onItemLongClick is undefined?

Question

I'm trying to implement a long click in my listview item but it doesn't work and i get an error that says is undefined. Here's the code:

protected void setOnItemLongClickListener(ListView l, View v, int position, long id) {
        super.onItemLongClick(l, v, position, id);// Error

        ApplicationInfo app = applist.get(position);
        try {
            Intent intent = packageManager
                    .getLaunchIntentForPackage(app.packageName);

            if (null != intent) {
                startActivity(intent);
            }
            } catch (ActivityNotFoundException e) {
                Toast.makeText(MainActivity.this, e.getMessage(),
                        Toast.LENGTH_LONG).show();
            } catch (Exception e) {
                Toast.makeText(MainActivity.this, e.getMessage(),
                        Toast.LENGTH_LONG).show();
            }

    }

Someone has an idea how solve the problem?Thanks

@David_D see my edit. You have the wrong `return type` for the method. — codeMagic, Oct 23 '13 at 13:58

codeMagic · Answer 1 · 2013-10-23T13:57:40.417

1

The reason for this is most likely that you don't implement the listener. Something like

public class ActivityName extends Activity implements OnItemLongClickListener{

Try changing

protected void setOnItemLongClickListener

to

protected boolean setOnItemLongClickListener{
      // your code
      return true;

You need to use the proper return type for the method which is boolean then return true so the listener knows it was a success.

Docs

edited Oct 23 '13 at 13:57

answered Oct 23 '13 at 12:43

codeMagic

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i've already written the implements but nothing.. Always `The method onItemLongClick(ListView, View, int, long) is undefined for the type ListActivity` – David_D Oct 23 '13 at 12:45
@David_D without seeing more of your code, I would suggest cleaning "Project --> Clean..." and see if that helps. Also, add the `@Override` annotation before the method. You may also copy the entire method, delete it, and paste back in. I've had trouble with Eclipse before where I needed to do that if I didn't do everything in the order it wanted. – codeMagic Oct 23 '13 at 13:03

Gajendra Rawat · Answer 2 · 2013-10-23T12:56:49.543

0

Please replace

public class MainActivity extends Activity  implements OnItemLongClickListener

and add unimplemented method

@Override
    public boolean onItemLongClick(AdapterView<?> arg0, View arg1, int arg2,
            long arg3) {
        // TODO Auto-generated method stub
        return false;
    }

by default you can do this by right clicking on OnItemLongClickListener select Quick fix

edited Oct 23 '13 at 12:56

answered Oct 23 '13 at 12:42

Gajendra Rawat

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same problem.. the error is: `The method onItemLongClick(ListView, View, int, long) is undefined for the type ListActivity` – David_D Oct 23 '13 at 12:43
replace this public class MainActivity extends Activity implements OnItemLongClickListener add its unimplemented methods @Override public boolean onItemLongClick(AdapterView> arg0, View arg1, int arg2, long arg3) { // TODO Auto-generated method stub return false; } – Gajendra Rawat Oct 23 '13 at 12:51
what i don't understand is; have i to put my entire code inside this method? – David_D Oct 23 '13 at 13:00
maybe i wrong something... can you take my code and show me what i have to do exactly? i get a lot errors :( also in the rest of activity – David_D Oct 23 '13 at 13:11
let us [continue this discussion in chat](http://chat.stackoverflow.com/rooms/39842/discussion-between-morroko-and-david-d) – Gajendra Rawat Oct 23 '13 at 16:42

score 0 · Answer 3 · answered Oct 23 '13 at 12:44

0

try this listener for Listview :

istView.setOnItemLongClickListener(new OnItemLongClickListener() {
        @Override
        public boolean onItemLongClick(AdapterView<?> arg0, View arg1,
                int arg2, long arg3) {
            Toast.makeText(arg0.getContext(), ((TextView)arg1).getText(), Toast.LENGTH_SHORT).show();
            return false;
        }
    });

answered Oct 23 '13 at 12:44

Harshit Rathi

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replace your listener with this listener. – Harshit Rathi Oct 23 '13 at 13:02

score 0 · Answer 4 · answered Oct 23 '13 at 12:46

0

use this code

yourListView.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {
        @Override
        public boolean onItemLongClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {

            //YOUR_CODE_HERE

            return false;
        }
    });

answered Oct 23 '13 at 12:46

Himanshu Joshi

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to access items on listView AdapterView is taken. So use override method of that that listen for the long click event – Himanshu Joshi Oct 23 '13 at 12:57

steevoo · Answer 5 · 2013-10-23T13:13:55.073

0

try to add this lines to your list adapter

        view.setOnLongClickListener(new View.OnLongClickListener() {

            @Override
            public boolean onLongClick(View v) {
                return false;
            }
        });

and the method is try to overwrite your method

@Override
public boolean onItemLongClick(
        AdapterView<?> parent, View view,
        int position, long id) {
    // TODO Auto-generated method stub
    return false;
}

edited Oct 23 '13 at 13:13

answered Oct 23 '13 at 13:07

steevoo

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mmh my list become not clickable adding the code in the list adapter :( – David_D Oct 23 '13 at 13:35

onItemLongClick is undefined?

5 Answers5