getSelectedItem() from ListView on button click

Question

I am trying to retrieve the selected item of a ListView when user clicks a button. I am using the below code in setOnItemClickListener:

lvequipments.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {

            Object o = lvequipments.getItemAtPosition(i);
            CustomerEquipmentView customerEquipmentView = (CustomerEquipmentView)o;
            Product product = workOrderPresenter.getCustomerModel().getProduct(customerEquipmentView);

            Toast.makeText(getBaseContext(), customerEquipmentView.getModelName(), Toast.LENGTH_LONG).show();

        }
    });

And the toast is successfully getting the model name from the object when I select different items in the ListView. Outside the ListView I have a button that saves some data from a different panel. I am attempting to retrieve the ListView item again here like so

public void saveToDatabase() {
        Object o = lvequipments.getSelectedItem();
        CustomerEquipmentView customerEquipmentView = (CustomerEquipmentView)o;
        ...
}

But o is null. Evaluating lvequipments.getSelectedItem() at a breakpoint during run also gives null. How do I successfully retrieve the selected item from the ListView from outside the onItemClick() method?

why do you expect `getSelectedItem` to return anything? Is something selected in your listview? — njzk2, Dec 21 '16 at 20:24
When you click on item in listview doesn't that become the selected? — wizloc, Dec 21 '16 at 20:27
no. it the listview is in a CHOICE_MODE that is not NONE, it can become checked. — njzk2, Dec 21 '16 at 20:30

score 1 · Accepted Answer · answered Dec 21 '16 at 20:17

1

define an int field in class, like int SelectedItemIndex
in onItemSelected(...) method write SelectedItemIndex = i
in savetodatabase method get the selected element by lvequipments.getItemAtPosition(SelectedItemIndex); that what you want i think

answered Dec 21 '16 at 20:17

Mean Coder

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1
12

Is this the only way? Why doesn't getSelectedItem() work, it seems like that should be a painless way to retrieve selected item – wizloc Dec 21 '16 at 20:21
I am still new to android so I am not sure exact differences between two handlers, but referring to this answer http://stackoverflow.com/questions/26399757/android-listview-get-the-selected-item he says onItemClick is better for tablet. At any rate your answer is working for me – wizloc Dec 21 '16 at 20:35

getSelectedItem() from ListView on button click

1 Answers1