Re: [android-developers] Re: Back button problem in android
its very simple , in back button only the finish(); is executed . It means that the existing activity is canceled . If that activity leads to the last GUI screen of you application then the application gets closed . Try to override it . On Wed, Sep 14, 2011 at 4:52 PM, Vance Turnewitsch < betweenthehi...@gmail.com> wrote: > > First, I think you are asking a user question. This is a developer > forum. I would suggest looking for the android market help forum. > > http://www.google.com/support/forum/p/Android+Market/label?lid=1d903020a35e806e&hl=en > . > Or contact the developer of the app. Also for the time being, > developers design their apps in different ways. You may not be able to > go back to your activity; but maybe should try accessing recent apps > with your device and choose your app. > > Good luck > Vance > On Sep 14, 7:43 am, pramod shirsath wrote: > > when i click on androids back button it stops whole activitybut i > > want to come back to previous page..can anyone help me to > > solve this problem... > > -- > 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 > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en > -- Thanks&Regards Kaushik Pendurthi http://kaushikpendurthi.blogspot.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 For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Re: Back button problem
no no i want to know if you guys are ganna make something like the ipad On Wed, Dec 8, 2010 at 8:47 PM, nithya nataraj wrote: > hi, > i am not android developer even i am learinig android like u and working on > a application > i dnt no how did u mail me > tats k > i no a bit abt database , i thnk ur printing these contents in logcat > dnt do tat ,check in cmd prompt u can get wer is the mistake > > -- > 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 > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en -- 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 For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Re: Back button problem
your on the list thats how i e-mail you On Wed, Dec 8, 2010 at 9:09 PM, shareem sharif wrote: > nvm ill get back at you later > > > On Wed, Dec 8, 2010 at 9:04 PM, pramod.deore wrote: > >> > i dnt no how did u mail me >> >> Did I? >> >> On Dec 9, 9:47 am, nithya nataraj wrote: >> > hi, >> > i am not android developer even i am learinig android like u and working >> on >> > a application >> > i dnt no how did u mail me >> > tats k >> > i no a bit abt database , i thnk ur printing these contents in logcat >> > dnt do tat ,check in cmd prompt u can get wer is the mistake >> >> -- >> 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 >> For more options, visit this group at >> http://groups.google.com/group/android-developers?hl=en > > > -- 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 For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Re: Back button problem
nvm ill get back at you later On Wed, Dec 8, 2010 at 9:04 PM, pramod.deore wrote: > > i dnt no how did u mail me > > Did I? > > On Dec 9, 9:47 am, nithya nataraj wrote: > > hi, > > i am not android developer even i am learinig android like u and working > on > > a application > > i dnt no how did u mail me > > tats k > > i no a bit abt database , i thnk ur printing these contents in logcat > > dnt do tat ,check in cmd prompt u can get wer is the mistake > > -- > 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 > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en -- 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 For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Re: Back button problem
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 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 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 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(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
> T
Re: [android-developers] Re: Back button problem
hi, i am not android developer even i am learinig android like u and working on a application i dnt no how did u mail me tats k i no a bit abt database , i thnk ur printing these contents in logcat dnt do tat ,check in cmd prompt u can get wer is the mistake -- 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 For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Re: Back button problem
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 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(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
--
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