OnLocationChanged()
不會調用,雖然requestLocationUpdates被添加,所以,地圖不顯示它的當前位置。
地圖始終顯示其默認模擬位置。請建議解決此問題。我已經在清單文件中添加了所有必要的權限。
注意:我不想使用getLastKnownLocation的最後位置,而是我想要當前位置。我等待設備獲得修復,有時GPS需要比平時更多的時間,但仍然沒有改進。我也用這臺設備走了近10公里。 :-)。
這是我使用的代碼。OnLocationChanged不叫
public class TestingmapActivity extends MapActivity implements LocationListener {
private MapController myMapController;
private MapView mapView;
private LocationManager myLocationManager;
private double m_dLati = 12.913469, m_dLongi = 77.609761;
String provider;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
myLocationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
mapView = (MapView) findViewById(R.id.mapview);
myMapController = mapView.getController();
provider = LocationManager.GPS_PROVIDER;
mapView.setBuiltInZoomControls(true);
mapView.setStreetView(true);
myMapController.setZoom(14); // Zoon 1 is world view
myLocationManager.requestLocationUpdates(provider, 0, 0,this);
setMockLocation(m_dLati, m_dLongi, 500);
}
@Override
protected void onResume() {
startListening();
super.onResume();
}
@Override
protected void onPause() {
stopListening();
super.onResume();
}
@Override
protected void onStop() {
stopListening();
super.onStop();
}
private void startListening() {
if (myLocationManager != null) {
myLocationManager.requestLocationUpdates(
LocationManager.GPS_PROVIDER, 0, 0, this);
}
}
private void stopListening() {
if (myLocationManager != null)
myLocationManager.removeUpdates(this);
}
@Override
protected boolean isRouteDisplayed() {
// TODO Auto-generated method stub
return false;
}
private void setMockLocation(double latitude, double longitude,
float accuracy) {
Log.v("", "provider name= " + provider);
myLocationManager.addTestProvider(provider, "requiresNetwork" == "",
"requiresSatellite" == "", "requiresCell" == "",
"hasMonetaryCost" == "", "supportsAltitude" == "",
"supportsSpeed" == "", "supportsBearing" == "",
android.location.Criteria.POWER_LOW,
android.location.Criteria.ACCURACY_FINE);
Location newLocation = new Location(provider);
newLocation.setLatitude(latitude);
newLocation.setLongitude(longitude);
newLocation.setAccuracy(accuracy);
Toast.makeText(
getApplicationContext(),
"Mock: New Latitude = " + newLocation.getLatitude()
+ " New Longitude = " + newLocation.getLongitude(),
Toast.LENGTH_LONG).show();
myLocationManager.setTestProviderEnabled(provider, true);
myLocationManager.setTestProviderStatus(provider,
LocationProvider.AVAILABLE, null, System.currentTimeMillis());
myLocationManager.setTestProviderLocation(provider, newLocation);
}
@Override
public void onLocationChanged(Location location) {
Log.v("LocationListener", "onLocationChanged " + location.getLatitude()
+ " , " + location.getLongitude());
int lat = (int) (location.getLatitude() * 1E6);
int lng = (int) (location.getLongitude() * 1E6);
GeoPoint point = new GeoPoint(lat, lng);
myMapController.animateTo(point);
}
@Override
public void onProviderDisabled(String provider) {}
@Override
public void onProviderEnabled(String provider) {}
@Override
public void onStatusChanged(String provider, int status, Bundle extras) {}
}
清單權限:
<uses-permission android:name="android.permission.ACCESS_GPS" />
<uses-permission android:name="android.permission.ACCESS_ASSISTED_GPS" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_MOCK_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.LOCATION" />
感謝, Biplab
接受最後一個問題的答案該怎麼辦? – user370305 2012-04-13 05:14:51
對不起,我不知道。我爲最後一個問題標記了接受答案滴答聲按鈕。感謝你的回答。 – 2012-04-13 05:21:50
你在設備上檢查它?你在外面測試嗎? – 2012-04-13 05:25:17