IndexAdapter.java

package hk.reality.stock.view;

import hk.reality.stock.R;
import hk.reality.stock.model.Index;
import hk.reality.utils.PriceFormatter;
import android.content.Context;
import android.graphics.Color;
import android.text.format.DateFormat;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.TextView;

public class IndexAdapter extends ArrayAdapter<Index> {
    private static final String TAG = "IndexAdapter";
    private java.text.DateFormat formatter;

    public IndexAdapter(Context context) {
        super(context, 0);
        formatter = DateFormat.getTimeFormat(context);        
    }

    @Override
    public View getView(int position, View view, ViewGroup parent) {
        View v = view;
        if (v == null) {
            LayoutInflater vi = (LayoutInflater) getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            v = (View) vi.inflate(R.layout.index_item, null);
        }

        Log.d(TAG, "prepare view for indexes");
        // prepare views
        TextView name = (TextView) v.findViewById(R.id.name);       
        TextView price = (TextView) v.findViewById(R.id.price);
        TextView change = (TextView) v.findViewById(R.id.change);
        TextView volume = (TextView) v.findViewById(R.id.volume);
        TextView time = (TextView) v.findViewById(R.id.time);
        
        // set data
        Index index = getItem(position);
        if (index != null) {
            volume.setText("");
            name.setText(index.getName());
            price.setText(PriceFormatter.forPrice(index.getValue().doubleValue()));

            if (index.getUpdatedAt() != null) {
                time.setText(formatter.format(index.getUpdatedAt().getTime()));
            } else {
                time.setText("");
            }
            
            if (index.getChange() != null) {
                change.setText(String.format("%s (%s)", 
                		PriceFormatter.forPrice(index.getChange().doubleValue()), 
                		PriceFormatter.forPercent(index.getChangePercent().doubleValue())));
            } else {
                change.setText("---- (---)");
            }
            
            if (index.getChange() != null && index.getChange().floatValue() > 0) {
                price.setTextColor(Color.rgb(0, 213, 65));
                change.setTextColor(Color.rgb(0, 213, 65));
            } else if (index.getChange() != null && index.getChange().floatValue() < 0) {
                price.setTextColor(Color.rgb(238, 30, 0));
                change.setTextColor(Color.rgb(238, 30, 0));
            } else {
                price.setTextColor(Color.WHITE);
                change.setTextColor(Color.WHITE);
            }

        } else {
            time.setText("");
            volume.setText("---");
            name.setText("");
            price.setText("----");
            change.setText("---- (---)");
        }
        return v;
    }
}