Can't you just refresh the listview instead of creating a new Activity?
If you instead really want to create a new one, before calling
startActivity() call finish(), so that pressing back will skip that "old"
list activity.
On Wed, Dec 8, 2010 at 12:08 PM, pramod.deore <deore.pramo...@gmail.com>wrote:
> Hi everybody,
>
> In my application I am displaying list. I have created
> ContextMenu. In that there are options like add,remove,back,etc...
> Now when I select Remove option then I call method
> deleteRecord(), which delete that list record from database. After
> that I call method - startActivity(getIntent()); Because of this
> method activity restarts and list changes are instantly visible to
> user because in start method I had write code that display the list
> like.
>
> public void onCreate(Bundle savedInstanceState)
> {
> super.onCreate(savedInstanceState);
>
> try
> {
> sampleDB = this.openOrCreateDatabase(SAMPLE_DBNAME,
> MODE_PRIVATE, null);
>
> Cursor c = sampleDB.rawQuery ("SELECT RoomName,
> SwitchFullName FROM SwitchTable ORDER BY RoomName",null);
>
> int count = c.getCount();
> System.out.println ("Total number of records are"+count);
> if (c != null )
> {
> if (c.moveToFirst())
> {
> do
> {
> roomName =
> c.getString(c.getColumnIndex("RoomName"));
> switchName =
> c.getString(c.getColumnIndex("SwitchFullName"));
>
> System.out.println
> (roomName+":"+switchName);
>
> results.add(roomName+"-"+switchName);
>
> }
> while (c.moveToNext());
> c.close();
> }
> }
>
> this.setListAdapter(new ArrayAdapter<String>(this,
> android.R.layout.simple_list_item_1,results));
>
>
>
> }
> catch (SQLiteException se )
> {
> Log.e(getClass().getSimpleName(), "Could not create or Open
> the database");
> }
> finally
> {
> //sampleDB.close();
> }
>
> registerForContextMenu(getListView());
> }
>
>
> Now suppose I have list like this
>
> Hall - Fan
> Kitchen - AC
> Bedroom - tv
>
> and suppose I delete record no 1 then list display as following
>
> Kitchen - AC
> Bedroom - tv
>
> It looks perfectly well. But suppose I press the back button then
> list is again display as
>
> Hall - Fan
> Kitchen - AC
> Bedroom - tv
>
> Actually first record is deleted succesfully, but though also it is
> displayed when I press back button. How to avoid this problem?
>
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