如何从另一个类将文本设置为谷歌地图的当前位置

Question

我创建了一个单独的活动来创建谷歌地图，并在用户当前位置上设置标记。在另一个片段类中，我想将文本视图的文本设置为map活动的位置。

CheckInFragment

mLocation = (TextView) v.findViewById(R.id.checkin_location_text);
mLocation.setText();

MapsActivity

private void handleNewLocation(Location location){
//SET THESE TWO VARIABLES TO THE TEXT vv
double currentLatitude = location.getLatitude();
double currentLongitude = location.getLongitude();
LatLng latLng = new LatLng(currentLatitude, currentLongitude);
MarkerOptions options = new MarkerOptions()
.position(latLng)
.title("Check In Location");
mMap.addMarker(options); 
mMap.moveCamera(CameraUpdateFactory.newLatLng(latLng));
float zoomLevel = 16.0f;
mMap.moveCamera(CameraUpdateFactory.newLatLngZoom(latLng, zoomLevel));
}

Answer 1

您可以尝试以下代码来获取位置的字符串值：

Geocoder geocoder = new Geocoder(getApplicationContext(), Locale.getDefault());
try {
List<Address> addressList = geocoder.getFromLocation(location.getLatitude(),
location.getLongitude(), 1);
String fullAddress = "";
if (addressList != null && addressList.size() > 0) {
if (addressList.get(0).getAddressLine(0) != null) {
fullAddress += addressList.get(0).getAddressLine(0) + " ";
}
if (addressList.get(0).getSubAdminArea() != null) {
fullAddress += addressList.get(0).getSubAdminArea() + " ";
}
} else {
Log.d("Address:", "Couldn't find Address");
}
} catch (IOException e) {
e.printStackTrace();
}

然后，当调用片段类时，可以在bundle中传递fullAddress字符串值，类似于：

YourFragment fragment = new YourFragment();
Bundle args = new Bundle();
args.putString("location_string", fullAddress);
fragment.setArguments(args);

最后，在Fragment类的onCreate方法中获取字符串值，如下所示：

if (getArguments() != null)
{
_location = getArguments().getString("location_string");
}

希望这能有所帮助！！！