How to read ArrayList<String> from a specific row

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

azro · Accepted Answer · 2021-07-06 20:06:59Z

2

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);

answered Jul 6, 2021 at 20:06

azro

54.2k9 gold badges38 silver badges75 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

Georges GRESSIEN Over a year ago

Thank you for your reply. In fact this is my problem,. Indeed, In the previous activity i've defined an ArrayList<ArrayList<String>>. I've tried to do a putExtra of my ArrayList<ArrayList<String>> and then in the last activity, the only solution i've found is to use a Bundle for the getStringExtra. In this case is not possible to use an ArrayList<ArrayList<String>> but an ArrayList<String> and i don't know what to do

azro Over a year ago

@GeorgesGRESSIEN I really don't understand what you want now ^^

Collectives™ on Stack Overflow

How to read ArrayList<String> from a specific row

1 Answer 1

2 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

2 Comments

Your Answer

Sign up or log in

Post as a guest

Related