从零开始学android<RatingBar评分组件.二十三.>

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".MainActivity" >

    <RatingBar
        android:id="@+id/ratingBar1"
        android:numStars="5"//设置最多个数
        android:rating="3"//初始个数
        android:stepSize="0.5"//设置步长
        android:isIndicator="false"//可以操作
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="90dp" />

    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/ratingBar1"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="70dp"
        android:textAppearance="?android:attr/textAppearanceMedium" />

</RelativeLayout>

package com.example.ratingbar;

import org.w3c.dom.Text;

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

public class MainActivity extends Activity {
	private RatingBar ratingBar;
	private TextView textView;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		ratingBar = (RatingBar) this.findViewById(R.id.ratingBar1);
		textView = (TextView) this.findViewById(R.id.textView1);
//		设置ratingBar的监听方法
		ratingBar.setOnRatingBarChangeListener(new OnRatingBarChangeListener() {

			@Override
			public void onRatingChanged(RatingBar ratingBar, float rating,
					boolean fromUser) {
				// TODO Auto-generated method stub
//				textView append显示数据
//			textView.append("***当前值："+rating+"**步长："+ratingBar.getStepSize()+"\n");
//			switch case 语句对评价的星星个数进行判断 给出相应的操作
				switch ((int)rating) {
			case 1:
				textView.setText("当前的用户评价：太糟了");
				break;
				case 2:
					textView.setText("当前的用户评价：不太好");
				break;
				case 3:
					textView.setText("当前的用户评价：不错哦");
				break;
				case 4:
					textView.setText("当前的用户评价：很好哦");
				break;
				case 5:
					textView.setText("当前的用户评价：太棒了");
				break;
			default:
				break;
			}
			}
		});

	}

}