Android开发手册RatingBar星级评分控件实例

<RatingBar
    android:layout_width="wrap_content"
    android:layout_height="wrap_content" />
<RatingBar
    style="?android:attr/ratingBarStyleSmall"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:isIndicator="false"
    android:numStars="5"
    android:rating="4"
    android:stepSize="1" />
<RatingBar
    style="?android:attr/ratingBarStyleIndicator"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:isIndicator="false"
    android:numStars="5"
    android:rating="3"
    android:stepSize="1" />
<androidx.appcompat.widget.AppCompatRatingBar
    android:layout_width="wrap_content"
    android:layout_height="wrap_content" />

RatingBar ratingBar = findViewById(R.id.rating);
ratingBar.setOnRatingBarChangeListener(new RatingBar.OnRatingBarChangeListener() {
    @Override
    public void onRatinGChanged(RatingBar ratingBar, float rating, boolean fromUser) {
        Log.e("TAG", "onRatingChanged: 当前点击的评分：" + rating);
    }
});

<RatingBar
    android:layout_width="wrap_content"
    android:progressDrawable="@drawable/ratingbar_bg"
    android:layout_height="wrap_content" />

<RatingBar
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    style="@style/RatingBar_CustomDrawable" />

<style name="RatingBar_CustomDrawable" parent="@android:style/Widget.Holo.RatingBar.Indicator">
    <item name="android:progressDrawable">@drawable/ratingbar_bg</item>
    <item name="android:minHeight">50dp</item>
    <item name="android:maxHeight">50dp</item>
</style>