I had facing same problem.
In my case blank_star.png
height is 17dp so i put android:layout_height="17dp"
on RatingBar
and my problem is resolve.Try below code:-
<RatingBar
android:id="@+id/rating"
style="@style/rating_bar"
android:layout_width="wrap_content"
android:layout_height="17dp"
android:layout_marginRight="5dp"
android:isIndicator="true"
android:numStars="5"
android:stepSize="1.0" />
style/rating_bar.xml
<style name="rating_bar" parent="@android:style/Widget.RatingBar">
<item name="android:progressDrawable">@drawable/rating_bar_full</item>
<item name="android:minHeight">18dip</item>
<item name="android:maxHeight">18dip</item>
</style>
drawable/rating_bar_full
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<item
android:id="@+android:id/background"
android:drawable="@drawable/ratingbar_full_empty"/>
<item
android:id="@+android:id/secondaryProgress"
android:drawable="@drawable/ratingbar_full_empty"/>
<item
android:id="@+android:id/progress"
android:drawable="@drawable/ratingbar_full_filled"/>
</layer-list>
drawable/ratingbar_full_empty
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="@drawable/blank_star" android:state_pressed="true" android:state_window_focused="true"/>
<item android:drawable="@drawable/blank_star" android:state_focused="true" android:state_window_focused="true"/>
<item android:drawable="@drawable/blank_star" android:state_selected="true" android:state_window_focused="true"/>
<item android:drawable="@drawable/blank_star"/>
</selector>
drawable/ratingbar_full_filled.xml
<item android:drawable="@drawable/filled_star" android:state_pressed="true" android:state_window_focused="true"/>
<item android:drawable="@drawable/filled_star" android:state_focused="true" android:state_window_focused="true"/>
<item android:drawable="@drawable/filled_star" android:state_selected="true" android:state_window_focused="true"/>
<item android:drawable="@drawable/filled_star"/>