com.google.android.gms.maps.OnMapReadyCallback |
Callback interface for when the map is ready to be used.
Once an instance of this interface is set on a MapFragment
or
MapView
object, the onMapReady(GoogleMap)
method is
triggered when the map is ready to be used and provides a non-null instance
of GoogleMap
.
If Google Play services is not installed on the device, the user will be
prompted to install it, and the onMapReady(GoogleMap)
method will
only be triggered when the user has installed it and returned to the app.
Public Methods | |||||||||||
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Called when the map is ready to be used.
|
Called when the map is ready to be used.
Note that this does not guarantee that the map has undergone layout. Therefore, the map's
size may not have been determined by the time the callback method is called. If you need to
know the dimensions or call a method in the API that needs to know the dimensions, get the
map's View
and register an
ViewTreeObserver.OnGlobalLayoutListener
as well.
Do not chain the OnMapReadyCallback
and OnGlobalLayoutListener
listeners,
but instead register and wait for both callbacks independently, since the callbacks can be
fired in any order.
As an example, if you want to update the map's camera using a
LatLngBounds
without dimensions, you should
wait until both OnMapReadyCallback
and OnGlobalLayoutListener
have completed.
Otherwise there is a race condition that could trigger an IllegalStateException
.
Parameters | |
---|---|
googleMap |
GoogleMap :
A non-null instance of a GoogleMap associated with the
MapFragment or MapView that defines the callback.
|