public class MySlidingMenu extends ViewGroup {
public MySlidingMenu(Context context) {
this(context, null, 0);
}
public MySlidingMenu(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public MySlidingMenu(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
DisplayMetrics metrics = new DisplayMetrics();
WindowManager wm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
wm.getDefaultDisplay().getMetrics(metrics);
//獲取屏幕的寬和高
mScreenWidth = metrics.widthPixels;
mScreenHeight = metrics.heightPixels; 
//設(shè)置Menu距離屏幕右側(cè)的距離，convertToDp是將代碼中的100轉(zhuǎn)換成100dp
mMenuRightPadding = convertToDp(context,100); 
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
//拿到Menu，Menu是第0個(gè)孩子
mMenu = (ViewGroup) getChildAt(0);
//拿到Content，Content是第1個(gè)孩子
mContent = (ViewGroup) getChildAt(1);
//設(shè)置Menu的寬為屏幕的寬度減去Menu距離屏幕右側(cè)的距離
mMenuWidth = mMenu.getLayoutParams().width = mScreenWidth - mMenuRightPadding;
//設(shè)置Content的寬為屏幕的寬度
mContentWidth = mContent.getLayoutParams().width = mScreenWidth;
//測(cè)量Menu
measureChild(mMenu,widthMeasureSpec,heightMeasureSpec);
//測(cè)量Content
measureChild(mContent, widthMeasureSpec, heightMeasureSpec);
//測(cè)量自己，自己的寬度為Menu寬度加上Content寬度，高度為屏幕高度
setMeasuredDimension(mMenuWidth + mContentWidth, mScreenHeight);
}
@Override
protected void onLayout(boolean changed, int l, int t, int r, int b) {
//擺放Menu的位置，根據(jù)上面圖可以確定上下左右的坐標(biāo)
mMenu.layout(-mMenuWidth, 0, 0, mScreenHeight);
//擺放Content的位置
mContent.layout(0, 0, mScreenWidth, mScreenHeight);
}

/**
* 將傳進(jìn)來的數(shù)轉(zhuǎn)化為dp
*/
private int convertToDp(Context context , int num){
return (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,num,context.getResources().getDisplayMetrics());
}
}

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ListView
android:id="@+id/menu_listview"
android:layout_width="wrap_content"
android:divider="@null"
android:dividerHeight="0dp"
android:scrollbars="none"
android:layout_height="wrap_content">
</ListView>
</RelativeLayout>

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal" android:layout_width="match_parent"
android:gravity="center_vertical"
android:layout_height="match_parent">
<ImageView
android:id="@+id/menu_imageview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/menu_1"
android:padding="20dp"
/>
<TextView
android:id="@+id/menu_textview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="菜單1"
android:textColor="#000000"
android:textSize="20sp"
/>
</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="65dp"
android:background="#000000"
android:gravity="center_vertical"
android:orientation="horizontal"
>
<ImageView
android:id="@+id/menu_toggle"
android:layout_width="40dp"
android:layout_height="40dp"
android:src="@drawable/toggle"
android:paddingLeft="10dp"
/>
</LinearLayout>
<ListView
android:id="@+id/content_listview"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:dividerHeight="0dp"
android:divider="@null"
android:scrollbars="none"
/>
</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal" android:layout_width="match_parent"
android:gravity="center_vertical"
android:background="#ffffff"
android:layout_height="match_parent">
<ImageView
android:id="@+id/content_imageview"
android:layout_width="80dp"
android:layout_height="80dp"
android:src="@drawable/content_1"
android:layout_margin="20dp"
/>
<TextView
android:id="@+id/content_textview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Content - 1"
android:textColor="#000000"
android:textSize="20sp"/>
</LinearLayout>

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#aaaaaa"
>
<com.example.user.slidingmenu.MySlidingMenu
android:id="@+id/slidingmenu"
android:layout_width="wrap_content"
android:layout_height="match_parent"
>
<include
android:id="@+id/menu"
layout="@layout/left_menu"
/>
<include
android:id="@+id/content"
layout="@layout/content"
/>
</com.example.user.slidingmenu.MySlidingMenu>
</RelativeLayout>

@Override
public boolean onTouchEvent(MotionEvent event) {
int action = event.getAction();
switch (action){
case MotionEvent.ACTION_DOWN:
mLastX = (int) event.getX();
mLastY = (int) event.getY();
break;
case MotionEvent.ACTION_MOVE:
int currentX = (int) event.getX();
int currentY = (int) event.getY();
//拿到x方向的偏移量
int dx = currentX - mLastX;
if (dx < 0){//向左滑動(dòng)
//邊界控制，如果Menu已經(jīng)完全顯示，再滑動(dòng)的話
//Menu左側(cè)就會(huì)出現(xiàn)白邊了,進(jìn)行邊界控制
if (getScrollX() + Math.abs(dx) >= 0) {
//直接移動(dòng)到（0，0）位置，不會(huì)出現(xiàn)白邊
scrollTo(0, 0);
} else {//Menu沒有完全顯示呢
//其實(shí)這里dx還是-dx，大家不用刻意去記
//大家可以先使用dx，然后運(yùn)行一下，發(fā)現(xiàn)
//移動(dòng)的方向是相反的，那么果斷這里加個(gè)負(fù)號(hào)就可以了
scrollBy(-dx, 0);
}
}else{//向右滑動(dòng)
//邊界控制，如果Content已經(jīng)完全顯示，再滑動(dòng)的話
//Content右側(cè)就會(huì)出現(xiàn)白邊了，進(jìn)行邊界控制
if (getScrollX() - dx <= -mMenuWidth) {
//直接移動(dòng)到（-mMenuWidth,0）位置，不會(huì)出現(xiàn)白邊
scrollTo(-mMenuWidth, 0);
} else {//Content沒有完全顯示呢
//根據(jù)手指移動(dòng)
scrollBy(-dx, 0);
}
}
mLastX = currentX;
mLastY = currentY;
break;
}
return true;
}

@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
return true;
}

public MySlidingMenu(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
...
mScroller = new Scroller(context);
...
}

@Override
public void computeScroll() {
if (mScroller.computeScrollOffset()){
scrollTo(mScroller.getCurrX(), mScroller.getCurrY());
invalidate();
}
}

case MotionEvent.ACTION_UP:
if (getScrollX() < -mMenuWidth / 2){//打開Menu
//調(diào)用startScroll方法，第一個(gè)參數(shù)是起始X坐標(biāo)，第二個(gè)參數(shù)
//是起始Y坐標(biāo)，第三個(gè)參數(shù)是X方向偏移量，第四個(gè)參數(shù)是Y方向偏移量
mScroller.startScroll(getScrollX(), 0, -mMenuWidth - getScrollX(), 0, 300);
//設(shè)置一個(gè)已經(jīng)打開的標(biāo)識(shí)，當(dāng)實(shí)現(xiàn)點(diǎn)擊開關(guān)自動(dòng)打開關(guān)閉功能時(shí)會(huì)用到
isOpen = true;
//一定不要忘了調(diào)用這個(gè)方法重繪，否則沒有動(dòng)畫效果
invalidate();
}else{//關(guān)閉Menu
//同上
mScroller.startScroll(getScrollX(), 0, -getScrollX(), 0, 300);
isOpen = false;
invalidate();
}
break;

/**
* 點(diǎn)擊開關(guān)，開閉Menu，如果當(dāng)前menu已經(jīng)打開，則關(guān)閉，如果當(dāng)前menu已經(jīng)關(guān)閉，則打開
*/
public void toggleMenu(){
if (isOpen){
closeMenu();
}else{
openMenu();
}
}
/**
* 關(guān)閉menu
*/
private void closeMenu() {
//也是使用startScroll方法，dx和dy的計(jì)算方法一樣
mScroller.startScroll(getScrollX(),0,-getScrollX(),0,500);
invalidate();
isOpen = false;
}
/**
* 打開menu
*/
private void openMenu() {
mScroller.startScroll(getScrollX(),0,-mMenuWidth-getScrollX(),0,500);
invalidate();
isOpen = true;
}

mMenuToggle.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
mSlidingMenu.toggleMenu();
}
});

@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
boolean intercept = false;
int x = (int) ev.getX();
int y = (int) ev.getY();
switch (ev.getAction()){
case MotionEvent.ACTION_DOWN:
intercept = false;
break;
case MotionEvent.ACTION_MOVE:
int deltaX = (int) ev.getX() - mLastXIntercept;
int deltaY = (int) ev.getY() - mLastYIntercept;
if (Math.abs(deltaX) > Math.abs(deltaY)){//橫向滑動(dòng)
intercept = true;
}else{//縱向滑動(dòng)
intercept = false;
}
break;
case MotionEvent.ACTION_UP:
intercept = false;
break;
}
mLastX = x;
mLastY = y;
mLastXIntercept = x;
mLastYIntercept = y;
return intercept;
}

mMenu.setTranslationX(2*(mMenuWidth+getScrollX())/3);

scale = Math.abs((float)getScrollX()) / (float) mMenuWidth;

mMenu.setScaleX(0.7f + 0.3f*scale);
mMenu.setScaleY(0.7f + 0.3f*scale);

mMenu.setAlpha(scale);

mMenu.setTranslationX(mMenuWidth + getScrollX() - (mMenuWidth/2)*(1.0f-scale));

mContent.setScaleX(1 - 0.3f*scale);
mContent.setPivotX(0);
mContent.setScaleY(1.0f - 0.3f * scale);

private void slidingMode3(){
mMenu.setTranslationX(mMenuWidth + getScrollX() - (mMenuWidth/2)*(1.0f-scale));
mMenu.setScaleX(0.7f + 0.3f*scale);
mMenu.setScaleY(0.7f + 0.3f*scale);
mMenu.setAlpha(scale);

mContent.setScaleX(1 - 0.3f*scale);
mContent.setPivotX(0);
mContent.setScaleY(1.0f - 0.3f * scale);
}