Develop Reference

Show Google Map in Material Dialog Android

I want to show google map in to a custom dialogue.. But i can not access SupportFragmentManager from dialogue class...
Here is my code....
public class AddressViewDialog extends MaterialDialog.Builder implements OnMapReadyCallback {
private MaterialDialog reviewDialog;
private double latitude = 23.0;
private double longitude = 90.0;
private SupportMapFragment mMapFragment;
private GoogleMap mMap;
public AddressViewDialog(Context context) {
super(context);
this.context = context;
initializeView();
}
public void initializeView() {
reviewDialog = new MaterialDialog.Builder(this.getContext())
.title(R.string.request_to_introduce)
.customView(R.layout.dialog_pending_introducer_review, true)
.show();
View v = reviewDialog.getCustomView();
mMapFragment = (SupportMapFragment) this.getChildFragmentManager()
.findFragmentById(R.id.fragment);
mMapFragment.getView().setVisibility(View.GONE);
if (latitude != 0.0 && longitude != 0.0) {
mMapFragment.getView().setVisibility(View.VISIBLE);
mMapFragment.getMapAsync(this);
} else
mMapFragment.getView().setVisibility(View.GONE);
}
#Override
public void onMapReady(GoogleMap googleMap) {
mMap = googleMap;
LatLng currentLoc = new LatLng(latitude, longitude);
mMap.addMarker(new MarkerOptions().position(currentLoc).title("My Location"));
mMap.animateCamera(CameraUpdateFactory.newLatLngZoom(currentLoc, 14.0f));
}
}
Here is my xml..
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal"
android:orientation="vertical"
android:layout_margin="#dimen/activity_horizontal_margin">
<fragment
android:id="#+id/fragment"
android:name="com.google.android.gms.maps.SupportMapFragment"
android:layout_width="match_parent"
android:layout_height="250dp" />
</LinearLayout>
It shows error in this line:
mMapFragment = (SupportMapFragment) this.getChildFragmentManager()
.findFragmentById(R.id.fragment);
I also Tried :
mMapFragment = (SupportMapFragment) this.getSupportFragmentManager()
.findFragmentById(R.id.fragment);

You should call getSupportFragmentManager() not on MaterialDialog.Builder object (your AddressViewDialog extends MaterialDialog.Builder) but on AppCompatActivity object. So use
mMapFragment = (SupportMapFragment) ((AppCompatActivity) this.context).getSupportFragmentManager()
.findFragmentById(R.id.fragment);
instead of
mMapFragment = (SupportMapFragment) this.getChildFragmentManager()
.findFragmentById(R.id.fragment);
and create your AddressViewDialog from MainActivity this way:
new AddressViewDialog(MainActivity.this).show();
(MainActivity should extends AppCompatActivity).

How to use getMapAsync() instead of getMap()

I am aware that in Play Services, getMap() is depreciated, and is replaced by getMapAsync().
But I am not sure how to use getMapAsync(). I found other questions similar to this -- however, in my code, I am not sure what to implement in my getMapAsync(). I think it is supposed to be a callback method, but I am not sure.
Could someone please put the correct code in, and tell me what I am doing wrong?
public class FindParty extends AppCompatActivity {
static final LatLng Durban = new LatLng(-29.858680, 31.021840);
private GoogleMap googleMap;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_find_party);
try{
if (googleMap == null) {
googleMap = ((MapFragment) getFragmentManager().findFragmentById(R.id.map)).getMapAsync();
}
googleMap.setMapType(GoogleMap.MAP_TYPE_HYBRID);
googleMap.setTrafficEnabled(true);
googleMap.setIndoorEnabled(true);
googleMap.setBuildingsEnabled(true);
googleMap.getUiSettings().setZoomControlsEnabled(true);
final Marker marker_Durban = googleMap.addMarker(new MarkerOptions()
.position(Durban)
.snippet("Durban, KwaZulu-Natal, South Africa")
.title("Durban"));
googleMap.setOnInfoWindowClickListener(new GoogleMap.OnInfoWindowClickListener() {
#Override
public void onInfoWindowClick(Marker marker) {
if (marker.getTitle().equals("Durban")) {
Intent intent = new Intent(FindParty.this, Party.class);
intent.putExtra("message", "Durban");
startActivity(intent);
}
}
});
} catch (Exception e) {
e.printStackTrace();
}
}
}

your class need to implements OnMapReadyCallback
public class FindParty extends AppCompatActivity implements OnMapReadyCallback {
static final LatLng Durban = new LatLng(-29.858680, 31.021840);
private GoogleMap googleMap;
MapFragment mapFragment;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_find_party);
try {
if (googleMap == null) {
mapFragment = ((MapFragment) getFragmentManager().findFragmentById(R.id.map));
mapFragment.getMapAsync(this);
}
} catch (Exception e) {
e.printStackTrace();
}
}
#Override
public void onMapReady(GoogleMap map) {
googleMap = map;
googleMap.setMapType(GoogleMap.MAP_TYPE_HYBRID);
googleMap.setTrafficEnabled(true);
googleMap.setIndoorEnabled(true);
googleMap.setBuildingsEnabled(true);
googleMap.getUiSettings().setZoomControlsEnabled(true);
final Marker marker_Durban = googleMap.addMarker(new MarkerOptions()
.position(Durban)
.snippet("Durban, KwaZulu-Natal, South Africa")
.title("Durban"));
googleMap.setOnInfoWindowClickListener(new GoogleMap.OnInfoWindowClickListener() {
#Override
public void onInfoWindowClick(Marker marker) {
if (marker.getTitle().equals("Durban")) {
Intent intent = new Intent(FindParty.this, Party.class);
intent.putExtra("message", "Durban");
startActivity(intent);
}
}
});
}
}

You are right, getMapAsync() is based on callback, please see belowe example and move your map options settings to callback method:
Example

getMapAsync() { it.isTrafficEnabled = false }

The better way I found to understand the use of getMapAsync was to create a new project in Android Studio and use the template of google maps activity instead of an empty activity.
Hope help others with the same difficulty.

Add marker on long press in Google Maps API v3

How to implement adding a marker on long press in Google Maps API v3 for android? There are answers about this in Stack Overflow itself but they are for Google Maps API v2.
public class advertiserMap extends FragmentActivity implements OnMapReadyCallback {
private GoogleMap mMap;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_advertiser_map);
// Obtain the SupportMapFragment and get notified when the map is ready to be used.
SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
.findFragmentById(R.id.map);
mapFragment.getMapAsync(this);
}
//for searching for a location
public void onMapSearch(View view) {
EditText locationSearch = (EditText) findViewById(R.id.editText);
String location = locationSearch.getText().toString();
List<Address> addressList = null;
if (location != null || !location.equals("")) {
Geocoder geocoder = new Geocoder(this);
try {
addressList = geocoder.getFromLocationName(location, 1);
} catch (IOException e) {
e.printStackTrace();
}
Address address = addressList.get(0);
LatLng latLng = new LatLng(address.getLatitude(), address.getLongitude());
mMap.animateCamera(CameraUpdateFactory.newLatLng(latLng));
}
}
#Override
public void onMapReady(GoogleMap googleMap) {
mMap = googleMap;
// Add a marker in Sydney and move the camera
LatLng sydney = new LatLng(-34, 151);
mMap.addMarker(new MarkerOptions().position(sydney).title("Marker in Sydney"));
mMap.moveCamera(CameraUpdateFactory.newLatLng(sydney));
}
}

As #tyczj pointed out, there's no v3 for Android Google Maps API, so you are probably using v2.
That said, to accomplish what you want, call setOnMapLongClickListener in your mMap object, and add the marker as you want inside onMapLongClick. You should do this in the onMapReady method:
#Override
public void onMapReady(GoogleMap googleMap) {
...
mMap.setOnMapLongClickListener(new GoogleMap.OnMapLongClickListener() {
#Override
public void onMapLongClick(LatLng latLng) {
googleMap.addMarker(new MarkerOptions()
.position(latLng)
.title("Your marker title")
.snippet("Your marker snippet"));
}
});
}
// EDIT:
If you want to keep only one marker present at a time, you should declare your marker in the global activity's scope, and then, in onMapLongClick, if marker already exists, instead of creating a new marker, just update it's position:
public class advertiserMap extends FragmentActivity implements OnMapReadyCallback {
// Declare marker globally
Marker myMarker;
...
#Override
public void onMapReady(GoogleMap googleMap) {
...
mMap.setOnMapLongClickListener(new GoogleMap.OnMapLongClickListener() {
#Override
public void onMapLongClick(LatLng latLng) {
// First check if myMarker is null
if (myMarker == null) {
// Marker was not set yet. Add marker:
myMarker = googleMap.addMarker(new MarkerOptions()
.position(latLng)
.title("Your marker title")
.snippet("Your marker snippet"));
} else {
// Marker already exists, just update it's position
myMarker.setPosition(latLng);
}
}
});
}
}
If done like this, remember to always check if your marker is not NULL before manipulating it in your code.

Hey guys if you all are using mMap.clear() then remove it . Mostly it work just fine.

Marker is not working(not exact location is displaying), only world Map is visible in Frgament

CustomMapFragment
public class CustomMapFragment extends SupportMapFragment {
public static final LatLng NurissLife = new LatLng(28.602012, 77.098750);
private SupportMapFragment supportMapFragment;
#Override
public void onActivityCreated(Bundle bundle) {
// FragmentManager fm=getChildFragmentManager();
supportMapFragment=SupportMapFragment.newInstance();
//supportMapFragment=(SupportMapFragment)getChildFragmentManager
//().findFragmentById(R.id.map_container);
supportMapFragment.getMapAsync(new OnMapReadyCallback() {
#Override
public void onMapReady(GoogleMap googleMap) {
googleMap.addMarker(new MarkerOptions().position
(NurissLife).title("Nuriss LifeCare"));
googleMap.moveCamera(CameraUpdateFactory.newLatLngZoom
(NurissLife, 15));
googleMap.animateCamera(CameraUpdateFactory.zoomTo(15), 2000,
null);
}
});
super.onActivityCreated(bundle);
}
}
Fragment xml
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/map_content"
tools:context="com.demo.stuartabhi.nurisslife.Fragment.ContactFragment">
<!-- TODO: Update blank fragment layout -->
<FrameLayout
android:layout_width="match_parent"
class="com.google.android.gms.maps.SupportMapFragment"
android:layout_height="match_parent"
android:id="#+id/map_container">
</FrameLayout>
</FrameLayout>'
Marker is not working(exact location is not displaying), only world Map
is visible in Fragement
OnMapReady is not working either showing
no error in log, location code being described in OnMapReady method.
Please help regarding this, how to access the described location LatLng NurissLife inside SupportMapFragment.
Thanks in advance.

If you extend SupportMapFragment, there is no need to inflate any xml layout. Just call this.getMapAsync() in order to get a reference to the GoogleMap:
public class CustomMapFragment extends SupportMapFragment implements
OnMapReadyCallback {
private GoogleMap mMap;
public CustomMapFragment() {
}
#Override
public void onResume() {
super.onResume();
setUpMapIfNeeded();
}
private void setUpMapIfNeeded() {
if (mMap == null) {
getMapAsync(this);
}
}
#Override
public void onMapReady(GoogleMap googleMap) {
Log.d("MyMap", "onMapReady");
mMap = googleMap;
mMap.addMarker(new MarkerOptions().position(NurissLife).title("Nuriss LifeCare"));
mMap.moveCamera(CameraUpdateFactory.newLatLngZoom(NurissLife, 15));
mMap.animateCamera(CameraUpdateFactory.zoomTo(15), 2000, null);
}
}

Try this:
Create a method getCustomMapFragment() in your Activity class like this:
private SupportMapFragment getCustomMapFragment(){
SupportMapFragment supportMapFragment;
supportMapFragment= SupportMapFragment.newInstance();
supportMapFragment.getMapAsync(new OnMapReadyCallback() {
#Override
public void onMapReady(GoogleMap googleMap) {
googleMap.addMarker(new MarkerOptions().position
(NurissLife).title("Nuriss LifeCare"));
googleMap.moveCamera(CameraUpdateFactory.newLatLngZoom
(NurissLife, 15));
googleMap.animateCamera(CameraUpdateFactory.zoomTo(15), 2000,
null);
}
});
return supportMapFragment;
}
And when you perform your FragmentTransaction, try this:
...
transaction=getChildFragmentManager().beginTransaction();
transaction.add(R.id.map_container,getCustomMapFragment()).commit();
...
Also, with this implementation, the class="com.google.android.gms.maps.SupportMapFragment" line in your XML might be unnecessary.

Cannot cast from Fragment to SupportMapFragment

public class OutdoorFragment extends Fragment {
private GoogleMap googleMap;
double latitude = 1.31039;
double longitude = 103.7784;
public OutdoorFragment() {
}
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_outdoor, container,
false);
try {
// Loading map
initilizeMap();
} catch (Exception e) {
e.printStackTrace();
}
googleMap.getUiSettings().setZoomGesturesEnabled(true);
googleMap.getUiSettings().setRotateGesturesEnabled(true);
googleMap.getUiSettings().setMyLocationButtonEnabled(true);
googleMap.setMyLocationEnabled(true);
// create marker
MarkerOptions marker = new MarkerOptions().position(
new LatLng(latitude, longitude)).title("Koh Chi Hao ");
// adding marker
marker.icon(BitmapDescriptorFactory
.defaultMarker(BitmapDescriptorFactory.HUE_VIOLET));
googleMap.addMarker(marker);
return rootView;
}
private void initilizeMap() {
if (googleMap == null) {
googleMap = ((SupportMapFragment) getFragmentManager().findFragmentById(R.id.map)).getMap();
// check if map is created successfully or not
if (googleMap == null) {
Toast.makeText(getActivity().getApplicationContext(),
"Sorry! unable to create maps", Toast.LENGTH_SHORT)
.show();
}
}
}
#Override
public void onResume() {
super.onResume();
initilizeMap();
}
}
Hi there, inside my initializeMap() , googleMap = ((SupportMapFragment) getFragmentManager().findFragmentById(R.id.map)).getMap(); keeps on saying that Cannot cast from Fragment to SupportMapFragment . I am not sure what is happening .
Thanks in advance

Change;
googleMap = ((SupportMapFragment) getFragmentManager().
findFragmentById(R.id.map)).getMap();
with this;
googleMap = ((SupportMapFragment) getSupportFragmentManager().
findFragmentById(R.id.map)).getMap();
Note that getSupportFragmentManager is from android.support.v4.app.FragmentActivity.
Good luck.

You need to use android.support.v7.app.Fragment;
And need to use getSupportFragmentManager
Basically you need v7 library

Check your activity layout. The fragment with map must have the following attribute name="com.google.android.gms.maps.SupportMapFragment" to indicate which fragment class you use.