如何读取ArrayList<String> 从特定行

Question

I am trying to read a specific row and column from an ArrayList<String> to display it in a textview.

In a previous activity I read a Firebase table and stored all information selected by the user in an ArrayList<String> . I do a putExtra , and I recover all data by a Bundle . The ArrayList<String> recovered seems correct. But now I don't know what to do to read this ArrayList .

I've looked at different solutions in Stack Overflow and Github without success.

Have you any idea?

Result of ArrayList

Answer 1

From your picture, it seems you don't have an ArrayList<String> but rather a ArrayList<ArrayList<String>>

To access it, use .get(index)

ArrayList<ArrayList<String>> ContenuAnnonceA;
int i=1, j=2;
String s = ContenuAnnonceA.get(i).get(j);