Merge "Prevent slide-in animation on history pulldown." into ub-calculator-euler

import android.animation.Animator;

import android.animation.ObjectAnimator;

import android.app.Fragment;

import android.app.FragmentTransaction;

import android.os.Bundle;

import android.support.v7.widget.RecyclerView;

import android.util.Log;

import android.view.LayoutInflater;

import android.view.MenuItem;

import android.view.MotionEvent;

        final View view = getView();

        final int height = getResources().getDisplayMetrics().heightPixels;

        if (enter) {

            if (transit == FragmentTransaction.TRANSIT_FRAGMENT_OPEN) {

                return ObjectAnimator.ofFloat(view, View.TRANSLATION_Y, -height, 0f);

            } else {

                return null;

            }

        } else {

            return ObjectAnimator.ofFloat(view, View.TRANSLATION_Y, -height);

        }