import android.app.FragmentTransaction;
import android.content.Intent;
import android.os.Bundle;
-import android.support.v13.app.FragmentPagerAdapter;
-import android.support.v4.view.ViewPager;
+import androidx.legacy.app.FragmentPagerAdapter;
+import androidx.viewpager.widget.ViewPager;
import android.view.Menu;
import android.view.MenuItem;
import android.view.ViewGroup;