This behavior usually indicates that your ListView uses a height of wrap_content. It's a bad idea in general as it's pretty expensive.
On Fri, Feb 24, 2012 at 1:03 PM, Pavel Dudka <[email protected]> wrote: > I don't think you can avoid this since getView will be called multiple > times no matter how much items in your list. It will be called every > time your list needs to be redrawn. So in your case I wouldn't rely on > idea that getView() is called only once. > > What you can do in your situation is to maintain a List of custom > Items in your adapter (which is already done on this stage I hope :) ) > and do a async request to fetch the name whenever you add new element > to this list. When name is acquired - update name field in your item > and add this item to your list (don't forget to notify changes) > On getView() you can retrieve already downloaded "name" based on > "position" argument. > So idea is following: > > class CustomItem > { > public String name; > } > > Adapter: > - ArrayList<CustomItem> list > > onAddNewItemToList() > { > requestName(); <- this is async loader. Choose callback mechanizm > which is more suitable for your situation > } > > onNameReceived(String name) > { > CustomItem newItem = new CustomItem(); > list.add(newItem); > notifyDataSetChanged(); <- should be called from UI thread > } > > public View getView(final int position, View convertView, ViewGroup > parent) > { > ...... <- do some preparations here > someTextView.setText(list.get(position).name); > } > > On Feb 24, 5:14 am, vani reddy <[email protected]> wrote: >> hi, >> >> ok but for a count of 1 the getview is called almost 10 times.How to avoid >> this?? >> >> >> >> >> >> On Fri, Feb 24, 2012 at 6:42 PM, luciofm <[email protected]> wrote: >> > First of all, you should never do I/O (disk, networking) operations on >> > getView() or your scrolling will be very sluggish, since they will run on >> > the UI Thread an will block the scrolling until the request is fulfilled. >> >> > Lúcio Maciel >> > [email protected] >> >> > On Fri, Feb 24, 2012 at 10:19, vani reddy >> > <[email protected]>wrote: >> >> >> Hey Check, >> >> >> @Override >> >> public View getView(final int position, View convertView, ViewGroup >> >> parent) { >> >> >> ViewHolder holder; >> >> if (convertView == null) { >> >> convertView = mInflater.inflate(R.layout.commentitem, null); >> >> >> holder = new ViewHolder(); >> >> holder.fbName = (TextView) convertView >> >> .findViewById(R.id.reviewText); >> >> holder.fbName.setTypeface(fontObj_rockwell); >> >> holder.fbImage = (ImageView) >> >> convertView.findViewById(R.id.fbImage); >> >> >> convertView.setTag(holder); >> >> } else { >> >> holder = (ViewHolder) convertView.getTag(); >> >> } >> >> >> String profileFBURL = "http://graph.facebook.com/"; >> >> + m_Show.getFbids_watching().get(position) + "/picture"; >> >> // Utility.setImageToImageView(profileFBURL, holder.fbImage); >> >> >> holder.fbImage.setImageBitmap(model.getRoundedImage(profileFBURL, >> >> profileFBURL, 10)); >> >> >> try { >> >> FriendInfo frndInfo = FacebookFriendAPIHandler >> >> .getFacebookFriendInfo(m_Show.getFbids_watching().get( >> >> position)); >> >> holder.fbName.setText(frndInfo.getName()); >> >> } catch (Exception e) { >> >> >> e.printStackTrace(); >> >> } >> >> >> convertView.setOnClickListener(new View.OnClickListener() { >> >> >> @Override >> >> public void onClick(View v) { >> >> >> Intent intent =new >> >> Intent(activity,UserProfileActivity.class); >> >> Bundle bundle =new Bundle(); >> >> >> bundle.putString("fbID",String.valueOf(m_Show.getFbids_watching().get(position))); >> >> bundle.putString("class", "wall"); >> >> intent.putExtras(bundle); >> >> >> View view1 = WallGroup.group >> >> .getLocalActivityManager() >> >> .startActivity( >> >> "UserProfileActivity", >> >> >> intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP)) >> >> .getDecorView(); >> >> >> // Again, replace the view >> >> WallGroup.group.replaceView(view1); >> >> >> } >> >> }); >> >> return convertView; >> >> } >> >> >> -- >> >> Regards, >> >> Vani Reddy >> >> >> -- >> >> You received this message because you are subscribed to the Google >> >> Groups "Android Developers" group. >> >> To post to this group, send email to [email protected] >> >> To unsubscribe from this group, send email to >> >> [email protected] >> >> 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 [email protected] >> > To unsubscribe from this group, send email to >> > [email protected] >> > For more options, visit this group at >> >http://groups.google.com/group/android-developers?hl=en >> >> -- >> Regards, >> Vani Reddy > > -- > You received this message because you are subscribed to the Google > Groups "Android Developers" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en -- Romain Guy Android framework engineer [email protected] -- You received this message because you are subscribed to the Google Groups "Android Developers" group. 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