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