Android googleMap.getMyLocation(); 无法获取当前位置
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googleMap.getMyLocation(); cannot get current location
提问by user3506223
i want to make a program to calculate the distance between some places to my current location, but my googleMap.getMyLocation(); doesnt work properly.
我想制作一个程序来计算一些地方到我当前位置的距离，但是我的 googleMap.getMyLocation(); 不能正常工作。
googleMap = ((MapFragment) getFragmentManager().findFragmentById(R.id.map)).getMap();
googleMap.setMyLocationEnabled(true);
googleMap.getUiSettings().setCompassEnabled(false);
mylocation = googleMap.getMyLocation();
direction = new GMapV2Direction();
LatLng from, to;
from = new LatLng(-7.26071409, 112.80674726);
for(int i=0; i<lat.length; i++){
to = new LatLng(lat[i], lon[i]);
doc = direksi.getDocument(from, to, GMapV2Direction.MODE_DRIVING);
distance[i] = (double)direction.getDistanceValue(doc) / 1000;
}
i saved the latitude and longitude of some places in lat[] and lon[]. LatLng 'from' is mylocation and 'to' is my destination places. the problem appear when i change
我在 lat[] 和 lon[] 中保存了一些地方的纬度和经度。LatLng 'from' 是我的位置，'to' 是我的目的地。当我改变时出现问题
from = new LatLng(-7.26071409, 112.80674726);
to
from = new LatLng(mylocation.getLatitude(), mylocation.getLongitude());
i want to do the calculation without opening the googlemaps. the google maps will appear when i touch the map button as pop up window. so the calculation will happen without opening googlemap
我想在不打开谷歌地图的情况下进行计算。当我触摸地图按钮作为弹出窗口时，谷歌地图将出现。所以计算将在不打开 googlemap 的情况下发生
please help me
请帮我
回答by Android_coder
Try this...I hope this will be help to you
试试这个...我希望这对你有帮助
LocationManager locationManager = (LocationManager)
getSystemService(Context.LOCATION_SERVICE);
Criteria criteria = new Criteria();
Location location = locationManager.getLastKnownLocation(locationManager
.getBestProvider(criteria, false));
double latitude = location.getLatitude();
double longitude = location.getLongitude();
回答by DarckBlezzer
This is my code for you, I hope this help you... edit it if you think, it isn't with correct sintaxis...
这是我给你的代码，我希望这对你有帮助......如果你认为它没有正确的sintaxis，请编辑它......
This work for android 4.x and 5.x and 6.x, I not test this in android 7
这适用于 android 4.x 和 5.x 和 6.x，我没有在 android 7 中测试这个
//I use this like global var to edit or get informacion about google map
GoogleMap gMap;
@Override
public void onMapReady(GoogleMap googleMap) {
gMap = googleMap;
if (ActivityCompat.checkSelfPermission(Activity_Map.this, android.Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(Activity_Map.this, android.Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
ActivityCompat.requestPermissions(Activity_Map.this,new String[]{android.Manifest.permission.ACCESS_FINE_LOCATION}, 1);
}else{
if(!gMap.isMyLocationEnabled())
gMap.setMyLocationEnabled(true);
LocationManager lm = (LocationManager)getSystemService(Context.LOCATION_SERVICE);
Location myLocation = lm.getLastKnownLocation(LocationManager.GPS_PROVIDER);
if (myLocation == null) {
Criteria criteria = new Criteria();
criteria.setAccuracy(Criteria.ACCURACY_COARSE);
String provider = lm.getBestProvider(criteria, true);
myLocation = lm.getLastKnownLocation(provider);
}
if(myLocation!=null){
LatLng userLocation = new LatLng(myLocation.getLatitude(), myLocation.getLongitude());
gMap.animateCamera(CameraUpdateFactory.newLatLngZoom(userLocation, 14), 1500, null);
}
}
}
回答by AlexDG
getMyLocation()=> this method is deprecated. You need to use LocationClientinstead.
getMyLocation()=>此方法已弃用。你需要LocationClient改用。
You can find informations about LocationClientand how to get current location here
