Android 协调者布局title 字体大小颜色修改,设置布局为最上层

　// put the control to the view top
playView.bringToFront();

遥记得,在google 提供的　切换tab中　需要在dimens 中定义字体大小方才生效,而在协调者布局中只需要在style 中定义两个style 即可

<style name="expendText" parent="TextAppearance.AppCompat.Title">
<!-- Customize your theme here. -->
<item name="android:textSize">18sp</item>
</style>

<style name="collapse" parent="TextAppearance.AppCompat.Title">
<!-- Customize your theme here. -->
<item name="android:textSize">13sp</item>
</style>

<android.support.design.widget.CollapsingToolbarLayout
android:id="@+id/collapsingToolbarLayout"
android:layout_width="match_parent"
android:layout_height="200dp"
app:collapsedTitleGravity="right"
app:expandedTitleGravity="left|bottom"
app:title="youtTitle"
app:expandedTitleTextAppearance="@style/expendText"
app:collapsedTitleTextAppearance="@style/collapse"