CameraUpdateFactory

public final class CameraUpdateFactory extends Object

A class containing methods for creating CameraUpdate objects that change a map's camera. To modify the map's camera, call GoogleMap.animateCamera(CameraUpdate), GoogleMap.animateCamera(CameraUpdate, GoogleMap.CancelableCallback) or GoogleMap.moveCamera(CameraUpdate), using a CameraUpdate object created with this class.

For example, to zoom in on a map, you can use the following code:

GoogleMap map = ...;
 map.animateCamera(CameraUpdateFactory.zoomIn());
 

Prior to using any methods from this class, you must do one of the following to ensure that this class is initialized:

• Wait for a GoogleMap to become available from a MapFragment or MapView that you have added to your application. You can obtain the GoogleMap instance by calling getMapAsync() and waiting for the onMapReady(GoogleMap map) callback.
• Call MapsInitializer.initialize(Context). As long as a GooglePlayServicesNotAvailableException isn't thrown, this class will be correctly initialized.

Developer Guide

For more information, read the Camera and View developer guide.

Public Method Summary

static CameraUpdate	newCameraPosition(CameraPosition cameraPosition) Returns a CameraUpdate that moves the camera to a specified CameraPosition.
static CameraUpdate	newLatLng(LatLng latLng) Returns a CameraUpdate that moves the center of the screen to a latitude and longitude specified by a LatLng object.
static CameraUpdate	newLatLngBounds(LatLngBounds bounds, int padding) Returns a CameraUpdate that transforms the camera such that the specified latitude/longitude bounds are centered on screen at the greatest possible zoom level.
static CameraUpdate	newLatLngBounds(LatLngBounds bounds, int width, int height, int padding) Returns a CameraUpdate that transforms the camera such that the specified latitude/longitude bounds are centered on screen within a bounding box of specified dimensions at the greatest possible zoom level.
static CameraUpdate	newLatLngZoom(LatLng latLng, float zoom) Returns a CameraUpdate that moves the center of the screen to a latitude and longitude specified by a LatLng object, and moves to the given zoom level.
static CameraUpdate	scrollBy(float xPixel, float yPixel) Returns a CameraUpdate that scrolls the camera over the map, shifting the center of view by the specified number of pixels in the x and y directions.
static CameraUpdate	zoomBy(float amount, Point focus) Returns a CameraUpdate that shifts the zoom level of the current camera viewpoint.
static CameraUpdate	zoomBy(float amount) Returns a CameraUpdate that shifts the zoom level of the current camera viewpoint.
static CameraUpdate	zoomIn() Returns a CameraUpdate that zooms in on the map by moving the viewpoint's height closer to the Earth's surface.
static CameraUpdate	zoomOut() Returns a CameraUpdate that zooms out on the map by moving the viewpoint's height farther away from the Earth's surface.
static CameraUpdate	zoomTo(float zoom) Returns a CameraUpdate that moves the camera viewpoint to a particular zoom level.

Inherited Method Summary

From class java.lang.Object

Object	clone()
boolean	equals(Object arg0)
void	finalize()
final Class<?>	getClass()
int	hashCode()
final void	notify()
final void	notifyAll()
String	toString()
final void	wait(long arg0, int arg1)
final void	wait(long arg0)
final void	wait()

Public Methods

public static CameraUpdate newCameraPosition (CameraPosition cameraPosition)

Returns a CameraUpdate that moves the camera to a specified CameraPosition. In effect, this creates a transformation from the CameraPosition object's latitude, longitude, zoom level, bearing and tilt.

Parameters

cameraPosition	The requested position. Must not be null.

Returns

• a CameraUpdate containing the transformation.

public static CameraUpdate newLatLng (LatLng latLng)

Returns a CameraUpdate that moves the center of the screen to a latitude and longitude specified by a LatLng object. This centers the camera on the LatLng object.

Parameters

latLng	a LatLng object containing the desired latitude and longitude. Must not be null.

Returns

• a CameraUpdate containing the transformation.

public static CameraUpdate newLatLngBounds (LatLngBounds bounds, int padding)

Returns a CameraUpdate that transforms the camera such that the specified latitude/longitude bounds are centered on screen at the greatest possible zoom level. You can specify padding, in order to inset the bounding box from the map view's edges. The returned CameraUpdate has a bearing of 0 and a tilt of 0.

Do not change the camera with this camera update until the map has undergone layout (in order for this method to correctly determine the appropriate bounding box and zoom level, the map must have a size). Otherwise an IllegalStateException will be thrown. It is NOT sufficient for the map to be available; the view containing the map must have also undergone layout such that its dimensions have been determined. If you cannot be sure that this has occurred, use newLatLngBounds(LatLngBounds, int, int, int) instead and provide the dimensions of the map manually.

Parameters

bounds	region to fit on screen. Must not be null.
padding	space (in px) to leave between the bounding box edges and the view edges. This value is applied to all four sides of the bounding box.

Returns

• a CameraUpdate containing the transformation.

public static CameraUpdate newLatLngBounds (LatLngBounds bounds, int width, int height, int padding)

Returns a CameraUpdate that transforms the camera such that the specified latitude/longitude bounds are centered on screen within a bounding box of specified dimensions at the greatest possible zoom level. You can specify additional padding, to further restrict the size of the bounding box. The returned CameraUpdate has a bearing of 0 and a tilt of 0.

Unlike newLatLngBounds(LatLngBounds, int), you can use the CameraUpdate returned by this method to change the camera prior to the map's the layout phase, because the arguments specify the desired size of the bounding box.

Parameters

bounds	the region to fit in the bounding box. Must not be null.
width	bounding box width in pixels (px)
height	bounding box height in pixels (px)
padding	additional size restriction (in px) of the bounding box

Returns

• a CameraUpdate containing the transformation.

public static CameraUpdate newLatLngZoom (LatLng latLng, float zoom)

Returns a CameraUpdate that moves the center of the screen to a latitude and longitude specified by a LatLng object, and moves to the given zoom level.

Parameters

latLng	a LatLng object containing the desired latitude and longitude. Must not be null.
zoom	the desired zoom level, in the range of 2.0 to 21.0. Values below this range are set to 2.0, and values above it are set to 21.0. Increase the value to zoom in. Not all areas have tiles at the largest zoom levels.

Returns

• a CameraUpdate containing the transformation.

public static CameraUpdate scrollBy (float xPixel, float yPixel)

Returns a CameraUpdate that scrolls the camera over the map, shifting the center of view by the specified number of pixels in the x and y directions.

Examples:

• If xPixel = 5 and yPixel = 0, the system scrolls right by moving the camera so that the map appears to have shifted 5 pixels to the left.
• If xPixel = 0 and yPixel = 5, the system scrolls down by moving the camera so that the map appears to have shifted 5 pixels upwards.

The scrolling is relative to the camera's current orientation. For example, if the camera is bearing 90 degrees, then east is "up" and scrolling right will move the camera south.

Parameters

xPixel	the number of pixels to scroll horizontally. A positive value moves the camera to the right, with respect to its current orientation. A negative value moves the camera to the left, with respect to its current orientation.
yPixel	the number of pixels to scroll vertically. A positive value moves the camera downwards, with respect to its current orientation. A negative value moves the camera upwards, with respect to its current orientation.

Returns

• a CameraUpdate containing the transformation.

public static CameraUpdate zoomBy (float amount, Point focus)

Returns a CameraUpdate that shifts the zoom level of the current camera viewpoint.

A point specified by focus will remain fixed (i.e., it corresponds to the same lat/long both before and after the zoom process).

This method is different to zoomTo(float) in that zoom is relative to the current camera.

For example, if the LatLng (11.11, 22.22) is currently at the screen location (23, 45). After calling this method with a zoom amount and this LatLng, the screen location of this LatLng will still be (23, 45).

Parameters

amount	amount to change the zoom level. Positive values indicate zooming closer to the surface of the Earth while negative values indicate zooming away from the surface of the Earth.
focus	pixel location on the screen that is to remain fixed after the zooming process. The lat/long that was at that pixel location before the camera move will remain the same after the camera has moved. Must not be null.

Returns

• a CameraUpdate containing the transformation.

public static CameraUpdate zoomBy (float amount)

Returns a CameraUpdate that shifts the zoom level of the current camera viewpoint.

This method is different to zoomTo(float) in that zoom is relative to the current camera.

Parameters

amount	amount to change the zoom level. Positive values indicate zooming closer to the surface of the Earth while negative values indicate zooming away from the surface of the Earth.

Returns

• a CameraUpdate containing the transformation.

public static CameraUpdate zoomIn ()

Returns a CameraUpdate that zooms in on the map by moving the viewpoint's height closer to the Earth's surface. The zoom increment is 1.0.

Returns

• a CameraUpdate containing the transformation.

public static CameraUpdate zoomOut ()

Returns a CameraUpdate that zooms out on the map by moving the viewpoint's height farther away from the Earth's surface. The zoom increment is -1.0.

Returns

• a CameraUpdate containing the transformation.

public static CameraUpdate zoomTo (float zoom)

Returns a CameraUpdate that moves the camera viewpoint to a particular zoom level.

Parameters

zoom	the desired zoom level, in the range of 2.0 to 21.0. Values below this range are set to 2.0, and values above it are set to 21.0. Increase the value to zoom in. Not all areas have tiles at the largest zoom levels.