
super.onCreateContextMenu(menu, v, menuInfo);
populateMenu(menu);
menu.setHeaderTitle("Select what you wanna do");
}
private void populateMenu(ContextMenu menu) {
// TODO Auto-generated method stub
menu.add(Menu.NONE, Upload, Menu.NONE, "UPLOAD");
menu.add(Menu.NONE, Delete, Menu.NONE, "DELETE");
}
#Override
public boolean onContextItemSelected(MenuItem item)
{
return (applyMenuChoice(item) || super.onContextItemSelected(item));
}
private boolean applyMenuChoice(MenuItem item) {
// TODO Auto-generated method stub
switch (item.getItemId())
{
case Delete:
String s=mAdapter.getItem(position);
mAdapter.remove(s);
// position--;
Toast.makeText(getApplicationContext(),"Congrats u HAve Deleted IT", Toast.LENGTH_LONG).show();
return (true);
}
return false;
}

And don't forget to put this
registerForContextMenu(listview);
in your onCreate method to get your context Menu visible.

We have used with success:
#Override
public boolean onContextItemSelected
(
MenuItem item
)
{
if (!AdapterView.AdapterContextMenuInfo.class.isInstance (item.getMenuInfo ()))
return false;
AdapterView.AdapterContextMenuInfo cmi =
(AdapterView.AdapterContextMenuInfo) item.getMenuInfo ();
Object o = getListView ().getItemAtPosition (cmi.position);
return true;
}

Isn't the view argument the actual selected row's view, or am I missing the question here?
ListView lv;
private OnItemLongClickListener onLongClick = new OnItemLongClickListener() {
public boolean onItemLongClick(AdapterView<?> arg0, View arg1,
int arg2, long arg3) {
lv.showContextMenuForChild(arg1);
lv.showContextMenu();
return false;
}
};

#Override
public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
super.onCreateContextMenu(menu, v, menuInfo);
AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo) menuInfo;
View TargetV=(View) info.targetView;
text1 = (String) ((TextView) TargetV.findViewById(R.id.textView1)).getText();
text2 = (String) ((TextView) TargetV.findViewById(R.id.textView2)).getText();
if(List3Ok){
text3 = (String) ((TextView) TargetV.findViewById(R.id.textView3)).getText();
}
selectedWord = text1 + "\n" + text2 + "\n" + text3;
selectedWordId = info.id;
menu.setHeaderTitle(selectedWord);
MenuInflater inflater = this.getActivity().getMenuInflater();
inflater.inflate(R.menu.list_menu, menu);
}

I case you are using SimpleCursorAdapder you may do it like this
#Override
public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
getActivity().getMenuInflater().inflate(R.menu.project_list_item_context, menu);
// Getting long-pressed item position
AdapterContextMenuInfo info = (AdapterContextMenuInfo) menuInfo;
int position = info.position;
// Get all records from adapter
Cursor c = ((SimpleCursorAdapter)getListAdapter()).getCursor();
// Go to required position
c.moveToPosition(position);
// Read database fields values associated with our long-pressed item
Log.d(TAG, "Long-pressed-item with position: " + c.getPosition());
Log.d(TAG, "Long-pressed-item _id: " + c.getString(0));
Log.d(TAG, "Long-pressed-item Name: " + c.getString(1));
Log.d(TAG, "Long-pressed-item Date: " + c.getString(2));
Log.d(TAG, "Long-pressed-item Path: " + c.getString(3));
// Do whatever you need here with received values
}