宁可枝头抱香死，何曾吹落北风中。这篇文章主要讲述Android 使用PopupWindow实现弹出更多的菜单相关的知识，希望能为你提供帮助。
最近想要做一个弹出更多的菜单， 而原生的弹出菜单却不是我们想要的效果， 所以必然要自定义菜单咯。本人也是借鉴网上的资料进行封装的， 感觉还蛮不错的。
原生的菜单如下图：

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自定义之后的效果图：

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是不是看到这里之后， 对比可知， 原生的效果不太理想， 所以还是再自己定义吧！
源码下载
1、PopupWindow可以说是一个浮动在Activity之上的容器， 通常用来显示自定义的视图。弹出菜单的封装PopMenuMore

/** * 对弹出菜单的封装. * http://blog.csdn.net/maosidiaoxian/article/details/39178167 * Author: msdx (645079761@ qq.com) * Time: 14-6-13 下午1:51 */ public class PopMenuMore { /** * 上下文. */ private Context mContext; /** * 菜单项 */ private ArrayList< PopMenuMoreItem> mItemList; /** * 列表适配器. */ private BaseAdapter mAdapter; /** * 菜单选择监听. */ private OnItemSelectedListener mListener; /** * 下角图标 */ private ImageView cornerIcon; /** * 列表. */ private ListView mListView; /** * 弹出窗口. */ private PopupWindow mPopupWindow; public PopMenuMore(Context context) { mContext = context; mItemList = new ArrayList< > (); View view = onCreateView(context); view.setFocusableInTouchMode(true); mAdapter = onCreateAdapter(context, mItemList); cornerIcon = findCornerView(view); mListView = findListView(view); mListView.setAdapter(mAdapter); mListView.setOnItemClickListener(new AdapterView.OnItemClickListener() { @ Override public void onItemClick(AdapterView< ?> parent, View view, int position, long id) { PopMenuMoreItem item = (PopMenuMoreItem) mAdapter.getItem(position); if (mListener != null) { mListener.selected(view, item, position); } mPopupWindow.dismiss(); } }); view.setOnKeyListener(new View.OnKeyListener() { @ Override public boolean onKey(View v, int keyCode, KeyEvent event) { if (keyCode = = KeyEvent.KEYCODE_MENU & & mPopupWindow.isShowing()) { mPopupWindow.dismiss(); return true; } return false; } }); mPopupWindow = new PopupWindow(view, ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT, true); mPopupWindow.setBackgroundDrawable(new ColorDrawable(0x00000000)); setBackgroundColor(Color.parseColor(" #000000" )); setCorner(R.mipmap.triangle); }/** * 设置ListView背景 * * @ param argb Color.parseColor(" .." ) */ public void setBackgroundColor(int argb) { //int strokeWidth = 5; // 3dp 边框宽度 int roundRadius = 5; // 8dp 圆角半径 //int strokeColor = Color.parseColor(" #2E3135" ); //边框颜色 //int fillColor = Color.parseColor(" #DFDFE0" ); //内部填充颜色 GradientDrawable gd = new GradientDrawable(); //创建drawable gd.setColor(argb); gd.setCornerRadius(roundRadius); //gd.setStroke(strokeWidth, strokeColor); mListView.setBackgroundDrawable(gd); }/** * 设置下角图标 * * @ param resId */ public void setCorner(int resId) { cornerIcon.setBackgroundResource(resId); }protected View onCreateView(Context context) { return LayoutInflater.from(context).inflate(R.layout.layout_popmenu_more, null); }protected ImageView findCornerView(View view) { return (ImageView) view.findViewById(R.id.corner_iv); }protected ListView findListView(View view) { return (ListView) view.findViewById(R.id.menu_listview); }/** * 菜单列表中的适配器. * * @ param context * @ param items表示所有菜单项. * @ return */ protected BaseAdapter onCreateAdapter(Context context, ArrayList< PopMenuMoreItem> items) { return new PopMenuMoreAdapter(context, items); }/** * 添加菜单项 * * @ param item */ public void addItem(PopMenuMoreItem item) { mItemList.add(item); mAdapter.notifyDataSetChanged(); }public void addItems(List< PopMenuMoreItem> items) { if (items != null) { mItemList.clear(); } for (PopMenuMoreItem item : items) { mItemList.add(item); } mAdapter.notifyDataSetChanged(); }/** * 作为指定View的下拉控制显示. * * @ param parent 所指定的View */ public void showAsDropDown(View parent) { mPopupWindow.showAsDropDown(parent); }/** * 隐藏菜单. */ public void dismiss() { mPopupWindow.dismiss(); }/** * 设置菜单选择监听. * * @ param listener 监听器. */ public void setOnItemSelectedListener(OnItemSelectedListener listener) { mListener = listener; }/** * 当前菜单是否正在显示. * * @ return */ public boolean isShowing() { return mPopupWindow.isShowing(); }/** * 菜单项选择监听接口. */ public interface OnItemSelectedListener { /** * 菜单被选择时的回调接口. * * @ param view被选择的内容的View. * @ param item被选择的菜单项. * @ param position 被选择的位置. */ void selected(View view, PopMenuMoreItem item, int position); } }

2、菜单中ListView的适配器： PopMenuMoreAdapter

/** * @ author SoBan * @ create 2017/4/12 10:29. */public class PopMenuMoreAdapter extends BaseAdapter {private ArrayList< PopMenuMoreItem> items; private Context context; public PopMenuMoreAdapter(Context context, ArrayList< PopMenuMoreItem> items) { this.context = context; this.items = items; }@ Override public int getCount() { return items.size(); }@ Override public PopMenuMoreItem getItem(int position) { return items.get(position); }@ Override public long getItemId(int position) { return position; }@ Override public View getView(int position, View view, ViewGroup parent) { if (view = = null) { view = LayoutInflater.from(context).inflate(R.layout.item_popmenu_more, null); ViewHolder holder = new ViewHolder(); holder.icon = (ImageView) view.findViewById(R.id.menu_icon); holder.text = (TextView) view.findViewById(R.id.menu_text); view.setTag(holder); } else if (view.getParent() != null) { ((ViewGroup) view.getParent()).removeView(view); } ViewHolder holder = (ViewHolder) view.getTag(); PopMenuMoreItem item = items.get(position); if (item.getResId() = = 0) { holder.icon.setVisibility(View.GONE); } holder.text.setText(item.getText()); return view; }private class ViewHolder { ImageView icon; TextView text; } }

4、菜单项中item:PopMenuMoreItem

/** * 菜单项. */ public class PopMenuMoreItem { public int id; //标识 public int resId; //资源图标 public String text; //文字public PopMenuMoreItem(int id, String text) { this.id = id; this.resId = 0; this.text = text; }public PopMenuMoreItem(int id, int resId, String text) { this.id = id; this.resId = resId; this.text = text; }public int getId() { return id; }public void setId(int id) { this.id = id; }public int getResId() { return resId; }public void setResId(int resId) { this.resId = resId; }public String getText() { return text; }public void setText(String text) { this.text = text; } }

4、宽度适配内容、不滚动的ListView： PopMenuMoreListView

/** * 宽度适配内容的ListView. * Author: msdx (645079761@ qq.com) * Time: 14-9-2 下午5:14 */ public class PopMenuMoreListView extends ListView {public PopMenuMoreListView(Context context) { super(context); }public PopMenuMoreListView(Context context, AttributeSet attrs) { super(context, attrs); }public PopMenuMoreListView(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); }@ Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { int width = 0; for (int i = 0; i < getChildCount(); i+ + ) { View child = getChildAt(i); child.measure(MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED), heightMeasureSpec); int w = child.getMeasuredWidth(); if (w > width) width = w; }widthMeasureSpec = MeasureSpec.makeMeasureSpec(width + getPaddingLeft() + getPaddingRight(), MeasureSpec.EXACTLY); super.onMeasure(widthMeasureSpec, heightMeasureSpec); } }

5、item的布局： item_popmenu_more.xml

< ?xml version= " 1.0" encoding= " utf-8" ?> < LinearLayout xmlns:android= " http://schemas.android.com/apk/res/android" android:layout_width= " wrap_content" android:layout_height= " wrap_content" android:paddingBottom= " 10dip" android:paddingLeft= " 20dip" android:paddingRight= " 20dip" android:paddingTop= " 10dip" > < ImageView android:id= " @ + id/menu_icon" android:layout_width= " wrap_content" android:layout_height= " wrap_content" android:layout_gravity= " center_vertical" android:layout_marginLeft= " 5dip" android:layout_marginRight= " 5dip" android:src= " @ mipmap/demand_icon_location" /> < TextView android:id= " @ + id/menu_text" android:layout_width= " wrap_content" android:layout_height= " wrap_content" android:layout_gravity= " center_vertical" android:singleLine= " true" android:textColor= " #FFFFFF" /> < /LinearLayout>

6、更多菜单的布局： layout_popmenu_more.xml

< ?xml version= " 1.0" encoding= " utf-8" ?> < LinearLayout xmlns:android= " http://schemas.android.com/apk/res/android" android:layout_width= " match_parent" android:layout_height= " wrap_content" android:orientation= " vertical" android:paddingRight= " 5dip" > < ImageView android:id= " @ + id/corner_iv" android:layout_width= " wrap_content" android:layout_height= " wrap_content" android:layout_gravity= " right" android:layout_marginRight= " 15dip" android:contentDescription= " @ null" /> < soban.orderscroll.PopMenuMoreListView android:id= " @ + id/menu_listview" android:layout_width= " wrap_content" android:layout_height= " wrap_content" android:layout_gravity= " right" android:cacheColorHint= " @ android:color/transparent" android:listSelector= " @ android:color/transparent" android:divider= " #FFFFFF" android:dividerHeight= " 1px" android:focusable= " true" /> < /LinearLayout>

7、例子Activity: MainActivity

public class MainActivity extends Activity {private static final int USER_SEARCH = 0; private static final int USER_ADD = 1; private PopMenuMore mMenu; private TextView mTextView; @ Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); initMenu(); mTextView = (TextView) findViewById(R.id.hello_tv); mTextView.setOnClickListener(new View.OnClickListener() { @ Override public void onClick(View view) { mMenu.showAsDropDown(mTextView); } }); }private void initMenu() { mMenu = new PopMenuMore(this); // mMenu.setCorner(R.mipmap.demand_icon_location); // mMenu.setBackgroundColor(Color.parseColor(" #ff8800" )); ArrayList< PopMenuMoreItem> items = new ArrayList< > (); items.add(new PopMenuMoreItem(USER_SEARCH, " 搜索" )); items.add(new PopMenuMoreItem(USER_ADD, " 添加" )); items.add(new PopMenuMoreItem(USER_SEARCH, " 搜索" )); items.add(new PopMenuMoreItem(USER_ADD, " 添加" )); items.add(new PopMenuMoreItem(USER_SEARCH, " 搜索" )); items.add(new PopMenuMoreItem(USER_ADD, " 添加" )); /*items.add(new PopMenuMoreItem(USER_SEARCH, R.mipmap.demand_icon_number, " 搜索" )); items.add(new PopMenuMoreItem(USER_ADD, R.mipmap.demand_icon_location, " 添加" )); items.add(new PopMenuMoreItem(USER_SEARCH, R.mipmap.demand_icon_number, " 搜索" )); items.add(new PopMenuMoreItem(USER_ADD, R.mipmap.demand_icon_location, " 添加" )); items.add(new PopMenuMoreItem(USER_SEARCH, R.mipmap.demand_icon_number, " 搜索" )); items.add(new PopMenuMoreItem(USER_ADD, R.mipmap.demand_icon_location, " 添加" )); */mMenu.addItems(items); mMenu.setOnItemSelectedListener(new PopMenuMore.OnItemSelectedListener() { @ Override public void selected(View view, PopMenuMoreItem item, int position) { switch (item.id) { case USER_SEARCH: //startActivity(new Intent(this, UserSearchActivity.class)); break; case USER_ADD: //startActivity(new Intent(getActivity(), UserAddActivity.class)); break; } } }); } }

8、例子布局： activity_main.xml

< ?xml version= " 1.0" encoding= " utf-8" ?> < RelativeLayout xmlns:android= " http://schemas.android.com/apk/res/android" xmlns:tools= " http://schemas.android.com/tools" android:id= " @ + id/activity_main" android:layout_width= " match_parent" android:layout_height= " match_parent" android:paddingBottom= " @ dimen/activity_vertical_margin" android:paddingLeft= " @ dimen/activity_horizontal_margin" android:paddingRight= " @ dimen/activity_horizontal_margin" android:paddingTop= " @ dimen/activity_vertical_margin" > < TextView android:id= " @ + id/hello_tv" android:layout_width= " wrap_content" android:layout_height= " wrap_content" android:text= " Hello World!" /> < /RelativeLayout>

9、所需资源文件：

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最近项目也蛮急的， 这里写的有点匆忙， 可能写的就没有那么具体， 希望各位朋友看的懂


借鉴： http://blog.csdn.net/maosidiaoxian/article/details/39178167
【Android 使用PopupWindow实现弹出更多的菜单】代码设置背景圆角+ 边框+ 圆半径： http://blog.csdn.net/houshunwei/article/details/17392409

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