CODEWITHSUNDEEP
javaandroid
Tushar
Tushar

Reputation: 5935

error in deleting an item from listview

I am developing an android application in which i have a static listview which contains 5 items.

I want that when i click on selected item an alert dialog should appear containing buttons yes or no. If i click on yes, selected item should get deleted.

Is it possible? If yes, how? Can anyone guide me.The data in the list is static

Here is my java class code

http://pastebin.com/AMJy9cBH

Upvotes: 1

Views: 101

Answers (4)

Kannan Suresh
Kannan Suresh

Reputation: 4580

    ArrayList<String> sampleList;
    ArrayAdapter<String> sampleListArrayAdapter;

    ListView sampleListView = (ListView) findViewById(R.id.sampleListView);

    sampleListView.setOnItemClickListener(new OnItemClickListener() {

        @Override
        public void onItemClick(AdapterView<?> parent, View view,
            int position, long id) {

        AlertDialog.Builder builder = new AlertDialog.Builder(
            SampleActivity.this);
        builder.setMessage("Do you want delete this item?");
        builder.setCancelable(false);

        // On clicking "Yes" button
        builder.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
            sampleList.remove(position);

            sampleListArrayAdapter.notifyDataSetChanged();
        });

        // On clicking "No" button
        builder.setNegativeButton("No", new DialogInterface.OnClickListener() {

            public void onClick(DialogInterface dialog, int id) {
            dialog.cancel(); // Cancel dialog
            }
        });

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

Upvotes: 2

Aman Aalam
Aman Aalam

Reputation: 11251

When the user chooses to delete the row, get the row number where user wanted this deletion to happen, refer to the corresponding element of your source array, remove that element and then call Adapter.notifyDataSetChanged()

Upvotes: 0

Stephan
Stephan

Reputation: 4443

Remove the item from the data list and notify the list adapter about the change.

data.remove(Item);
notifyDataSetChanged();

Alert dialog tutorial is here: http://developer.android.com/guide/topics/ui/dialogs.html#AlertDialog

Upvotes: 0

Shailendra Singh Rajawat
Shailendra Singh Rajawat

Reputation: 8242

call adapter.clear() followed by adapter.notifyDataSetChanged() when you want to delete the elements.

Upvotes: 0

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