package com.example.android.sunshine.app;

import android.content.Context;
import android.database.Cursor;
import android.support.v4.widget.CursorAdapter;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;

/**
 * {@link ForecastAdapter} exposes a list of weather forecasts
 * from a {@link android.database.Cursor} to a {@link android.widget.ListView}.
 */
public class ForecastAdapter extends CursorAdapter {

    private static final int VIEW_TYPE_TODAY = 0;
    private static final int VIEW_TYPE_FUTURE_DAY = 1;
    private static final int VIEW_TYPE_COUNT = 2;

    public ForecastAdapter(Context context, Cursor cursor, int flags) {
        super(context, cursor, flags);
    }

    @Override
    public int getItemViewType(int position) {
        // super.getItemViewType(position);
        return position == 0 ? VIEW_TYPE_TODAY : VIEW_TYPE_FUTURE_DAY;
    }

    @Override
    public int getViewTypeCount() {
        // super.getViewTypeCount();
        return VIEW_TYPE_COUNT;
    }

    // Remember that these views are reused as needed.
    @Override
    public View newView(Context context, Cursor cursor, ViewGroup parent) {
        // Choose the layout type
        int viewType = getItemViewType(cursor.getPosition());
        int layoutId = -1;
        switch (viewType) {
            case VIEW_TYPE_TODAY: {
                layoutId = R.layout.list_item_forecast_today;
                break;
            }
            case VIEW_TYPE_FUTURE_DAY: {
                layoutId = R.layout.list_item_forecast;
                break;
            }
        }
        return LayoutInflater.from(context).inflate(layoutId, parent, false);
    }

    //This is where we fill-in the views with the contents of the cursor.
    @Override
    public void bindView(View view, Context context, Cursor cursor) {
        // Read weather icon id from cursor.
        int weatherId = cursor.getInt(ForecastFragment.COL_WEATHER_ID);

        // Use placeholder image for now.
        ImageView iconView = (ImageView) view.findViewById(R.id.list_item_icon);
        iconView.setImageResource(R.drawable.ic_launcher);

        // Read date from cursor
        long date = cursor.getLong(ForecastFragment.COL_WEATHER_DATE);
        TextView dateView = (TextView) view.findViewById(R.id.list_item_date_textview);
        dateView.setText(Utility.getFriendlyDayString(context, date));

        // Read weather forecast from cursor
        String weatherForecast = cursor.getString(ForecastFragment.COL_WEATHER_DESC);
        TextView forecastView = (TextView) view.findViewById(R.id.list_item_forecast_textview);
        forecastView.setText(weatherForecast);

        boolean isMetric = Utility.isMetric(context);

        // Read high temperature from cursor
        double high = cursor.getFloat(ForecastFragment.COL_WEATHER_MAX_TEMP);
        TextView highView = (TextView) view.findViewById(R.id.list_item_high_textview);
        highView.setText(Utility.formatTemperature(high, isMetric));

        // Read low temperature from cursor
        double low = cursor.getFloat(ForecastFragment.COL_WEATHER_MIN_TEMP);
        TextView lowView = (TextView) view.findViewById(R.id.list_item_low_textview);
        lowView.setText(Utility.formatTemperature(low, isMetric));
    }
}
@@ -1099,63 +1099,8 @@
  %7D%0A%0A
-    // Remember that these views are reused as needed.%0A
     
@@ -1623,22 +1623,27 @@
         
-return
+View view =
  LayoutI
@@ -1698,16 +1698,124 @@
 false);%0A
+        ViewHolder viewHolder = new ViewHolder(view);%0A        view.setTag(viewHolder);%0A        return view;%0A
     %7D%0A%0A 
@@ -2012,24 +2012,84 @@
 rom cursor.%0A
+        ViewHolder viewHolder = (ViewHolder) view.getTag();%0A
         int 
@@ -2203,89 +2203,19 @@
     
-ImageView iconView = (ImageView) view.findViewById(R.id.list_item_icon);%0A        
+viewHolder.
 icon
@@ -2378,96 +2378,19 @@
     
-TextView dateView = (TextView) view.findViewById(R.id.list_item_date_textview);%0A        
+viewHolder.
 date
@@ -2592,112 +2592,30 @@
     
-TextView forecastView = (TextView) view.findViewById(R.id.list_item_forecast_textview);%0A        forecast
+viewHolder.description
 View
@@ -2832,100 +2832,27 @@
     
-TextView highView = (TextView) view.findViewById(R.id.list_item_high_textview);%0A        high
+viewHolder.highTemp
 View
@@ -3038,20 +3038,549 @@
     
-TextView low
+viewHolder.lowTempView.setText(Utility.formatTemperature(low, isMetric));%0A    %7D%0A%0A    /**%0A     * Cache of the children views for a forecast list item.%0A     */%0A    public static class ViewHolder %7B%0A        public final ImageView iconView;%0A        public final TextView dateView;%0A        public final TextView descriptionView;%0A        public final TextView highTempView;%0A        public final TextView lowTempView;%0A%0A        public ViewHolder(View view) %7B%0A            iconView = (ImageView) view.findViewById(R.id.list_item_icon);%0A            date
 View
@@ -3626,19 +3626,20 @@
 st_item_
-low
+date
 _textvie
@@ -3654,66 +3654,275 @@
     
+  
-lowView.setText(Utility.formatTemperature(low, isMetric));
+  descriptionView = (TextView) view.findViewById(R.id.list_item_forecast_textview);%0A            highTempView = (TextView) view.findViewById(R.id.list_item_high_textview);%0A            lowTempView = (TextView) view.findViewById(R.id.list_item_low_textview);%0A        %7D
 %0A   

Implement ViewHolder in ForecastAdapter.