69

当然,我们在这里处理的是 SDK 11 及更高版本。

我打算做类似的事情: 在此处输入图像描述

在其中的每个项目旁边PopupMenu,我想放置一个图标

我创建了一个XML文件并将其放在/menu

<menu xmlns:android="http://schemas.android.com/apk/res/android" >

    <item
        android:id="@+id/action_one"
        android:title="Sync"
        android:icon="@android:drawable/ic_popup_sync"
        />

    <item
        android:id="@+id/action_two"
        android:title="About"
        android:icon="@android:drawable/ic_dialog_info"
        />
</menu>

正如您所注意到的,在 xml 文件中,我定义了我想要的图标,但是,当弹出菜单显示时,它显示的是没有图标的图标。我应该怎么做才能使这两个图标出现?

4

12 回答 12

103

如果您使用的是 AppCompat v7,这种方式有效。这有点 hacky,但使用反射要好得多,并且让您仍然可以使用核心 Android PopupMenu:

PopupMenu menu = new PopupMenu(getContext(), overflowImageView);
menu.inflate(R.menu.popup);
menu.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() { ... });

MenuPopupHelper menuHelper = new MenuPopupHelper(getContext(), (MenuBuilder) menu.getMenu(), overflowImageView);
menuHelper.setForceShowIcon(true);
menuHelper.show();

res/menu/popup.xml

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">

    <item android:id="@+id/menu_share_location"
        android:title="@string/share_location"
        android:icon="@drawable/ic_share_black_24dp"/>

</menu>


这会导致使用菜单资源文件中定义的图标弹出菜单:

在此处输入图像描述

于 2016-08-18T20:26:42.867 回答
45

否则我会实施它:

创建PopUpWindow布局:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/llSortChangePopup"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/sort_popup_background"
android:orientation="vertical" >

<TextView
    android:id="@+id/tvDistance"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:text="@string/distance"
    android:layout_weight="1.0"
    android:layout_marginLeft="20dp"
    android:paddingTop="5dp"
    android:gravity="center_vertical"
    android:textColor="@color/my_darker_gray" />

<ImageView
    android:layout_marginLeft="11dp"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:src="@drawable/sort_popup_devider" 
    android:contentDescription="@drawable/sort_popup_devider"/>

<TextView
    android:id="@+id/tvPriority"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:text="@string/priority"
    android:layout_weight="1.0"
    android:layout_marginLeft="20dp"
    android:gravity="center_vertical"
    android:clickable="true"
    android:onClick="popupSortOnClick"
    android:textColor="@color/my_black" />


<ImageView
    android:layout_marginLeft="11dp"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:src="@drawable/sort_popup_devider" 
    android:contentDescription="@drawable/sort_popup_devider"/>

<TextView
    android:id="@+id/tvTime"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:text="@string/time"
    android:layout_weight="1.0"
    android:layout_marginLeft="20dp"
    android:gravity="center_vertical"
    android:clickable="true"
    android:onClick="popupSortOnClick"
    android:textColor="@color/my_black" />

<ImageView
    android:layout_marginLeft="11dp"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:src="@drawable/sort_popup_devider" 
    android:contentDescription="@drawable/sort_popup_devider"/>

<TextView
    android:id="@+id/tvStatus"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:text="@string/status"
    android:layout_weight="1.0"
    android:layout_marginLeft="20dp"
    android:gravity="center_vertical"
    android:textColor="@color/my_black" 
    android:clickable="true"
    android:onClick="popupSortOnClick"
    android:paddingBottom="10dp"/>

 </LinearLayout>

PopUpWindow在您的Activity

    // The method that displays the popup.
private void showStatusPopup(final Activity context, Point p) {

   // Inflate the popup_layout.xml
   LinearLayout viewGroup = (LinearLayout) context.findViewById(R.id.llStatusChangePopup);
   LayoutInflater layoutInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
   View layout = layoutInflater.inflate(R.layout.status_popup_layout, null);

   // Creating the PopupWindow
   changeStatusPopUp = new PopupWindow(context);
   changeStatusPopUp.setContentView(layout);
   changeStatusPopUp.setWidth(LinearLayout.LayoutParams.WRAP_CONTENT);
   changeStatusPopUp.setHeight(LinearLayout.LayoutParams.WRAP_CONTENT);
   changeStatusPopUp.setFocusable(true);

   // Some offset to align the popup a bit to the left, and a bit down, relative to button's position.
   int OFFSET_X = -20;
   int OFFSET_Y = 50;

   //Clear the default translucent background
   changeStatusPopUp.setBackgroundDrawable(new BitmapDrawable());

   // Displaying the popup at the specified location, + offsets.
   changeStatusPopUp.showAtLocation(layout, Gravity.NO_GRAVITY, p.x + OFFSET_X, p.y + OFFSET_Y);
}

最后弹出onClick一个按钮或其他任何东西:

 imTaskStatusButton.setOnClickListener(new OnClickListener() 
        {
            public void onClick(View v) 
            {
                 int[] location = new int[2];
                 currentRowId = position;
                 currentRow = v;    
                 // Get the x, y location and store it in the location[] array
                 // location[0] = x, location[1] = y.
                 v.getLocationOnScreen(location);

                 //Initialize the Point with x, and y positions
                 point = new Point();
                 point.x = location[0];
                 point.y = location[1];
                 showStatusPopup(TasksListActivity.this, point);
            }
        });

一个很好的例子PopUpWindow

http://androidresearch.wordpress.com/2012/05/06/how-to-create-popups-in-android/

于 2013-03-16T21:49:20.297 回答
29

Android 弹出菜单有一个隐藏的方法来显示菜单图标。使用 Java 反射来启用它,如下代码片段所示。

public static void setForceShowIcon(PopupMenu popupMenu) {
    try {
        Field[] fields = popupMenu.getClass().getDeclaredFields();
        for (Field field : fields) {
            if ("mPopup".equals(field.getName())) {
                field.setAccessible(true);
                Object menuPopupHelper = field.get(popupMenu);
                Class<?> classPopupHelper = Class.forName(menuPopupHelper
                        .getClass().getName());
                Method setForceIcons = classPopupHelper.getMethod(
                        "setForceShowIcon", boolean.class);
                setForceIcons.invoke(menuPopupHelper, true);
                break;
            }
        }
    } catch (Throwable e) {
        e.printStackTrace();
    }
}
于 2015-09-30T09:49:42.693 回答
28

MenuPopupHelperAppCompat 中的类具有@hide注释。如果这是一个问题,或者如果您出于某种原因无法使用 AppCompat,则还有另一种解决方案Spannable,在MenuItem包含图标和标题文本的标题中使用 a。

主要步骤是:

  • PopupMenumenuxml 文件膨胀你的
  • 如果任何项目有图标,则对所有项目执行此操作:
    • 如果该项目没有图标,请创建一个透明图标。这确保没有图标的项目将与有图标的项目对齐
    • 创建一个SpannableStringBuilder包含图标和标题
    • 将菜单项的标题设置为SpannableStringBuilder
    • 将菜单项的图标设置为空,“以防万一”

优点:没有反射。不使用任何隐藏的 API。可以使用框架 PopupMenu。

缺点:更多代码。如果您有一个没有图标的子菜单,它将在小屏幕上出现不需要的左侧填充。


细节:

首先,在文件中定义图标的大小dimens.xml

<dimen name="menu_item_icon_size">24dp</dimen>

然后,将xml中定义的图标移动到标题中的一些方法:

/**
 * Moves icons from the PopupMenu's MenuItems' icon fields into the menu title as a Spannable with the icon and title text.
 */
public static void insertMenuItemIcons(Context context, PopupMenu popupMenu) {
    Menu menu = popupMenu.getMenu();
    if (hasIcon(menu)) {
        for (int i = 0; i < menu.size(); i++) {
            insertMenuItemIcon(context, menu.getItem(i));
        }
    }
}

/**
 * @return true if the menu has at least one MenuItem with an icon.
 */
private static boolean hasIcon(Menu menu) {
    for (int i = 0; i < menu.size(); i++) {
        if (menu.getItem(i).getIcon() != null) return true;
    }
    return false;
}

/**
 * Converts the given MenuItem's title into a Spannable containing both its icon and title.
 */
private static void insertMenuItemIcon(Context context, MenuItem menuItem) {
    Drawable icon = menuItem.getIcon();

    // If there's no icon, we insert a transparent one to keep the title aligned with the items
    // which do have icons.
    if (icon == null) icon = new ColorDrawable(Color.TRANSPARENT);

    int iconSize = context.getResources().getDimensionPixelSize(R.dimen.menu_item_icon_size);
    icon.setBounds(0, 0, iconSize, iconSize);
    ImageSpan imageSpan = new ImageSpan(icon);

    // Add a space placeholder for the icon, before the title.
    SpannableStringBuilder ssb = new SpannableStringBuilder("       " + menuItem.getTitle());

    // Replace the space placeholder with the icon.
    ssb.setSpan(imageSpan, 1, 2, 0);
    menuItem.setTitle(ssb);
    // Set the icon to null just in case, on some weird devices, they've customized Android to display
    // the icon in the menu... we don't want two icons to appear.
    menuItem.setIcon(null);
}

最后,创建您的 PopupMenu 并在显示之前使用上述方法:

PopupMenu popupMenu = new PopupMenu(view.getContext(), view);
popupMenu.inflate(R.menu.popup_menu);
insertMenuItemIcons(textView.getContext(), popupMenu);
popupMenu.show();

截屏: 截屏

于 2017-01-15T21:28:00.830 回答
25

带有图标的弹出菜单使用MenuBuilderMenuPopupHelper

    MenuBuilder menuBuilder =new MenuBuilder(this);
    MenuInflater inflater = new MenuInflater(this);
    inflater.inflate(R.menu.menu, menuBuilder);
    MenuPopupHelper optionsMenu = new MenuPopupHelper(this, menuBuilder, view);
    optionsMenu.setForceShowIcon(true);

    // Set Item Click Listener
    menuBuilder.setCallback(new MenuBuilder.Callback() {
        @Override
        public boolean onMenuItemSelected(MenuBuilder menu, MenuItem item) {
            switch (item.getItemId()) {
                case R.id.opt1: // Handle option1 Click
                    return true;
                case R.id.opt2: // Handle option2 Click
                    return true;
                default:
                    return false;
            }
        }

        @Override
        public void onMenuModeChange(MenuBuilder menu) {}
    });


    // Display the menu
    optionsMenu.show();

菜单.xml

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">
    <item
        android:id="@+id/opt1"
        android:icon="@mipmap/ic_launcher"
        android:title="option 1" />
    <item
        android:id="@+id/opt2"
        android:icon="@mipmap/ic_launcher"
        android:title="option 2" />
</menu>

在此处输入图像描述

于 2016-11-28T08:01:15.273 回答
17

如果你不熟悉反射,你可以使用反射来实现它在我们的例子中,我们需要在运行时修改 popupMenu 行为,而不是扩展核心类并修改它;)希望有所帮助

private void showPopupMenu(View view) {
    // inflate menu
    PopupMenu popup = new PopupMenu(mcontext, view);
    MenuInflater inflater = popup.getMenuInflater();
    inflater.inflate(R.menu.main, popup.getMenu());

    Object menuHelper;
    Class[] argTypes;
    try {
        Field fMenuHelper = PopupMenu.class.getDeclaredField("mPopup");
        fMenuHelper.setAccessible(true);
        menuHelper = fMenuHelper.get(popup);
        argTypes = new Class[]{boolean.class};
        menuHelper.getClass().getDeclaredMethod("setForceShowIcon", argTypes).invoke(menuHelper, true);
    } catch (Exception e) {

    }
    popup.show();




} 
于 2017-09-17T15:43:12.083 回答
13

/res/menu 目录中的 list_item_menu.xml

<?xml version="1.0" encoding="utf-8"?>
    <menu xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:app="http://schemas.android.com/apk/res-auto">

            <item
                android:id="@+id/locale"
                android:title="Localizar"
                android:icon="@mipmap/ic_en_farmacia_ico"
                app:showAsAction="always">
            </item>

            <item android:id="@+id/delete"
                android:title="Eliminar"
                android:icon="@mipmap/ic_eliminar_ico"
                app:showAsAction="always">
            </item>
    </menu>

在我的活动中

private void showPopupOption(View v){
    PopupMenu popup = new PopupMenu(getContext(), v);
    popup.getMenuInflater().inflate(R.menu.list_item_menu, popup.getMenu());

    popup.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
        public boolean onMenuItemClick(MenuItem menu_item) {
            switch (menu_item.getItemId()) {
                case R.id.locale:
                    break;
                case R.id.delete:
                    break;
            }
            return true;
        }
    });

    MenuPopupHelper menuHelper = new MenuPopupHelper(getContext(), (MenuBuilder) popup.getMenu(), v);
    menuHelper.setForceShowIcon(true);
    menuHelper.setGravity(Gravity.END);
    menuHelper.show();
}

结果

弹出菜单

于 2017-04-01T04:42:07.580 回答
9

阅读 PopupMenu 源代码。我们可以通过以下代码显示图标:

Field field = popupMenu.getClass().getDeclaredField("mPopup");
field.setAccessible(true);
MenuPopupHelper menuPopupHelper = (MenuPopupHelper) field.get(popupMenu);
menuPopupHelper.setForceShowIcon(true);

但是 MenuPopupHelper.java 在 android 内部包中。所以我们应该使用反射:

    PopupMenu popupMenu = new PopupMenu(this, anchor);
    popupMenu.getMenuInflater().inflate(R.menu.process, popupMenu.getMenu());

    try {
        Field field = popupMenu.getClass().getDeclaredField("mPopup");
        field.setAccessible(true);
        Object menuPopupHelper = field.get(popupMenu);
        Class<?> cls = Class.forName("com.android.internal.view.menu.MenuPopupHelper");
        Method method = cls.getDeclaredMethod("setForceShowIcon", new Class[]{boolean.class});
        method.setAccessible(true);
        method.invoke(menuPopupHelper, new Object[]{true});
    } catch (Exception e) {
        e.printStackTrace();
    }

    popupMenu.show();
于 2015-06-04T14:18:41.853 回答
6

我用最简单的方法解决了我的问题,没想到这么简单:

在 main.xml 中:

<menu xmlns:android="http://schemas.android.com/apk/res/android" >

<item
    android:id="@+id/action_more"
    android:icon="@android:drawable/ic_menu_more"
    android:orderInCategory="1"
    android:showAsAction="always"
    android:title="More">
    <menu>
        <item
            android:id="@+id/action_one"
            android:icon="@android:drawable/ic_popup_sync"
            android:title="Sync"/>
        <item
            android:id="@+id/action_two"
            android:icon="@android:drawable/ic_dialog_info"
            android:title="About"/>
    </menu>
</item>

在 MainActivity.java

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.main, menu);
    return true;
}

这是使用子菜单的一个技巧

于 2013-03-16T23:08:04.227 回答
5

如果您想在弹出菜单中显示图标,请查看https://github.com/shehabic/Droppy,它非常酷且易于使用

于 2015-08-25T09:46:53.277 回答
1

基于@Ajay 的回答......这就是我所做的

 @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.add_task, menu);  // for the two icons in action bar
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {

            case R.id.menu:
                View menuItemView = findViewById(R.id.menu);
                MenuBuilder menuBuilder =new MenuBuilder(this);
                MenuInflater inflater = new MenuInflater(this);
                inflater.inflate(R.menu.popup, menuBuilder);
                MenuPopupHelper optionsMenu = new MenuPopupHelper(this, menuBuilder, menuItemView); 
                optionsMenu.setForceShowIcon(true);
                optionsMenu.show();

            default:
                return super.onOptionsItemSelected(item);
        }
    }

弹出窗口

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">
<item
    android:id="@+id/opt1"
    android:icon="@drawable/change_pic"
    android:title="Change Picture" />
<item
    android:id="@+id/opt2"
    android:icon="@drawable/change_pin"
    android:title="Change Password" />

    <item
        android:id="@+id/opt3"
        android:icon="@drawable/sign_out"
        android:title="Sign Out" />
</menu>

截屏

在此处输入图像描述

于 2016-12-14T07:02:01.130 回答
0

我正在尝试@Stephen Kidson 的回答和@david.schereiber 的建议,我意识到setOnMenuItemClickListenerMenuBuilder. 稍微弄乱了v7的源代码,我找到了这个解决方案:

        MenuBuilder menuBuilder = new MenuBuilder(mContext);
        new SupportMenuInflater(mContext).inflate(R.menu.my_menu, menuBuilder);
        menuBuilder.setCallback(new MenuBuilder.Callback() {
            @Override
            public boolean onMenuItemSelected(MenuBuilder menu, MenuItem menuItem) {
                // your "setOnMenuItemClickListener" code goes here
                switch (menuItem.getItemId()) {
                    case R.id.menu_id1:
                        // do something 1
                        return true;

                    case R.id.menu_id2:
                        // do something 2
                        return true;
                }
                return false;
            }

            @Override
            public void onMenuModeChange(MenuBuilder menu) {
            }
        });
        MenuPopupHelper menuHelper = new MenuPopupHelper(mContext, menuBuilder, v);
        menuHelper.setForceShowIcon(true); // show icons!!!!!!!!
        menuHelper.show();
于 2016-11-07T09:22:18.597 回答