Question

I have an ArrayList which get all it’s entries as strings from DB

List<Amthal> amthal = getAmthalSetFromDb(p);

I can get it’s size “how many strings it contains”

int i= amthal.size();

I want to view these strings in TextView one after the another by clicking next button to move to next one

I tried to view any string in that array list but I got an error… “get(i-1)” which must return last string in that array …

    tv.setText(amthal.get(i-1));

my question is how to retrieve and view these strings ? should I convert it to Array of strings or what??

Answer 1

You can solve your issue by using an counter varaible as :

public static int count=0;  //Declare it as class level varaible
yourbutton.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {

    if(count < amthal.size())
         {
              tv.setText(amthal.get(count).toString()); //set textView Text here
              count++;  // increase counter here
         }
         else{
            //Reset counter to 0
          }
    }
});