如何使自定义windowBackground主题样式在所有Android设备上都能工作? [英] How to make custom windowBackground theme style work on all Android devices?

问题描述

我正在尝试使我的所有活动都具有自定义主题样式，该样式应如下所示:

I am trying to get all of my activities to have a custom theme style that should look like this:

此主题可在许多设备上使用，包括Nexus 7，三星Galaxy S4和三星Droid Charge(运行姜饼).但是，在其他设备(例如HP Slate 7和Motorola Droid RAZR)上，它最终看起来像这样:

This theme works on many devices, including the Nexus 7, the Samsung Galaxy S4, and the Samsung Droid Charge (running Gingerbread). However, on other devices, such as HP Slate 7 and Motorola Droid RAZR, it ends up looking like this:

我在AndroidManifest.xml的application标记中包含以下内容:

I have the following in my AndroidManifest.xml's application tag:

android:theme="@style/AppTheme"

主题在res/values/styles.xml中如下:

<style name="AppBaseTheme" parent="@android:style/Theme.Light.NoTitleBar">

</style>

<style name="AppTheme" parent="@style/AppBaseTheme">
    <item name="android:windowBackground">@color/background</item>
</style>

我还在res/values-v11下添加了styles.xml.这是适用的样式:

I have also added a styles.xml under res/values-v11. Here is the applicable style from there:

<style name="AppBaseTheme" parent="@android:style/Theme.Holo.Light.NoActionBar">
</style>

最后，它出现在res/values-v14下的styles.xml中:

Finally, this appears in styles.xml under res/values-v14:

<style name="AppBaseTheme" parent="@android:style/Theme.DeviceDefault.Light">
</style>

我尝试为每个活动定义主题，并在onCreate()中手动使用setTheme()功能，但是没有任何效果.我也尝试过在每个Activity中手动设置背景，但这也不起作用.我该怎么做才能解决我的问题?

I have tried to define the theme for each activity and to manually use the setTheme() function in onCreate(), but nothing has worked. I have also tried to manually set a background in every Activity, and this did not work either. What can I do to fix my problem?

有趣的是在样式中设置android:background使其起作用，但随后不应该具有背景的元素也将获得该背景颜色.

What's interesting is setting android:background in the styles makes it work, but then elements that should not have backgrounds receive that background color as well.

推荐答案

解决问题的关键是将主题中的android:windowBackground更改为以下内容:

The key to solving the problem was changing android:windowBackground in the theme to the following:

<item name="android:windowBackground">@drawable/default_background</item>

请注意，我不再使用@color，而只是使用@drawable，其xml如下:

Notice that I am no longer using @color, but simply a @drawable, the xml for which is below:

<?xml version="1.0" encoding="utf-8"?>

<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle">
    <solid android:color="@color/background"/>
</shape>

似乎某些设备不支持接受该元素的颜色.

It seems that some devices do not support accepting a color for this element.

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