如何设置带有不同大小文本的android主题？

Question

I have been browsing around, in an attempt to understand android themes. I understand how to create and apply styles, unfortunately when it comes to themes, my brain just doesn't quite get it. Maybe it's because I come from a web-developer background, so my brain hasn't quite "re-wired" itself for android yet.

I'd like to do as little redundant work as possible, so i decided that my theme would have different text-sizes based on whether it's a header, a text-body or a small text(designer wants text to be bigger on some screen sizes). This way I can easily create different width-based layouts with different sizes of text depending on whether we are on a tablet or phone(instead of having to edit every single layout-file and TextView).

Can anyone help me understand how I should do this? The android developer's guide just confuses me.

Answer 1

您可以在styles.xml中设置textAppearance项，如下所示；

<item name="android:textAppearance">?android:attr/textAppearanceMedium</item>

Answer 2

So, you can set up different styles in Android in your styles.xml file, if you wanted a different style for a title and header you would create two separate styles like so;

<style name="Title">
    <item name="android:textAppearance">?android:attr/textAppearanceLarge</item>
</style>

<style name="Header">
    <item name="android:textAppearance">?android:attr/textAppearanceMedium</item>
</style>

Then in your layout file you can use these styles like so;

<TextView
            android:id="@+id/title"
            style="@style/Title" />

Or you can set a global style to all TextViews like so;

<style name="MyTheme" parent="android:Theme">
<item name="android:textViewStyle">@style/Title</item> </style>