如何从ListView获取选定的项目值

Question

I have created a simple ListView with CheckBox for each item. I want the user to select some of the items. How to get selected Items values by the user from this ListView and store them in for example in an ArrayList ?

 ArrayList<String>  tablesName = new ArrayList<>();

    tablesName.add("one");
    tablesName.add("two");
    tablesName.add("three");
    tablesName.add("four");


    arrayAdapter = new ArrayAdapter<>(this,android.R.layout.simple_list_item_multiple_choice, tablesName);

     var_tablesName_LV.setAdapter(arrayAdapter);
     var_tablesName_LV.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);

    var_tablesName_LV.setOnItemSelectedListener(new  AdapterView.OnItemSelectedListener() {
        @Override
        public void onItemSelected(AdapterView<?> adapterView, View view, int i, long l) {


         }

        @Override
        public void onNothingSelected(AdapterView<?> adapterView) {

        }
    });




}

Answer 1

Define a List like this globally :

 public static List<String> selectedValue = new ArrayList<String>() ;

then in OnItemClickListener write like this :

 var_tablesName_LV.setOnItemSelectedListener(new OnItemClickListener() {

    @Override
    public void onItemSelected(AdapterView<?> adapterView, View view, int i, long l) {
    String clickedvalue =(String) adapterView.getItemAtPosition(i); 
         selectedValue.add(clickedvalue);

     }

Now all clicked value present in the ListArray , I Hope it helps !.

Answer 2

您可以在下面执行以下操作：

      ThreeStrings your strings = (yourString)AdapterView.getItemAtPosition(position);