Android RatingBar change star colors [closed]

Question

How can i change the star colors and how can i change the size of the stars ?

Answer 1

So I have been struggling with this issue for two hours and I have come up with a working solution for all API versions, where half stars ratings are also shown.

private void setRatingStarColor(Drawable drawable, @ColorInt int color)
{
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP)
    {
        DrawableCompat.setTint(drawable, color);
    }
    else
    {
        drawable.setColorFilter(color, PorterDuff.Mode.SRC_IN);
    }
}

You call the method with this order of drawables:

    LayerDrawable stars = (LayerDrawable) ratingBar.getProgressDrawable();
    // Filled stars
    setRatingStarColor(stars.getDrawable(2), ContextCompat.getColor(getContext(), R.color.foreground));
    // Half filled stars
    setRatingStarColor(stars.getDrawable(1), ContextCompat.getColor(getContext(), R.color.background));
    // Empty stars
    setRatingStarColor(stars.getDrawable(0), ContextCompat.getColor(getContext(), R.color.background));

NOTE: Also you must specify attributes "max" and "numStars" in XML, otherwise half stars aren't shown.

Answer 2

A bit late answer but i hope it will help some folks.

<RatingBar
         android:id="@+id/rating"
         style="@style/Base.Widget.AppCompat.RatingBar.Small"
         android:theme="@style/WhiteRatingStar"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_below="@+id/profil_name"
         android:layout_centerHorizontal="true"
         android:layout_marginLeft="@dimen/dimen_4"
         android:rating="3" />

And here is what the WhiteRatingStar looks like

<style name="WhiteRatingStar" parent="Base.Widget.AppCompat.RatingBar.Small">
     <item name="colorAccent">@android:color/white</item>
</style>

With this the stars will be coloured in white for example.

Answer 3

Works for Android below and above version 21

After some research I've come up with this method to set the background tint, the gap tint (ex: half star) and the star tint color.

LayerDrawable layers = (LayerDrawable) ratingBar.getProgressDrawable();
DrawableCompat.setTint(layers.getDrawable(0), 0x33000000); // The background tint
DrawableCompat.setTint(layers.getDrawable(1), 0x00000000); // The gap tint (Transparent in this case so the gap doesnt seem darker than the background)
DrawableCompat.setTint(layers.getDrawable(2), 0xffFED80A); // The star tint

Answer 4

The simpliest way:

android:progressTint="@color/color"

Answer 5

Try this, if you only want to change color:

RatingBar ratingBar = (RatingBar) findViewById(R.id.ratingBar);
LayerDrawable stars = (LayerDrawable) ratingBar.getProgressDrawable();
stars.getDrawable(2).setColorFilter(Color.YELLOW, PorterDuff.Mode.SRC_ATOP);

Answer 6

Using the answers above, I created a quick static method that can easily be re-used. It only aims at tinting the progress color for the activated stars. The stars that are not activated remain grey.

    public static RatingBar tintRatingBar (RatingBar ratingBar, int progressColor)if (ratingBar.getProgressDrawable() instanceof LayerDrawable) {
        LayerDrawable progressDrawable = (LayerDrawable) ratingBar.getProgressDrawable();
        Drawable drawable = progressDrawable.getDrawable(2);
        Drawable compat = DrawableCompat.wrap(drawable);
        DrawableCompat.setTint(compat, progressColor);
        Drawable[] drawables = new Drawable[3];
        drawables[2] = compat;

        drawables[0] = progressDrawable.getDrawable(0);
        drawables[1] = progressDrawable.getDrawable(1);

        LayerDrawable layerDrawable = new LayerDrawable(drawables);

        ratingBar.setProgressDrawable(layerDrawable);

        return ratingBar;
    }
    else {
        Drawable progressDrawable =  ratingBar.getProgressDrawable();
        Drawable compat = DrawableCompat.wrap(progressDrawable);
        DrawableCompat.setTint(compat, progressColor);
        ratingBar.setProgressDrawable(compat);
        return ratingBar;
    }
}

Just pass your rating bar and a Color using getResources().getColor(R.color.my_rating_color)

As you can see, I use DrawableCompat so it's backward compatible.

EDIT : This method does not work on API21 (go figure why). You end up with a NullPointerException when calling setProgressBar. I ended up disabling the whole method on API >= 21.

For API >= 21, I use SupperPuccio solution.