//是否带有阴影效果 
private boolean isShowShadow = true; 
//手势处理类 
private GestureDetectorCompat gestureDetector; 
//视图拖拽移动帮助类 
private ViewDragHelper dragHelper; 
//滑动监听器 
private DragListener dragListener; 
//水平拖拽的距离 
private int range; 
//宽度 
private int width; 
//高度 
private int height; 
//main视图距离在ViewGroup距离左边的距离 
private int mainLeft; 
private Context context; 
private ImageView iv_shadow; 
//左侧布局 
private RelativeLayout vg_left; 
//右侧(主界面布局) 
private CustomRelativeLayout vg_main; 

/** 
* 滑动相关回调接口 
*/ 
public interface DragListener { 
//界面打开 
public void onOpen(); 
//界面关闭 
public void onClose(); 
//界面滑动过程中 
public void onDrag(float percent); 
}

public DragLayout(Context context,AttributeSet attrs, int defStyle) { 
super(context, attrs, defStyle); 
gestureDetector = new GestureDetectorCompat(context, new YScrollDetector()); 
dragHelper =ViewDragHelper.create(this, dragHelperCallback); 
} 

/** 
* 拦截触摸事件 
* @param ev 
* @return 
*/ 
@Override 
public boolean onInterceptTouchEvent(MotionEvent ev) { 
return dragHelper.shouldInterceptTouchEvent(ev) &&gestureDetector.onTouchEvent(ev); 
} 
/** 
* 将拦截的到事件给ViewDragHelper进行处理 
* @param e 
* @return 
*/ 
@Override 
public boolean onTouchEvent(MotionEvent e){ 
try { 
dragHelper.processTouchEvent(e); 
} catch (Exception ex) { 
ex.printStackTrace(); 
} 
return false; 
} 

/** 
* 拦截所有的子View 
* @param child Child the user is attempting to capture 
* @param pointerId ID of the pointer attempting the capture 
* @return 
*/ 
@Override 
public boolean tryCaptureView(Viewchild, int pointerId) { 
return true; 
} 

/** 
* 水平方向移动 
* @param child Child view beingdragged 
* @param left Attempted motion alongthe X axis 
* @param dx Proposed change inposition for left 
* @return 
*/ 
@Override 
public int clampViewPositionHorizontal(View child, int left, int dx) { 
if (mainLeft + dx < 0) { 
return 0; 
} else if (mainLeft + dx >range) { 
return range; 
} else { 
return left; 
} 
}

/** 
* 设置水平方向滑动的最远距离 
*@param child Child view to check 屏幕宽度 
* @return 
*/ 
@Override 
public int getViewHorizontalDragRange(View child) { 
return width; 
} 

/** 
* 当拖拽的子View，手势释放的时候回调的方法， 然后根据左滑或者右滑的距离进行判断打开或者关闭 
* @param releasedChild 
* @param xvel 
* @param yvel 
*/ 
@Override 
public void onViewReleased(View releasedChild, float xvel, float yvel) { 
super.onViewReleased(releasedChild,xvel, yvel); 
if (xvel > 0) { 
open(); 
} else if (xvel < 0) { 
close(); 
} else if (releasedChild == vg_main&& mainLeft > range * 0.3) { 
open(); 
} else if (releasedChild == vg_left&& mainLeft > range * 0.7) { 
open(); 
} else { 
close(); 
} 
} 

/** 
* 子View被拖拽 移动的时候回调的方法 
* @param changedView View whoseposition changed 
* @param left New X coordinate of theleft edge of the view 
* @param top New Y coordinate of thetop edge of the view 
* @param dx Change in X position fromthe last call 
* @param dy Change in Y position fromthe last call 
*/ 
@Override 
public void onViewPositionChanged(View changedView, int left, int top, 
int dx, int dy) { 
if (changedView == vg_main) { 
mainLeft = left; 
} else { 
mainLeft = mainLeft + left; 
} 
if (mainLeft < 0) { 
mainLeft = 0; 
} else if (mainLeft > range) { 
mainLeft = range; 
} 
if (isShowShadow) { 
iv_shadow.layout(mainLeft, 0,mainLeft + width, height); 
} 
if (changedView == vg_left) { 
vg_left.layout(0, 0, width,height); 
vg_main.layout(mainLeft, 0,mainLeft + width, height); 
} 
dispatchDragEvent(mainLeft); 
} 
}; 

/** 
* 进行处理拖拽事件 
* @param mainLeft 
*/ 
private void dispatchDragEvent(int mainLeft) { 
if (dragListener == null) { 
return; 
} 
float percent = mainLeft / (float)range; 
//根据滑动的距离的比例 
animateView(percent); 
//进行回调滑动的百分比 
dragListener.onDrag(percent); 
Status lastStatus = status; 
if (lastStatus != getStatus()&& status == Status.Close) { 
dragListener.onClose(); 
} else if (lastStatus != getStatus()&& status == Status.Open) { 
dragListener.onOpen(); 
} 
} 

/** 
* 布局加载完成回调 
* 做一些初始化的操作 
*/ 
@Override 
protected void onFinishInflate() { 
super.onFinishInflate(); 
if (isShowShadow) { 
iv_shadow = new ImageView(context); 
iv_shadow.setImageResource(R.mipmap.shadow); 
LayoutParams lp = new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT); 
addView(iv_shadow, 1, lp); 
} 
//左侧界面 
vg_left = (RelativeLayout)getChildAt(0); 
//右侧(主)界面 
vg_main = (CustomRelativeLayout)getChildAt(isShowShadow ? 2 : 1); 
vg_main.setDragLayout(this); 
vg_left.setClickable(true); 
vg_main.setClickable(true); 
} 

@Override 
protected void onSizeChanged(int w, int h,int oldw, int oldh) { 
super.onSizeChanged(w, h, oldw, oldh); 
width = vg_left.getMeasuredWidth(); 
height = vg_left.getMeasuredHeight(); 
//可以水平拖拽滑动的距离 一共为屏幕宽度的80% 
range = (int) (width *0.8f); 
} 

/** 
* 根据滑动的距离的比例,进行平移动画 
* @param percent 
*/ 
private void animateView(float percent) { 
float f1 = 1 - percent * 0.5f; 
ViewHelper.setTranslationX(vg_left,-vg_left.getWidth() / 2.5f + vg_left.getWidth() / 2.5f * percent); 
if (isShowShadow) { 
//阴影效果视图大小进行缩放 
ViewHelper.setScaleX(iv_shadow, f1* 1.2f * (1 - percent * 0.10f)); 
ViewHelper.setScaleY(iv_shadow, f1* 1.85f * (1 - percent * 0.10f)); 
} 
} 

/** 
* 有加速度,当我们停止滑动的时候，该不会立即停止动画效果 
*/ 
@Override 
public void computeScroll() { 
if (dragHelper.continueSettling(true)){ 
ViewCompat.postInvalidateOnAnimation(this); 
} 
} 

<com.chinaztt.widget.DragLayout 
xmlns:android="http://schemas.android.com/apk/res/android" 
android:id="@+id/dl" 
android:layout_width="match_parent" 
android:layout_height="match_parent" 
android:background="@android:color/transparent" 
> 
<!--下层 左边的布局--> 
<includelayoutincludelayout="@layout/left_view_layout"/> 
<!--上层 右边的主布局--> 
<com.chinaztt.widget.CustomRelativeLayout 
android:layout_width="match_parent" 
android:layout_height="match_parent" 
android:background="#FFFFFF" 
> 
<LinearLayout 
android:layout_width="fill_parent" 
android:layout_height="fill_parent" 
android:orientation="vertical" 
> 
<RelativeLayout 
android:id="@+id/rl_title" 
android:layout_width="match_parent" 
android:layout_height="49dp" 
android:gravity="bottom" 
android:background="@android:color/holo_orange_light" 
> 
<includelayoutincludelayout="@layout/common_top_bar_layout"/> 
</RelativeLayout> 
<!--中间内容后面放入Fragment--> 
<FrameLayout 
android:layout_width="fill_parent" 
android:layout_height="fill_parent" 
> 
<fragment 
android:id="@+id/main_info_fragment" 
class="com.chinaztt.fragment.OneFragment" 
android:layout_width="fill_parent" 
android:layout_height="fill_parent"/> 
</FrameLayout> 
</LinearLayout> 
</com.chinaztt.widget.CustomRelativeLayout> 
</com.chinaztt.widget.DragLayout> 

<RelativeLayout 
xmlns:android="http://schemas.android.com/apk/res/android" 
xmlns:app="http://schemas.android.com/apk/res-auto" 
android:layout_width="match_parent" 
android:layout_height="match_parent" 
android:paddingTop="70dp" 
android:background="@drawable/sidebar_bg" 
> 
<LinearLayout 
android:id="@+id/ll1" 
android:paddingLeft="30dp" 
android:layout_width="fill_parent" 
android:layout_height="wrap_content" 
android:orientation="vertical"> 
<!--头像，昵称信息--> 
<LinearLayout 
android:layout_width="match_parent" 
android:layout_height="70dp" 
android:orientation="horizontal" 
android:gravity="center_vertical" 
> 
<com.chinaztt.widget.RoundAngleImageView 
android:id="@+id/iv_bottom" 
android:layout_width="50dp" 
android:layout_height="50dp" 
android:scaleType="fitXY" 
android:src="@drawable/icon_logo" 
app:roundWidth="25dp" 
app:roundHeight="25dp"/> 
<LinearLayout 
android:layout_width="fill_parent" 
android:layout_height="wrap_content" 
android:gravity="center_vertical" 
android:layout_gravity="center_vertical" 
android:orientation="vertical"> 
<RelativeLayout 
android:layout_width="fill_parent" 
android:layout_height="wrap_content" 
> 
<TextView 
android:layout_width="wrap_content" 
android:layout_height="wrap_content" 
android:layout_centerVertical="true" 
android:layout_marginLeft="15dp" 
android:text="名字:jiangqqlmj" 
android:textColor="@android:color/black" 
android:textSize="15sp" /> 
<ImageButton 
android:layout_alignParentRight="true" 
android:layout_centerVertical="true" 
android:layout_marginRight="100dp" 
android:layout_width="22dp" 
android:layout_height="22dp" 
android:background="@drawable/qrcode_selector"/> 
</RelativeLayout> 
<TextView 
android:layout_width="wrap_content" 
android:layout_height="wrap_content" 
android:layout_gravity="center_vertical" 
android:layout_marginLeft="15dp" 
android:text="QQ:781931404" 
android:textColor="@android:color/black" 
android:textSize="13sp" /> 
</LinearLayout> 
</LinearLayout> 
<LinearLayout 
android:layout_width="fill_parent" 
android:layout_height="wrap_content" 
android:gravity="center_vertical" 
android:orientation="horizontal"> 
<ImageView 
android:layout_width="17dp" 
android:layout_height="17dp" 
android:scaleType="fitXY" 
android:src="@drawable/sidebar_signature_nor"/> 
<TextView 
android:layout_marginLeft="5dp" 
android:textSize="13sp" 
android:textColor="#676767" 
android:layout_width="fill_parent" 
android:layout_height="wrap_content" 
android:text="用心做产品!"/> 
</LinearLayout> 
</LinearLayout> 
<!--底部功能条--> 
<includelayoutincludelayout="@layout/left_view_bottom_layout" 
android:id="@+id/bottom_view" 
/> 
<!--中间列表--> 
<ListView 
android:id="@+id/lv" 
android:layout_width="match_parent" 
android:layout_height="wrap_content" 
android:layout_above="@id/bottom_view" 
android:layout_below="@id/ll1" 
android:layout_marginBottom="30dp" 
android:layout_marginTop="70dp" 
android:cacheColorHint="#00000000" 
android:listSelector="@drawable/lv_click_selector" 
android:divider="@null" 
android:scrollbars="none" 
android:textColor="#ffffff"/> 
</RelativeLayout> 

public class MainActivity extends BaseActivity { 
private DragLayout dl; 
private ListView lv; 
private ImageView iv_icon, iv_bottom; 
private QuickAdapter<ItemBean> quickAdapter; 
@Override 
protected void onCreate(Bundle savedInstanceState) { 
super.onCreate(savedInstanceState); 
setContentView(R.layout.activity_main); 
setStatusBar(); 
initDragLayout(); 
initView(); 
} 
private void initDragLayout() { 
dl = (DragLayout) findViewById(R.id.dl); 
dl.setDragListener(new DragLayout.DragListener() { 
//界面打开的时候 
@Override 
public void onOpen() { 
} 
//界面关闭的时候 
@Override 
public void onClose() { 
} 
//界面滑动的时候 
@Override 
public void onDrag(float percent) { 
ViewHelper.setAlpha(iv_icon, 1 - percent); 
} 
}); 
} 
private void initView() { 
iv_icon = (ImageView) findViewById(R.id.iv_icon); 
iv_bottom = (ImageView) findViewById(R.id.iv_bottom); 
lv = (ListView) findViewById(R.id.lv); 
lv.setAdapter(quickAdapter=new QuickAdapter<ItemBean>(this,R.layout.item_left_layout, ItemDataUtils.getItemBeans()) { 
@Override 
protected void convert(BaseAdapterHelper helper, ItemBean item) { 
helper.setImageResource(R.id.item_img,item.getImg()) 
.setText(R.id.item_tv,item.getTitle()); 
} 
}); 
lv.setOnItemClickListener(new OnItemClickListener() { 
@Override 
public void onItemClick(AdapterView<?> arg0, View arg1, 
int position, long arg3) { 
Toast.makeText(MainActivity.this,"Click Item "+position,Toast.LENGTH_SHORT).show(); 
} 
}); 
iv_icon.setOnClickListener(new OnClickListener() { 
@Override 
public void onClick(View arg0) { 
dl.open(); 
} 
}); 
} 
} 

/** 
*使用ViewRragHelper实现侧滑效果功能 
*/ 
publicclass DragLayout extends FrameLayout { 
private boolean isShowShadow = true; 
//手势处理类 
private GestureDetectorCompat gestureDetector; 
//视图拖拽移动帮助类 
private ViewDragHelper dragHelper; 
//滑动监听器 
private DragListener dragListener; 
//水平拖拽的距离 
private int range; 
//宽度 
private int width; 
//高度 
private int height; 
//main视图距离在ViewGroup距离左边的距离 
private int mainLeft; 
private Context context; 
private ImageView iv_shadow; 
//左侧布局 
private RelativeLayout vg_left; 
//右侧(主界面布局) 
private CustomRelativeLayout vg_main; 
//页面状态 默认为关闭 
private Status status = Status.Close; 
public DragLayout(Context context) { 
this(context, null); 
} 
public DragLayout(Context context,AttributeSet attrs) { 
this(context, attrs, 0); 
this.context = context; 
} 
public DragLayout(Context context,AttributeSet attrs, int defStyle) { 
super(context, attrs, defStyle); 
gestureDetector = new GestureDetectorCompat(context, new YScrollDetector()); 
dragHelper =ViewDragHelper.create(this, dragHelperCallback); 
} 
class YScrollDetector extends SimpleOnGestureListener { 
@Override 
public boolean onScroll(MotionEvent e1,MotionEvent e2, float dx, float dy) { 
return Math.abs(dy) <=Math.abs(dx); 
} 
} 
/** 
* 实现子View的拖拽滑动，实现Callback当中相关的方法 
*/ 
private ViewDragHelper.Callback dragHelperCallback = new ViewDragHelper.Callback() { 
/** 
* 水平方向移动 
* @param child Child view beingdragged 
* @param left Attempted motion alongthe X axis 
* @param dx Proposed change inposition for left 
* @return 
*/ 
@Override 
public int clampViewPositionHorizontal(View child, int left, int dx) { 
if (mainLeft + dx < 0) { 
return 0; 
} else if (mainLeft + dx >range) { 
return range; 
} else { 
return left; 
} 
} 
/** 
* 拦截所有的子View 
* @param child Child the user isattempting to capture 
* @param pointerId ID of the pointerattempting the capture 
* @return 
*/ 
@Override 
public boolean tryCaptureView(View child, int pointerId) { 
return true; 
} 
/** 
* 设置水平方向滑动的最远距离 
*@param child Child view to check 屏幕宽度 
* @return 
*/ 
@Override 
public int getViewHorizontalDragRange(View child) { 
return width; 
} 
/** 
* 当拖拽的子View，手势释放的时候回调的方法， 然后根据左滑或者右滑的距离进行判断打开或者关闭 
* @param releasedChild 
* @param xvel 
* @param yvel 
*/ 
@Override 
public void onViewReleased(View releasedChild, float xvel, float yvel) { 
super.onViewReleased(releasedChild,xvel, yvel); 
if (xvel > 0) { 
open(); 
} else if (xvel < 0) { 
close(); 
} else if (releasedChild == vg_main&& mainLeft > range * 0.3) { 
open(); 
} else if (releasedChild == vg_left&& mainLeft > range * 0.7) { 
open(); 
} else { 
close(); 
} 
} 
/** 
* 子View被拖拽 移动的时候回调的方法 
* @param changedView View whoseposition changed 
* @param left New X coordinate of theleft edge of the view 
* @param top New Y coordinate of thetop edge of the view 
* @param dx Change in X position fromthe last call 
* @param dy Change in Y position fromthe last call 
*/ 
@Override 
public void onViewPositionChanged(View changedView, int left, int top, 
int dx, int dy) { 
if (changedView == vg_main) { 
mainLeft = left; 
} else { 
mainLeft = mainLeft + left; 
} 
if (mainLeft < 0) { 
mainLeft = 0; 
} else if (mainLeft > range) { 
mainLeft = range; 
} 
if (isShowShadow) { 
iv_shadow.layout(mainLeft, 0,mainLeft + width, height); 
} 
if (changedView == vg_left) { 
vg_left.layout(0, 0, width,height); 
vg_main.layout(mainLeft, 0,mainLeft + width, height); 
} 
dispatchDragEvent(mainLeft); 
} 
}; 
/** 
* 滑动相关回调接口 
*/ 
public interface DragListener { 
//界面打开 
public void onOpen(); 
//界面关闭 
public void onClose(); 
//界面滑动过程中 
public void onDrag(float percent); 
} 
public void setDragListener(DragListener dragListener) { 
this.dragListener = dragListener; 
} 
/** 
* 布局加载完成回调 
* 做一些初始化的操作 
*/ 
@Override 
protected void onFinishInflate() { 
super.onFinishInflate(); 
if (isShowShadow) { 
iv_shadow = new ImageView(context); 
iv_shadow.setImageResource(R.mipmap.shadow); 
LayoutParams lp = new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT); 
addView(iv_shadow, 1, lp); 
} 
//左侧界面 
vg_left = (RelativeLayout)getChildAt(0); 
//右侧(主)界面 
vg_main = (CustomRelativeLayout)getChildAt(isShowShadow ? 2 : 1); 
vg_main.setDragLayout(this); 
vg_left.setClickable(true); 
vg_main.setClickable(true); 
} 
public ViewGroup getVg_main() { 
return vg_main; 
} 
public ViewGroup getVg_left() { 
return vg_left; 
} 
@Override 
protected void onSizeChanged(int w, int h,int oldw, int oldh) { 
super.onSizeChanged(w, h, oldw, oldh); 
width = vg_left.getMeasuredWidth(); 
height = vg_left.getMeasuredHeight(); 
//可以水平拖拽滑动的距离 一共为屏幕宽度的80% 
range = (int) (width * 0.8f); 
} 
/** 
* 调用进行left和main 视图进行位置布局 
* @param changed 
* @param left 
* @param top 
* @param right 
* @param bottom 
*/ 
@Override 
protected void onLayout(boolean changed,int left, int top, int right, int bottom) { 
vg_left.layout(0, 0, width, height); 
vg_main.layout(mainLeft, 0, mainLeft +width, height); 
} 
/** 
* 拦截触摸事件 
* @param ev 
* @return 
*/ 
@Override 
public boolean onInterceptTouchEvent(MotionEvent ev) { 
returndragHelper.shouldInterceptTouchEvent(ev) &&gestureDetector.onTouchEvent(ev); 
} 
/** 
* 将拦截的到事件给ViewDragHelper进行处理 
* @param e 
* @return 
*/ 
@Override 
public boolean onTouchEvent(MotionEvent e){ 
try { 
dragHelper.processTouchEvent(e); 
} catch (Exception ex) { 
ex.printStackTrace(); 
} 
return false; 
} 
/** 
* 进行处理拖拽事件 
* @param mainLeft 
*/ 
private void dispatchDragEvent(intmainLeft) { 
if (dragListener == null) { 
return; 
} 
float percent = mainLeft / (float)range; 
//滑动动画效果 
animateView(percent); 
//进行回调滑动的百分比 
dragListener.onDrag(percent); 
Status lastStatus = status; 
if (lastStatus != getStatus()&& status == Status.Close) { 
dragListener.onClose(); 
} else if (lastStatus != getStatus()&& status == Status.Open) { 
dragListener.onOpen(); 
} 
} 
/** 
* 根据滑动的距离的比例,进行平移动画 
* @param percent 
*/ 
private void animateView(float percent) { 
float f1 = 1 - percent * 0.5f; 
ViewHelper.setTranslationX(vg_left,-vg_left.getWidth() / 2.5f + vg_left.getWidth() / 2.5f * percent); 
if (isShowShadow) { 
//阴影效果视图大小进行缩放 
ViewHelper.setScaleX(iv_shadow, f1* 1.2f * (1 - percent * 0.10f)); 
ViewHelper.setScaleY(iv_shadow, f1* 1.85f * (1 - percent * 0.10f)); 
} 
} 
/** 
* 有加速度,当我们停止滑动的时候，该不会立即停止动画效果 
*/ 
@Override 
public void computeScroll() { 
if (dragHelper.continueSettling(true)){ 
ViewCompat.postInvalidateOnAnimation(this); 
} 
} 
/** 
* 页面状态(滑动,打开,关闭) 
*/ 
public enum Status { 
Drag, Open, Close 
} 
/** 
* 页面状态设置 
* @return 
*/ 
public Status getStatus() { 
if (mainLeft == 0) { 
status = Status.Close; 
} else if (mainLeft == range) { 
status = Status.Open; 
} else { 
status = Status.Drag; 
} 
return status; 
} 
public void open() { 
open(true); 
} 
public void open(boolean animate) { 
if (animate) { 
//继续滑动 
if(dragHelper.smoothSlideViewTo(vg_main, range, 0)) { 
ViewCompat.postInvalidateOnAnimation(this); 
} 
} else { 
vg_main.layout(range, 0, range * 2,height); 
dispatchDragEvent(range); 
} 
} 
public void close() { 
close(true); 
} 
public void close(boolean animate) { 
if (animate) { 
//继续滑动 
if(dragHelper.smoothSlideViewTo(vg_main, 0, 0)) { 
ViewCompat.postInvalidateOnAnimation(this); 
} 
} else { 
vg_main.layout(0, 0, width,height); 
dispatchDragEvent(0); 
} 
} 
}