scene

Effect

Note:

Blog:
https://blog.csdn.net/badao_liumang_qizhi
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Realization

Change the layout to LinearLayout and set it to vertical layout through Android: orientation = "vertical" > then add a RatingBar, and use the

android:rating="5"

Set the number of stars to 5

Then add a Button to add Id to them.

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".RatingBarActivity">

    <RatingBar
        android:id="@+id/ratingBar"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:rating="5"
       />

    <Button
        android:id="@+id/btn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:background="#FF5000"
        android:text="Publication evaluation"
       />

</LinearLayout>

Then go to Activity, get RatingBar and button through Id, get star number in button click event, and prompt.

packagecom.badao.relativelayouttest;

importandroidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.RatingBar;
importandroid.widget.Toast;

public class RatingBarActivity extends AppCompatActivity {
    private RatingBarratingBar;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_rating_bar);
        ratingBar = (RatingBar) findViewById(R.id.ratingBar);
        Button button = (Button) findViewById(R.id.btn);
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                float rating = ratingBar.getRating();
                Toast.makeText(RatingBarActivity.this,"Your score is:"+rating+"branch",Toast.LENGTH_SHORT).show();;
            }
        });
    }
}