Remove element from listview (swipe or click)

Question

I'm trying to create a dynamic listview. I can add an item but i can't remove it right now. The code actually it's very simple and every guide i saw are too much complicated for me and my code. I want something simple to add in my MainActivity to remove the item selceted. I don't care in which way, swipe like gmail or by click or any other way.. I just want i simple way to remove an element of the list. This is the Activity

public class MainActivity extends Activity {
    private EditText etInput;
    private Button btnAdd;
    private ListView lvItem;
    private ArrayList<String> itemArrey;
    private ArrayAdapter<String> itemAdapter;

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        setUpView();

    }

    private void setUpView() {
        // TODO Auto-generated method stub
        etInput = (EditText)this.findViewById(R.id.editText_input);
        btnAdd = (Button)this.findViewById(R.id.addbtn);
        lvItem = (ListView)this.findViewById(R.id.listView_items);


        itemArrey = new ArrayList<String>();
        itemArrey.clear();

        itemAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1,itemArrey);
        lvItem.setAdapter(itemAdapter);


        btnAdd.setOnClickListener(new View.OnClickListener() {

            public void onClick(View v) {

                addItemList();
            }
        });

        etInput.setOnKeyListener(new View.OnKeyListener() {

            public boolean onKey(View v, int keyCode, KeyEvent event) {
                // TODO Auto-generated method stub

                if (keyCode == KeyEvent.KEYCODE_ENTER) {
                    addItemList();
                }
                return true;
            }
        });


    }

    protected void addItemList() {

    if (isInputValid(etInput)) {
        itemArrey.add(0,etInput.getText().toString());
        etInput.setText("");

        itemAdapter.notifyDataSetChanged();

    }   

    }

    protected boolean isInputValid(EditText etInput2) {
        // TODO Auto-generatd method stub
        if (etInput2.getText().toString().trim().length()<1) {
            etInput2.setError("Insert a value");
            return false;
        } else {
            return true;
        }

    }
}

Is it possible insert some part of code to remove an item inside my activity code? Thanks

Murali Ganesan · Accepted Answer · 2013-10-10T10:30:19.470

try this, While ListView item long ClickListener you can do it

 lvItem.setOnItemLongClickListener(new OnItemLongClickListener() {

        @Override
        public boolean onItemLongClick(AdapterView<?> parent, View v,
                int position, long id) {
            // TODO Auto-generated method stub
                                AlertDialog.Builder adb = new AlertDialog.Builder(
                    YourActivity.this);
            adb.setTitle("Are you sure want to delete this item");
            adb.setPositiveButton("Yes",
                    new DialogInterface.OnClickListener() {

                        @Override
                        public void onClick(DialogInterface dialog,
                                int which) {
                            // TODO Auto-generated method stub
                            itemArrey.remove(position);
                            itemAdapter.notifyDataSetChanged();


                        }
                    });
            adb.setNegativeButton("NO",
                    new DialogInterface.OnClickListener() {

                        @Override
                        public void onClick(DialogInterface dialog,
                                int which) {
                            // TODO Auto-generated method stub
                             dialog.dismiss();

                        }
                    });
            adb.show();

            return false;
        }
    });

get this error: `The method setOnLongClickListener(View.OnLongClickListener) in the type View is not applicable for the arguments (new OnItemLongClickListener(){})` — David_D, Oct 10 '13 at 08:58
sorry, it works! :) is possible add a dialog that says something like "Do you want really remove this item?" and if yes remove it, no of course, not — David_D, Oct 10 '13 at 09:00
Create and show a dialog in the onItemClickListener method. To get the result of the dialog you can make something like this: http://stackoverflow.com/questions/9776088/get-data-back-from-a-fragment-dialog-best-practices/14403830#14403830 You can then remove the element at the returning method of the Dialog (if the user clicked yes ^^) — juanmeanwhile, Oct 10 '13 at 09:02

score 2 · Answer 2 · edited Aug 11 '21 at 07:38

2

This should help you.

lv.setOnItemLongClickListener(new OnItemLongClickListener() {
                   
    @Override
    public boolean onItemLongClick(AdapterView<?> arg0, View arg1, int position, long id) {
        itemArrey.remove(position);     
        itemAdapter.notifyDataSetChanged();            
        return true;
    }
});

edited Aug 11 '21 at 07:38

AmrDeveloper

3,826
1
21
30

answered Oct 10 '13 at 08:47

Umer Farooq

7,356
7
42
67

if it's possible create a dialog that confirm or not the choice it's amazing. or something like that – David_D Oct 10 '13 at 09:02

score 0 · Answer 3 · answered Oct 10 '13 at 08:47

Put this method in your onCreate:

lvItem .setOnItemClickListener(new OnItemClickListener() {
   public void onItemClick(AdapterView<?> parent, View v,int position, long id) {
        itemArrey.remove(position);
        itemAdapter.notifyDataSetChanged();
   });
}

score 0 · Answer 4 · edited May 23 '17 at 12:05

0

Of course it is possible. ArrayList.html#remove

Or if you don't know the index just iterate through the list. Calling remove in foreach loop in Java

edited May 23 '17 at 12:05

Community

1
1

answered Oct 10 '13 at 08:52

halber

197
2
11

score 0 · Answer 5 · answered Oct 10 '13 at 08:58

0

Do this way..

lvItem.setOnItemLongClickListener(new OnItemLongClickListener() {
            @Override
            public boolean onItemLongClick(AdapterView<?> arg0, View arg1,
                    int position, long id) {

                itemArrey.remove(position);
                itemAdapter.notifyDataSetChanged();  
                return true;

            }
        });

answered Oct 10 '13 at 08:58

Brijesh Patel

676
1
5
13

please try this code and let me know. waiting for your feedback – Brijesh Patel Oct 10 '13 at 09:00
hey murali, please atleast upvote answer if you think it's correct – Brijesh Patel Oct 10 '13 at 09:04

score 0 · Answer 6 · answered Oct 10 '13 at 09:01

0

To delete item from list just do one thing, get onLongClickListener of listView. Then open the context menu which has two options

Delete
Cancel

When user picks first item delete it from list. Then call listadapter notify datasetChanged method.

answered Oct 10 '13 at 09:01

Shrikant Salunkhe

329
1
4
14

Pratik Dasa · Answer 7 · 2013-10-10T10:32:39.540

Try below code:

single click:

listview .setOnItemClickListener(new OnItemClickListener() {
       public void onItemClick(AdapterView<?> parent, View v,int position, long id) {

            showDialog(int position);

       });
    }

public void showDialog(int position){
    AlertDialog alertDialog;
AlertDialog.Builder builder = new AlertDialog.Builder(BaseActivity.this);
    alertDialog = builder.create();
    alertDialog.setOnDismissListener(new myOnDismissListener());

    alertDialog.setTitle(TITLE OF DIALOG);
    alertDialog.setMessage(MESSAGE YOU WANT TO SHOW IN DIALOG);
    alertDialog.setButton(DialogInterface.BUTTON_POSITIVE, "OK", new DialogInterface.OnClickListener() {
        public void onClick(DialogInterface dialog, int whichButton) {

                    YOUR ARRAY.remove(position);
                    YOUR ADAPTER.notifyDataSetChanged();

        }
    });
    alertDialog.setButton(DialogInterface.BUTTON_NEGATIVE, "CANCEL", new DialogInterface.OnClickListener() {
        public void onClick(DialogInterface dialog, int whichButton) {
        }

    });
    alertDialog.show();
}

it works, but i need to make something to confirm or not my choice. Something like a dialog with "cancel" or "delete". — David_D, Oct 10 '13 at 09:05
ya so you can do it also, ket me edit my answer, just wait for a minute. — Pratik Dasa, Oct 10 '13 at 09:08
see my edited answer, and if u found it useful then accept and upvote my answer. — Pratik Dasa, Oct 10 '13 at 09:14

score 0 · Answer 8 · answered Oct 10 '13 at 09:16

0

Use this library, I used this and it works very fine, if you prefer Swipe try this:

https://github.com/47deg/android-swipelistview

answered Oct 10 '13 at 09:16

Ezrou

438
6
14

Remove element from listview (swipe or click)

8 Answers8