自定义左右或上下滑动翻页

该自定义的效果和ViewPage+Fragment差不多

上下滑动翻页，继承ScrollView

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;    }}

左右滑动翻页，继承HorizontalScrollView

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;    }}

下面的是两种翻页的底层

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);        }    }}

最后还需要一个类似于碎片一样的东西

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();}