public class MainActivity extends AppCompatActivity {
private Spinner spinner1;
// nie wymusza niemutowalnosci
private ArrayAdapter<CharSequence> adapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
spinner1=findViewById(R.id.spinner1);
adapter=ArrayAdapter.createFromResource(this, R.array.elementy, androidx.appcompat.R.layout.support_simple_spinner_dropdown_item);
spinner1.setAdapter(adapter);
}
<string-array name="elementy">
<item>Czerwony</item>
<item>Zielony</item>
<item>Niebieski</item>
</string-array>
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