天气预报模块的实现

最新推荐文章于 2025-10-06 00:06:23 发布

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最新推荐文章于 2025-10-06 00:06:23 发布 · 1.2k 阅读

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本文介绍了实现天气预报模块的过程，包括运行效果图展示，核心代码详解，如WeatherAdapter、WeatherActivity、Weather、HttpUtil和HttpCallbackListener等的代码实现，以及在实际操作中遇到的问题，如key申请错误导致无法显示天气，未导入Google jar包引发的程序错误等。

一、运行效果图

二、核心代码

1.WeatherAdapter的代码：

public class WeatherAdapter extends ArrayAdapter<Weather>{
	private int resourceId;	
	
	public WeatherAdapter(Context context, int textViewResourceId, List<Weather> objects) {
		super(context, textViewResourceId, objects);
		resourceId = textViewResourceId;
	}

	public View getView(int position,View convertView,ViewGroup viewgroup){
		Weather weather = getItem(position);
		ViewHolder viewHolder = null;
		if (convertView == null){
			viewHolder = new ViewHolder();
			convertView = LayoutInflater.from(getContext()).inflate(resourceId, null);
			viewHolder.tvDayOdWeek =  (TextView) convertView.findViewById(R.id.tvDayofWeek);
			viewHolder.tvDate = (TextView) convertView.findViewById(R.id.tvDate);			
			viewHolder.tvTemperature = (TextView) convertView.findViewById(R.id.tvTemperature);
			viewHolder.tvWeather = (TextView) convertView.findViewById(R.id.tvWeather);
			convertView.setTag(viewHolder);
			
			
		}else{
			viewHolder= (ViewHolder) convertView.getTag();
		}
		viewHolder.tvDayOdWeek.setText(weather.getDayOfWeek());
		viewHolder.tvDate.setText(weather.getDate());
		viewHolder.tvTemperature.setText(weather.getTemperature());
		viewHolder.tvWeather.setText(weather.getWeather());
		return convertView;
	}

	private class ViewHolder{
		TextView tvDayOdWeek;
		TextView tvDate;
		TextView tvTemperature;
		TextView tvWeather;
	}
	

}

2.WeatherActivity的核心代码：

public class WeatherActivity extends Activity{

	private EditText etCity;
	private ImageButton btnQuery;
	private ListView lvFutureWeather;
	public static final int SHOW_PESPONSE = 1;
	private List<Weather> data;
	
	
		private void parseWithJSON(String response){
			data = new ArrayList<Weather>();
			JsonParser parser = new JsonParser();
			JsonObject obj = (JsonObject) parser.pa

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