Android UI开发 popupwindow介绍以及代码实例

泡在网上的日子 / 文 发表于2012-11-26 22:07 次阅读 popupwindow

PopupWindow在android.widget包下,弹出窗口的形式展示。官方文档对该控件的描述是:“一个弹出窗口控件,可以用来显示任意视图(View),而且会浮动在当前 活动(activity)的顶部”。PopupWindow可以让我们实现多种自定义控件,例如:menu、alertdialog等弹窗似的View。


一、PopupWindow的简单用法

在这个例子中,popupwindow在onCreate时初始化、通过触发事件展示出来。

java代码:

public class ShowPopupWindow extends Activity implements View.OnClickListener {
    View view;
    PopupWindow pop;
    Button btnShowAsDrawDown;
    Button btnShowAsDrawDown1;
    Button btnShowAtLocation;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        setContentView(R.layout.popup_activity);
        btnShowAsDrawDown = (Button) findViewById(R.id.btnShowAsDrawDown);
        btnShowAsDrawDown.setOnClickListener(this);
        btnShowAsDrawDown1 = (Button) findViewById(R.id.btnShowAsDrawDown1);
        btnShowAsDrawDown1.setOnClickListener(this);
        btnShowAtLocation = (Button) findViewById(R.id.btnShowAt);
        btnShowAtLocation.setOnClickListener(this);
        initPopupWindow();
    }
    @Override
    public void onClick(View v) {
        // TODO Auto-generated method stub
        switch (v.getId()){
        case R.id.btnShowAsDrawDown:
            if (pop.isShowing()){
                pop.dismiss();
            }
            else{
                pop.showAsDropDown(v);
            }
            break;
        case R.id.btnShowAsDrawDown1:
            if (pop.isShowing()){
                pop.dismiss();
            }
            else{
                pop.showAsDropDown(v, 0, -160);
            }
            break;
        default:
            if (pop.isShowing()){
                pop.dismiss();
            }
            else{
                pop.showAtLocation(findViewById(R.id.main),
                        Gravity.CENTER_HORIZONTAL, 0, 0);
            }
            break;
        }
    }
    private void initPopupWindow(){
        view = this.getLayoutInflater().inflate(R.layout.popup_window, null);
        pop = new PopupWindow(view, ViewGroup.LayoutParams.FILL_PARENT,
                ViewGroup.LayoutParams.WRAP_CONTENT);
        pop.setOutsideTouchable(true);
        view.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                pop.dismiss();
            }
        });
    }
}


布局文件:popup_activity.xml

<?xml version="1.0" encoding="utf-8"?>                                  
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"                         
    android:orientation="vertical"                           
    android:id="@+id/main"                         
    android:layout_width="fill_parent"                          
    android:layout_height="fill_parent"> 
                                      
<TextView                                
    android:layout_width="fill_parent"                            
    android:layout_height="wrap_content"                           
    android:text="pop demo!"                           
    /> 
                                      
<Button                                 
    android:id="@+id/btnShowAsDrawDown"                           
    android:layout_width="fill_parent"                           
    android:layout_height="wrap_content"                         
    android:text="Show as drawndown(one parameter)"                          
    /> 
                                      
    <Button                               
    android:id="@+id/btnShowAsDrawDown1"                           
    android:layout_width="fill_parent"                          
    android:layout_height="wrap_content"                             
    android:text="Show as drawndown(three parameters)"                          
    />
                                      
    <Button                                
    android:id="@+id/btnShowAt"                       
    android:layout_width="fill_parent"                         
    android:layout_height="wrap_content"
    android:text="Show At Location"                            
    />                               
</LinearLayout>

布局文件:popup_window.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="fill_parent"
  android:layout_height="fill_parent"
  android:orientation="vertical"
  android:gravity="center_horizontal"
  android:background="#d3d3d3">
    <Button
       android:id="@+id/btn_pop"
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"
       android:text="Close"
       android:layout_margin="10dip" />
</LinearLayout>


二、一个能在自适应位置的PopupWindow

分享一个实例。看效果:




实现中使用的 PopupWindow。这里做了简单封装,其中有三个类组成:PopuItem、PopuJar、PopupWindows。

public class PopuItem {
    private Drawable icon;
    private Bitmap thumb;
    private String title;
    private int actionId = -1;
    private boolean selected;
    private boolean sticky;
                                                                                                                                                                                                                                                                                
    /**
     * Constructor
     *
     * @param actionId  Action id for case statements
     * @param title     Title
     * @param icon      Icon to use
     */
    public PopuItem(int actionId, String title, Drawable icon) {
        this.title = title;
        this.icon = icon;
        this.actionId = actionId;
    }
                                                                                                                                                                                                                                                                                
    /**
     * Constructor
     */
    public PopuItem() {
        this(-1, null, null);
    }
                                                                                                                                                                                                                                                                                
    /**
     * Constructor
     *
     * @param actionId  Action id of the item
     * @param title     Text to show for the item
     */
    public PopuItem(int actionId, String title) {
        this(actionId, title, null);
    }
                                                                                                                                                                                                                                                                                
    /**
     * Constructor
     *
     * @param icon {@link Drawable} action icon
     */
    public PopuItem(Drawable icon) {
        this(-1, null, icon);
    }
                                                                                                                                                                                                                                                                                
    /**
     * Constructor
     *
     * @param actionId  Action ID of item
     * @param icon      {@link Drawable} action icon
     */
    public PopuItem(int actionId, Drawable icon) {
        this(actionId, null, icon);
    }
                                                                                                                                                                                                                                                                                
    /**
     * Set action title
     *
     * @param title action title
     */
    public void setTitle(String title) {
        this.title = title;
    }
                                                                                                                                                                                                                                                                                
    /**
     * Get action title
     *
     * @return action title
     */
    public String getTitle() {
        return this.title;
    }
                                                                                                                                                                                                                                                                                
    /**
     * Set action icon
     *
     * @param icon {@link Drawable} action icon
     */
    public void setIcon(Drawable icon) {
        this.icon = icon;
    }
                                                                                                                                                                                                                                                                                
    /**
     * Get action icon
     * @return  {@link Drawable} action icon
     */
    public Drawable getIcon() {
        return this.icon;
    }
                                                                                                                                                                                                                                                                                
     /**
     * Set action id
     *
     * @param actionId  Action id for this action
     */
    public void setActionId(int actionId) {
        this.actionId = actionId;
    }
                                                                                                                                                                                                                                                                                
    /**
     * @return  Our action id
     */
    public int getActionId() {
        return actionId;
    }
                                                                                                                                                                                                                                                                                
    /**
     * Set sticky status of button
     *
     * @param sticky  true for sticky, pop up sends event but does not disappear
     */
    public void setSticky(boolean sticky) {
        this.sticky = sticky;
    }
                                                                                                                                                                                                                                                                                
    /**
     * @return  true if button is sticky, menu stays visible after press
     */
    public boolean isSticky() {
        return sticky;
    }
                                                                                                                                                                                                                                                                                
    /**
     * Set selected flag;
     *
     * @param selected Flag to indicate the item is selected
     */
    public void setSelected(boolean selected) {
        this.selected = selected;
    }
                                                                                                                                                                                                                                                                                
    /**
     * Check if item is selected
     *
     * @return true or false
     */
    public boolean isSelected() {
        return this.selected;
    }
                                                                                                                                                                                                                                                                            
    /**
     * Set thumb
     *
     * @param thumb Thumb image
     */
    public void setThumb(Bitmap thumb) {
        this.thumb = thumb;
    }
                                                                                                                                                                                                                                                                                
    /**
     * Get thumb image
     *
     * @return Thumb image
     */
    public Bitmap getThumb() {
        return this.thumb;
    }
}


public class PopuJar extends PopupWindows implements OnDismissListener {
    private View mRootView;
    private ImageView mArrowUp;
    private ImageView mArrowDown;
    private LayoutInflater mInflater;
    private ViewGroup mTrack;
    private ScrollView mScroller;
    private OnPopuItemClickListener mItemClickListener;
    private OnDismissListener mDismissListener;
                                                                                                                                                                                                                                                                                
    private List<PopuItem> PopuItems = new ArrayList<PopuItem>();
                                                                                                                                                                                                                                                                                
    private boolean mDidAction;
                                                                                                                                                                                                                                                                                
    private int mChildPos;
    private int mInsertPos;
    private int mAnimStyle;
    private int mOrientation;
    private int rootWidth=0;
                                                                                                                                                                                                                                                                                
    public static final int HORIZONTAL = 0;
    public static final int VERTICAL = 1;
                                                                                                                                                                                                                                                                                
    public static final int ANIM_GROW_FROM_LEFT = 1;
    public static final int ANIM_GROW_FROM_RIGHT = 2;
    public static final int ANIM_GROW_FROM_CENTER = 3;
    public static final int ANIM_REFLECT = 4;
    public static final int ANIM_AUTO = 5;
                                                                                                                                                                                                                                                                                
    /**
     * Constructor for default vertical layout
     *
     * @param context  Context
     */
    public PopuJar(Context context) {
        this(context, VERTICAL);
    }
                                                                                                                                                                                                                                                                            
    /**
     * Constructor allowing orientation override
     *
     * @param context    Context
     * @param orientation Layout orientation, can be vartical or horizontal
     */
    public PopuJar(Context context, int orientation) {
        super(context);
                                                                                                                                                                                                                                                                                    
        mOrientation = orientation;
                                                                                                                                                                                                                                                                                    
        mInflater    = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
                                                                                                                                                                                                                                                                            
        if (mOrientation == HORIZONTAL) {
            setRootViewId(R.layout.popup_horizontal);
        } else {
            setRootViewId(R.layout.popup_vertical);
        }
                                                                                                                                                                                                                                                                            
        mAnimStyle  = ANIM_AUTO;
        mChildPos   = 0;
    }
                                                                                                                                                                                                                                                                            
    /**
     * Get action item at an index
     *
     * @param index  Index of item (position from callback)
     *
     * @return  Action Item at the position
     */
    public PopuItem getPopuItem(int index) {
        return PopuItems.get(index);
    }
                                                                                                                                                                                                                                                                                
    /**
     * Set root view.
     *
     * @param id Layout resource id
     */
    public void setRootViewId(int id) {
        mRootView   = (ViewGroup) mInflater.inflate(id, null);
        mTrack      = (ViewGroup) mRootView.findViewById(R.id.tracks);
                                                                                                                                                                                                                                                                            
        mArrowDown  = (ImageView) mRootView.findViewById(R.id.arrow_down);
        mArrowUp    = (ImageView) mRootView.findViewById(R.id.arrow_up);
                                                                                                                                                                                                                                                                            
        mScroller   = (ScrollView) mRootView.findViewById(R.id.scroller);
                                                                                                                                                                                                                                                                                    
        //This was previously defined on show() method, moved here to prevent force close that occured
        //when tapping fastly on a view to show quickaction dialog.
        //Thanx to zammbi (github.com/zammbi)
        mRootView.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
                                                                                                                                                                                                                                                                                    
        setContentView(mRootView);
    }
                                                                                                                                                                                                                                                                                
    /**
     * Set animation style
     *
     * @param mAnimStyle animation style, default is set to ANIM_AUTO
     */
    public void setAnimStyle(int mAnimStyle) {
        this.mAnimStyle = mAnimStyle;
    }
                                                                                                                                                                                                                                                                                
    /**
     * Set listener for action item clicked.
     *
     * @param listener Listener
     */
    public void setOnPopuItemClickListener(OnPopuItemClickListener listener) {
        mItemClickListener = listener;
    }
                                                                                                                                                                                                                                                                                
    /**
     * Add action item
     *
     * @param action  {@link PopuItem}
     */
    public void addPopuItem(PopuItem action) {
        PopuItems.add(action);
                                                                                                                                                                                                                                                                                    
        String title    = action.getTitle();
        Drawable icon   = action.getIcon();
                                                                                                                                                                                                                                                                                    
        View container;
                                                                                                                                                                                                                                                                                    
        if (mOrientation == HORIZONTAL) {
            container = mInflater.inflate(R.layout.action_item_horizontal, null);
        } else {
            container = mInflater.inflate(R.layout.action_item_vertical, null);
        }
                                                                                                                                                                                                                                                                                    
        ImageView img   = (ImageView) container.findViewById(R.id.iv_icon);
        TextView text   = (TextView) container.findViewById(R.id.tv_title);
                                                                                                                                                                                                                                                                                    
        if (icon != null) {
            img.setImageDrawable(icon);
        } else {
            img.setVisibility(View.GONE);
        }
                                                                                                                                                                                                                                                                                    
        if (title != null) {
            text.setText(title);
        } else {
            text.setVisibility(View.GONE);
        }
                                                                                                                                                                                                                                                                                    
        final int pos       =  mChildPos;
        final int actionId  = action.getActionId();
                                                                                                                                                                                                                                                                                    
        container.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                if (mItemClickListener != null) {
                    mItemClickListener.onItemClick(PopuJar.this, pos, actionId);
                }
                                                                                                                                                                                                                                                                                            
                if (!getPopuItem(pos).isSticky()) {
                    mDidAction = true;
                                                                                                                                                                                                                                                                                                
                    dismiss();
                }
            }
        });
                                                                                                                                                                                                                                                                                    
        container.setFocusable(true);
        container.setClickable(true);
                                                                                                                                                                                                                                                                                         
        if (mOrientation == HORIZONTAL && mChildPos != 0) {
            View separator = mInflater.inflate(R.layout.horiz_separator, null);
                                                                                                                                                                                                                                                                                        
            RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.FILL_PARENT);
                                                                                                                                                                                                                                                                                        
            separator.setLayoutParams(params);
            separator.setPadding(5, 0, 5, 0);
                                                                                                                                                                                                                                                                                        
            mTrack.addView(separator, mInsertPos);
                                                                                                                                                                                                                                                                                        
            mInsertPos++;
        }
                                                                                                                                                                                                                                                                                    
        mTrack.addView(container, mInsertPos);
                                                                                                                                                                                                                                                                                    
        mChildPos++;
        mInsertPos++;
    }
                                                                                                                                                                                                                                                                                
    /**
     * Show quickaction popup. Popup is automatically positioned, on top or bottom of anchor view.
     *
     */
    public void show (View anchor) {
        preShow();
                                                                                                                                                                                                                                                                                    
        int xPos, yPos, arrowPos;
                                                                                                                                                                                                                                                                                    
        mDidAction          = false;
                                                                                                                                                                                                                                                                                    
        int[] location      = new int[2];
                                                                                                                                                                                                                                                                                
        anchor.getLocationOnScreen(location);
                                                                                                                                                                                                                                                                            
        Rect anchorRect     = new Rect(location[0], location[1], location[0] + anchor.getWidth(), location[1]
                            + anchor.getHeight());
                                                                                                                                                                                                                                                                            
        //mRootView.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
                                                                                                                                                                                                                                                                                    
        mRootView.measure(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
                                                                                                                                                                                                                                                                                
        int rootHeight      = mRootView.getMeasuredHeight();
                                                                                                                                                                                                                                                                                    
        if (rootWidth == 0) {
            rootWidth       = mRootView.getMeasuredWidth();
        }
                                                                                                                                                                                                                                                                                    
        int screenWidth     = mWindowManager.getDefaultDisplay().getWidth();
        int screenHeight    = mWindowManager.getDefaultDisplay().getHeight();
                                                                                                                                                                                                                                                                                    
        //automatically get X coord of popup (top left)
        if ((anchorRect.left + rootWidth) > screenWidth) {
            xPos        = anchorRect.left - (rootWidth-anchor.getWidth());      
            xPos        = (xPos < 0) ? 0 : xPos;
                                                                                                                                                                                                                                                                                        
            arrowPos    = anchorRect.centerX()-xPos;
                                                                                                                                                                                                                                                                                        
        } else {
            if (anchor.getWidth() > rootWidth) {
                xPos = anchorRect.centerX() - (rootWidth/2);
            } else {
                xPos = anchorRect.left;
            }
                                                                                                                                                                                                                                                                                        
            arrowPos = anchorRect.centerX()-xPos;
        }
                                                                                                                                                                                                                                                                                    
        int dyTop           = anchorRect.top;
        int dyBottom        = screenHeight - anchorRect.bottom;
                                                                                                                                                                                                                                                                            
        boolean onTop       = (dyTop > dyBottom) ? true : false;
                                                                                                                                                                                                                                                                            
        if (onTop) {
            if (rootHeight > dyTop) {
                yPos            = 15;
                LayoutParams l  = mScroller.getLayoutParams();
                l.height        = dyTop - anchor.getHeight();
            } else {
                yPos = anchorRect.top - rootHeight;
            }
        } else {
            yPos = anchorRect.bottom;
                                                                                                                                                                                                                                                                                        
            if (rootHeight > dyBottom) {
                LayoutParams l  = mScroller.getLayoutParams();
                l.height        = dyBottom;
            }
        }
                                                                                                                                                                                                                                                                                    
        showArrow(((onTop) ? R.id.arrow_down : R.id.arrow_up), arrowPos);
                                                                                                                                                                                                                                                                                    
        setAnimationStyle(screenWidth, anchorRect.centerX(), onTop);
                                                                                                                                                                                                                                                                                    
        mWindow.showAtLocation(anchor, Gravity.NO_GRAVITY, xPos, yPos);
    }
                                                                                                                                                                                                                                                                                
    /**
     * Set animation style
     *
     * @param screenWidth screen width
     * @param requestedX distance from left edge
     * @param onTop flag to indicate where the popup should be displayed. Set TRUE if displayed on top of anchor view
     *        and vice versa
     */
    private void setAnimationStyle(int screenWidth, int requestedX, boolean onTop) {
        int arrowPos = requestedX - mArrowUp.getMeasuredWidth()/2;
                                                                                                                                                                                                                                                                            
        switch (mAnimStyle) {
        case ANIM_GROW_FROM_LEFT:
            mWindow.setAnimationStyle((onTop) ? R.style.Animations_PopUpMenu_Left : R.style.Animations_PopDownMenu_Left);
            break;
                                                                                                                                                                                                                                                                                                
        case ANIM_GROW_FROM_RIGHT:
            mWindow.setAnimationStyle((onTop) ? R.style.Animations_PopUpMenu_Right : R.style.Animations_PopDownMenu_Right);
            break;
                                                                                                                                                                                                                                                                                                
        case ANIM_GROW_FROM_CENTER:
            mWindow.setAnimationStyle((onTop) ? R.style.Animations_PopUpMenu_Center : R.style.Animations_PopDownMenu_Center);
        break;
                                                                                                                                                                                                                                                                                        
        case ANIM_REFLECT:
            mWindow.setAnimationStyle((onTop) ? R.style.Animations_PopUpMenu_Reflect : R.style.Animations_PopDownMenu_Reflect);
        break;
                                                                                                                                                                                                                                                                                    
        case ANIM_AUTO:
            if (arrowPos <= screenWidth/4) {
                mWindow.setAnimationStyle((onTop) ? R.style.Animations_PopUpMenu_Left : R.style.Animations_PopDownMenu_Left);
            } else if (arrowPos > screenWidth/4 && arrowPos < 3 * (screenWidth/4)) {
                mWindow.setAnimationStyle((onTop) ? R.style.Animations_PopUpMenu_Center : R.style.Animations_PopDownMenu_Center);
            } else {
                mWindow.setAnimationStyle((onTop) ? R.style.Animations_PopUpMenu_Right : R.style.Animations_PopDownMenu_Right);
            }
                                                                                                                                                                                                                                                                                                
            break;
        }
    }
                                                                                                                                                                                                                                                                                
    /**
     * Show arrow
     *
     * @param whichArrow arrow type resource id
     * @param requestedX distance from left screen
     */
    private void showArrow(int whichArrow, int requestedX) {
        final View showArrow = (whichArrow == R.id.arrow_up) ? mArrowUp : mArrowDown;
        final View hideArrow = (whichArrow == R.id.arrow_up) ? mArrowDown : mArrowUp;
                                                                                                                                                                                                                                                                            
        final int arrowWidth = mArrowUp.getMeasuredWidth();
                                                                                                                                                                                                                                                                            
        showArrow.setVisibility(View.VISIBLE);
                                                                                                                                                                                                                                                                                    
        ViewGroup.MarginLayoutParams param = (ViewGroup.MarginLayoutParams)showArrow.getLayoutParams();
                                                                                                                                                                                                                                                                                   
        param.leftMargin = requestedX - arrowWidth / 2;
                                                                                                                                                                                                                                                                                    
        hideArrow.setVisibility(View.INVISIBLE);
    }
                                                                                                                                                                                                                                                                                
    /**
     * Set listener for window dismissed. This listener will only be fired if the quicakction dialog is dismissed
     * by clicking outside the dialog or clicking on sticky item.
     */
    public void setOnDismissListener(PopuJar.OnDismissListener listener) {
        setOnDismissListener(this);
                                                                                                                                                                                                                                                                                    
        mDismissListener = listener;
    }
                                                                                                                                                                                                                                                                                
    @Override
    public void onDismiss() {
        if (!mDidAction && mDismissListener != null) {
            mDismissListener.onDismiss();
        }
    }
                                                                                                                                                                                                                                                                                
    /**
     * Listener for item click
     *
     */
    public interface OnPopuItemClickListener {
        public abstract void onItemClick(PopuJar source, int pos, int actionId);
    }
                                                                                                                                                                                                                                                                                
    /**
     * Listener for window dismiss
     *
     */
    public interface OnDismissListener {
        public abstract void onDismiss();
    }
}
public class PopupWindows {
    protected Context mContext;
    protected PopupWindow mWindow;
    protected View mRootView;
    protected Drawable mBackground = null;
    protected WindowManager mWindowManager;
                                                                                                                                                                                                                                                                                
    /**
     * Constructor.
     *
     * @param context Context
     */
    public PopupWindows(Context context) {
        mContext    = context;
        mWindow     = new PopupWindow(context);
                                                                                                                                                                                                                                                                            
        mWindow.setTouchInterceptor(new OnTouchListener() {
            @Override
            public boolean onTouch(View v, MotionEvent event) {
                if (event.getAction() == MotionEvent.ACTION_OUTSIDE) {
                    mWindow.dismiss();
                                                                                                                                                                                                                                                                                                
                    return true;
                }
                                                                                                                                                                                                                                                                                            
                return false;
            }
        });
                                                                                                                                                                                                                                                                            
        mWindowManager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
    }
                                                                                                                                                                                                                                                                                
    /**
     * On dismiss
     */
    protected void onDismiss() {    
    }
                                                                                                                                                                                                                                                                                
    /**
     * On show
     */
    protected void onShow() {   
    }
                                                                                                                                                                                                                                                                            
    /**
     * On pre show
     */
    protected void preShow() {
        if (mRootView == null)
            throw new IllegalStateException("setContentView was not called with a view to display.");
                                                                                                                                                                                                                                                                                
        onShow();
                                                                                                                                                                                                                                                                            
        if (mBackground == null)
            mWindow.setBackgroundDrawable(new BitmapDrawable());
        else
            mWindow.setBackgroundDrawable(mBackground);
                                                                                                                                                                                                                                                                            
        mWindow.setWidth(WindowManager.LayoutParams.WRAP_CONTENT);
        mWindow.setHeight(WindowManager.LayoutParams.WRAP_CONTENT);
        mWindow.setTouchable(true);
        mWindow.setFocusable(true);
        mWindow.setOutsideTouchable(true);
                                                                                                                                                                                                                                                                            
        mWindow.setContentView(mRootView);
    }
                                                                                                                                                                                                                                                                            
    /**
     * Set background drawable.
     *
     * @param background Background drawable
     */
    public void setBackgroundDrawable(Drawable background) {
        mBackground = background;
    }
                                                                                                                                                                                                                                                                            
    /**
     * Set content view.
     *
     * @param root Root view
     */
    public void setContentView(View root) {
        mRootView = root;
                                                                                                                                                                                                                                                                                    
        mWindow.setContentView(root);
    }
                                                                                                                                                                                                                                                                            
    /**
     * Set content view.
     *
     * @param layoutResID Resource id
     */
    public void setContentView(int layoutResID) {
        LayoutInflater inflator = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
                                                                                                                                                                                                                                                                                    
        setContentView(inflator.inflate(layoutResID, null));
    }
                                                                                                                                                                                                                                                                            
    /**
     * Set listener on window dismissed.
     *
     * @param listener
     */
    public void setOnDismissListener(PopupWindow.OnDismissListener listener) {
        mWindow.setOnDismissListener(listener);
    }
                                                                                                                                                                                                                                                                            
    /**
     * Dismiss the popup window.
     */
    public void dismiss() {
        mWindow.dismiss();
    }
}

Popu调用时在onCreate使用如下:

PopuItem userItem   = new PopuItem(ID_USER, "用户", getResources().getDrawable(R.drawable.child_image));
PopuItem grounpItem     = new PopuItem(ID_GROUNP, "群组", getResources().getDrawable(R.drawable.user_group));
//use setSticky(true) to disable PopuJar dialog being dismissed after an item is clicked
userItem.setSticky(true);
                                                                                                                                                                                                                                                                            
//create PopuJar. Use PopuJar.VERTICAL or PopuJar.HORIZONTAL param to define layout
final PopuJar mPopu = new PopuJar(this, PopuJar.VERTICAL);
                                                                                                                                                                                                                                                                            
//add action items into PopuJar
mPopu.addPopuItem(userItem);
mPopu.addPopuItem(grounpItem);

显示popu:

mPopu.show(v); //v表示显示在那个view下面


转自:http://blog.csdn.net/xyz_lmn/article/details/6921097

源码:http://download.csdn.net/detail/xyz_lmn/4674374


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