RatingBar的使用方法

最新推荐文章于 2022-05-25 23:33:51 发布

最新推荐文章于 2022-05-25 23:33:51 发布 · 161 阅读

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本文介绍如何在Android应用中使用RatingBar组件实现用户评分功能，并通过代码示例展示了如何监听用户评分变化并显示评分结果。

package cn.edu.ratingbar;

import android.app.Activity;
import android.os.Bundle;
import android.widget.RatingBar;
import android.widget.Toast;
import android.widget.RatingBar.OnRatingBarChangeListener;

public class RatingBarActivity extends Activity {
    /** Called when the activity is first created. */
	private RatingBar ratingBar;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        ratingBar=(RatingBar)this.findViewById(R.id.ratingbar);
        ratingBar.setOnRatingBarChangeListener(new OnRatingBarChangeListener(){

			@Override
			public void onRatingChanged(RatingBar arg0, float arg1, boolean arg2) {
				// TODO Auto-generated method stub
				
				
				Toast.makeText(RatingBarActivity.this, arg1+"",10).show();
			}
        	
        });
    }
}

<?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="fill_parent"
    >
<TextView  
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:text="@string/hello"
    />
<RatingBar 
	android:id="@+id/ratingbar"
 	android:layout_width="fill_parent"
 	android:layout_height="wrap_content"
 	android:numStars="4"
 	android:stepSize="1"
 />
</LinearLayout>