content: package cn.addapp.pickers.adapter;
  
  
  /**
   * Numeric Wheel adapter.
   * @author matt
   * blog: addapp.cn
   */
  public class NumericWheelAdapter implements WheelAdapter {
  	
  	/** The default min value */
  	public static final int DEFAULT_MAX_VALUE = 9;
  
  	/** The default max value */
  	private static final int DEFAULT_MIN_VALUE = 0;
  	
  	// Values
  	private int minValue;
  	private int maxValue;
  
  	/**
  	 * Default constructor
  	 */
  	public NumericWheelAdapter() {
  		this(DEFAULT_MIN_VALUE, DEFAULT_MAX_VALUE);
  	}
  
  	/**
  	 * Constructor
  	 * @param minValue the wheel min value
  	 * @param maxValue the wheel max value
  	 */
  	public NumericWheelAdapter(int minValue, int maxValue) {
  		this.minValue = minValue;
  		this.maxValue = maxValue;
  	}
  
  	@Override
  	public Object getItem(int index) {
  		if (index >= 0 && index < getItemsCount()) {
  			int value = minValue + index;
  			return value;
  		}
  		return 0;
  	}
  
  	@Override
  	public int getItemsCount() {
  		return maxValue - minValue + 1;
  	}
  	
  	@Override
  	public int indexOf(Object o){
  		try {
  			return (int)o - minValue;
  		} catch (Exception e) {
  			return -1;
  		}
  
  	}
  }
  