How to set the custom size of the stars in RatingBar

//you can also try

<style name="myRatingBar" parent="@android:style/Widget.RatingBar.Indicator">

<style name="myRatingBar" parent="@android:style/Widget.RatingBar.Small">

Ref: /android-sdk/platforms/android-10/data/res/values/styles.xml

<style name="Widget.RatingBar">
        <item name="android:indeterminateOnly">false</item>
        <item name="android:progressDrawable">@android:drawable/ratingbar_full</item>
        <item name="android:indeterminateDrawable">@android:drawable/ratingbar_full</item>
        <item name="android:minHeight">57dip</item>
        <item name="android:maxHeight">57dip</item>
        <item name="android:thumb">@null</item>
    </style>

    <style name="Widget.RatingBar.Indicator">
        <item name="android:indeterminateOnly">false</item>
        <item name="android:progressDrawable">@android:drawable/ratingbar</item>
        <item name="android:indeterminateDrawable">@android:drawable/ratingbar</item>
        <item name="android:minHeight">38dip</item>
        <item name="android:maxHeight">38dip</item>
        <item name="android:thumb">@null</item>
        <item name="android:isIndicator">true</item>
    </style>

    <style name="Widget.RatingBar.Small">
        <item name="android:indeterminateOnly">false</item>
        <item name="android:progressDrawable">@android:drawable/ratingbar_small</item>
        <item name="android:indeterminateDrawable">@android:drawable/ratingbar_small</item>
        <item name="android:minHeight">14dip</item>
        <item name="android:maxHeight">14dip</item>
        <item name="android:thumb">@null</item>
        <item name="android:isIndicator">true</item>
    </style>

You solved your problem. But this may help others.

I have same issue.All solutions I got does not work for multiple screen sizes. After spending hours I ended with following solution.

Just get drawable height which you want to use at runtime and set it to RatingBar. Here is sample code.

Drawable starDrawable = getResources().getDrawable(R.drawable.YOUR_IMAGE);
int height = starDrawable.getMinimumHeight();
LayoutParams params = (LayoutParams) ratingBar.getLayoutParams();
params.height = height;
ratingBar.setLayoutParams(params);

Android won't scale a rating bar icons. When you decrease the minHeight and maxHeight android will always crop the icons as shown on the picture. The workaround for it and seems to be the only one solution is to provide your own icons for stars with the desired dimensions and set the minHeight and maxHeight to the size of the icons.

Another approach would be scaling the widget:

android:scaleX="0.5"
android:scaleY="0.5"