在Blackberry 5.0中通过cellID获取位置

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  1. public void cellID() {
  2.  
  3. 			int cellID = GPRSInfo.getCellInfo().getCellId();
  4. 			int lac = GPRSInfo.getCellInfo().getLAC();
  5.  
  6. 			try {
  7. 				String urlString2 = "http://www.google.com/glm/mmap";
  8.  
  9. 				/* Open a connection to Google Maps API */
  10. 				ConnectionFactory connFact = new ConnectionFactory();
  11. 				ConnectionDescriptor connDesc;
  12. 		        connDesc = connFact.getConnection(urlString2);
  13.  
  14. 		        HttpConnection httpConn2;
  15. 		        httpConn2 = (HttpConnection)connDesc.getConnection();
  16. 				httpConn2.setRequestMethod("POST");
  17.  
  18. 				/* Write some custom data to Google Maps API */
  19. 				OutputStream outputStream2 = httpConn2.openOutputStream();//getOutputStream();
  20. 				WriteDataGoogleMaps(outputStream2, cellID, lac);
  21.  
  22. 				/* Get the response */ 
  23. 				InputStream inputStream2 = httpConn2.openInputStream();//getInputStream();
  24. 				DataInputStream dataInputStream2 = new DataInputStream(inputStream2);
  25.  
  26. 				/* Interpret the response obtained */
  27. 				dataInputStream2.readShort();
  28. 				dataInputStream2.readByte();
  29.  
  30. 				int code = dataInputStream2.readInt();
  31.  
  32. 				if (code == 0) {
  33. 					latitude = (double) dataInputStream2.readInt() / 1000000D;
  34. 					longitude = (double) dataInputStream2.readInt() / 1000000D;
  35.  
  36. 					userLocation = new Coordinates(latitude,longitude,0);
  37.  
  38. 					dataInputStream2.readInt();
  39. 					dataInputStream2.readInt();
  40. 					dataInputStream2.readUTF();
  41.  
  42. 				} else {
  43. 					System.out.println("Error obtaining Cell Id ");
  44. 				}
  45. 				outputStream2.close();
  46. 				inputStream2.close();
  47. 			} catch (Exception e) {
  48. 				System.out.println("Error: " + e.getMessage());
  49. 			}
  50. 		}
  51.  
  52. 	 	/**
  53. 		 * Used to make the request to Google.
  54. 		 */
  55. 		private void WriteDataGoogleMaps(OutputStream out, int cellID, int lac)
  56. 				throws IOException {
  57. 			DataOutputStream dataOutputStream = new DataOutputStream(out);
  58. 			dataOutputStream.writeShort(21);
  59. 			dataOutputStream.writeLong(0);
  60. 			dataOutputStream.writeUTF("en");
  61. 			dataOutputStream.writeUTF("android");
  62. 			dataOutputStream.writeUTF("1.0");
  63. 			dataOutputStream.writeUTF("Web");
  64. 			dataOutputStream.writeByte(27);
  65. 			dataOutputStream.writeInt(0);
  66. 			dataOutputStream.writeInt(0);
  67. 			dataOutputStream.writeInt(3);
  68. 			dataOutputStream.writeUTF("");
  69.  
  70. 			dataOutputStream.writeInt(cellID);
  71. 			dataOutputStream.writeInt(lac);
  72.  
  73. 			dataOutputStream.writeInt(0);
  74. 			dataOutputStream.writeInt(0);
  75. 			dataOutputStream.writeInt(0);
  76. 			dataOutputStream.writeInt(0);
  77. 			dataOutputStream.flush();
  78. 		}

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