Difference between getView & getDropDownView in SpinnerAdapter

If we look at the following code, we have name and value array in getView and getDropDownView.

private void initView() {    SpinnerDropDownAdapter sddadapter = new SpinnerDropDownAdapter(this);    ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,            android.R.layout.simple_spinner_item, sddadapter.name);    Spinner getViewSP = (Spinner) findViewById(R.id.getview_sp);    getViewSP.setAdapter(adapter);    Spinner getViewWDropDownSP = (Spinner) findViewById(R.id.getview_w_drop_down_sp);    getViewWDropDownSP.setAdapter(sddadapter);}static class SpinnerDropDownAdapter extends BaseAdapter implements        SpinnerAdapter {    Context context;    SpinnerDropDownAdapter(Context ctx) {        context = ctx;    }    String[] name = { " One", " Two", " Three", " Four", " Five", " Six",            " Seven", " Eight" };    String[] value = { " 1", " 2", " 3", " 4", " 5", " 6", " 7", " 8" };    @Override    public int getCount() {        return name.length;    }    @Override    public String getItem(int pos) {        // TODO Auto-generated method stub        return name[pos];    }    @Override    public long getItemId(int arg0) {        // TODO Auto-generated method stub        return 0;    }    @Override    public View getView(int position, View convertView, ViewGroup parent) {        TextView text = new TextView(context);        text.setTextColor(Color.BLACK);        text.setText(name[position]);        return text;    }    @Override    public View getDropDownView(int position, View convertView,            ViewGroup parent) {        TextView text = new TextView(context);        text.setTextColor(Color.BLACK);        text.setText(value[position]);        return text;    }}

If getDropDownView method is not implemented, the drop down pop up will get the view from getView. Thus, it will only show name.

When both getView and getDropDownView is implemented, the former getting name and the latter getting value, the spinner at rest will get name from getview and the drop down pop up will get value.

The accepted answer seems a little complicated, so for simplicity

• getView - the value shown on the spinner before the user presses the spinner, where each value view can be adjusted with the convertView parameter

• getDropDownView - list of values the user can select after the user presses the spinner, where each value in the list can be adapted with the convertView parameter

getView and getDropDownView can show different layout.

I create a Spinner and use class ImageTextAdapter extends ArrayAdapter<String> as an adapter. I override getView so that it can show both ImageView and TextView. However, I don't override getDropDownView.

This is a screenshot before the spinner is pressed

and after the spinner is pressed.

I initialize the spinner with the following code.

String[] spinnerTexts = {"Tanzania", "Thailand"};int[] spinnerImages = {R.drawable.tanzania, R.drawable.thailand};ArrayAdapter<String> adapter = new ImageTextAdapter(this, spinnerTexts, spinnerImages);Spinner spinner = (Spinner) findViewById(R.id.spinner);spinner.setAdapter(adapter);

Here is ImageTextAdapter.java

public class ImageTextAdapter extends ArrayAdapter<String> {    int[] images;    public ImageTextAdapter(Context ctx, String[] texts, int[] images) {        super(ctx, android.R.layout.simple_spinner_item, texts);        this.images = images;    }    @Override    public View getView(int position, View convertView, ViewGroup parent) {        View row = getLayoutInflater().inflate(R.layout.row, parent, false);        TextView textView = (TextView) row.findViewById(R.id.textView);        textView.setText(getItem(position));        ImageView imageView = (ImageView) row.findViewById(R.id.imageView);        imageView.setImageResource(images[position]);        return row;    }}