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
>
> >> --
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>
> > --
> > You received this message because you are subscribed to the Google
> > Groups "Android Developers" group.
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>
> --
> Regards,
> Vani Reddy
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