delete item from list view

Question

I have an issue in my application, i have a list view generated from database, i want when

the user click on an item that he will be deleted, i tried many solution but it's not

working, i did as a solution

                     arg0.removeView(arg0.getChildAt(position));              

                        adapter.notifyDataSetChanged();

help please .

private void populateListViewFromDB() {
Cursor cursor = db.getAllRecords();
startManagingCursor(cursor);    

String[] databaseColumnNames = new String[] { DBAdapter.col_Region };
int[] toViewIDs = new int[] { android.R.id.text1, android.R.id.text2 };

SimpleCursorAdapter myCursordapter = new SimpleCursorAdapter(this,
        android.R.layout.simple_expandable_list_item_1, cursor,
        databaseColumnNames, toViewIDs, FLAG_REGISTER_CONTENT_OBSERVER);

final ListView list = (ListView) findViewById(android.R.id.list);

        list.setAdapter(myCursordapter);

        final String items[] = { "Completer le questionnaire" };

list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
    public void onItemClick(final AdapterView<?> arg0, View arg1,
            final int position, long arg3) {

        Toast.makeText(getApplicationContext(), " " + position,
                Toast.LENGTH_LONG).show();


        AlertDialog.Builder builder = new AlertDialog.Builder(
                MainActivity.this);
  final String s = ((TextView)arg1).getText().toString();


  builder.setTitle(s);

   builder.setItems(items, new   
           DialogInterface.OnClickListener() {
       public void onClick(DialogInterface dialog, int which) {

             db.insertest(s);

             arg0.removeView(arg0.getChildAt(position));


                        adapter.notifyDataSetChanged();                         
              Intent intent = new Intent(MainActivity.this, ActivityUn.class);
             intent.setFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT);
             startActivity(intent);             


   }
   });

   AlertDialog alert = builder.create();
   alert.show();

how to solve that ???

Utman Alami
– Utman Alami

2014-01-23 14:05:35 +00:00
Commented Jan 23, 2014 at 14:05 — Utman Alami
– Utman Alami, Commented Jan 23, 2014 at 14:05

Nambi · Accepted Answer · 2014-01-23 12:55:12Z

1

remove the item in adapter then automatically it deletes in listview

adapter.remove(adapter.getItem((position));

answered Jan 23, 2014 at 12:55

Nambi

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1 Comment

Utman Alami Over a year ago

i have this error : The method remove(Object) is undefined for the type SimpleCursorAdapter !!

user3516009 · Accepted Answer · 2014-07-02 13:39:44Z

0

in your SQLiteOpenHelper class add this

                 public void delete(int id){
                 List<your_object> ids = new ArrayList<your_object>();
                 SQLiteDatabase db = this.getWritableDatabase();
                 Cursor c = db.rawQuery("SELECT*FROM "+your_table,null);
                 while(c.moveToNext()){
                 ids.add(c.getString(0));
                 }
                 db.delete(your_table,your_id+" =?",new String[]
                 {String.valueOf(ids.get(id)}

change the yours to your variables only.

answered Jul 2, 2014 at 13:39

user3516009

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