title: How to correctly overwrite methods of SpinnerAdapter
body: <p>Im using a SpinnerAdapter to display a Spinner. For that i defined a class which implements SpinnerAdapter. Unfortunately I don't know how to override some methods of SpinnerAdapter:</p>
  
  <pre><code>@Override
  public View getDropDownView(int position, View arg1, ViewGroup arg2) {
  
  }
  
  
  @Override
  public int getItemViewType(int arg0) {
  
  }
  
  @Override
  public boolean hasStableIds() {
  
  }
  
  @Override
  public void registerDataSetObserver(DataSetObserver arg0) {
  
  }
  
  @Override
  public void unregisterDataSetObserver(DataSetObserver observer) {
  
  }
  </code></pre>
  
  <p>Does anybody know what i have to code in each of these methods?</p>