package com.team.zhuoke.ui.dialog.genderselector;
import android.database.DataSetObserver;
import android.view.View;
import android.view.ViewGroup;
/**
* Wheel items adapter interface
*/
public interface WheelViewAdapter {
/**
* Gets items count
* @return the count of wheel items
*/
public int getItemsCount();
/**
* Get a View that displays the data at the specified position in the data set
*
* @param index the item index
* @param convertView the old view to reuse if possible
* @param parent the parent that this view will eventually be attached to
* @return the wheel item View
*/
public View getItem(int index, View convertView, ViewGroup parent);
/**
* Get a View that displays an empty wheel item placed before the first or after
* the last wheel item.
*
* @param convertView the old view to reuse if possible
* @param parent the parent that this view will eventually be attached to
* @return the empty item View
*/
public View getEmptyItem(View convertView, ViewGroup parent);
/**
* Register an observer that is called when changes happen to the data used by this adapter.
* @param observer the observer to be registered
*/
public void registerDataSetObserver(DataSetObserver observer);
/**
* Unregister an observer that has previously been registered
* @param observer the observer to be unregistered
*/
void unregisterDataSetObserver(DataSetObserver observer);
}