how to to send data when tab is selected or swipe?

Question

I make a simple example of tab view using fragment and pager .I want to send to send data from one fragment to another fragment when user use tab button. I will give you mor

Answer 1

In your first fragment named Fragmentone, do something like this:

    if(callBack!=null){
     callBack.sendData(yourDataArrayList);
}

After doing this see what are you getting in log.