android - 标题栏的默认高度和标题栏中的默认文本大小是多少？

Question

有谁知道 android 中 TitleBar 和 TitleBarText 的默认大小是多少？

Answer 1

您可以在此处找到默认高度

http://grepcode.com/file/repository.grepcode.com/java/ext/com.google.android/android/4.0.3_r1/frameworks/base/core/res/res/values/dimens.xml

下面是4.0.3

<dimen name="action_bar_default_height">48dip</dimen>
<dimen name="action_bar_title_text_size">18dp</dimen>

查看各自res/values文件夹下的dimens.xml

Gopal Rao 的评论

http://grepcode.com/file/repository.grepcode.com/java/ext/com.google.android/android/4.0.3_r1/frameworks/base/core/res/res/values/styles.xml?av=f

<style name="TextAppearance">
        <item name="android:textColor">?textColorPrimary</item>
        <item name="android:textColorHighlight">?textColorHighlight</item>
        <item name="android:textColorHint">?textColorHint</item>
        <item name="android:textColorLink">?textColorLink</item>
        <item name="android:textSize">16sp</item> // its is in sp not dp 
        <item name="android:textStyle">normal</item>
    </style>

http://developer.android.com/guide/practices/screens_support.html

如果您查看主题最佳实践。

Quoting "you should prefer the sp (scale-independent pixel) to define text sizes. The sp scale factor depends on a user setting and the system scales the size the same as it does for dp".