google maps in fragment android
Solution 1
Your mapFragment
is null. Try this:
@Override
public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
MapFragment mapFragment = (MapFragment) getActivity().getFragmentManager().findFragmentById(R.id.fragment_view_map);
}
Solution 2
if the above solution does not work, try this. Add this in your map fragment
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_view, container, false);
SupportMapFragment map = (SupportMapFragment) getChildFragmentManager().findFragmentById(R.id.map);
map.getMapAsync(this);
return view;
}
And then add this in your calling activity. because add method was not working so i tried replace method and it works seemlessly.
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_view);
fragment = new MapsActivity();
FragmentManager fm = getSupportFragmentManager();
FragmentTransaction ft = fm.beginTransaction();
ft.replace(R.id.activity_fragment_view, fragment);
ft.commit();
Asdemuertes
Updated on July 09, 2022Comments
-
Asdemuertes almost 2 years
I'm having problems loading a google Maps in my fragment. Everything starts in a recycler view adapter that launchs the activity "ViatgeDetallViewActivity" :
Context context = mActivity.getApplicationContext(); Intent intent = new Intent(context, ViatgeDetallViewActivity.class); holder.mViatge.getId()); intent.putExtra("desc",p.getDesc()); intent.putExtra("location",p.getLocation()); mActivity.startActivityForResult(intent,ACTIVITY_View);
This is my DetallViewActivity :
public class ViatgeDetallViewActivity extends AppCompatActivity { ViatgeDetallViewFragment fragment; protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_view); Bundle extras = getIntent().getExtras(); if(extras != null) { String s = getIntent().getStringExtra("desc"); Location l = getIntent().getParcelableExtra("location"); Log.d("myTag", "estoy en el oncreate de detallviewActivity pasando pro extras" + s ); } fragment = new ViatgeDetallViewFragment(); getSupportFragmentManager().beginTransaction() .add(R.id.activity_fragment_view, fragment) .commit(); getFragmentManager().beginTransaction().add(R.id.activity_fragment_view, fragment).commit(); } }
With my ViatgeDetallViewFragment being :
public class ViatgeDetallViewFragment extends Fragment implements OnMapReadyCallback { private GoogleMap mMap; private Marker mMarcadorActual; public ViatgeDetallViewFragment() { } .... public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View rootView = inflater.inflate(R.layout.fragment_view, container, false); SupportMapFragment mapFragment = (SupportMapFragment) getChildFragmentManager().findFragmentById(R.id.fragment_view_map); mapFragment.getMapAsync(this); return rootView; } @Override public void onMapReady(GoogleMap googleMap) { mMap = googleMap; //ask for permissions.. mMap.setMyLocationEnabled(true); LatLng sydney = new LatLng(-34, 151); mMarcadorActual = mMap.addMarker(new MarkerOptions().position(sydney).title("Marker in Sydney")); }
With the layouts being , Activity_view:
<Linear ... <android.support.v7.widget.Toolbar android:id="@+id/tlbMenuView" android:layout_width="match_parent" android:layout_height="?attr/actionBarSize" android:background="?attr/colorPrimary" android:elevation="4dp" /> <FrameLayout android:id="@+id/activity_fragment_view" android:layout_width="match_parent" android:layout_height="match_parent" />
fragment_view:
<LinearLayout android:id="@+id/layout_fragment_view" xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent" > .. <fragment android:layout_width="wrap_content" android:layout_height="wrap_content" android:id="@+id/fragment_view_map" class="com.google.android.gms.maps.MapFragment"></fragment> </LinearLayout>
The problem comes when i try launch tje "ViatgeDetallActivity" , i get this in the log:
FATAL EXCEPTION: main Process: com.example.usuari.myapplication3, PID: 6390 java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.usuari.myapplication3/com.example.usuari.myapplication3.ViatgeDetallViewActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void com.google.android.gms.maps.SupportMapFragment.getMapAsync(com.google.android.gms.maps.OnMapReadyCallback)' on a null object reference at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3254) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3350) at android.app.ActivityThread.access$1100(ActivityThread.java:222) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1795) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:158) at android.app.ActivityThread.main(ActivityThread.java:7229) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120) Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'void com.google.android.gms.maps.SupportMapFragment.getMapAsync(com.google.android.gms.maps.OnMapReadyCallback)' on a null object reference at com.example.usuari.myapplication3.ViatgeDetallViewFragment.onCreateView(ViatgeDetallViewFragment.java:82) at android.support.v4.app.Fragment.performCreateView(Fragment.java:2074) at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1104) at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1286) at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:758) at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1671) at android.support.v4.app.FragmentController.execPendingActions(FragmentController.java:388) at android.support.v4.app.FragmentActivity.onStart(FragmentActivity.java:619) at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1265) at android.app.Activity.performStart(Activity.java:6915) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3217) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3350) at android.app.ActivityThread.access$1100(ActivityThread.java:222) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1795) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:158) at android.app.ActivityThread.main(ActivityThread.java:7229) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120) 03-24 02:55:53.871 6390-7362/com.example.usuari.myapplication3 W/DynamiteModule: Local module descriptor class for com.google.android.gms.googlecertificates not found. 03-24 02:55:53.881 6390-7362/com.example.usuari.myapplication3 I/DynamiteModule: Considering local module com.google.android.gms.googlecertificates:0 and remote module com.google.android.gms.googlecertificates:2 03-24 02:55:53.881 6390-7362/com.example.usuari.myapplication3 I/DynamiteModule: Selected remote version of com.google.android.gms.googlecertificates, version
= 2 03-24 02:55:53.881 6390-7362/com.example.usuari.myapplication3 W/ResourcesManager: getTopLevelResources: /data/user/0/com.google.android.gms/app_chimera/m/00000005/DynamiteModulesA_GmsCore_prodmnc_alldpi_release.apk / 1.0 running in com.example.usuari.myapplication3 rsrc of package com.example.usuari.myapplication3 03-24 02:55:53.891 6390-7362/com.example.usuari.myapplication3 D/ResourcesManager: For user 0 new overlays fetched Null 03-24 02:55:53.891 6390-7362/com.example.usuari.myapplication3 W/ResourcesManager: getTopLevelResources: /data/user/0/com.google.android.gms/app_chimera/m/00000005/DynamiteModulesA_GmsCore_prodmnc_alldpi_release.apk / 1.0 running in com.example.usuari.myapplication3 rsrc of package com.example.usuari.myapplication3