Android自定义左右或上下滑动翻页效果

public class SlideScrollView extends ScrollView implements PageSlide{ 
 private TotalSlide totalSlide; 
 public SlideScrollView(AppCompatActivity context) { 
 super(context); 
 try { 
  totalSlide=new TotalSlide(this,context); 
 } catch (NoSuchMethodException e) { 
  e.printStackTrace(); 
 } 
 totalSlide.init(context); 
 totalSlide.linearLayout.setOrientation(totalSlide.linearLayout.VERTICAL); 
 this.setLayoutParams(totalSlide.params); 
 this.setVerticalScrollBarEnabled(false); 
 this.addView(totalSlide.linearLayout); 
 } 
 public float getScroll() { 
 return super.getScrollY(); 
 } 
 public void setScroll(Integer value) { 
 super.setScrollY(value); 
 } 
 @Override 
 public boolean onTouchEvent(MotionEvent ev) { 
 try { 
  return totalSlide.MyTouchEvent(ev); 
 } catch (InvocationTargetException e) { 
  e.printStackTrace(); 
 } catch (IllegalAccessException e) { 
  e.printStackTrace(); 
 } 
 return TouchEvent(ev); 
 } 
 public boolean TouchEvent(MotionEvent ev){ 
 return super.onTouchEvent(ev); 
 } 
 public TotalSlide getTotalSlide(){ 
 return this.totalSlide; 
 } 
} 

public class SlideHorizontalScrollView extends HorizontalScrollView implements PageSlide{ 
 private TotalSlide totalSlide; 
 public SlideHorizontalScrollView(AppCompatActivity context){ 
  super(context); 
  try { 
   totalSlide=new TotalSlide(this,context); 
  } catch (NoSuchMethodException e) { 
   e.printStackTrace(); 
  } 
  totalSlide.init(context); 
  totalSlide.linearLayout.setOrientation(totalSlide.linearLayout.HORIZONTAL); 
  this.setLayoutParams(totalSlide.params); 
  this.setHorizontalScrollBarEnabled(false); 
  this.addView(totalSlide.linearLayout); 
 } 
 public float getScroll() { 
  return getScrollX(); 
 } 
 public void setScroll(Integer value) { 
  setScrollX(value); 
 } 
 @Override 
 public boolean onTouchEvent(MotionEvent ev) { 
  try { 
   return totalSlide.MyTouchEvent(ev); 
  } catch (InvocationTargetException e) { 
   e.printStackTrace(); 
  } catch (IllegalAccessException e) { 
   e.printStackTrace(); 
  } 
  return TouchEvent(ev); 
 } 
 public boolean TouchEvent(MotionEvent ev){ 
  return super.onTouchEvent(ev); 
 } 
 public TotalSlide getTotalSlide(){ 
  return this.totalSlide; 
 } 
} 

package com.hy.View; 
import android.os.Handler; 
import android.support.annotation.LayoutRes; 
import android.support.v7.app.AppCompatActivity; 
import android.util.DisplayMetrics; 
import android.view.MotionEvent; 
import android.view.View; 
import android.view.WindowManager; 
import android.widget.LinearLayout; 
import java.lang.reflect.InvocationTargetException; 
import java.lang.reflect.Method; 
import java.util.ArrayList; 
import java.util.List; 
/** 
* 作用：实现上下左右滑动翻页，效果如 微信左右滑动效果 
*/ 
public interface PageSlide { 
public TotalSlide getTotalSlide(); 
public boolean TouchEvent(MotionEvent ev); 
public float getScroll(); 
public void setScroll(Integer value); 
class TotalSlide{ 
/** 
* 设置翻页速度 
* @param speed 速度，默认为20 
*/ 
public void setSpeed(float speed){ 
this.speed=speed; 
} 
TotalSlide(PageSlide pageSlide,AppCompatActivity context) throws NoSuchMethodException { 
this.pageSlide=pageSlide; 
this.context=context; 
WindowManager wm = context.getWindowManager(); 
if(pageSlide instanceof SlideHorizontalScrollView){ 
fill = wm.getDefaultDisplay().getWidth(); 
get=pageSlide.getClass().getMethod("getScroll"); 
set=pageSlide.getClass().getMethod("setScroll",Integer.class); 
//Toast.makeText(context,"TotalSlide:"+get.getName(),Toast.LENGTH_LONG).show(); 
}else if(pageSlide instanceof SlideScrollView){ 
fill = wm.getDefaultDisplay().getHeight(); 
get=pageSlide.getClass().getMethod("getScroll"); 
set=pageSlide.getClass().getMethod("setScroll",Integer.class); 
} 
} 
//初始化 
void init(AppCompatActivity context){ 
DisplayMetrics metrics = new DisplayMetrics(); 
context.getWindowManager().getDefaultDisplay().getMetrics(metrics); 
params = new LinearLayout.LayoutParams(metrics.widthPixels, metrics.heightPixels); 
linearLayout = new LinearLayout(context); 
linearLayout.setLayoutParams(params); 
} 
/** 
* 增加页面 
* @param layout 该页面的布局文件 
* @param myAppCompatActivity 该布局文件的java文件 
*/ 
public void addPage(@LayoutRes int layout, MyAppCompatActivity myAppCompatActivity){ 
View view=context.getLayoutInflater().inflate(layout,null); 
myAppCompatActivity.view=view; 
myAppCompatActivity.context=context; 
myAppCompatActivity.onCreate(); 
insertPage(view); 
} 
/** 
* 增加页面 
* @param layout 该页面的布局文件 
*/ 
public void addPage(@LayoutRes int layout){ 
View view=context.getLayoutInflater().inflate(layout,null); 
insertPage(view); 
} 
/** 
* 增加页面 
* @param myAppCompatActivity 该布局文件的java文件 
*/ 
public void addPage(MyAppCompatActivity myAppCompatActivity){ 
View view=new View(context); 
myAppCompatActivity.view=view; 
myAppCompatActivity.context=context; 
myAppCompatActivity.onCreate(); 
insertPage(view); 
} 
/** 
* 切换页面 
* @param pageNo 切换页面的下标 
*/ 
public void changePage(int pageNo) { 
if(pageNo<pageList.size()&&pageNo =0){ 
now=fill*pageNo; 
try { 
set.invoke(pageSlide,(int)now); 
} catch (IllegalAccessException e) { 
e.printStackTrace(); 
} catch (InvocationTargetException e) { 
e.printStackTrace(); 
} 
this.pageNo=pageNo; 
} 
} 
/** 
* @return 返回当前页面编号 
*/ 
public int getPageNo(){ 
return pageNo; 
} 
/** 
* 删除页面 
* @param pageNo 删除页面的下标 
*/ 
public void removePage(int pageNo) { 
if (pageNo < pageList.size() && pageNo  = 0) { 
linearLayout.removeView(pageList.get(pageNo)); 
pageList.remove(pageNo); 
} 
} 
/**********************************************************************************************/ 
//展示页面的Activity 
private AppCompatActivity context; 
//转换页面的速度，默认为20 
private float speed=20; 
//当前Activity的页面滑动值倍数 
private float fill; 
//当前页面 
private int pageNo=0; 
//当前滚动条的位置 
private float now=0; 
//手指点击的位置 
private float Down=0; 
//手指松开的位置 
private float Up=0; 
//滑动方向 
private float value=0; 
//是否为第一次点击 
private boolean b=true; 
//页面集合 
private List<View  pageList=new ArrayList< (); 
//辅助线程执行 
private Handler handler=new Handler(); 
//get方法 
private Method get; 
//get方法 
private Method set; 
//本页布局控件 
LinearLayout linearLayout; 
//页面大小 
LinearLayout.LayoutParams params; 
//多态 
private PageSlide pageSlide; 
//简化代码 
private void insertPage(View view){ 
view.setLayoutParams(params); 
pageList.add(view); 
linearLayout.addView(view); 
} 
//滑动线程 
private Runnable runnable=new Runnable() { 
@Override 
public void run() { 
try { 
if((b&&(float)get.invoke(pageSlide) =now)||(!b&&(float)get.invoke(pageSlide)<=now)){ 
set.invoke(pageSlide,(int) (now-value)); 
b=true; 
handler.removeCallbacks(runnable); 
}else{ 
handler.postDelayed(runnable,1); 
} 
if(now==0&&value 0) { 
set.invoke(pageSlide,(int)((float)get.invoke(pageSlide))); 
}else{ 
set.invoke(pageSlide,(int)((float)get.invoke(pageSlide)+value)); 
} 
} catch (IllegalAccessException e) { 
e.printStackTrace(); 
} catch (InvocationTargetException e) { 
e.printStackTrace(); 
} 
} 
}; 
//手指判断 
public boolean MyTouchEvent(MotionEvent ev) throws InvocationTargetException, IllegalAccessException { 
if(b){ 
Down=(float)get.invoke(pageSlide); 
b=false; 
} 
if(ev.getAction()==MotionEvent.ACTION_UP){ 
Up=(float)get.invoke(pageSlide); 
value=Up Down?Up-Down:Down-Up; 
b=Up Down?true:false; 
if(value 250){ 
value=b?speed:-speed; 
now=b?now+fill:now-fill; 
pageNo= (int) (now/fill); 
handler.post(runnable); 
}else{ 
value=b?-speed:speed; 
handler.post(runnable); 
} 
return false; 
} 
return pageSlide.TouchEvent(ev); 
} 
} 
} 

package com.hy.View; 
import android.support.v7.app.AppCompatActivity; 
import android.view.View; 
/** 
* 分页面的java类继承此类 取代AppCompatActivity 
*/ 
public abstract class MyAppCompatActivity { 
/** 
* 当作 this 来用 
*/ 
public AppCompatActivity context; 
/** 
* 当前页面的根布局 用它使用 findViewById() 找控件 
*/ 
public View view; 
/** 
* 初始值在这里面定义 
*/ 
public abstract void onCreate(); 
}