Here is the code:
public class HelloGallery extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Gallery g = new Gallery(this);
g.setAdapter(new ImageAdapter(this));
setContentView(g);
}
public class ImageAdapter extends BaseAdapter {
int mGalleryItemBackground;
private Context mContext;
private Integer[] mImageIds = {
R.drawable.sample_1,
R.drawable.sample_2,
R.drawable.sample_3,
R.drawable.sample_4,
R.drawable.sample_5,
R.drawable.sample_6,
R.drawable.sample_7
};
public ImageAdapter(Context c) {
mContext = c;
}
public int getCount() {
return mImageIds.length;
}
public Object getItem(int position) {
return position;
}
public long getItemId(int position) {
return position;
}
public View getView(int position, View convertView,
ViewGroup
parent) {
System.out.println("position:"+ position);
ImageView i = new ImageView(mContext);
i.setImageResource(mImageIds[position]);
i.setLayoutParams(new Gallery.LayoutParams(150,
100));
i.setScaleType(ImageView.ScaleType.FIT_XY);
i.setBackgroundResource(mGalleryItemBackground);
return i;
}
}
Why Gallery calls getView several times??? output:
position: 0
position: 0
position: 0
position: 0
position: 0
position: 0
position: 0
position: 0
if i change image now:
position: 1
position: 1
position: 1
position: 1
position: 1
position: 1
position: 1
position: 1
...
..
..
..
..
and much more
What is happening with Gallery widget
Thanks a lot
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