Android菜单项自定义布局

当我点击actionbar中的某个操作按钮时，会出现一个。 我希望我的弹出菜单中的菜单项具有如下自定义布局：

布局/菜单项\u layout.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:id="@+id/menuItemLayout"

    android:orientation="horizontal" >

    <ImageView
        android:id="@+id/imageViewMenuItem"
        android:layout_width="20dip"
        android:layout_height="20dip"
        android:src="@drawable/abc_list_focused_holo" />

    <TextView
        android:id="@+id/textViewMenuItem"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="TextViewMenuItem" />

</LinearLayout>

<LinearLayout
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:orientation="horizontal" >

    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Window test" />
</LinearLayout>

但当弹出菜单出现时，该项为空。 我使用setActionview（）方法是错误的？

---

谢谢。

对于不能使用菜单的自定义布局，另一个选项是

在名为my layout.XML的res/layout文件夹中创建此XML文件

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:id="@+id/menuItemLayout"

    android:orientation="horizontal" >

    <ImageView
        android:id="@+id/imageViewMenuItem"
        android:layout_width="20dip"
        android:layout_height="20dip"
        android:src="@drawable/abc_list_focused_holo" />

    <TextView
        android:id="@+id/textViewMenuItem"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="TextViewMenuItem" />

</LinearLayout>

<LinearLayout
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:orientation="horizontal" >

    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Window test" />
</LinearLayout>

---

最终PopupWindow PopupWindow=新PopupWindow（）；//膨胀布局或动态添加视图 LayoutFlater充气器=（LayoutFlater）context.getSystemService（context.LAYOUT\u充气器\u服务）； 视图=充气机。充气（R.layout.alert\u reply\u chat，空）；popupWindow.setFocusable（真）；popupWindow.setWidth（WindowManager.LayoutParams.WRAP_内容）；弹出窗口设置高度（180）；popupWindow.setBackgroundDrawable（空）；popupWindow.setClippingEnabled（假）；popupWindow.setTouchable（真）；设置内容视图（视图）；返回弹出窗口；

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//以上是我选中的工作代码，默认情况下，弹出菜单（及其项）的布局无法自定义。在下面的解决方案中，我创建了一个带有水平布局的弹出菜单。在本例中，我使用TextView作为可单击项，但您可以轻松地用按钮替换它们。您可以根据需要自定义菜单项

1-自定义弹出菜单类：

public class PopupMenuCustomLayout {
    private PopupMenuCustomOnClickListener onClickListener;
    private Context context;
    private PopupWindow popupWindow;
    private int rLayoutId;
    private View popupView;

    public PopupMenuCustomLayout(Context context, int rLayoutId, PopupMenuCustomOnClickListener onClickListener) {
        this.context = context;
        this.onClickListener = onClickListener;
        this.rLayoutId = rLayoutId;
        LayoutInflater inflater = (LayoutInflater) context.getSystemService(LAYOUT_INFLATER_SERVICE);
        popupView = inflater.inflate(rLayoutId, null);
        int width = LinearLayout.LayoutParams.WRAP_CONTENT;
        int height = LinearLayout.LayoutParams.WRAP_CONTENT;
        boolean focusable = true;
        popupWindow = new PopupWindow(popupView, width, height, focusable);
        popupWindow.setElevation(10);

        LinearLayout linearLayout = (LinearLayout) popupView;
        for (int i = 0; i < linearLayout.getChildCount(); i++) {
            View v = linearLayout.getChildAt(i);
            v.setOnClickListener( v1 -> { onClickListener.onClick( v1.getId()); popupWindow.dismiss(); });
        }
    }
    public void setAnimationStyle( int animationStyle) {
        popupWindow.setAnimationStyle(animationStyle);
    }
    public void show() {
        popupWindow.showAtLocation( popupView, Gravity.CENTER, 0, 0);
    }

    public void show( View anchorView, int gravity, int offsetX, int offsetY) {
        popupWindow.showAsDropDown( anchorView, 0, -2 * (anchorView.getHeight()));
    }

    public interface PopupMenuCustomOnClickListener {
        public void onClick(int menuItemId);
    }
}

---

在20多个问题和答案之间，你的答案是最好的。你必须投+500或+1000的赞成票。弹出窗口上有黑色边框，用

popupWindow.setBackgroundDrawable（null）固定我一点也不明白。那为什么弹出菜单会存在呢？如果您不能在自定义版面中使用它，并且只能在主版面中使用它，那么为什么不在主版面中使用ActionBar呢？我看不出弹出菜单有什么用。按钮项=（按钮）视图的意义是什么。findViewById（R.id.button1）；我没有看到它在任何地方使用。
public class PopupMenuCustomLayout {
    private PopupMenuCustomOnClickListener onClickListener;
    private Context context;
    private PopupWindow popupWindow;
    private int rLayoutId;
    private View popupView;

    public PopupMenuCustomLayout(Context context, int rLayoutId, PopupMenuCustomOnClickListener onClickListener) {
        this.context = context;
        this.onClickListener = onClickListener;
        this.rLayoutId = rLayoutId;
        LayoutInflater inflater = (LayoutInflater) context.getSystemService(LAYOUT_INFLATER_SERVICE);
        popupView = inflater.inflate(rLayoutId, null);
        int width = LinearLayout.LayoutParams.WRAP_CONTENT;
        int height = LinearLayout.LayoutParams.WRAP_CONTENT;
        boolean focusable = true;
        popupWindow = new PopupWindow(popupView, width, height, focusable);
        popupWindow.setElevation(10);

        LinearLayout linearLayout = (LinearLayout) popupView;
        for (int i = 0; i < linearLayout.getChildCount(); i++) {
            View v = linearLayout.getChildAt(i);
            v.setOnClickListener( v1 -> { onClickListener.onClick( v1.getId()); popupWindow.dismiss(); });
        }
    }
    public void setAnimationStyle( int animationStyle) {
        popupWindow.setAnimationStyle(animationStyle);
    }
    public void show() {
        popupWindow.showAtLocation( popupView, Gravity.CENTER, 0, 0);
    }

    public void show( View anchorView, int gravity, int offsetX, int offsetY) {
        popupWindow.showAsDropDown( anchorView, 0, -2 * (anchorView.getHeight()));
    }

    public interface PopupMenuCustomOnClickListener {
        public void onClick(int menuItemId);
    }
}

<?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:background="@color/white"
    android:orientation="horizontal">
    <TextView
        android:id="@+id/popup_menu_custom_item_a"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="A"
        android:textAppearance="?android:textAppearanceMedium" />
    <TextView
        android:id="@+id/popup_menu_custom_item_b"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginStart="10dp"
        android:text="B"
        android:textAppearance="?android:textAppearanceMedium" />
    // ...
</LinearLayout>

PopupMenuCustomLayout popupMenu = new PopupMenuCustomLayout(
        MainActivity.mainActivity, R.layout.popup_menu_custom_layout,
        new PopupMenuCustomLayout.PopupMenuCustomOnClickListener() {
            @Override
            public void onClick(int itemId) {
                // log statement: "Clicked on: " + itemId
                switch (itemId) {
                    case R.id.popup_menu_custom_item_a:
                        // log statement: "Item A was clicked!"
                        break;
                }
            }
        });
// Method 1: popupMenu.show();
// Method 2: via an anchor view: 
popupMenu.show( anchorView, Gravity.CENTER, 0, 0);