Android开发 - 如何制作横向弹出菜单 [英] Android development - how to make horizontal popup menu

问题描述

我正在研究简单的Android应用程序，并希望在单击ImageButton之后以水平方式显示弹出菜单（溢出菜单）（所有项目都以单行对齐），如下所示 - 图片 [ ^ ]。有什么方法可以实现吗？



我的代码：



MainActivity.class

I'm working on simple Android app and want the Popup Menu(Overflow Menu) to be shown in Horizontal way (all items aligned in single line) after I click the ImageButton, something like this - Image[^]. Is there any way to make it happen?

My Code :

MainActivity.class

protected void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        //Button to show PopupMenu
        ImageButton buttonPlus = (ImageButton) findViewById(R.id.popupButton);
        popupMenu = new PopupMenu(this, buttonPlus);
        MenuInflater inflater = popupMenu.getMenuInflater();
        inflater.inflate(R.menu.menu, popupMenu.getMenu());

        buttonPlus.setOnClickListener(new ImageButton.OnClickListener()
        {
            public void onClick(View v)
            {
                popupMenu.show();
            }
        });
    }

menu.xml

menu.xml

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

      xmlns:app="http://schemas.android.com/apk/res-auto"

      xmlns:tools="http://schemas.android.com/tools"

      tools:context="com.example.captain.pc_1.MainActivity">

    <group android:checkableBehavior="single">
        <item

            android:id="@+id/_N1"

            android:orderInCategory="100"

            android:title="N1"

            app:showAsAction="never"/>

        <item

            android:id="@+id/_M2"

            android:orderInCategory="101"

            android:title="N2"

            app:showAsAction="never"/>
    </group>

</menu>

以上鳕鱼e给出的输出看起来像这个



我曾尝试过：



我看到很多帖子与我的问题有关，但都没有成功。他们中的大多数人都要求使用Horizo​​ntalScrollView，但这不是我想要的。任何帮助将不胜感激。

The Above code gives output looks something like this

What I have tried:

I saw many post related to my question but none of them worked out. Most of them asked to use HorizontalScrollView but it's not what I want. Any Help will be appreciated.

推荐答案

如果您想要弹出窗口的自定义布局，您必须使用 PopupWindow [ ^ ]

尝试以下演示：

1.创建一个这样的popup.xml：

If you want to have custom layout for popup, you have to use PopupWindow[^]
Try out the following demo:
1. Create a popup.xml like this:

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

    android:layout_width="wrap_content"

    android:layout_height="wrap_content"

    android:orientation="horizontal"

    android:removed="#f46464">
    <RadioGroup

        android:layout_width="match_parent"

        android:layout_height="match_parent"

        android:orientation="horizontal"

        android:id="@+id/radioGroupGender"

        android:layout_weight="2">
        <RadioButton

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:text="Female"

            android:id="@+id/radFemale"

            android:layout_gravity="center_vertical" />
        <RadioButton

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:text="Male"

            android:id="@+id/radMale"

            android:layout_gravity="center_vertical" />
    </RadioGroup>
</LinearLayout>

2.将以下代码添加到onClick（）方法：

2. Add the following code to the onClick() method:

LayoutInflater layoutInflater
        = (LayoutInflater) getBaseContext()
        .getSystemService(LAYOUT_INFLATER_SERVICE);

final View popupView = layoutInflater.inflate(R.layout.popup, null);
final PopupWindow popupWindow = new PopupWindow(
        popupView,
        LayoutParams.WRAP_CONTENT,
        LayoutParams.WRAP_CONTENT, true);

popupWindow.setOutsideTouchable(true);
popupWindow.setFocusable(true);

popupWindow.setBackgroundDrawable(new BitmapDrawable());

View parent = view.getRootView();

popupWindow.showAtLocation(parent, Gravity.CENTER, 0, 0);

您将弹出水平对齐的单选按钮。当你在弹出式菜单中点击它之外它会关闭。

You will get a pop up with horizontal aligned radio buttons. It closes when you click outside of it like a pop up menu.

这篇关于Android开发 - 如何制作横向弹出菜单的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！