This is a very simple RatingBar library, which you can just simply extend BaseRatingBar to implement your own animation RatingBar in a few steps!

Current we already have three RatingBars :

• BaseRatingBar
  A RatingBar without any animation.
• ScaleRatingBar
  A RatingBar with progressive and scale animation.
• RotationRatingBar (contributed by nappannda)
  A RatingBar with progressive and rotate animation.

Icon made by Freepik from www.flaticon.com

• Support use touch to change rating
• Custom drawable's padding
• Custom your empty and filled drawable
• Click again to clear rating
• Rotate animation
• Scale animation

from JitPack:

allprojects {
    repositories {
        ...
        maven { url 'https://jitpack.io' }
    }
}

dependencies {
    compile 'com.github.ome450901:SimpleRatingBar:1.1'
}

<com.willy.ratingbar.ScaleRatingBar
        xmlns:rb="http://schemas.android.com/apk/res-auto"
        android:id="@+id/simpleRatingBar5"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        rb:numStars="3"
        rb:rating="2"
        rb:starPadding="15"
        rb:drawableEmpty="@drawable/start_empty"
        rb:drawableFilled="@drawable/star_filled">
</com.willy.ratingbar.ScaleRatingBar>

ScaleRatingBar ratingBar = new ScaleRatingBar(this);
ratingBar.setNumStars(5);
ratingBar.setRating(3);
ratingBar.setStarPadding(10);
ratingBar.setEmptyDrawableRes(R.drawable.start_empty);
ratingBar.setFilledDrawableRes(R.drawable.start_empty);
ratingBar.setOnRatingChangeListener(new BaseRatingBar.OnRatingChangeListener() {
    @Override
        public void onRatingChange(BaseRatingBar ratingBar, int rating) {
            Log.e(TAG, "onRatingChange: " + rating);
    }
});

• Create a class that extend BaseRatingBar
• Override the emptyRatingBar and fillRatingBar this two method, and then you can start implement your own animaion!

You can follow ScaleRatingBar to implement your own class.

• Support float rating
• Implement some other animations
• Find a better way to implement animation

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