Question

I am making an android application that needs to use a ListView. I want to add a menubutton that says “Add to list” and once the user presses that menubutton, it pops up a popupwindow containing a TextView, EditText and two Buttons, “Ok” and “Cancel”. Once the user presses “Ok”, the text inside the EditText should be added to the ListView. And the cancel Button is obvious. I also want to be able to long press on a ListView item to open a popupwindow containing a delete Button. I want to design the ListView screen using XML. How can i make this possible??? Please help me and thanks SO much in advance! I am using this code so far:

ListView activity:

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

Main screen XML:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@drawable/background"
android:orientation="vertical" >








<ListView
    android:id="@+id/list"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content" >

</ListView>

</LinearLayout>

Answer 1

1. You have to create a layout containing a listView.

2. You have to create an xml lyout corresponding to one row of your list view.

3. You have to create an adapter which will populate data to insert in your listView

4. You have to create an onClickListener on your button to add data in your list

5. If you are using an ArrayAdapter or a CursorAdapter, add the new
   item you created to the list or the cursor used by your adapter and
   (notifyDataSetChanged() is automatically called), so your adapter will update the
   listview

Source :
http://developer.android.com/resources/tutorials/views/hello-listview.html

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