Load Empty Spinner

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By generating a Spinner, it brings the first value of ArrayList generated already selected.

How do I bring it "empty" ?

The best option would be to populate it with a function onClick instead of doing it in onCreate, for example ?

java android

1 answer

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You can add an empty field before popular with the array, this same index being 0 you can also use as validation if the user has not selected any option.

Example:

ArrayList<String> meuArray = new ArrayList<>();
meuArray.add("");

//Popular array

mSpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
    @Override
    public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
        if (position == 0)
            //Não selecionou
        else
            //Selecionou
    }

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

    }
});

I hope it helps.

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