My extension is compiling but after use in app,it is showing runtime error

Open Source Development Extension Development
1

I was currently working to build my next extension ArrayFunctions.
While making block of removing an item from the list, first I take Yailist list from the user then I converted it into String array then I converted that String array to Array list to perform remove. It is finely compiling with no problem but it is not performing any task in-app and giving an error:
Here is my code:

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image766×310 18.6 KB

@SimpleFunction(description=“Remove element from index.It pass the list.”)
//At first i take a input of list and position from user
public YailList RemoveElementFromPosition(YailList list,int position){
//Then i converted it into the String array
String arraylist=list.toStringArray();
//Then i converted this String array to Array list to perform the remove function
List listcopy=Arrays.asList(arraylist);
//Then i remove the element in position -1 whcih is index
listcopy.remove(position-1);
//Then i again converted the array list to array so that i can change it into Yailist
Object arrayout=listcopy.toArray();
//At last i returned the list by converting the array into the Yailist.
return YailList.makeList(arrayout);

The error is like that:
image

Here is my extension:com.appybuilder.mailtoosea.Testonly.aix (5.3 KB)

2

List does not support removing objects.
So convert YailList into ArrayList.

2 Likes
3

As said use this code to convert yail list named list to array named arrayer

@SimpleFunction
    public void example(YailList list) {
        String[] arrayer = new string[list.size()];
        int index = 0;
        for(String e : list.toStringArray()) {
            arrayer[index] = e;
            index++;
        }
    }

Now in the variable called arrayer you have the value.

4

@HIFI_APPS what result will the arrayer return?

5

You're parsing them to Integer. If you put a list with characters then you will get an error.

2 Likes
6

@oseamiya you must not use list if you are using integers in your extension

7

edited post

8

Only example it will convert not return

9

How can you save String data in int array :sweat_smile: :laughing:

1 Like
10

Please test you're code before posting it.

2 Likes
11

I can't in mobile but re edited

12

Again :sweat_smile:. How can you assign int array value to string array? :laughing: :expressionless:

2 Likes
13

Array and ArrayList are different.
This should work fine:

List list = new ArrayList<>();
String[] sArray = yailList.toStringArray();
for (String s:sArray){
  list.add(s);
}
list.remove(index - 1);//now you can add and remove items
2 Likes
14 
@SimpleFunction
    public void Example(YailList list) {
        Object[] arrayer = new Object[list.size()];
        int index = 0;
        for(Object e : list.toArray()) {
            arrayer[index] = e;
            index++;
        }
    }

Try this for all type of things to array

15

The object must be Object

16

Hmm, @HIFI_APPS it's better if you use a laptop :confused:

1 Like
17

@HIFI_APPS Think you need to learn more :confused:

2 Likes
18

btw, what's the point of adding index++

19

@vknow360 i edited yes will it work

List list = new ArrayList<>();
Object[] sArray = yailList.toArray();
for (Object s:sArray){
  list.add(s);
}

And

(String) s

To convert to string ...

20

#Off topic
Yes I need to learn actually I copy pasted
Ur post

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