看过小说都知道小说阅读器翻页有好多种效果，比如仿真翻页，滑动翻页，等等。由于某种原因，突然想写一个简单点的滑动翻页效果。在这里写出来也没有什么意图，希望大家可以根据这个效果举一反三，写出其他的效果。图就不上了。

下面是代码：大家理解onTouch事件即可

package com.example.testscroll.view;

import android.content.Context;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.VelocityTracker;
import android.view.View;
import android.view.ViewConfiguration;
import android.view.ViewGroup;
import android.widget.Scroller;

public class FlipperLayout extends ViewGroup {

	private Scroller mScroller;
	private VelocityTracker mVelocityTracker;

	private int mVelocityValue = http://www.mamicode.com/0;>
Activity测试文件：
package com.example.testscroll;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;

import android.app.Activity;
import android.content.res.AssetManager;
import android.os.Bundle;
import android.os.Handler;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.TextView;

import com.example.testscroll.view.FlipperLayout;
import com.example.testscroll.view.FlipperLayout.TouchListener;
import com.example.testscrollactivity.R;

public class MainActivity extends Activity implements OnClickListener, TouchListener {

	private String text = "";
	private int textLenght = 0;

	private static final int COUNT = 400;

	private int currentTopEndIndex = 0;

	private int currentShowEndIndex = 0;

	private int currentBottomEndIndex = 0;

	private Handler handler = new Handler() {
		public void handleMessage(android.os.Message msg) {
			FlipperLayout rootLayout = (FlipperLayout) findViewById(R.id.container);
			View recoverView = LayoutInflater.from(MainActivity.this).inflate(R.layout.view_new, null);
			View view1 = LayoutInflater.from(MainActivity.this).inflate(R.layout.view_new, null);
			View view2 = LayoutInflater.from(MainActivity.this).inflate(R.layout.view_new, null);
			rootLayout.initFlipperViews(MainActivity.this, view2, view1, recoverView);

			textLenght = text.length();

			System.out.println("----textLenght----->" + textLenght);

			TextView textView = (TextView) view1.findViewById(R.id.textview);
			if (textLenght > COUNT) {
				textView.setText(text.subSequence(0, COUNT));
				textView = (TextView) view2.findViewById(R.id.textview);
				if (textLenght > (COUNT << 1)) {
					textView.setText(text.subSequence(COUNT, COUNT * 2));
					currentShowEndIndex = COUNT;
					currentBottomEndIndex = COUNT << 1;
				} else {
					textView.setText(text.subSequence(COUNT, textLenght));
					currentShowEndIndex = textLenght;
					currentBottomEndIndex = textLenght;
				}
			} else {
				textView.setText(text.subSequence(0, textLenght));
				currentShowEndIndex = textLenght;
				currentBottomEndIndex = textLenght;
			}
		};
	};

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		new ReadingThread().start();
	}

	@Override
	public void onClick(View v) {

	}

	@Override
	public View createView(final int direction) {
		String txt = "";
		if (direction == TouchListener.MOVE_TO_LEFT) {
			currentTopEndIndex = currentShowEndIndex;
			final int nextIndex = currentBottomEndIndex + COUNT;
			currentShowEndIndex = currentBottomEndIndex;
			if (textLenght > nextIndex) {
				txt = text.substring(currentBottomEndIndex, nextIndex);
				currentBottomEndIndex = nextIndex;
			} else {
				txt = text.substring(currentBottomEndIndex, textLenght);
				currentBottomEndIndex = textLenght;
			}
		} else {
			currentBottomEndIndex = currentShowEndIndex;
			currentShowEndIndex = currentTopEndIndex;
			currentTopEndIndex = currentTopEndIndex - COUNT;
			txt = text.substring(currentTopEndIndex - COUNT, currentTopEndIndex);
		}

		View view = LayoutInflater.from(this).inflate(R.layout.view_new, null);
		TextView textView = (TextView) view.findViewById(R.id.textview);
		textView.setText(txt);

		System.out.println("-top->" + currentTopEndIndex + "-show->" + currentShowEndIndex + "--bottom-->" + currentBottomEndIndex);
		return view;
	}

	@Override
	public boolean whetherHasPreviousPage() {
		return currentShowEndIndex > COUNT;
	}

	@Override
	public boolean whetherHasNextPage() {
		return currentShowEndIndex < textLenght;
	}

	@Override
	public boolean currentIsFirstPage() {
		boolean should = currentTopEndIndex > COUNT;
		if (!should) {
			currentBottomEndIndex = currentShowEndIndex;
			currentShowEndIndex = currentTopEndIndex;
			currentTopEndIndex = currentTopEndIndex - COUNT;
		}
		return should;
	}

	@Override
	public boolean currentIsLastPage() {
		boolean should = currentBottomEndIndex < textLenght;
		if (!should) {
			currentTopEndIndex = currentShowEndIndex;
			final int nextIndex = currentBottomEndIndex + COUNT;
			currentShowEndIndex = currentBottomEndIndex;
			if (textLenght > nextIndex) {
				currentBottomEndIndex = nextIndex;
			} else {
				currentBottomEndIndex = textLenght;
			}
		}
		return should;
	}

	private class ReadingThread extends Thread {
		public void run() {
			AssetManager am = getAssets();
			InputStream response;
			try {
				response = am.open("text.txt");
				if (response != null) {
					ByteArrayOutputStream baos = new ByteArrayOutputStream();
					int i = -1;
					while ((i = response.read()) != -1) {
						baos.write(i);
					}
					text = new String(baos.toByteArray(), "UTF-8");
					baos.close();
					response.close();
					handler.sendEmptyMessage(0);
				}
			} catch (IOException e) {
				e.printStackTrace();
			}

		}
	}

}

xml布局文件：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="horizontal" >

    <TextView
        android:id="@+id/textview"
        android:layout_width="0dp"
        android:layout_height="match_parent"
        android:layout_weight="1.0"
        android:background="#666666"
        android:gravity="center"
        android:text="新建的View"
        android:textColor="@android:color/white"
        android:textSize="16sp"
        android:visibility="visible" />

    <View
        android:layout_width="5dp"
        android:layout_height="match_parent"
        android:background="#FFFF00"
        android:gravity="center"
        android:textSize="25sp"
        android:visibility="visible" />

</LinearLayout>

activity布局文件：
<com.example.testscroll.view.FlipperLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/container"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

</com.example.testscroll.view.FlipperLayout>

备注：上面为什么加一个速率计算器呢，其实只是为了识别这个动作是不是快速滑动的动作，就算滑动的距离不到屏幕的1/3，但是只要速率满足都可以判定改滑动是一个翻页的动作。
注意哦：这只是其中一个滑动的效果而已啊，不包括小说分章节的逻辑哦。虽然有些粗糙，但是还是有可以值得学习的地方，大家如果还有什么好的解决方案，可以一起讨论。