ボタンをクリックして現在地を更新しようとしています。位置情報は、GPSまたはセルタワーのいずれか利用可能な方を介して取得できます。私の問題は、「ロード画面」が表示されないことです。座標がゼロのままで、何かが即座に現れたり閉じたりするように見えることを私は知っています。誰かが私を助けることができます-私が下で間違っていることは何ですか？
場所は更新されず、ロード画面も表示されません。ロード画面がなく、「更新ボタン」を複数回クリックすることで、場所を取得できます。以下は、「更新ボタン」のクリックを処理するための私のコードです。
FieldChangeListener refreshImgListener = new FieldChangeListener() {
public void fieldChanged(Field field, int context)
{
Thread backgroundWorker = new Thread(new Runnable() {
public void run() {
refreshCoordinates();
}
});
busyDialog.setEscapeEnabled(false);
busyDialog.show();
backgroundWorker.start();
}
};
そして私のrefreshCoordinates()方法は以下の通りです：
public void refreshCoordinates() {
do
{
getLatitude(handleeGPS.latitude);
getLongitude(handleeGPS.longitude);
} while ((longi == "0.0" || lati == "0.0") || (longi.length() == 0 || lati.length()==0));
UiApplication.getUiApplication().invokeLater( new Runnable()
{
public void run ()
{
lblLatitude.setText(lati);
lblLongitude.setText(longi);
busyDialog.cancel();
}
} );
}
public static String getLatitude(double value)
{
lati= Double.toString(value);
return lati;
}
public static String getLongitude(double value)
{
longi= Double.toString(value);
return longi;
}
緯度と経度の値を返すクラス：
public class handleeGPS{
static GPSThread gpsThread;
public static double latitude;
public static double longitude;
public handleeGPS(){
gpsThread = new GPSThread();
gpsThread.start();
}
private static class GPSThread extends Thread{
public void run() {
Criteria myCriteria = new Criteria();
myCriteria.setCostAllowed(false);
int m_bbHandle = CodeModuleManager.getModuleHandle("net_rim_bb_lbs");
if(m_bbHandle>0){
try {
int cellID = GPRSInfo.getCellInfo().getCellId();
int lac = GPRSInfo.getCellInfo().getLAC();
String urlString2 = "http://www.google.com/glm/mmap";
// Open a connection to Google Maps API
ConnectionFactory connFact = new ConnectionFactory();
ConnectionDescriptor connDesc;
connDesc = connFact.getConnection(urlString2);
HttpConnection httpConn2;
httpConn2 = (HttpConnection)connDesc.getConnection();
httpConn2.setRequestMethod("POST");
// Write some custom data to Google Maps API
OutputStream outputStream2 = httpConn2.openOutputStream();//getOutputStream();
WriteDataGoogleMaps(outputStream2, cellID, lac);
// Get the response
InputStream inputStream2 = httpConn2.openInputStream();//getInputStream();
DataInputStream dataInputStream2 = new DataInputStream(inputStream2);
// Interpret the response obtained
dataInputStream2.readShort();
dataInputStream2.readByte();
int code = dataInputStream2.readInt();
//Dialog.alert(code+"");
if (code == 0) {
latitude= dataInputStream2.readInt() / 1000000D;
longitude=dataInputStream2.readInt() / 1000000D;
//Dialog.alert(latitude+"-----"+longitude);
dataInputStream2.readInt();
dataInputStream2.readInt();
dataInputStream2.readUTF();
} else {
System.out.println("Error obtaining Cell Id ");
}
outputStream2.close();
inputStream2.close();
} catch (Exception e) {
System.out.println("Error: " + e.getMessage());
}
} else {
try {
LocationProvider myLocationProvider = LocationProvider.getInstance(myCriteria);
try {
Location myLocation = myLocationProvider.getLocation(300);
latitude = myLocation.getQualifiedCoordinates().getLatitude();
longitude = myLocation.getQualifiedCoordinates().getLongitude();
if(latitude==0.0 && longitude==0.0){
try {
int cellID = GPRSInfo.getCellInfo().getCellId();
int lac = GPRSInfo.getCellInfo().getLAC();
String urlString2 = "http://www.google.com/glm/mmap";
// Open a connection to Google Maps API
ConnectionFactory connFact = new ConnectionFactory();
ConnectionDescriptor connDesc;
connDesc = connFact.getConnection(urlString2);
HttpConnection httpConn2;
httpConn2 = (HttpConnection)connDesc.getConnection();
httpConn2.setRequestMethod("POST");
// Write some custom data to Google Maps API
OutputStream outputStream2 = httpConn2.openOutputStream();
//getOutputStream();
WriteDataGoogleMaps(outputStream2, cellID, lac);
// Get the response
InputStream inputStream2 = httpConn2.openInputStream();
//getInputStream();
DataInputStream dataInputStream2 = new DataInputStream(inputStream2);
// Interpret the response obtained
dataInputStream2.readShort();
dataInputStream2.readByte();
int code = dataInputStream2.readInt();
//Dialog.alert(code+"");
if (code == 0) {
latitude= dataInputStream2.readInt() / 1000000D;
longitude=dataInputStream2.readInt() / 1000000D;
//Dialog.alert(latitude+"-----"+longitude);
dataInputStream2.readInt();
dataInputStream2.readInt();
dataInputStream2.readUTF();
} else {
System.out.println("Error obtaining Cell Id ");
}
outputStream2.close();
inputStream2.close();
} catch (Exception e) {
System.out.println("Error: " + e.getMessage());
}
}
}
catch ( InterruptedException iex ) {
return;
}
catch ( LocationException lex ) {
return;
}
} catch ( LocationException lex ) {
return;
}
}
return;
}
}
private static void WriteDataGoogleMaps(OutputStream out, int cellID, int lac)
throws IOException {
DataOutputStream dataOutputStream = new DataOutputStream(out);
dataOutputStream.writeShort(21);
dataOutputStream.writeLong(0);
dataOutputStream.writeUTF("en");
dataOutputStream.writeUTF("Android");
dataOutputStream.writeUTF("1.0");
dataOutputStream.writeUTF("Web");
dataOutputStream.writeByte(27);
dataOutputStream.writeInt(0);
dataOutputStream.writeInt(0);
dataOutputStream.writeInt(3);
dataOutputStream.writeUTF("");
dataOutputStream.writeInt(cellID);
dataOutputStream.writeInt(lac);
dataOutputStream.writeInt(0);
dataOutputStream.writeInt(0);
dataOutputStream.writeInt(0);
dataOutputStream.writeInt(0);
dataOutputStream.flush();
}
}