[代码] [Java]代码
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public class WeatherActivity extends Activity {
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private TextView txCity;
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private Button btnSearch;
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private Handler weatherhandler;
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private Dialog progressDialog;
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private Timer timer;
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/** Called when the activity is first created. */
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@Override
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.main);
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timer = new Timer();
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txCity = (TextView)findViewById(R.id.txCity);
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btnSearch = (Button)findViewById(R.id.btnSearch);
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progressDialog = new AlertDialog.Builder(this)
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.setTitle("读取数据中")
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.setMessage("正在加载数据，请稍等")
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.create();
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weatherhandler = new Handler(){
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public void handleMessage(Message msg){
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final String cityName = txCity.getText().toString().trim();
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searchWeather(cityName);
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progressDialog.hide();
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}
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};
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btnSearch.setOnClickListener(new OnClickListener() {
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@Override
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public void onClick(View v) {
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progressDialog.show();
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timer.schedule(new TimerTask() {
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@Override
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public void run() {
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Message msg = new Message();
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msg.setTarget(weatherhandler);
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msg.sendToTarget();
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}
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},100);
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}
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});
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}
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private void searchWeather(String city){
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SAXParserFactory spf = SAXParserFactory.newInstance();
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try {
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SAXParser sp = spf.newSAXParser();
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XMLReader reader = sp.getXMLReader();
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XmlHandler handler = new XmlHandler();
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reader.setContentHandler(handler);
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URL url = new URL("http://www.google.com/ig/api?hl=zh-cn&weather="+URLEncoder.encode(city));
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InputStream is = url.openStream();
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InputStreamReader isr = new InputStreamReader(is, "GBK");
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InputSource source = new InputSource(isr);
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reader.parse(source);
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List<Weather>weatherList = handler.getWeatherList();
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TableLayout table = (TableLayout)findViewById(R.id.table);
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table.removeAllViews();
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for(Weather weather:weatherList){
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TableRow row = new TableRow(this);
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row.setLayoutParams(newLayoutParams(LayoutParams.FILL_PARENT,LayoutParams.WRAP_CONTENT));
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row.setGravity(Gravity.CENTER_VERTICAL);
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ImageView img = new ImageView(this);
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img.setImageDrawable(loadImage(weather.getImageUrl()));
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img.setMinimumHeight(80);
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row.addView(img);
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TextView day = new TextView(this);
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day.setText(weather.getDay());
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day.setGravity(Gravity.CENTER_HORIZONTAL);
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row.addView(day);
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TextView temp = new TextView(this);
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temp.setText(weather.getLowTemp()+"℃-"+weather.getHighTemp()+"℃");
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temp.setGravity(Gravity.CENTER_HORIZONTAL);
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row.addView(temp);
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TextView condition = new TextView(this);
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condition.setText(weather.getCondition());
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condition.setGravity(Gravity.CENTER_HORIZONTAL);
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row.addView(condition);
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table.addView(row);
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}
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} catch (Exception e) {
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e.printStackTrace();
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new AlertDialog.Builder(this)
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.setTitle("解析错误")
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.setMessage("获取天气数据失败，请稍候再试。")
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.setNegativeButton("确定", null)
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.show();
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}
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}
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private Drawable loadImage(String imageUrl) {
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try {
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return Drawable.createFromStream((InputStream) newURL("http://www.google.com/"+imageUrl).getContent(), "test");
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} catch (MalformedURLException e) {
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e.printStackTrace();
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} catch (IOException e) {
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e.printStackTrace();
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}
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return null;
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}
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}
[图片] 未命名.jpg
