如何从 ListView 获取项目并将这些项目转换为 ArrayList？

Question

How can I get the items from a ListView and convert them to an ArrayList ?

Screenshot: (in mConversationArrayAdapter must go the arraylist)

Answer 1

You have to create a method in your adapter that gets the arrayList and then call that method where you need the data.

Something like this,

 public ArrayList<String> getData(){ return this.arrayList; }

Answer 2

You have to create a method in the adapter to get the values like this:

public Object getItem(int position) {
        return mConversationArrayAdapter.get(position);
    }

Or get theem directly in your class.

But if you want to display the list, you must use " RecyclerView " is better than ListView.

Answer 3

You should try like this.

ListView listView = new ListView();

    listView.getItems().add("Item1;");
    listView.getItems().add("Item;2");
    listView.getItems().add("Item3;");

     for (int i=0;i<listView.getItems().size();i++){
         String currentLine= (String) listView.getItems().get(i);
         String[] cells=currentLine.split(";");
         System.out.println(currentLine);
         System.out.println(Arrays.toString(cells));
    }