我正在尝试定位一对经纬度。当没有例外时,它的效果很好。
日志猫:
GLS Failed With Status 20
代码如下:
//TAG GEOCODING METHOD
public Address getAddressForLocation(Context context, Location location) throws IOException {
Address a = null;
try{
if (location == null) {
a=null;
}
double latitude = location.getLatitude();
double longitude = location.getLongitude();
int maxResults = 1;
Geocoder gc = new Geocoder(context, Locale.getDefault());
List<Address> addresses = gc.getFromLocation(latitude, longitude, maxResults);
if (addresses.size() == 1) {
a=addresses.get(0);
} else {
a=null;
}
}catch (Exception e){
Log.w("EXCEPTON!", "Exception Caught in geocode");
a=null;
}
return a;
}
该调用也包含在 try/catch 块中。
@Override//TAG On Location Changed
public void onLocationChanged(Location arg0) {
//SET ALL VALUES
dlat = arg0.getLatitude();
dlon = arg0.getLongitude();
delev = arg0.getAltitude() * 3.2808399;
delev = round(delev, 2);
//GET THE ADDRESS
try {
addy = getAddressForLocation(this,arg0);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
_lastaddy = _addy;
//DISPLAY ALL INFORMATION
_addy = addy.getAddressLine(0);
LONGBOX.setText(String.valueOf(dlon));
LATBOX.setText(String.valueOf(dlat));
if(_addy!=_lastaddy){
ADDRESS.setText(_addy);
}
}
logcat 的其余部分如下。对此的任何帮助都会很棒。我无法捕捉到这个异常,并且盯着这段代码这么久,仍然不知道我做错了什么。
日志猫:
LocationMasfClient reverseGeocode(): GLS failed with status 20
AndroidRuntime Shutting down VM
dalvikvm threadid=1: thread exiting with uncaught exception (group=0x400208b0)
AndroidRunTime FATAL EXCEPTION: main
AndroidRunTime java.lang.NullPointerException