MyHorizontalScrollView.java

package com.bestapp.yikuair.customview;

import com.bestapp.yikuair.utils.OnScrollListener;

import android.content.Context;
import android.util.AttributeSet;
import android.util.Log;
import android.view.View;
import android.widget.HorizontalScrollView;

public class MyHorizontalScrollView extends HorizontalScrollView {
	public MyHorizontalScrollView(Context context) {
		super(context);
	}

	public MyHorizontalScrollView(Context context, AttributeSet attrs) {
		super(context, attrs);

	}

	public MyHorizontalScrollView(Context context, AttributeSet attrs,
			int defStyle) {
		super(context, attrs, defStyle);
		// TODO Auto-generated constructor stub
	}

	@Override
	protected void onScrollChanged(int l, int t, int oldl, int oldt) {
		View view = (View) getChildAt(getChildCount() - 1);
		// int diff = (view.getLeft()-getScrollX());//
		// 如果为0，证明滑动到最左边
		// int diff = (view.getRight()-(getWidth()+getScrollX()));//
		// 如果为0证明滑动到最右边
		if (view.getLeft() - getScrollX() == 0) {// 如果为0，证明滑动到最左边
			onScrollListener.onLeft();
			Log.d("TAG", "最左边");
		} else if ((view.getRight() - (getWidth() + getScrollX())) == 0) {// 如果为0证明滑动到最右边
			onScrollListener.onRight();
			Log.d("TAG", "最右边");
		} else {// 说明在中间
			onScrollListener.onScroll();
			Log.d("TAG", "中间");
		}
		super.onScrollChanged(l, t, oldl, oldt);
	}

	/**
	 * 定义接口
	 * 
	 * @author admin
	 * 
	 */
	// public interface OnScrollListener1{
	// void onRight();
	// void onLeft();
	// void onScroll();
	// }
	private OnScrollListener onScrollListener;

	public void setOnScrollListener(OnScrollListener onScrollListener) {
		this.onScrollListener = onScrollListener;
	}
}