message: Removed unused imports and vars
diff: package com.navigation.reactnative;
  -import android.app.Activity;
  import android.content.Context;
  -import android.os.Build;
  import android.view.MotionEvent;
  import android.view.View;
  import android.view.ViewGroup;
  -import android.view.ViewParent;
  import androidx.annotation.NonNull;
  import androidx.annotation.Nullable;
  import androidx.coordinatorlayout.widget.CoordinatorLayout;
  -import androidx.fragment.app.Fragment;
  -import androidx.fragment.app.FragmentActivity;
  import androidx.fragment.app.FragmentManager;
  -import androidx.fragment.app.FragmentPagerAdapter;
  -import androidx.fragment.app.FragmentTransaction;
  import androidx.viewpager.widget.PagerAdapter;
  import androidx.viewpager.widget.ViewPager;
  @@ -127,12 +120,9 @@ public class TabBarView extends ViewPager {
  private class Adapter extends PagerAdapter {
  private List<TabBarItemView> tabs = new ArrayList<>();
  - FragmentManager fragmentManager;
  void addTab(TabBarItemView tab, int index) {
  tabs.add(index, tab);
  - //if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP)
  - // tab.setElevation(-1 * index);
  notifyDataSetChanged();
  }
  