android-mapview

问题 I have a fragment that holds a MapView. I have added this view in XML file like this: <?xml version="1.0" encoding="utf-8"?> <com.google.android.gms.maps.MapView xmlns:android="http://schemas.android.com/apk/res/android" xmlns:map="http://schemas.android.com/apk/res-auto" android:id="@+id/mapView" android:layout_width="match_parent" android:layout_height="match_parent" android:clickable="true" map:uiCompass="true" android:background="#00000000" /> And I've linked it to my code like this:

问题 I have got following problem. I'm drawning route on mapview in separate thread like this: public void drawRoute(final MapView mapView) { new Thread(new Runnable() { public void run() { try { //Do something useful } catch (SomeException se) { Handler handler = mapView.getHandler(); handler.post(/*show error in UI thread*/) }} }).start(); } But when I get handler it returns null, although in debug mode handler returned and error message is displayed. What can the problem be? PS May be it's

问题 After Full day Spending, I Found solution of this Question: How to show route on InBuilt MAP from one current place to another place using longitude/latitude or using Address? May it is helpful to you. 回答1: Create layout file for Button: layout.xml <Button android:id="@+id/showMap" android:layout_width="@dimen/visit_button_width" android:layout_height="wrap_content" android:layout_marginTop="25dp" android:background="@drawable/login_button_selector" android:text="@string/title_show_map"

问题 Is it possible to show terrain maps similar to this http://maps.google.com/maps?hl=en&ie=UTF8&ll=45.699466,6.389236&spn=0.327066,0.861053&t=p&z=11 using MapView class? 回答1: You can swap styles of the map with .setSatellite(true or false); true for sattelite map false for road map. This style of map is not supported, yet. 来源： https://stackoverflow.com/questions/6795705/is-it-possible-to-show-terrain-maps-with-android-mapview-class

问题 I have a map that dispays markers. If the user clicks on a marker a popup shows up. A method calculates wheather there is a marker at the clicked position. My Problem is that I have a lot of different markers, but in this method I can handle only one specific marker. I need something like a general bitmap, that holds all marker resources. E.g. I do not wand to handle 100 markers manually, because all are a Bitmap so I need just to handle one general bitmap. any ideas? 回答1: I have solved my

问题 I'm trying to get the default zoom controls to show on a google mapView. I was looking at this code. But getZoomControls() is deprecated. I'm trying to use setBuiltInZoomControls instead, but am getting errors; When I debug, the exception is; java.lang.RuntimeException: Unable to start activity ComponentInfo{com.test.maptab2/com.test.maptab2.MapTabView}: java.lang.NullPointerException 02-05 09:49:21.239: W/dalvikvm(357): threadid=1: thread exiting with uncaught exception (group=0x4001d800) 02

问题 Right. So I have an app widget. It has 4 buttons, one one of the buttons I want it to show me the current location of the user on the map. So - I make a new activity as below: package com.android.driverwidget; import java.util.List; import android.os.Bundle; import com.google.android.maps.MapActivity; import com.google.android.maps.MapController; import com.google.android.maps.MapView; import com.google.android.maps.MyLocationOverlay; import com.google.android.maps.Overlay; public class

问题 I have a nested fragment that i would like to maintain the state when the device orientation changed. It is something like this: I'm instantiate a mapView in the nested fragment and when the device is rotated the user must be in the same place where it was. How can I accomplish this? Thank you 回答1: Ok, so i was making a mistake. I was calling the function setRetainInstance(true) on the fragment parent and i shouldn't. After deleting that line, it was very simple to keep the map state on

问题 I am trying to create a MapView programmatically and add a MarkerPosition as shown below: MapView mapView = new MapView(getActivity()); ((ViewGroup) rootView).addView(mapView); GoogleMap googleMap = mapView.getMap(); googleMap.addMarker(new MarkerOptions() .position(new LatLng( Double.parseDouble( mEvent.getEventInfo().mEventData.mLat), Double.parseDouble( mEvent.getEventInfo().mEventData.mLng))) .title("Marker")); Manifest File: <uses-permission android:name="android.permission.ACCESS_COARSE

问题 How to mark my current location on google map? I am using google place API. I have to show all near places from my current position. All places are showing on google map, but how to show my current position? The code is given below: public class PoliceStationMapActivity extends FragmentActivity implements LocationListener { private ArrayList<Place> mArrayListPoliceStations; private GoogleMap mMap; private LocationManager locManager; private double latitude; private double longitude; @Override