Loop of images in ImageView

MainActivity.java

 @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        luup();
    }

    void luup() {
        Integer[] i = {
                R.drawable.chloe001,
                R.drawable.chloe002,
                R.drawable.chloe003,
                R.drawable.chloe004,
                R.drawable.chloe005,
                R.drawable.chloe006,
                R.drawable.chloe007
        };

        Random r = new Random();
        ImageView iview = findViewById(R.id.IView);


        final Handler handler = new Handler();
        handler.post(new Runnable() {
            public void run() {
                int randomNum = r.nextInt(7);
                iview.setImageResource(i[randomNum]);
                String ts = "Chloe " + randomNum;
                setTitle(ts);
                handler.postDelayed(this, 1000);
            }
        });
    }