如何自定义操作栏字幕字体？ [英] How to customize the Action Bar subtitle Font?

问题描述

我已经创建了一个动作条（ android.support.v7.widget.Toolbar ），如下图所示。

I have created an ActionBar (android.support.v7.widget.Toolbar) as below.

<android.support.v7.widget.Toolbar
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/myToolbar"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:minHeight="?attr/actionBarSize">
</android.support.v7.widget.Toolbar>

在我的动作条，标题以外，我也有字幕。不过，我想自定义的字幕。在自定义，我指的是字体大小，颜色和字体。

In my ActionBar, other than the title, I also have Subtitle. However I would like to customize the Subtitle. In customize, I mean the font size, color and typeface.

我已经通过各种主题和风格，仍然未果。

I've tried through various Theme and Style, and still unsuccessful.

如果有，如何可以做一个简单的完整的例子，这将真正帮助。谢谢！

If there's a simple complete example of how that could be done, that would really help. Thanks!

推荐答案

如果你还没有在你的布局文件这个命名空间属性添加：

If you don't already have this namespace attribute in your layout file add it:

的xmlns：程序=htt​​p://schemas.android.com/apk/res-auto

xmlns:app="http://schemas.android.com/apk/res-auto"

更新您的工具栏在布局文件属性是这样的：

Update your Toolbar attributes in your layout file like this:

<android.support.v7.widget.Toolbar
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/myToolbar"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    app:titleTextAppearance="@style/ToolbarTitleAppearance"
    app:subtitleTextAppearance="@style/ToolbarSubtitleAppearance"
    android:minHeight="?attr/actionBarSize">
</android.support.v7.widget.Toolbar>

样式添加这样的：

Add styles like these:

<style name="ToolbarTitleAppearance" parent="@style/TextAppearance.Widget.AppCompat.Toolbar.Title">
    <item name="android:textSize">20dp</item>
    <!-- include other attributes you want to change: textColor, textStyle, etc -->
</style>

<style name="ToolbarSubtitleAppearance" parent="@style/TextAppearance.Widget.AppCompat.Toolbar.Subtitle">
    <item name="android:textSize">14dp</item>
</style>

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