活动的对话框：放置在左上角 [英] Activity as dialog: Place in top left corner

问题描述

我想地方，使用以下code在OnCreate（）中使用Holo.Dialog主题我的应用程序的左上角一个Android活动：

I'm trying to place an Android activity that uses the Holo.Dialog theme in the top left corner of my application by using the following code in OnCreate():

var layoutParams = this.Window.Attributes;
layoutParams.Gravity = GravityFlags.Top | GravityFlags.Left;

（这是单声道Android设备）

(This is Mono for Android)

这样的工作，但是有实际的角落里，我的对话框，您可以在下面的截图中看到的开始之间微小的差距：

It kind of works, however there is a tiny gap between the actual corner and the beginning of my dialog, which you can see in the following screen shot:

https://www.dropbox.com/ S / cyy9lglq5642nz1 /设备2013-05-26-223855.png

注意菜单框和屏幕的实际边缘之间的间隙。
我能做些什么完全地消除这个差距？

Notice the gap between the menu box and the actual edge of the screen. What can I do to remove that gap completly?

推荐答案

原来，问题很简单：Theme.Holo.Dialog定义的背景下，增加了对话围绕一个透明边框。这会导致角和对话之间的间距

Turns out the problem is rather simple: Theme.Holo.Dialog defines a background that adds a transparent border around the dialog. This causes the spacing between the corner and the dialog.

创建自定义样式修复​​它：

Creating a custom style fixes it:

<style name="MyCustomDialog" parent="android:Theme.Holo.Dialog">
    <item name="android:windowBackground">@null</item>
</style>

这将覆盖的背景和删除间距。

This overwrites the background and removes the spacing.

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