我尝试实现此链接location find
中的代码事实是我想使用网络或GPS获取我的位置(我在网络上测试过)
private Location getCurrentLocation(){
// Acquire a reference to the system Location Manager
LocationManager locationManager = (LocationManager) this.getSystemService(Context.LOCATION_SERVICE);
// Define a listener that responds to location updates
LocationListener locationListener = new LocationListener() {
public void onLocationChanged(Location location) {
// Called when a new location is found by the network location provider.
mLatitude = location.getLatitude();
mLongitude = location.getLongitude();
myGeoPoint = GeoTools.makeGeoPoint(mLatitude, mLongitude);
mapController.animateTo(myGeoPoint);
}
public void onStatusChanged(String provider, int status, Bundle extras) {}
public void onProviderEnabled(String provider) {}
public void onProviderDisabled(String provider) {}
};
// Register the listener with the Location Manager to receive location updates
locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0, 0, locationListener);
String locationProvider = LocationManager.NETWORK_PROVIDER;
// Or use LocationManager.GPS_PROVIDER
Location lastKnownLocation = locationManager.getLastKnownLocation(locationProvider);
if(lastKnownLocation==null){
locationProvider = LocationManager.GPS_PROVIDER;
// Or use LocationManager.GPS_PROVIDER
lastKnownLocation = locationManager.getLastKnownLocation(locationProvider);
}
return lastKnownLocation;
}
如何返回结果:
myLocation = getCurrentLocation();
if(myLocation != null)
{
mLatitude = myLocation.getLatitude();
mLongitude = myLocation.getLongitude();
myGeoPoint = GeoTools.makeGeoPoint(mLatitude, mLongitude);
mapController.animateTo(myGeoPoint);
}else {
mLatitude = 36.859502;
mLongitude = 10.168097;
myGeoPoint = GeoTools.makeGeoPoint(mLatitude, mLongitude);
mapController.animateTo(myGeoPoint);}
这不是我尝试的唯一代码,我在Android 2.2手机上找不到任何结果。
关于如何解决它的任何想法
我在网上检查大部分教程!!
答案 0 :(得分:1)
首先检查您是否添加了以下权限。
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"></uses-permission>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"></uses-permission>
第二件事是你应该花点时间找一下位置信息。你可以使用计时器任务或posDelayed来做。
private Location getCurrentLocation(){
// Acquire a reference to the system Location Manager
LocationManager locationManager = (LocationManager) this.getSystemService(Context.LOCATION_SERVICE);
// Define a listener that responds to location updates
LocationListener locationListener = new LocationListener() {
public void onLocationChanged(Location location) {
// Called when a new location is found by the network location provider.
t.cancel();
mLatitude = location.getLatitude();
mLongitude = location.getLongitude();
myGeoPoint = GeoTools.makeGeoPoint(mLatitude, mLongitude);
mapController.animateTo(myGeoPoint);
}
public void onStatusChanged(String provider, int status, Bundle extras) {}
public void onProviderEnabled(String provider) {}
public void onProviderDisabled(String provider) {}
};
locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0, 0, locationListener);
Location lastKnownLocation;
Timer t = new Timer();
t.schedule(new TimerTask() {
@Override
public void run() {
this.cancel();
lastKnownLocation = locationManager.getLastKnownLocation(locationProvider);
if(lastKnownLocation==null){
locationProvider = LocationManager.GPS_PROVIDER;
// Or use LocationManager.GPS_PROVIDER
lastKnownLocation = locationManager.getLastKnownLocation(locationProvider);
return lastKnownLocation;
}
},30000);
}
它将在30秒后给你结果。
答案 1 :(得分:0)
经过长时间的研究,我很高兴Here:)
希望这会对某人有所帮助。