package com.moral.andbrickslib.views;

import android.content.Context;
import android.util.AttributeSet;
import android.widget.ScrollView;

/**
 * 监听滑动的scrollView
 * @author  hjzhang
 * @version 创建时间：2015-9-27 下午10:30:18
 */
public class ObservableScrollView extends ScrollView {
	private ScrollViewListener scrollViewListener = null;  
	  
    public ObservableScrollView(Context context) {  
        super(context);  
    }  
  
    public ObservableScrollView(Context context, AttributeSet attrs,  
            int defStyle) {  
        super(context, attrs, defStyle);  
    }  
  
    public ObservableScrollView(Context context, AttributeSet attrs) {  
        super(context, attrs);  
    }  
  
    public void setScrollViewListener(ScrollViewListener scrollViewListener) {  
        this.scrollViewListener = scrollViewListener;  
    }  
  
    @Override  
    protected void onScrollChanged(int x, int y, int oldx, int oldy) {  
        super.onScrollChanged(x, y, oldx, oldy);  
        if (scrollViewListener != null) {  
            scrollViewListener.onScrollChanged(this, x, y, oldx, oldy);  
        }  
    }  
    
    public interface ScrollViewListener {  
        void onScrollChanged(ObservableScrollView scrollView, int x, int y, int oldx, int oldy);  
    }  
}