Android中点击按钮获取星级评分条的评分

矫情吗；* 2023-10-08 11:39 11阅读 0赞

## 场景 ##

### 效果 ###

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70][]

注：

博客：  
[https://blog.csdn.net/badao\_liumang\_qizhi][https_blog.csdn.net_badao_liumang_qizhi]  
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## 实现 ##

将布局改为LinearLayout，并通过android:orientation="vertical">设置为垂直布局，然后添加一个RatingBar,并通过

android:rating="5"

设置其星数为5

然后再添加一个Button,分别给他们添加Id。

<?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="发表评价"
           />
    
    </LinearLayout>

然后来到Activity,通过Id获取RatingBar和Button，在button的点击事件中，获取星级数，并提示。

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,"你的评分为："+rating+"分",Toast.LENGTH_SHORT).show();;
                }
            });
        }
    }

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70]: https://img-blog.csdnimg.cn/20200106215411611.jpg?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk=,size_16,color_FFFFFF,t_70
[https_blog.csdn.net_badao_liumang_qizhi]: https://blog.csdn.net/badao_liumang_qizhi