Develop Reference

LatLngBounds with CameraUpdate not zooming in

I have a GoogleMap (Lite Mode) object that has been properly initialized. It works properly with a single Marker and focuses on the proper area using CameraUpdate with newLatLngZoom.
However, when it comes to adding two markers, and have the map keep both in view using LatLngBounds, everything goes bonkers. The map is so zoomed out it shows the entire continent, and the two markers are on-top of each other (along with the polyline).
Kindly assume that the data from the pickup and destination is correct
Here's my code:
googleMap.addMarker(new MarkerOptions()
.position(pickup)
.title(job.getPickupAddress()));
googleMap.addMarker(new MarkerOptions()
.position(destination)
.title(job.getDestinationAddress())
.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_BLUE)));
CameraUpdate cameraUpdate = CameraUpdateFactory.newLatLngBounds(new LatLngBounds.Builder().include(pickup).include(destination).build(), 0);
googleMap.moveCamera(cameraUpdate);
String pickupLatLng = job.getPickupLatLong().latitude + "," + job.getPickupLatLong().longitude;
String destinationLatLng = job.getDestinationLatLong().latitude + "," + job.getDestinationLatLong().longitude;
plotPolyLines(pickupLatLng, destinationLatLng);
Output:

Setting a zoom with latlng bounds is not an effective solution for all use cases.
Might be a related Bug Maps Lite mode with incorrect zoom level first time app starts
Try few solutions / hacks listed here : https://issuetracker.google.com/issues/36218443
Like refreshing the map by destroying and recreating
Also check if by using a single marker with bounds builder if the map sets to the proper zoom level
One last thing make sure that zoom level limits have not been applied.

try changing the line
googleMap.moveCamera(cameraUpdate);
to
googleMap.moveCamera( CameraUpdateFactory.newLatLngZoom(new LatLng(xxxx,xxxx) , 14.0f) );
as suggested in How do I set default location and Zoom level for google map api v2?
or use
map.animateCamera(CameraUpdateFactory.zoomTo(15), 2000, null);
That should move the camera closer to your marker.

Move the marker along the with map as the user moves

I have implemented google map into my app. I have added a custom marker at my current location.I want to move the marker as the user moves, along with the map. I want to implement the functionality as in google maps navigation. While googling i found the following links but did not get the result. so can any one help me out ?
I have added this in onLocationChanged()
LatLng latLng = new LatLng(location.getLatitude(), location.getLongitude());
sourceLocation = latLng;
startPoint = new GeoPoint(latLng.latitude,latLng.longitude);
forNavigation = location;
// animation
mMap.moveCamera(CameraUpdateFactory.newLatLng(latLng));
// Zoom in the Google Map
mMap.animateCamera(CameraUpdateFactory.zoomTo(15));
// mMap.animateCamera(CameraUpdateFactory.newLatLngZoom(mPositionMarker.getPosition(), 15));
mMap.animateCamera(CameraUpdateFactory.newLatLng(new LatLng(location
.getLatitude(), location.getLongitude())));
These are the links which i found
Google map: moving marker and map together smoothly along with user?
How to smoothly keep moving current location marker in Google Maps v2 android

here is two solution you have.
Use onlocationtrue then it show you blue dot as your current location.
Use fused api for current location and create you marker in locationchanged.
for fused api you can check from here.
thanks

Google Maps CameraUpdate moves to the wrong coordinates

I am writing an app that uses Google Maps Android API V2. The app will center on a specific latitude and longitude (this position is hard coded to 36.5323, -87.3546) when the user turns on the map and get the user's position every 15 seconds. However, when the user first turns the camera on it centers to (8.407168163601076,-87.35459994524717).
This only happens when the user first turns the map on. If the map is turned off and then turned back on, it centers on the correct coordinates. This has only happened on a Nexus 9. I have two other devices for testing where it properly centers the map on the first try.
This is the code I call to center the map:
LatLng pos = new LatLng(36.5323, -87.3546);
CameraUpdate center = CameraUpdateFactory.newLatLng(pos);
CameraUpdate zoom = CameraUpdateFactory.zoomTo(14);
map.moveCamera(center);
map.animateCamera(zoom);
Can anyone tell me why this is happening?

try this
LatLng pos= new LatLng(LATITUDE, LONGITUDE);
CameraUpdate cameraUpdate = CameraUpdateFactory.newLatLngZoom(latLng, 16);
map.animateCamera(cameraUpdate);

Android Google Maps API v2: get my bearing location

I would like to force the camera to behave like you are using navigation, it means when you rotate 90° left, the camera does the same thing.
I have a Google Map where my location (as a blue dot) is shown.
mGoogleMap.setMyLocationEnabled(true);
When I am moving, blue dot is with an arrow which shows my current bearing. I would like to get this bearing.
I am getting my current location using FusedLocationApi:
currentLocation = LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient);
Code below is animating camera to current location, but without the bearing. I can add the bearing, but I don't know the value.
#Override
public void onLocationChanged(Location location) {
LatLng latLng = new LatLng( location.getLatitude(), location.getLongitude() );
mGoogleMap.moveCamera(CameraUpdateFactory.newLatLng(latLng));
mGoogleMap.animateCamera(CameraUpdateFactory.zoomTo(15));
}
Do you know how to get the current location direction? I was unable to find any proper information about that. I would greatly appreciate any help you can give me.
Thank you

I think you can try to use getOrientation(R, orientation) (and adjust for true north) to get the device rotation. You can refer to here.
Also, use the CameraPosition class here to adjust camera position.
EDIT: I even found better solution. Use getBearing() method in Location class.
if (location.hasBearing()) {
CameraPosition cameraPosition = new CameraPosition.Builder()
.target(latLng) // Sets the center of the map to current location
.zoom(15) // Sets the zoom
.bearing(location.getBearing()) // Sets the orientation of the camera to east
.tilt(0) // Sets the tilt of the camera to 0 degrees
.build(); // Creates a CameraPosition from the builder
mGoogleMap.animateCamera(CameraUpdateFactory.newCameraPosition(cameraPosition));
}

how to open up a map of a particular city using google APIs in android

I have been able to open up a map of the world through code and mark a few places. However, I always have to zoom down to the city, which takes a little while. Is there any way to directly open up a map of a particular city?

You can use moveCamera with your last stored location (lat, lng and maybe zoomLevel too) for example.
final LatLng location = new LatLng(..., ...);// Loaded from SharedPreferences maybe.
// Move the camera to location with a zoom of 15.
map.moveCamera(CameraUpdateFactory.newLatLngZoom(location, 15));

You can use this sample code to animate the map directly to your city coordinate (lat, lng) and automatically zooming out to specified level :
// Set desired lat lng location, and zoom level (for example 10)
CameraUpdate cameraUpdate = CameraUpdateFactory.newLatLngZoom(new LatLng(locationCity.getLatitude(), locationCity.getLongitude()), 10);
// Move the camera to location
gMap.animateCamera(cameraUpdate);