So...if you have 2 items in your listview and you delete one...and call your method that reloads the list you get 3 items instead of 1? Probably you just have to empty the list before re-adding the items that are in the db.
On Thu, Dec 9, 2010 at 4:53 AM, pramod.deore <deore.pramo...@gmail.com>wrote: > Hello , Now I had place the code that loads data from the database in > a function and called that function when user hit the delete button . > But now record gets deleted, but changes are not visible properly. > (Properly means suppose there are 2 records and if I delete one record > then at this time it shows me 3 records i.e 2 earlier and one after > removing one record out of that 2 But actually one record gets > successfully deleted. When I restarts the application and see the > record then only one record it shows.) Then how to refresh this list > view screen? > > On Dec 8, 4:47 pm, Kostya Vasilyev <kmans...@gmail.com> wrote: > > Also, don't do this: > > > > startActivity(getIntent()); > > > > This launches a new activity just like the current one. > > > > If you need to keep the current activity and update the UI with new > > data, just put that code in a function and call it when necessary. > > > > -- Kostya > > > > 08.12.2010 14:31, pramod.deore пишет: > > > > > > > > > Thanks Kostya for your suggestion and link. > > > > > On Dec 8, 4:27 pm, Kostya Vasilyev<kmans...@gmail.com> wrote: > > >> Pramod, > > > > >> Move the code that loads data from the database from onCreate to > onStart. > > > > >> See this for an explanation: > > > > >>http://developer.android.com/guide/topics/fundamentals.html#actlife > > > > >> ( scroll down to see a very useful flowchart ) > > > > >> -- Kostya > > > > >> 08.12.2010 14:08, pramod.deore пишет: > > > > >>> 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? > > >> -- > > >> Kostya Vasilyev -- WiFi Manager + pretty widget -- > http://kmansoft.wordpress.com > > > > -- > > Kostya Vasilyev -- WiFi Manager + pretty widget -- > http://kmansoft.wordpress.com > > -- > You received this message because you are subscribed to the Google > Groups "Android Developers" group. > To post to this group, send email to android-developers@googlegroups.com > To unsubscribe from this group, send email to > android-developers+unsubscr...@googlegroups.com<android-developers%2bunsubscr...@googlegroups.com> > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en > -- YuviDroid Check out Launch-X <http://android.yuvalsharon.net/launchx.php> (a widget to quickly access your favorite apps and contacts!) http://android.yuvalsharon.net -- You received this message because you are subscribed to the Google Groups "Android Developers" group. 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