RatingBar使用小例子

效果圖如下：

activity_rating_bar.xml中的代碼如下：

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" 
    android:orientation="vertical"
    android:background="#000000">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:padding="@dimen/padding_medium"
        android:text="@string/hello_world"
        tools:context=".RatingBarActivity" 
        android:textColor="#ffffff"/>

    <RatingBar 
        android:id="@+id/bigstar"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        style="?android:attr/ratingBarStyle"/>
    <LinearLayout 
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:gravity="center_horizontal">
        <TextView 
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@string/result"
            android:textColor="#ffffff"/>
        <TextView
            android:id="@+id/result" 
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textColor="#ffffff"/>
    </LinearLayout>
    <LinearLayout 
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">
        <TextView 
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@string/good"
            android:textColor="#ffffff"/>
        <RatingBar 
            android:id="@+id/smallstar"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:numStars="5"
            style="?android:attr/ratingBarStyleSmall"
            android:layout_gravity="center_vertical"/>
    </LinearLayout>
</LinearLayout>

RatingBarActivity.java中的代碼如下：

package com.bzu.ratingbar.activity;

import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.RatingBar;
import android.widget.TextView;
import android.widget.RatingBar.OnRatingBarChangeListener;
import android.support.v4.app.NavUtils;

public class RatingBarActivity extends Activity {

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_rating_bar);
        final TextView result=(TextView) this.findViewById(R.id.result);
        final RatingBar bigStar=(RatingBar) this.findViewById(R.id.bigstar);
        final RatingBar smallStar=(RatingBar) this.findViewById(R.id.smallstar);
        //點擊第一行評分
        bigStar.setOnRatingBarChangeListener(new OnRatingBarChangeListener() {
			
			@Override
			public void onRatingChanged(RatingBar ratingBar, float rating,
					boolean fromUser) {
				bigStar.setRating(rating);
				smallStar.setRating(rating/2);
				//顯示評分結果
				result.setText(String.valueOf(rating));
			}
		});
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.activity_rating_bar, menu);
        return true;
    }

    
}