fragments: Be extra paranoid about the binding getting destroyed

Signed-off-by: Samuel Holland <samuel@sholland.org>

app/src/main/java/com/wireguard/android/fragment/TunnelListFragment.java

@@ -130,6 +130,7 @@ public class TunnelListFragment extends BaseFragment {
 
     public void onRequestCreateConfig(@SuppressWarnings("unused") final View view) {
         startActivity(new Intent(getActivity(), TunnelCreatorActivity.class));
+        if (binding != null)
             binding.createMenu.collapse();
     }
 
@@ -138,6 +139,7 @@ public class TunnelListFragment extends BaseFragment {
         intent.addCategory(Intent.CATEGORY_OPENABLE);
         intent.setType("*/*");
         startActivityForResult(intent, REQUEST_IMPORT);
+        if (binding != null)
             binding.createMenu.collapse();
     }
 
@@ -261,6 +263,7 @@ public class TunnelListFragment extends BaseFragment {
                                        final int position, final long id) {
             if (actionMode != null)
                 return false;
+            if (binding != null)
                 binding.tunnelList.setItemChecked(position, true);
             return true;
         }
@@ -268,6 +271,7 @@ public class TunnelListFragment extends BaseFragment {
         @Override
         @SuppressLint("ClickableViewAccessibility")
         public boolean onTouch(final View view, final MotionEvent motionEvent) {
+            if (binding != null)
                 binding.createMenu.collapse();
             return false;
         }