显示活动作为片覆盖窗口 [英] Display Activity as overlay window on tablets

问题描述

你怎么了present的活动作为片重叠的窗口？这方面的一个例子是新的Google+应用是在这里看到：

How do you present an Activity as an overlay window on tablets? An example of this is the new Google+ app as seen here:

重要的是我要的动作条是窗口的一部分，并为活动的下方变暗看到的截图。

Importantly I want the ActionBar to be part of the window and for the Activity beneath to be dimmed as seen in the screenshot.

感谢

推荐答案

您可以只使用对话的主题。要做到这一点，只是写在清单：

You can just use dialog theme. To do this, just write in Manifest:

 android:theme="@android:style/Theme.Dialog"

或

android:theme="@android:style/Theme.Holo.Dialog"

或只是通过创建自己的主题，在styles.xml：

or just by creating your own theme in styles.xml:

<style name="MyDialogTheme" parent="Theme.Holo.Dialog">
...
</style>

您可以通过在价值观XLARGE或值，大的文件夹创建styles.xml设置这样的主题XLARGE或大屏幕。

You can set such theme for xlarge or large screen by creating styles.xml in values-xlarge or values-large folders.

如果您希望只设置这个主题的平板电脑，那么你就可以动态地通过检查屏幕大小像这样更改主题：

If you want to set this theme only for tablets, then you can change theme dynamically by checking the screen size like this:

if (Configuration.SCREENLAYOUT_SIZE_XLARGE)
{
//setTheme(yourDialogTheme);
}

如果你想用行动吧对话框，请检查这个答案。您可以通过创建自定义对话框做到这一点。

Please check this answer if you want dialog with action bar. You can do this by creating your custom dialog.

对话为主题的活动与操作栏

自定义对话框

编辑： 从谷歌组帖子一个答案。尝试这个 在你的XML与样式：

An answer from google group post. Try this in your xml with styles:

<style name="PopupTheme" parent="android:Theme.Holo.Light.Dialog">
        <item name="android:windowIsFloating">false</item>
        <item name="android:windowContentOverlay">@null</item>
        <item name="android:windowSoftInputMode">stateAlwaysHidden</item>
        <item name="android:windowActionModeOverlay">true</item>
        <item name="android:windowIsTranslucent">true</item>
    </style>

在Java的code

In Java code

public static void showAsPopup(Activity activity) {
        //To show activity as dialog and dim the background, you need to declare android:theme="@style/PopupTheme" on for the chosen activity on the manifest
        activity.requestWindowFeature(Window.FEATURE_ACTION_BAR);
        activity.getWindow().setFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND,
                WindowManager.LayoutParams.FLAG_DIM_BEHIND);
        LayoutParams params = activity.getWindow().getAttributes(); 
        params.height = LayoutParams.FILL_PARENT;
        params.width = 850; //fixed width
        params.alpha = 1.0f;
        params.dimAmount = 0.5f;
        activity.getWindow().setAttributes((android.view.WindowManager.LayoutParams) params); 
    }

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