Android-如何设置所有屏幕的背景颜色？

保持字体和颜色样式的最佳实践是什么。我创建了一个 Colors.xml 文件，我用它来改变单独元素(如按钮)的颜色，但我不确定 Android 希望开发人员如何组织他们的样式。

例如，我希望所有屏幕具有相同的背景颜色。我该怎么做？是否需要为每个 Activity 布局 xml 指定它？或者其他地方？我该怎么做？

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最佳答案

A quick and easy way to make sure every activity has the same background color, is to create a theme for your activities to use. That theme would specify the android:windowBackground.

First define the color in values/colors.xml

<resources>
<color name="background">#FF0000 </color>
</resources>

Create a themes.xml file in res/values that references that color:

<resources>
<style name="MyTheme" parent="@android:style/Theme.Light">
<item name="android:windowBackground">@color/background</item>
</style>
</resources>

... and then in your AndroidManifest.xml specify this as the theme for your activities to use.

 <activity
android:name=".MyActivity"
android:theme="@style/MyTheme" />
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You can also set the background at the application level in AndroidManifest.xml

<application
...
android:theme="@style/MyTheme">

(Note: I cannot this as a comment of the accepted answer as my reputation is too low).

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Update your android studio to 1.4 it has inbuilt theme editor. as you can see in below image

enter image description here


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