通过点击菜单选项项打开上下文菜单 [英] Open context menu by clicking on menu options item

问题描述

我使用Android提出申请。
我有我的地方创建一个选项菜单中的活动像下面

  @覆盖
公共布尔onCreateOptionsMenu（菜单菜单）{
    MenuInflater吹气= getMenuInflater（）;
    inflater.inflate（R.menu.mymenu，菜单）;
    返回true;
}
 

菜单是从一个XML文件加载：

<？pre> ＆LT; XML版本=1.0编码=UTF-8＆GT;＆LT;菜单的xmlns：机器人=htt​​p://schemas.android.com/apk / RES / Android的＆GT; ＆LT;项目的android：标题=项目1机器人：ID =@ + ID / ITEM1/＆GT;＆LT; /菜单＆gt;


当我点击项目1，我用onOptionsItemSelected我的活动点击一样，之后的工作：

  @覆盖
公共布尔onOptionsItemSelected（菜单项项）{
    开关（item.getItemId（））{
    案例R.id.item1：
        //这里，我想开一个上下文菜单
        返回true;
    默认情况下：
        返回super.onOptionsItemSelected（项目）;
    }
}
 

所以，当第1项用户点击我想开一个上下文菜单。首先，我不知道是否有可能直接打开上下文菜单，而无需使用屏幕上的像互联网上的几个教程保持位置表现出来。

如果有可能我怎么能打开这样一个上下文菜单？

我想使用 registerForContextMenu（）和 openContextMenu（）在我的第1项，但其观点的情况下，我应该把参数？

如果有人要进行的方式的想法，我想知道我怎么要做到这一点。

解决方案

如果你真的想有一个上下文菜单，那么我会做一个长期preSS使用上下文菜单，因为它是设计的Andr​​oid上的给定项。人们习惯了这种和应用程序不应该在不同的。

可选择性的是一个有点复杂。你可以做的是让你的菜单，你风格为对话窗口（你知道有一个褪色的半透明背景）的一个独立的活动加载。这可以通过在manifest.xml文件应用 Theme.Dialog 风格您的活动很容易做到：

 ＆LT;活动机器人：名字=。activities.TagPopupActivity
            机器人：标签=标记安卓主题=@安卓风格/ Theme.Dialog＆GT;
                ...
＆LT; /活性GT;
 

或者你也可以直接创建一个对话框窗口，说明这里 。然后，通过在主列表活动实施相应的点击监听器获取上下文（即列表中单击），然后当上了项目的用户点击，您检索其ID，并将其打包成一个包，你期待你的菜单 -activity风格作为一个弹出对话框。

I use Android to make an application. I have an activity where I create an option menu like below

    @Override
public boolean onCreateOptionsMenu(Menu menu) {
    MenuInflater inflater = getMenuInflater();
    inflater.inflate(R.menu.mymenu, menu);
    return true;
}

The menu is loaded from an xml file :

<?xml version="1.0" encoding="utf-8"?><menu xmlns:android="http://schemas.android.com/apk/res/android"> <item android:title="Item1" android:id="@+id/item1" /></menu>

When I click on item 1, I use onOptionsItemSelected on my activity to work after the click like that :

    @Override
public boolean onOptionsItemSelected(MenuItem item) {
    switch(item.getItemId()) {
    case R.id.item1 :
        // here, I would like to open a contextual menu
        return true;
    default :
        return super.onOptionsItemSelected(item);
    }
}

So, when user click on item 1 I would like to open a contextual menu. First, I don't know if it's possible to open a contextual menu directly without using hold position on screen like several tutorials on internet show it.

If it's possible how can I open a contextual menu in that way ?

I thought to use registerForContextMenu() and openContextMenu() in the case of my item 1 but which view should I put in parameter ?

If someone has an idea about the way to make that, I would like to know how I must do that.

解决方案

If you really want to have a contextual menu, then I'd use the contextual menu as it is designed in Android by doing a long-press on a given item. People are accustomed to this and apps shouldn't differ in that.

The alternativ is a bit more complex. What you could do is to have your menu loaded in a separate activity which you style as a dialog window (you know with a faded half-transparent background). This can be easily done by applying the Theme.Dialog style to your activity in the manifest.xml file:

<activity android:name=".activities.TagPopupActivity"
            android:label="Tagging" android:theme="@android:style/Theme.Dialog">
                ...
</activity>

Alternatively you can also directly create a Dialog window as described here. You then get the context (i.e. a list click) by implementing the appropriate click listener in your main list activity and then when the user clicks on the item, you retrieve its id and package it into a bundle that you forward to your "menu"-activity styled as a popup dialog.

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