Difference between getView & getDropDownView in SpinnerAdapter

Question

When you implement SpinnerAdapter you get getDropDownView, how does it differ from getView which you have when you need to extend BaseAdapter.

Answer 1

We can use SpinnerAdapter as this:

public class FolderSpinnerAdpater extends BaseAdapter implements SpinnerAdapter {
@Override
public int getCount() {
    return 0;
}

@Override
public Object getItem(int position) {
    return null;
}

@Override
public long getItemId(int position) {
    return 0;
}

@Override
public View getView(int position, View convertView, ViewGroup parent) {
    return null;
}
}

In BaseAdapter.java

public View getDropDownView(int position, View convertView, ViewGroup parent) {
    return getView(position, convertView, parent);
}

Override getView() and getDropDownView()，return different view,you will find the difference.