How to Pass Item Information to Cart Tab and Show in a ListView

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http://stackoverflow.com – I am making an Order System, in which i am allowing user to select an item to buy and then move to cart tab to browse their Ordered Item(s) I have used AlertDialogBox in Menus.java, once user will click on item row, it will ask to buy or not, and once user will click on ADD TO CART, here i need to pass Item information to Cart Tab, in Cart Tab i am using ListView to show Ordered Items.... But problem is i am not getting list of ordered items, getting blank...need help I guess, i am doing a small mistake but don't what and how to resolve,please help... Menus.java: public void onItemClick(A (HowTos)