<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
  xmlns:tools="http://schemas.android.com/tools"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  tools:context="${relativePackage}.${activityClass}" >

  <com.wind.view.SlideMenuView
    android:id="@+id/slideMenu"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <include layout="@layout/layout_menu"/>

    <include layout="@layout/layout_main"/>
  </com.wind.view.SlideMenuView>

</RelativeLayout>

package com.wind.view;

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

public class SlideMenuView extends ViewGroup { // FrameLayout {
  private static final String TAG = "SlideMenuView";
  private View menuView, mainView;
  private int menuWidth = 0;

  private Scroller scroller;

  public SlideMenuView(Context context) {
    super(context);
    init();
  }

  public SlideMenuView(Context context, AttributeSet attrs) {
    super(context, attrs);
    init();
  }

  private void init() {
    scroller = new Scroller(getContext());
  }

  /**
   * 当一级的子View全部加载玩后调用，可以用于初始化子View的引用 
   * 
   */
  @Override
  protected void onFinishInflate() {
    super.onFinishInflate();
    menuView = getChildAt(0);
    mainView = getChildAt(1);
    menuWidth = menuView.getLayoutParams().width;

    Log.d(TAG, "onFinishInflate() menuWidth: " + menuWidth);
  }

    /**
     * widthMeasureSpec和heightMeasureSpec是系统测量SlideMenu时传入的参数，
     * 这2个参数测量出的宽高能让SlideMenu充满窗体，其实是正好等于屏幕宽高
     */
  @Override
  protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
    super.onMeasure(widthMeasureSpec, heightMeasureSpec);

    Log.d(TAG, "onMeasure: widthMeasureSpec: " + widthMeasureSpec
        + "heightMeasureSpec: " + heightMeasureSpec);

    // int measureSpec = MeasureSpec.makeMeasureSpec(menuWidth,
    // MeasureSpec.EXACTLY);
    //
    // Log.d(TAG,"onMeasure: measureSpec： " +measureSpec);
    // 测量所有子view的宽高
    // 通过getLayoutParams方法可以获取到布局文件中指定宽高
    menuView.measure(widthMeasureSpec, heightMeasureSpec);
    // 直接使用SlideMenu的测量参数，因为它的宽高都是充满父窗体
    mainView.measure(widthMeasureSpec, heightMeasureSpec);

  }

     /**
     * 重新摆放子View的位置
     * l: 当前子view的左边在父view的坐标系中的x坐标
     * t: 当前子view的顶边在父view的坐标系中的y坐标
     */
  @Override
  protected void onLayout(boolean changed, int l, int t, int r, int b) {
    Log.d(TAG, "onLayout() changed： " + changed + "l: " + l + "t: " + t
        + "r: " + r + "b: " + b);
    Log.d(TAG,"menuView.getMeasuredHeight(): " + menuView.getMeasuredHeight());
    menuView.layout(-menuWidth, 0, 0, menuView.getMeasuredHeight());
    mainView.layout(0, 0, r, b);
  }

 

 
  private int downX;

  @Override
  public boolean onTouchEvent(MotionEvent event) {
    switch (event.getAction()) {
    case MotionEvent.ACTION_DOWN:
      downX = (int) event.getX();
      break;

    case MotionEvent.ACTION_MOVE:
      int moveX = (int) event.getX();
      int deltaX = (moveX - downX);
      Log.e(TAG, "scrollX: " + getScrollX());

      int newScrollX = getScrollX() - deltaX;
      //使得SlideMenuView不会滑动出界
      if(newScrollX > 0) newScrollX = 0;
      if(newScrollX < -menuWidth) newScrollX = -menuWidth;

      scrollTo(newScrollX, 0);
      Log.e(TAG, "moveX: " + moveX);
      downX = moveX;
      break;

    case MotionEvent.ACTION_UP:

      //①.使用自定义动画
//     ScrollAnimation scrollAnimation;
//     if(getScrollX()>-menuWidth/2){
//       //关闭菜单
////        scrollTo(0, 0);
//       scrollAnimation = new ScrollAnimation(this, 0);
//     }else {
//       //打开菜单
////        scrollTo(-menuWidth, 0);
//       scrollAnimation = new ScrollAnimation(this, -menuWidth);
//     }
//     startAnimation(scrollAnimation);


      //②使用Scroller
      if(getScrollX()>-menuWidth/2){
//       //关闭菜单
        closeMenu();
      }else {
        //打开菜单
        openMenu();
      }
      break;
    }

    return true;
  }

  private void openMenu() {
    Log.d(TAG, "openMenu...");
    scroller.startScroll(getScrollX(), 0, -menuWidth-getScrollX(), 400);
    invalidate();
  }

  private void closeMenu() {
    Log.d(TAG, "closeMenu...");
    scroller.startScroll(getScrollX(), 0, 0-getScrollX(), 400);
    invalidate();
  }

    /**
     * Scroller不主动去调用这个方法
     * 而invalidate()可以掉这个方法
     * invalidate->draw->computeScroll
     */
  @Override
  public void computeScroll() {
    super.computeScroll();
    if(scroller.computeScrollOffset()){//返回true,表示动画没结束
      scrollTo(scroller.getCurrX(), 0);
      invalidate();
    }
  }
  //用于在Activity中来控制菜单的状态
  public void switchMenu() {
    if(getScrollX() == 0) {
      openMenu();
    } else {
      closeMenu();
    }
  }
}

package com.wind.view;

import android.view.View;
import android.view.animation.Animation;
import android.view.animation.Transformation;

/**
 * 让指定view在一段时间内scrollTo到指定位置
 * @author Administrator
 *
 */
public class ScrollAnimation extends Animation{

  private View view;
  private int targetScrollX;
  private int startScrollX;
  private int totalValue;

  public ScrollAnimation(View view, int targetScrollX) {
    super();
    this.view = view;
    this.targetScrollX = targetScrollX;

    startScrollX = view.getScrollX();
    totalValue = this.targetScrollX - startScrollX;

    int time = Math.abs(totalValue);
    setDuration(time);
  }

 

  /**
   * 在指定的时间内一直执行该方法，直到动画结束
   * interpolatedTime：0-1 标识动画执行的进度或者百分比
   * time : 0  - 0.5 - 0.7 -  1
   * value: 10 - 60 - 80 - 110
   * 当前的值 = 起始值 + 总的差值*interpolatedTime
   */
  @Override
  protected void applyTransformation(float interpolatedTime,
      Transformation t) {
    super.applyTransformation(interpolatedTime, t);
    int currentScrollX = (int) (startScrollX + totalValue*interpolatedTime);
    view.scrollTo(currentScrollX, 0);
  }
}

/**
   * Set the scrolled position of your view. This will cause a call to
   * {@link #onScrollChanged(int, int, int, int)} and the view will be
   * invalidated.
   * @param x the x position to scroll to
   * @param y the y position to scroll to
   */
  public void scrollTo(int x, int y) {
    if (mScrollX != x || mScrollY != y) {
      int oldX = mScrollX;
      int oldY = mScrollY;
      mScrollX = x;
      mScrollY = y;
      invalidateParentCaches();
      onScrollChanged(mScrollX, mScrollY, oldX, oldY);
      if (!awakenScrollBars()) {
        invalidate(true);
      }
    }
  }
  /**
   * Move the scrolled position of your view. This will cause a call to
   * {@link #onScrollChanged(int, int, int, int)} and the view will be
   * invalidated.
   * @param x the amount of pixels to scroll by horizontally
   * @param y the amount of pixels to scroll by vertically
   */
  public void scrollBy(int x, int y) {
    scrollTo(mScrollX + x, mScrollY + y);
  }