title: Show every qr code scan result as listview in another activity
body: <p>I am making a scanner where scan result will be saved in another activity. So, i used intent putextra in scanner activity &amp; string getextra in another activity. In another activity, scan result will be displayed in listview.. So i have declared an arraylist for strings. First result is coming in another activity without problem. But when second result comes, the first result is replaced. I want to show every result in listview as like history. What I need to do?? Please help..</p>