I am trying to show the items on secondscreen but when I am calling
mSecondScreenService.showItem(sampleOrder.getItems(),
sampleOrder.getAmounts().getSubTotal(), “USD”);
It doesn’t show the secondscreen on screen.
I can see these logs 
05-30 00:18:24.274 16919-16919/com.labs108.poyntexample D/OrderItem: MEASURE_TIME Total write time 10 size:47 compressedSize:66
05-30 00:18:24.274 16919-16919/com.labs108.poyntexample D/OrderItem: MEASURE_TIME Total write time 0 size:47 compressedSize:66
05-30 00:18:24.274 16919-16919/com.labs108.poyntexample D/OrderItem: MEASURE_TIME Total write time 0 size:47 compressedSize:66
Am I doing anything wrong?
I have got the product list from my account and Now I want to add products to cart and then process the order with payment so what will be the flow here.
Any sample code would be appreciated.