在BlackBerry上获取GPS位置
我无法使用此函数读取位置。当我尝试获取位置信息时,它总是返回高度0,经度0在BlackBerry上获取GPS位置,blackberry,Blackberry,我无法使用此函数读取位置。当我尝试获取位置信息时,它总是返回高度0,经度0 void getirGps(){ Criteria myCriteria = new Criteria(); myCriteria.setCostAllowed(false); try { LocationProvider myLocationProvider = LocationProvid
void getirGps(){
Criteria myCriteria = new Criteria();
myCriteria.setCostAllowed(false);
try
{
LocationProvider myLocationProvider =
LocationProvider.getInstance(myCriteria);
try
{
Location myLocation = myLocationProvider.getLocation(300);
seTLatitude(myLocation.getQualifiedCoordinates().getLatitude());// sunlarıda bir public statıc dene..
seTLongitude(myLocation.getQualifiedCoordinates().getLongitude());
Dialog.alert("latitude = "+GPSThread.latitude +" longi"+GPSThread.longitude);
velocity = myLocation.getSpeed();
heading = myLocation.getCourse();
timeStamp = myLocation.getTimestamp();
nmeaString = myLocation.getExtraInfo
("application/X-jsr179-location-nmea");
}
catch ( InterruptedException iex )
{
Dialog.alert("InterruptedException");
return;
}
catch ( LocationException lex )
{
Dialog.alert("LocationException lex");
return;
}
}
catch ( LocationException lex )
{
Dialog.alert("LocationException lex2");
return;
}
}
public void doThis(){
MapView mapView = new MapView();
mapView.setLatitude( (int) Threads.latitude);//39.9208, Longitude = 32.8541
mapView.setLongitude((int) Threads.longitude);
mapView.setZoom(10);
MapsArguments mapsArgs = new MapsArguments(mapView);
Invoke.invokeApplication(Invoke.APP_TYPE_MAPS, mapsArgs);
Dialog.alert("latitude = "+Threads.latitude +" longi"+Threads.longitude);
确保设备上的已启用。当我在模拟器中尝试我的应用程序时,我会更改菜单上的位置信息,gps定位标记。我假设您担心在doThis()中弹出的对话框显示的是零值。但是,您还没有包含足够的代码来计算这些值是如何从LocationProvider到doThis()方法的。我建议您进一步细分您的问题-在LocationProvider附近添加一些打印输出,查看它返回的值,就在它返回时。我为它做了所有必要的测试。一切正常,除了要求回答。