通过google API获取天气信息代码,Java代码库,德仔网

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【Java】通过google API获取天气信息
作者:Dezai.CN / 发布于2013/7/1/ 582

	public class WeatherActivity extends Activity {
	 private TextView txCity;
	 private Button btnSearch;
	 private Handler weatherhandler;
	 private Dialog progressDialog;
	 private Timer timer;
	 /** Called when the activity is first created. */
	 @Override
	 public void onCreate(Bundle savedInstanceState) {
	 super.onCreate(savedInstanceState);
	 setContentView(R.layout.main);
	 timer = new Timer();
	 txCity = (TextView)findViewById(R.id.txCity);
	 btnSearch = (Button)findViewById(R.id.btnSearch);
	 progressDialog = new AlertDialog.Builder(this)
	 .setTitle("读取数据中")
	 .setMessage("正在加载数据，请稍等")
	 .create();

	 weatherhandler = new Handler(){
	 public void handleMessage(Message msg){
	 final String cityName = txCity.getText().toString().trim();
	 searchWeather(cityName);
	 progressDialog.hide();
	 }
	 };

	 btnSearch.setOnClickListener(new OnClickListener() {

	 @Override
	 public void onClick(View v) {
	 progressDialog.show();
	 timer.schedule(new TimerTask() {
	 @Override
	 public void run() {
	 Message msg = new Message();
	 msg.setTarget(weatherhandler);
	 msg.sendToTarget();
	 }
	 },100);
	 }
	 });
	 }
	 private void searchWeather(String city){
	 SAXParserFactory spf = SAXParserFactory.newInstance();
	 try {
	 SAXParser sp = spf.newSAXParser();
	 XMLReader reader = sp.getXMLReader();
	 XmlHandler handler = new XmlHandler();
	 reader.setContentHandler(handler);
	 URL url = new URL("http://www.google.com/ig/api?hl=zh-cn&weather="+URLEncoder.encode(city));
	 InputStream is = url.openStream();
	 InputStreamReader isr = new InputStreamReader(is, "GBK");
	 InputSource source = new InputSource(isr);
	 reader.parse(source);
	 List<Weather>weatherList = handler.getWeatherList();
	 TableLayout table = (TableLayout)findViewById(R.id.table);
	 table.removeAllViews();
	 for(Weather weather:weatherList){
	 TableRow row = new TableRow(this);
	 row.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT,LayoutParams.WRAP_CONTENT));
	 row.setGravity(Gravity.CENTER_VERTICAL);
	 ImageView img = new ImageView(this);
	 img.setImageDrawable(loadImage(weather.getImageUrl()));
	 img.setMinimumHeight(80);
	 row.addView(img);
	 TextView day = new TextView(this);
	 day.setText(weather.getDay());
	 day.setGravity(Gravity.CENTER_HORIZONTAL);
	 row.addView(day);
	 TextView temp = new TextView(this);
	 temp.setText(weather.getLowTemp()+"℃-"+weather.getHighTemp()+"℃");
	 temp.setGravity(Gravity.CENTER_HORIZONTAL);
	 row.addView(temp);
	 TextView condition = new TextView(this);
	 condition.setText(weather.getCondition());
	 condition.setGravity(Gravity.CENTER_HORIZONTAL);
	 row.addView(condition);
	 table.addView(row);
	 }
	 } catch (Exception e) {
	 e.printStackTrace();
	 new AlertDialog.Builder(this)
	 .setTitle("解析错误")
	 .setMessage("获取天气数据失败，请稍候再试。")
	 .setNegativeButton("确定", null)
	 .show();
	 }

	 }
	 private Drawable loadImage(String imageUrl) {
	 try {
	 return Drawable.createFromStream((InputStream) new URL("http://www.google.com/"+imageUrl).getContent(), "test");
	 } catch (MalformedURLException e) {
	 e.printStackTrace();
	 } catch (IOException e) {
	 e.printStackTrace();
	 }
	 return null;
	 }
	}
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　I获取天气信息　
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