Android Open Source - AndroidWeatherInformation Overview Adapter

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License

The source code is released under:

# Legal information ## Weather Information **Weather Information** is licensed under the Apache License, Version 2.0. The full text of the license can be found in: - LICENSE This license applies...

Java Source Code

/**
 * Copyright 2014 Gustavo Martin Morcuende
 *//from  w ww. j av a  2s .c  om
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package name.gumartinm.weather.information.fragment.overview;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.TextView;

import name.gumartinm.weather.information.R;

public class OverviewAdapter extends ArrayAdapter<OverviewEntry> {
    private final int resource;

    public OverviewAdapter(final Context context, final int resource) {
        super(context, 0);

        this.resource = resource;
    }

    @Override
    public View getView(final int position, final View convertView,
            final ViewGroup parent) {

        // We need to get the best view (re-used if possible) and then
        // retrieve its corresponding ViewHolder, which optimizes lookup
        // efficiency
        final View view = this.getWorkingView(convertView);
        final ViewHolder viewHolder = this.getViewHolder(view);
        final OverviewEntry entry = this.getItem(position);


        // Setting date
        viewHolder.dateNameView.setText(entry.getDateName());
        viewHolder.dateNumberView.setText(entry.getDateNumber());

        // Setting temperature max/min
        viewHolder.temperatureMaxView.setText(entry.getMaxTemp());
        viewHolder.temperatureMinView.setText(entry.getMinTemp());

        // Set image view
        viewHolder.pictureView.setImageBitmap(entry.getPicture());


        return view;
    }

    private View getWorkingView(final View convertView) {
        // The workingView is basically just the convertView re-used if possible
        // or inflated new if not possible
        View workingView = null;

        if(null == convertView) {
            final Context context = this.getContext();
            final LayoutInflater inflater = (LayoutInflater)context.getSystemService
                    (Context.LAYOUT_INFLATER_SERVICE);

            workingView = inflater.inflate(this.resource, null);
        } else {
            workingView = convertView;
        }

        return workingView;
    }

    private ViewHolder getViewHolder(final View workingView) {
        // The viewHolder allows us to avoid re-looking up view references
        // Since views are recycled, these references will never change
        final Object tag = workingView.getTag();
        ViewHolder viewHolder = null;


        if((null == tag) || !(tag instanceof ViewHolder)) {
            viewHolder = new ViewHolder();

            viewHolder.dateNameView = (TextView) workingView
                    .findViewById(R.id.weather_main_entry_date_name);
            viewHolder.dateNumberView = (TextView) workingView
                    .findViewById(R.id.weather_main_entry_date_number);
            viewHolder.temperatureMaxView = (TextView) workingView
                    .findViewById(R.id.weather_main_entry_temperature_max);
            viewHolder.temperatureMinView = (TextView) workingView
                    .findViewById(R.id.weather_main_entry_temperature_min);
            viewHolder.pictureView = (ImageView) workingView
                    .findViewById(R.id.weather_main_entry_image);

            workingView.setTag(viewHolder);

        } else {
            viewHolder = (ViewHolder) tag;
        }

        return viewHolder;
    }

    /**
     * ViewHolder allows us to avoid re-looking up view references
     * Since views are recycled, these references will never change
     */
    private static class ViewHolder {
        public TextView dateNameView;
        public TextView dateNumberView;
        public TextView temperatureMaxView;
        public TextView temperatureMinView;
        public ImageView pictureView;
    }

}

Java Source Code List

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