IssueTracker

Library used (support-v4, appcompat-v7, ...): Design Support Library
Version used: 22.2.0

With the CollapsingToolbarLayout on Android 4.1  - it appears that settings expandedTitleTextAppearance and collapsedTitleTextAppearance do not work properly unless the styles specifically extend fromTextAppearance. So if you set them using this style:

<style name="GreenText">
        <item name="android:textColor">#00FF00</item>
 </style>

the text will not appear at all (and can cause the crash found in this ticket): https://code.google.com/p/android/issues/detail?id=178657

However if the style is changed to this:

<style name="GreenText" parent="@android:style/TextAppearance">
        <item name="android:textColor">#00FF00</item>
 </style>

everything works fine.

Since a standard TextView properly displays the text when the TextAppearance is set using the first format:

 <TextView
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:text="Info"
                        android:textAppearance="@style/GreenText" />

 I assume this is a bug in the CollapsingToolbarLayout.

I also logged another bug under http://code.google.com/p/android/issues/detail?id=178657 but this seems like a separate but related issue.