Android的 - 活动不填充父屏幕 [英] Android - Activity that does not fill the parent screen

问题描述

为什么不创建，看起来像一个弹出窗口，而不是一个活动，完全填充屏幕的活动你知道吗？

Any idea why this doesn't create an activity that looks like a popup instead of an activity that completely fills the screen?

 <?xml version="1.0" encoding="utf-8"?>
     <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
              android:orientation="vertical"
              android:layout_width="300dip"
              android:layout_height="120dip" 
              android:layout_marginTop="100dip">

          <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
			              android:orientation="vertical"
			              android:layout_height="120dip" 
                          android:layout_width="300dip">

	         <TextView android:layout_width="fill_parent" 
	    	           android:layout_height="wrap_content" 
	    	           android:text="@string/hello" />

          </RelativeLayout>
     </LinearLayout>

我认为我只需要设置布局的高度和布局宽度为除FILL_PARENT等，但它仍然显示为黑色的屏幕，完全充满屏幕。

I assumed that I only needed to set the layout height and layout width to something other than "fill_parent", but it still shows up as a black screen that completely fills the screen.

最后，我只是想创建一个弹出，但我不希望使用一个AlertDialog。这可能吗？

Ultimately, I simply want to create a popup, but I do not want to use an AlertDialog. Is this possible?

推荐答案

您必须将你的活动窗口进行浮动。你可以做到这一点无论是给你的活性的Andr​​oid（安卓风格/ Theme.Dialog ）中定义的对话风格，也可以定义自己的风格，像这样的：

You must set your Activity's window to be floating. You can do this either by giving your activity the Dialog style defined by Android (android:style/Theme.Dialog), or define your own style, like this:

<style name="MyFloatingWindow">
    <item name="android:windowBackground">@android:color/transparent</item>
    <item name="android:background">@android:color/transparent</item>
    <item name="android:windowIsFloating">true</item>
    <item name="android:windowNoTitle">true</item>
</style>

然后设置样式您在应用程序的清单活动。

Then set the style on your activity in the application's Manifest.

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