7 android 星级滑块-优快云博客

本文链接：https://blog.youkuaiyun.com/jamesliulyc/article/details/6319018

本文介绍了一个简单的Android应用示例，展示了如何使用RatingBar和ProgressBar组件，并通过用户对RatingBar的评分来动态更新ProgressBar的进度。此应用可用于学习Android中UI组件的基本交互原理。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

目录结构

1、res/layout/rating_bar_layout.xml

<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="wrap_content"> <ProgressBar android:id="@+id/progressBar" android:layout_width="fill_parent" android:layout_height="wrap_content" android:max="100" android:progress="10" style="@android:style/Widget.ProgressBar.Horizontal" mce_style="@android:style/Widget.ProgressBar.Horizontal" /> <RatingBar android:id="@+id/ratingBar" android:layout_width="wrap_content" android:layout_height="wrap_content" android:max="5" android:rating="0.5" /> </LinearLayout>

2、src/com/taofu5/RatingBarActivity.java

package com.taofu5; import android.app.Activity; import android.os.Bundle; import android.widget.ProgressBar; import android.widget.RatingBar; public class RatingBarActivity extends Activity { public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); this.setContentView(R.layout.rating_bar_layout); RatingBar ratingBar = (RatingBar) findViewById(R.id.ratingBar); ratingBar.setOnRatingBarChangeListener(new RatingBar.OnRatingBarChangeListener() { @Override public void onRatingChanged(RatingBar ratingBar, float progress, boolean fromUser) { ProgressBar progressBar = (ProgressBar) findViewById(R.id.progressBar); progressBar.setProgress((int)(ratingBar.getRating()*100/5)); } }); } }

3、AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.taofu5" android:versionCode="1" android:versionName="1.0"> <application android:icon="@drawable/icon" android:label="@string/app_name"> <activity android:name=".RatingBarActivity" android:label="@string/app_name"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> <uses-sdk android:minSdkVersion="7" /> </manifest>

效果图：