Animate a view using ObjectAnimator from left-to-right upto half of screen and inverse (right-to-left)

main_layout.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/sms_linear_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <ImageView
        android:id="@+id/img_android"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:src="@mipmap/ic_launcher" />

</LinearLayout>

MainActivity.java

package com.pavneet.myapplication;

import android.animation.AnimatorSet;
import android.animation.ObjectAnimator;
import android.graphics.Point;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.Toolbar;
import android.view.Display;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;

/**
 * Created by Pavneet Singh on 9/20/2016.
 * Email pavneet.edu@gmail.com
 */
 
public class MainActivity extends AppCompatActivity {

    private ObjectAnimator lftToRgt,rgtToLft;
    private ImageView imageView;
    private float halfW;
    private  AnimatorSet animatorSet;//required to set the sequence
    
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main_layout);
        Display display = getWindowManager().getDefaultDisplay();
        Point point=new Point();
        display.getSize(point);
        final int width = point.x; // screen width
        halfW = width/2.0f; // half the width or to any value required,global to class
        initializeUI();
    }

    void initializeUI(){
        imageView = (ImageView) findViewById(R.id.img_android);
        animatorSet = new AnimatorSet();
        imageView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                anim();// call to animate function
            }
        });
    }

    void anim(){
        // translationX to move object along x axis
        // next values are position value
        lftToRgt = ObjectAnimator.ofFloat( imageView,"translationX",0f,halfW )
                .setDuration(700); // to animate left to right
        rgtToLft = ObjectAnimator.ofFloat( imageView,"translationX",halfW,0f )
                .setDuration(700); // to animate right to left

        animatorSet.play( lftToRgt ).before( rgtToLft ); // manage sequence
        animatorSet.start(); // play the animation
    }
}