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
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