How to make RatingBar to show five stars

user_435267 0
Viewed 122802

I am following the standard example of how to add a RatingBar. To control the number of stars I tried to use android:numStars="5". The problem is that the number of stars doesn't seem to do anything at all. In portrait-layout I get 6 stars and when I flip the phone I get about 10 stars. I tried to set the number of stars in my Activity (myBar.setNumStars(5)) that loads the xml but there was no success with that option either.

So my question is how do I define my layout so that it will only show five stars? Set numStars doesn't seem to work.

Thanks in advance, Roland

layout android xml
18 Answers

You should just use numStars="5" in your XML, and set android:layout_width="wrap_content".
Then, you can play around with styles and other stuff, but the "wrap_content" in layout_width is what does the trick.

user_86452240

If you are wrapping the RatingBar inside a ConstraintLayout with match_constraint for its width, the editor preview is going to show a number of stars proportional to its actual width, no matter what if you set android:numStars property. Use wrap_content to get the correct preview:

<RatingBar android:id="@+id/myRatingBar"
           android:layout_width="wrap_content"
           android:layout_height="wrap_content"
           android:layout_marginStart="48dp"
           android:layout_marginEnd="48dp"
           android:numStars="5"
           app:layout_constraintEnd_toEndOf="parent"
           app:layout_constraintStart_toStartOf="parent"
           app:layout_constraintTop_toBottomOf="parent" />
user_62751740

The actual thing over here is to use wrap_content instead of match_parent. If you will use match_parent the layout will be filled with the stars even if it is more than the numStars variable.

user_124104550
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