According to Android Developer Design Style for Typography, there are 4
Good question! After researching a little bit, I didn't find any results for "TextAppearance.Micro".
On the other hand, I found the official Android source for style resource related to
<style name="TextAppearance.Small"> <item name="android:textSize">14sp</item> <item name="android:textColor">?textColorSecondary</item> </style> <style name="TextAppearance.Medium"> <item name="android:textSize">18sp</item> </style> <style name="TextAppearance.Large"> <item name="android:textSize">22sp</item> </style>
As you can see, all of them only affect the text size (except
TextAppearance.Small, which also affect the text color). So, I can safely say that the site displays the text sizes as a guideline only. On the other hand, you can always add a custom style to support
TextAppearance.Micro! Just insert this inside
<style name="TextAppearance.Micro" parent="@android:style/TextAppearance.Small"> <item name="android:textSize">12sp</item> </style>
and use it like:
<TextView ... android:textAppearance="@style/TextAppearance.Micro" />
On a bit related note, when I searched "textAppearanceMicro", I found 3 projects on GitHub. All of them adding some custom attributes, which one of them is
textAppearanceMicro. Also, all of them are using
ActionBarSherlock. I don't know whether there is a connection between
ActionBarSherlock, but I didn't find that attribute was used anywhere in the code.