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package cgeo.geocaching.ui;
import cgeo.geocaching.R;
import android.content.Context;
import android.graphics.drawable.Drawable;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.ImageView;
import java.util.List;
public abstract class AbstractImageAdapter extends BaseAdapter {
private final Context context;
// references to our images
private final List<Integer> imageIds;
private final int imageWidth;
public AbstractImageAdapter(final Context context, final GridView gridView, final List<Integer> imageIds) {
this.context = context;
this.imageIds = imageIds;
final Drawable drawable = context.getResources().getDrawable(imageIds.get(0));
imageWidth = drawable.getIntrinsicWidth();
// fix the column width, now that we know the images
gridView.setColumnWidth(getImageWidth());
}
@Override
public int getCount() {
return imageIds.size();
}
@Override
public Object getItem(final int position) {
return null;
}
@Override
public long getItemId(final int position) {
return 0;
}
// create a new ImageView for each item referenced by the Adapter
@Override
public View getView(final int position, final View convertView, final ViewGroup parent) {
ImageView imageView;
if (convertView == null) { // if it's not recycled, initialize some attributes
imageView = (ImageView) LayoutInflater.from(context).inflate(R.layout.grid_image, null);
} else {
imageView = (ImageView) convertView;
}
imageView.setImageResource(imageIds.get(position));
return imageView;
}
int getImageWidth() {
return imageWidth;
}
}
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