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MapFragment

public class MapFragment extends Fragment
java.lang.Object
   ↳ android.app.Fragment
     ↳ com.google.android.gms.maps.MapFragment

A Map component in an app. This fragment is the simplest way to place a map in an application. It's a wrapper around a view of a map to automatically handle the necessary life cycle needs. Being a fragment, this component can be added to an activity's layout file simply with the XML below.

 <fragment
    class="com.google.android.gms.maps.MapFragment"
    android:layout_width="match_parent"
    android:layout_height="match_parent"/>
A GoogleMap must be acquired using getMapAsync(OnMapReadyCallback). This class automatically initializes the maps system and the view.

A view can be removed when the MapFragment's onDestroyView() method is called and the useViewLifecycleInFragment(boolean) option is set. When this happens the MapFragment is no longer valid until the view is recreated again later when MapFragment's onCreateView(LayoutInflater, ViewGroup, Bundle) method is called.

Any objects obtained from the GoogleMap is associated with the view. It's important to not hold on to objects (e.g. Marker) beyond the view's life. Otherwise it will cause a memory leak as the view cannot be released.

Use this class only if you are targeting API 12 and above. Otherwise, use SupportMapFragment.

Developer Guide

For more information, read the Google Maps Android API v2 developer guide.

Inherited Constant Summary

Public Constructor Summary

Public Method Summary

final GoogleMap
getMap()
This method is deprecated. Use getMapAsync(OnMapReadyCallback) instead. The callback method provides you with a GoogleMap instance guaranteed to be non-null and ready to be used.
void
static MapFragment
static MapFragment
void
onActivityCreated(Bundle savedInstanceState)
void
onAttach(Activity activity)
void
onCreate(Bundle savedInstanceState)
View
onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
void
void
void
onInflate(Activity activity, AttributeSet attrs, Bundle savedInstanceState)
void
void
void
void
void

Public Constructors

public MapFragment ()

Creates a map fragment. This constructor is public only for use by an inflater. Use newInstance() to create a MapFragment programmatically.

Public Methods

public final GoogleMap getMap ()

This method is deprecated.
Use getMapAsync(OnMapReadyCallback) instead. The callback method provides you with a GoogleMap instance guaranteed to be non-null and ready to be used.

Gets the underlying GoogleMap that is tied to the view wrapped by this fragment.

Returns

public void getMapAsync (OnMapReadyCallback callback)

Sets a callback object which will be triggered when the GoogleMap instance is ready to be used.

Note that:

  • This method must be called from the main thread.
  • The callback will be executed in the main thread.
  • In the case where Google Play services is not installed on the user's device, the callback will not be triggered until the user installs it.
  • In the rare case where the GoogleMap is destroyed immediately after creation, the callback is not triggered.
  • The GoogleMap object provided by the callback is non-null.

Parameters
callback The callback object that will be triggered when the map is ready to be used.

public static MapFragment newInstance ()

Creates a map fragment, using default options.

public static MapFragment newInstance (GoogleMapOptions options)

Creates a map fragment with the given options.

public void onActivityCreated (Bundle savedInstanceState)

public void onAttach (Activity activity)

public void onCreate (Bundle savedInstanceState)

public View onCreateView (LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)

public void onDestroy ()

public void onDestroyView ()

public void onInflate (Activity activity, AttributeSet attrs, Bundle savedInstanceState)

Parse attributes during inflation from a view hierarchy into the arguments we handle.

public void onLowMemory ()

public void onPause ()

public void onResume ()

public void onSaveInstanceState (Bundle outState)

Provides a Bundle to store the state of the Fragment before it gets destroyed. It can later be retrieved when onCreate(Bundle) is called again.

Note that storing custom Parcelable objects directly in the provided Bundle will throw a ClassNotFoundException. This is due to the fact that this Bundle is parceled (thus losing its attached ClassLoader) and unparceled later in a different ClassLoader.

A workaround to this issue is to store custom Parcelable objects in another Bundle object before putting them in the provided Bundle.

However, note that it is safe to store Parcelable objects from the Maps API (e.g. MarkerOptions, LatLng, etc.) directly in the provided Bundle.

public void setArguments (Bundle args)