Android 小孙中文天气预报程序.doc

Android 小孙中文天气预报程序2010年09月13日 星期一 12:47首先了解下，Google天气预报的API吧。 /ig/api?&weather=城市名（中文全拼).我发现在模拟器上面返回的结果和在pc上返回的结果不太一样，pc上有中文的，android模拟器上没有的。好了不说别的了。now start。1。建立工程。我取名sbsWeather。结构如下：再写布局文件，这里只是简单的布局，如果想做的漂亮，去看下iphone的布局，可以得到启发。2。写布局。1.2. 3. 8. 13. 19. 25. 3。我们要做的是中文天气预报，可是Google为我们返回的是中文。再有我们得把用户输入的中文转换为拼音再传给Google才可以。现在，需要准备一些工具。编写中文拼音转换类，Cn2En.java。网上好多的。自己随便找一个就可以了。这个不贴代码了。搜Java 中文转拼音 即可。Utils.java 转换Google返回的英文。一对一的转换吧，貌似没别的跟好的办法。另外其中还有个方法是将网络图片转换为android的bitmap对象的。1.2. package com.sbs.weather; 3. import java.io.IOException; 4. import java.io.InputStream; 5. import .HttpURLConnection; 6. import .MalformedURLException; 7. import .URL; 8. import android.graphics.Bitmap; 9. import android.graphics.BitmapFactory; 10. public class Utils 11. public static String week(String enWeek) 12. if (enWeek.equals(Mon) | enWeek.equals(Monday) 13. return 星期一; 14. else if (enWeek.equals(Tue) | enWeek.equals(Tuesday) 15. return 星期二; 16. else if (enWeek.equals(Wed) | enWeek.equals(Wednesday) 17. return 星期三; 18. else if (enWeek.equals(Thu) | enWeek.equals(Thursday) 19. return 星期四; 20. else if (enWeek.equals(Fri) | enWeek.equals(Friday) 21. return 星期五; 22. else if (enWeek.equals(Sat) | enWeek.equals(Saturday) 23. return 星期六; 24. else if (enWeek.equals(Sun) | enWeek.equals(Sunday) 25. return 星期日; 26. return ; 27. 28. public static String weather(String enWeather) 29. if (enWeather.equals(Clear) 30. return 晴; 31. else if (enWeather.equals(Partly Sunny) 32. | enWeather.equals(partly_cloudy) 33. return 多云; 34. else if (enWeather.equals(Chance of Rain) 35. return 晴转雨; 36. else if (enWeather.equals(storm) 37. return 暴雨; 38. else if (enWeather.equals(thunderstorm) 39. return 雷阵雨; 40. else if (enWeather.equals(fog) 41. return 大雾; 42. else if (enWeather.equals(haze) 43. return 有雾; 44. else if (enWeather.equals(rain) 45. return 雨; 46. else if (enWeather.equals(heavyrain) 47. return 大雨; 48. else if (enWeather.equals(lightrain) 49. return 小雨; 50. else if (enWeather.equals(heavyrain) 51. return 大雨; 52. else if (enWeather.equals(snow) 53. return 有雪; 54. / / 还需要补充。 55. return ; 56. 57. public static Bitmap returnBitMap(String imgUrl) 58. URL myImgUrl = null; 59. Bitmap bitmap = null; 60. try 61. myImgUrl = new URL(imgUrl); 62. catch (MalformedURLException e) 63. e.printStackTrace(); 64. 65. try 66. HttpURLConnection conn = (HttpURLConnection) myImgUrl 67. .openConnection(); 68. conn.setDoInput(true); 69. conn.connect(); 70. InputStream is = conn.getInputStream(); 71. bitmap = BitmapFactory.decodeStream(is); 72. is.close(); 73. catch (IOException e) 74. e.printStackTrace(); 75. 76. return bitmap; 77. 78. 4。开始真正的工作，下面的程序通过Google提供的api来获取天气预报信息。1. package com.sbs.weather; 2.3. import java.io.InputStream; 4.5. import javax.xml.parsers.DocumentBuilder; 6. import javax.xml.parsers.DocumentBuilderFactory; 7.8. import org.apache.http.HttpEntity; 9. import org.apache.http.HttpResponse; 10. import org.apache.http.client.methods.HttpGet; 11. import org.apache.http.client.methods.HttpUriRequest; 12. import org.apache.http.impl.client.DefaultHttpClient; 13. import org.apache.http.util.EntityUtils; 14. import org.w3c.dom.Document; 15. import org.w3c.dom.NodeList; 16. import org.xml.sax.InputSource; 17.18. import android.app.Activity; 19. import android.graphics.Bitmap; 20. import android.os.Bundle; 21. import android.os.Handler; 22. import android.os.Message; 23. import android.util.Log; 24. import android.view.View; 25. import android.widget.Button; 26. import android.widget.EditText; 27. import android.widget.ImageView; 28. import android.widget.TextView; 29.30. public class Weather extends Activity 31.32. public EditText ETplace; 33. public TextView TvPlace; 34. public Button query; 35. public TextView placeName; 36. public ImageView imView; 37.38. /* Called when the activity is first created. */ 39. Override 40. public void onCreate(Bundle savedInstanceState) 41. super.onCreate(savedInstanceState); 42. setContentView(R.layout.main); 43.44. ETplace = (EditText)findViewById(R.id.place); 45. query = (Button)findViewById(R.id.query); 46. imView = (ImageView)findViewById(R.id.myImageView); 47. placeName = (TextView)findViewById(R.id.placeName); 48.49. query.setOnClickListener(new Button.OnClickListener() 50. public void onClick(View v) 51. try 52. TvPlace = (TextView)findViewById(R.id.tvPlace); 53.54. String place = CntoEn.getFullSpell(ETplace.getText().toString(); 55. placeName.setText(place); 56. String weather = ; 57. String url = /ig/api?&weather=+place; 58. DefaultHttpClient client = new DefaultHttpClient(); 59. HttpUriRequest req = new HttpGet(url); 60. HttpResponse resp = client.execute(req); 61.62. /String strResult = EntityUtils.toString(resp.getEntity(); 63. /Log.i(weather-, strResult); 64. /一华氏度等于9/5摄氏度数值+32 65.66. HttpEntity ent = resp.getEntity(); 67. InputStream stream = ent.getContent(); 68.69. DocumentBuilder b = DocumentBuilderFactory.newInstance() 70. .newDocumentBuilder(); 71. Document d = b.parse(new InputSource(stream); 72. NodeList n = d.getElementsByTagName(forecast_conditions); 73.74. / 获得图片url 当天的。 75. String imgUrl = ; 76. imgUrl += n.item(0).getChildNodes().item(3).getAttributes().item(0).getNodeValue(); 77. imView.setImageB