http://www.oschina.net/code/snippet_149945_6389
[代码] [Java]代码
001 public class WeatherActivity extends Activity {
002 private TextView txCity;
003 private Button btnSearch;
004 private Handler weatherhandler;
005 private Dialog progressDialog;
006 private Timer timer;
007 /** Called when the activity is first created. */
008 @Override
009 public void onCreate(Bundle savedInstanceState) {
010 super.onCreate(savedInstanceState);
011 setContentView(R.layout.main);
012 timer = new Timer();
013 txCity = (TextView)findViewById(R.id.txCity);
014 btnSearch = (Button)findViewById(R.id.btnSearch);
015 progressDialog = new AlertDialog.Builder(this)
016 .setTitle("读取数据中")
017 .setMessage("正在加载数据，请稍等")
018 .create();
019
020 weatherhandler = new Handler(){
021 public void handleMessage(Message msg){
022 final String cityName = txCity.getText().toString().trim();
023 searchWeather(cityName);
024 progressDialog.hide();
025 }
026 };
027
028 btnSearch.setOnClickListener(new OnClickListener() {
029
030 @Override
031 public void onClick(View v) {
032 progressDialog.show();
033 timer.schedule(new TimerTask() {
034 @Override
035 public void run() {
036 Message msg = new Message();
037 msg.setTarget(weatherhandler);
038 msg.sendToTarget();
039 }
040 },100);
041 }
042 });
043 }
044 private void searchWeather(String city){
045 SAXParserFactory spf = SAXParserFactory.newInstance();
046 try {
047 SAXParser sp = spf.newSAXParser();
048 XMLReader reader = sp.getXMLReader();
049 XmlHandler handler = new XmlHandler();
050 reader.setContentHandler(handler);
051 URL url = new URL("http://www.google.com/ig/api?hl=zh-cn&weather="+URLEncoder.encode(city));
052 InputStream is = url.openStream();
053 InputStreamReader isr = new InputStreamReader(is, "GBK");
054 InputSource source = new InputSource(isr);
055 reader.parse(source);
056 List<Weather>weatherList = handler.getWeatherList();
057 TableLayout table = (TableLayout)findViewById(R.id.table);
058 table.removeAllViews();
059 for(Weather weather:weatherList){
060 TableRow row = new TableRow(this);
061 row.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT,LayoutParams.WRAP_CONTENT));
062 row.setGravity(Gravity.CENTER_VERTICAL);
063 ImageView img = new ImageView(this);
064 img.setImageDrawable(loadImage(weather.getImageUrl()));
065 img.setMinimumHeight(80);
066 row.addView(img);
067 TextView day = new TextView(this);
068 day.setText(weather.getDay());
069 day.setGravity(Gravity.CENTER_HORIZONTAL);
070 row.addView(day);
071 TextView temp = new TextView(this);
072 temp.setText(weather.getLowTemp()+"℃-"+weather.getHighTemp()+"℃");
073 temp.setGravity(Gravity.CENTER_HORIZONTAL);
074 row.addView(temp);
075 TextView condition = new TextView(this);
076 condition.setText(weather.getCondition());
077 condition.setGravity(Gravity.CENTER_HORIZONTAL);
078 row.addView(condition);
079 table.addView(row);
080 }
081 } catch (Exception e) {
082 e.printStackTrace();
083 new AlertDialog.Builder(this)
084 .setTitle("解析错误")
085 .setMessage("获取天气数据失败，请稍候再试。")
086 .setNegativeButton("确定", null)
087 .show();
088 }
089
090 }
091 private Drawable loadImage(String imageUrl) {
092 try {
093 return Drawable.createFromStream((InputStream) new URL("http://www.google.com/"+imageUrl).getContent(), "test");
094 } catch (MalformedURLException e) {
095 e.printStackTrace();
096 } catch (IOException e) {
097 e.printStackTrace();
098 }
099 return null;
100 }
101 }