如何使用自定义主题更改默认文本颜色? [英] How to change default text color using custom theme?

问题描述

我正在尝试的主题应该很容易，但我不知道如何:我希望我的应用程序中的所有文本默认为白色.我在 theme.xml 中创建了一个自定义主题:

What I'm trying should be quite easy with themes, but I can't find out how to: I want all text to be white by default in my app. I created a custom theme in theme.xml:

<style name="Theme" parent="@android:Theme">
</style>

<style name="TextAppearance.Theme" parent="@android:TextAppearance.Theme">
    <item name="android:textColor">#ffffffff</item>
</style>

并为整个应用程序设置:

and set it for the whole application:

<application
    android:icon="@drawable/icon"
    android:label="@string/app_name"
    android:theme="@style/Theme">

但标签仍然是黑色的.缺少什么?

But labels are still black. What's missing?

PS:我如何为不同的文本大小另外定义样式，以应用于每个小部件?这样的说法正确吗?

PS: How can I additionally define styles for different text sizes, to be applied per widget? Is something like that correct?

<style name="Theme.smallText">
    <item name="android:textSize">12dp</item>
</style>

更新

我查看了 Android SDK 中的 themes.xml，它展示了如何为主题设置文本样式:

I took a look at themes.xml in Android SDK, it shows how to set the text style for a theme:

<item name="textAppearance">@android:style/TextAppearance</item>

就我而言，它应该适用于这个定义:

In my case it should work with this definition:

<style name="Theme" parent="@android:Theme">
    <item name="android:textAppearance">@style/MyText</item>
</style>

<style name="MyText" parent="@android:style/TextAppearance">
    <item name="android:textColor">#ffffffff</item>
</style>

但是，它仍然无法正常工作.

However, it is still not working.

这是关于同一问题的另一篇博文.>

Here's another post about this same issue.

推荐答案

在您的 Manifest 中，您需要引用具有文本颜色 的 style 的名称>item 在里面.现在你只是引用一个空的style.所以在你的 theme.xml 中只做这个 style:

In your Manifest you need to reference the name of the style that has the text color item inside it. Right now you are just referencing an empty style. So in your theme.xml do only this style:

<style name="Theme" parent="@android:style/TextAppearance">
    <item name="android:textColor">#ffffffff</item>
</style>

并让您在 Manifest 中引用相同的 (android:theme="@style/Theme")

And keep you reference to in the Manifest the same (android:theme="@style/Theme")

编辑:

theme.xml:

<style name="MyTheme" parent="@android:style/TextAppearance">
    <item name="android:textColor">#ffffffff</item>
    <item name="android:textSize">12dp</item>
</style>

清单:

<application
    android:icon="@drawable/icon"
    android:label="@string/app_name"
    android:theme="@style/MyTheme">

注意我将文本颜色和大小组合成相同的style.此外，我将主题的名称更改为 MyTheme，现在在 Manifest 中引用它.我将 parent 值更改为 @android:style/TextAppearance.

Notice I combine the text color and size into the same style. Also, I changed the name of the theme to MyTheme and am now referencing that in the Manifest. And I changed to @android:style/TextAppearance for the parent value.

这篇关于如何使用自定义主题更改默认文本颜色?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！