Fixed soft keyboard bug

Author: animeshk08

app/src/main/java/fr/free/nrw/commons/contributions/MainActivity.java

@@ -180,7 +180,7 @@ public void onPageSelected(int position) {
                         Timber.d("Contributions tab selected");
                         tabLayout.getTabAt(CONTRIBUTIONS_TAB_POSITION).select();
                         isContributionsFragmentVisible = true;
-                        ViewUtil.hideKeyboard(tabLayout.getRootView());
+                        ((NearbyParentFragment)contributionsActivityPagerAdapter.getItem(NEARBY_TAB_POSITION)).hideKeyboard();
                         updateMenuItem();
                         break;
                     case NEARBY_TAB_POSITION:

app/src/main/java/fr/free/nrw/commons/nearby/fragments/NearbyParentFragment.java

@@ -1,6 +1,7 @@
 package fr.free.nrw.commons.nearby.fragments;
 
 import android.Manifest;
+import android.app.Activity;
 import android.app.AlertDialog;
 import android.content.BroadcastReceiver;
 import android.content.Context;
@@ -9,14 +10,15 @@
 import android.content.res.Configuration;
 import android.graphics.Bitmap;
 import android.os.Bundle;
-import android.text.TextUtils;
+import android.os.IBinder;
 import android.util.Log;
 import android.view.Gravity;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.view.animation.Animation;
 import android.view.animation.AnimationUtils;
+import android.view.inputmethod.InputMethodManager;
 import android.widget.Button;
 import android.widget.ImageView;
 import android.widget.LinearLayout;
@@ -598,9 +600,34 @@ public void centerMapToPlace(Place place) {
         }
     }
 
-    @Override
-    public void updateListFragment(List<Place> placeList) {
-        adapterFactory.updateAdapterData(placeList, (RVRendererAdapter<Place>) rvNearbyList.getAdapter());
+    /**
+     * Hides the keyboard in case the tab is switched
+     */
+    public void hideKeyboard(){
+        if(!searchView.isIconified()) {
+            searchView.clearFocus();
+            InputMethodManager imm = (InputMethodManager) getActivity().getSystemService(Activity.INPUT_METHOD_SERVICE);
+            final IBinder windowToken = this.getView().getRootView().getWindowToken();
+            if (view != null) {
+                imm.hideSoftInputFromWindow(windowToken, InputMethodManager.HIDE_NOT_ALWAYS);
+            }
+        }
+    }
+
+
+    /**
+     * Thanks to this method we make sure NearbyMapFragment is ready and attached. So that we can
+     * prevent NPE caused by null child fragment. This method is called from child fragment when
+     * it is attached.
+     */
+    private void childMapFragmentAttached() {
+        Timber.d("Child map fragment attached");
+        nearbyParentFragmentPresenter = NearbyParentFragmentPresenter.getInstance
+                (nearbyListFragment,this, nearbyMapFragment, locationManager);
+        nearbyParentFragmentPresenter.nearbyFragmentsAreReady();
+        initViews();
+        nearbyParentFragmentPresenter.setActionListeners(applicationKvStore);
+        initNearbyFilter();
     }
 
     @Override