ArrayList Pagination

kakooo16 — Mon, 05 Oct 2020 14:49:39 GMT

Hello ,

I have a little issue to get my second iteration in the list below

My list : [1, 2 ,3, 4, 5, 6 , 7 ,8, 9, 10, 11, 12]

Here is my code to get the first 3 items :

int endOf = (context.offset)+3;

ArrayList<String> ids2 = new ArrayList<String>(ids.subList(context.offset, endOf));

System.out.println(ids2) ;

With my initialisation of context.offset = 0 .

*** Here is the result :

[1, 2, 3]

Now i would like to get the second iteration :

[4, 5, 6] and the third iteration : [7, 8, 9] and the rest of the iteration until my list is done .

How to do so ?

Thanks in advance .

Re: ArrayList Pagination

cadap — Mon, 05 Oct 2020 18:53:17 GMT

Hi,

You can do it like this:

Here as text:

//initialize list

List<String> ids = new ArrayList<>();

for (int i=1;i<=12;i++){

ids.add(String.valueOf(i));

}

//inititalize vars

int split_every = 3;

int count = 0;

//logic

for (String s: ids){

count++;

if (count % split_every == 0){

List<String> ids2 = new ArrayList<>(ids.subList(count-split_every, count));

System.out.println(ids2);

}

output:

[1, 2, 3]

[4, 5, 6]

[7, 8, 9]

[10, 11, 12]