android 天气预报app源码

【实例截图】

【核心代码】

package edu.hfuu.webforecast;

import android.content.Intent;
import android.os.Handler;
import android.os.Message;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.TextView;

import org.xmlpull.v1.XmlPullParser;

import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;

public class MainActivity extends AppCompatActivity implements AdapterView.OnItemClickListener {
    private GridView  gridView;//列表布局
    private List<WeatherInfo> weatherInfos;//显示信息
    private WeatherInfoAdapter adapter;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        gridView=findViewById(R.id.gv_city_list);
        weatherInfos= new ArrayList<>();
        adapter=new WeatherInfoAdapter();
        gridView.setAdapter(adapter);
        requestWeatherInfo("http://flash.weather.com.cn/wmaps/xml/china.xml");
        gridView.setOnItemClickListener(this);
    }
    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
        Intent intent=new Intent(MainActivity.this,DetailActivity.class);
        WeatherInfo weatherInfo=weatherInfos.get(position);
        intent.putExtra("weatherInfo",weatherInfo);
        startActivity(intent);
    }
    public void requestWeatherInfo(final String path){
        new Thread(new Runnable() {
            @Override
            public void run() {
                try {
                    InputStream inputStream=OkHttpUtils.getInputStream(path);
                    weatherInfos= XmlPullParserHelper.parserXml(inputStream,"utf-8");
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        }).start();

    }
    private class WeatherInfoAdapter extends BaseAdapter{
        @Override
        public int getCount() {
            return   weatherInfos.size();
        }

        @Override
        public Object getItem(int i) {
            return null;
        }

        @Override
        public long getItemId(int i) {
            return i;
        }

        @Override
        public View getView(int i, View view, ViewGroup viewGroup) {
            if(view==null){
                view=View.inflate(MainActivity.this,R.layout.base_item,null);
            }
            WeatherInfo weatherInfo=weatherInfos.get(i);
            TextView city=view.findViewById(R.id.tv_city);
            city.setText(weatherInfo.getCity());
            return view;
        }
    }
}