MapFragment hides everything in fragment

Question

Hi i am using navigation drawer in my project and multiple fragments. in 1 of my fragment i have mapfragment which is added dynamically.

Now when that fragment loads it hides every other views in parent fragment.

and when i click on other fragment and comes back to fragment which contains map.. Map is not visible.

Following is my Fragment xml

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MapActivity" 
    android:id="@+id/mapContainer">


    <LinearLayout 
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="horizontal">
    <Button android:id="@+id/btnSearch"
        android:text="Search"
        android:layout_height="wrap_content"
        android:layout_width="wrap_content"
        />
    <EditText android:id="@+id/etSearch"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:ems="10"
        android:hint="Search"/>
    </LinearLayout>
</FrameLayout>

and following is my java file for fragment.

public class MyRouteFragment extends Fragment {

    public MyRouteFragment(){}
    EditText etSearchValue;
    private LatLng myPos;
    UserData user;
    View rootView;
    GoogleMap mapView;
    MapFragment mapFragment;
    List<Marker> markers=new ArrayList<Marker>();
    LocationsDataSource lDataSource;
    public ProgressDialog pDialog=null;
    FragmentManager mFragmentManager;
    GoogleMapOptions options;
    String address,TAG="MyMapTag";
    Button btnSearch;

    public static MyRouteFragment newInstance(LatLng position){
        MyRouteFragment frag=new MyRouteFragment();
        frag.myPos=position;
        return frag;
    }

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

        rootView = inflater.inflate(R.layout.fragment_my_route, container, false);
        btnSearch=(Button) rootView.findViewById(R.id.btnSearch);
        etSearchValue=(EditText) rootView.findViewById(R.id.etSearch);
        mFragmentManager=getFragmentManager();

        mapFragment=(MapFragment) mFragmentManager.findFragmentByTag(TAG);
        if(mapFragment==null){
            mapFragment=MapFragment.newInstance();

            FragmentTransaction fragmentTransaction=mFragmentManager.beginTransaction();

            fragmentTransaction.add(R.id.mapContainer,mapFragment,TAG);

            fragmentTransaction.commit();
            }
            //btnSearch.getParent().bringChildToFront(btnSearch);
            /*btnSearch.invalidate();
            etSearchValue.invalidate();
            btnSearch.bringToFront();
            etSearchValue.invalidate();
            btnSearch.invalidate();
            */
            //container.removeView(btnSearch);
            //container.addView(btnSearch);
            //container.addView(etSearchValue);

        //mapFragment=(MapFragment) mFragmentManager.findFragmentById(R.id.map);

        mapView=mapFragment.getMap();
        if(mapView!=null){
            mapView.setPadding(0, 20, 0, 0);
            mapView.setMyLocationEnabled(true);

        }

        btnSearch.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                new getFormattedAddress().execute();
            }
        });

        //btnSearch.bringToFront();


        //etSearchValue.bringToFront();
        return rootView;
    }

Do you want your mapFragment to always be visible and the other Views in that layout also? — joao2fast4u, Jul 27 '14 at 17:13
Yes I want mapfragment to be visible and other views over it. — Paresh Dudhat, Jul 27 '14 at 17:16
Why do you need to call container.removeAllViews() and fragmentTransaction.remove(mapFragment); before adding the fragment? — joao2fast4u, Jul 27 '14 at 17:21
I just tried to to get all views properly but it didn't help — Paresh Dudhat, Jul 27 '14 at 17:22
Removed unnecessary lines. used mapfragment provided by Google.. com.google.android.gms.maps.MapFragment; — Paresh Dudhat, Jul 27 '14 at 17:26
Let us [continue this discussion in chat](http://chat.stackoverflow.com/rooms/58110/discussion-between-paresh-dudhat-and-joao2fast4u). — Paresh Dudhat, Jul 27 '14 at 17:29
Why don't you use findFragmentById() when calling your mapFragment and use findFragmentByTag, instead? — joao2fast4u, Jul 27 '14 at 17:29

score 3 · Accepted Answer · answered Jul 27 '14 at 18:23

For a start, you do not need to call container.removeAllViews() and fragmentTransaction.remove(mapFragment) before adding the MapFragment to the container.

You are inserting your MapFragment dynamically on the same container as all the other views. Your MapFragment is front of all the other views, inside the container,that is why you cannot see them.

You can have a child FrameLayout just to insert your MapFragment, inside your parent FrameLayout. Do not forget to add the android:id="@+id/mapContainer" to the child FrameLayout and remove it from the parent FrameLayout. This way, the other components are going to be visible.

I should warn you that you should not load a Fragment inside another Fragment, it is not recommended.

But having another issue. i am getting null value in mapView. So i made AsyncTask new AsyncTask(){ ProgressDialog pd; protected void onPreExecute() { pd= new ProgressDialog(getActivity()); pd.setTitle("Loading Map"); pd.setMessage("Please wait while we load map"); pd.setCancelable(false); pd.show(); }; @Override protected Void doInBackground(Void... params) { return null; } protected void onPostExecute(Void result) { while(mapView==null){ mapView=mapFragment.getMap(); mapView.setMyLocationEnabled(true); } if(pd.isShowing()){ pd.cancel(); } }; }.execute(); — Paresh Dudhat, Jul 27 '14 at 18:29

MapFragment hides everything in fragment

1 Answers1