在列表中显示框数

Question

我有一个下拉菜单，我要显示从此列表中选择的盒子数。例如，如果我选择1，则仅会出现1个框。我试图通过更改可见性来做到这一点，但这不起作用

EditText editText5 = (EditText) findViewById(R.id.editText5);

public void oneBox(){
    editText5.setVisibility(View.GONE);
}
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    final Spinner dropdown = findViewById(R.id.spinner1);
    String[] items = new String[]{"1","2","3","4","5","6"};
    ArrayAdapter<String> adapter = new ArrayAdapter<>(this, android.R.layout.simple_spinner_dropdown_item, items);
    dropdown.setAdapter(adapter);

    dropdown.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
       @Override
       public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
           if (position==0){
               oneBox();
           }

       }

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

       }
   });

}