ListView performance is slow

ListView performance is slow

I have a custom ListView where I display some weapons which are retrieved
from a local database. I have a total of 88 rows, for each row a text and
an image is set each time getView() is called. The ListView lags while
scrolling fast and the garbage collector is going insane, deleting some 1M
objects per second. I'm not getting why.
Before I post my Adapter implementation, some explanation about how the
Image is set. My Weapon class is simply a data holder with setters and
getters. This is how names and images are getting set when the database
gets created (yeah it might seem very strange, but all other solutions
work even more slowly):
Weapon w = new Weapon();
w.setId(cursor.getLong(0));
w.setName(cursor.getString(1));
w.setImage(Constants.ALL_WEAPON_IMAGES[(int) cursor.getLong(0)-1]);
So I have an Array containing all weapon images in the form of
R.drawable.somegun. The data structure is implemented such way that ID-1
always points to the right drawable reference in my Array. The image field
in the Weapon class is an Integer. Now you have an idea how my getImage()
method works and below goes my Adapter:
public class Weapon_Adapter extends BaseAdapter {
private List<Weapon> items;
private LayoutInflater inflater = null;
private WeaponHolder weaponHolder;
private Weapon wp;
static class WeaponHolder {
public TextView text;
public ImageView image;
}
// Context and all weapons of specified class are passed here
public Weapon_Adapter(List<Weapon> items, Context c) {
this.items = (List<Weapon>) items;
inflater = LayoutInflater.from(c);
Log.d("Adapter:", "Adapter created");
}
@Override
public int getCount() {
return items.size();
}
@Override
public Weapon getItem(int position) {
return items.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
wp = (Weapon) getItem(position);
if (convertView == null) {
convertView = inflater.inflate(R.layout.category_row, null);
weaponHolder = new WeaponHolder();
weaponHolder.text = (TextView) convertView
.findViewById(R.id.tvCatText);
weaponHolder.image = (ImageView) convertView
.findViewById(R.id.imgCatImage);
convertView.setTag(weaponHolder);
}
weaponHolder = (WeaponHolder) convertView.getTag();
weaponHolder.text.setText(wp.getName());
weaponHolder.image.setImageResource(wp.getImage());
// weaponHolder.image.setImageResource(R.drawable.ak74m);
return convertView;
}}
Now the strange thing: using the outcommented line to statically set the
same image for all items removes all lags and GC in not even called once!
I'm not getting it.. wp.getImage() returns exactly the same thing, only
R.drawable.name is different for each weapon. But GC removes tons of
objects and the ListView lags while scrolling. Any ideas what I'm doing
wrong?
P.S. I've tried all possible ways of saving the Image to database, and all
possible ways to set it, including setImageBitmap(), setImageDrawable()..
the one I posted above is the fastest, though it also causes lag and many
GC calls