Android控件之RatingBar自定义星级评分样式

一、RatingBar简单介绍

RatingBar是基于SeekBar（拖动条）和ProgressBar（状态条）的扩展，用星形来显示等级评定，在使用默认RatingBar时，用户可以通过触摸/拖动/按键（比如遥控器）来设置评分， RatingBar自带有两种模式，一个小风格 ratingBarStyleSmall，大风格为ratingBarStyleIndicator，大的只适合做指示，不适用与用户交互。

效果图展示：

二、实例

1.布局文件

				?

									<?xml version="1.0" encoding="utf-8"?>

									<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

									android:orientation="vertical"

									android:paddingLeft="10dip"

									android:layout_width="match_parent"

									android:layout_height="match_parent">

									<RatingBar android:id="@+id/ratingbar1"

									android:layout_width="wrap_content"

									android:layout_height="wrap_content"

									android:numStars="3"

									android:rating="2.5" />

									<RatingBar android:id="@+id/ratingbar2"

									android:layout_width="wrap_content"

									android:layout_height="wrap_content"

									android:numStars="5"

									android:rating="2.25" />

									<LinearLayout

									android:layout_width="match_parent"

									android:layout_height="wrap_content"

									android:layout_marginTop="10dip">

									<TextView android:id="@+id/rating"

									android:layout_width="wrap_content"

									android:layout_height="wrap_content" />

									<RatingBar android:id="@+id/small_ratingbar"

									style="?android:attr/ratingBarStyleSmall"

									android:layout_marginLeft="5dip"

									android:layout_width="wrap_content"

									android:layout_height="wrap_content"

									android:layout_gravity="center_vertical" />

									</LinearLayout>

									<RatingBar android:id="@+id/indicator_ratingbar"

									style="?android:attr/ratingBarStyleIndicator"

									android:layout_marginLeft="5dip"

									android:layout_width="wrap_content"

									android:layout_height="wrap_content"

									android:layout_gravity="center_vertical" />

									</LinearLayout>

2.Java代码

				?

									package wjq.WidgetDemo;

									import android.app.Activity;

									import android.os.Bundle;

									import android.widget.RatingBar;

									import android.widget.TextView;

									import android.widget.RatingBar.OnRatingBarChangeListener;

									public class RatingBarDemo extends Activity implements

									OnRatingBarChangeListener {

									private RatingBar mSmallRatingBar;

									private RatingBar mIndicatorRatingBar;

									private TextView mRatingText;

									/*

									* (non-Javadoc)

									* 

									* @see android.app.Activity#onCreate(android.os.Bundle)

									*/

									@Override

									protected void onCreate(Bundle savedInstanceState) {

									// TODO Auto-generated method stub

									super.onCreate(savedInstanceState);

									setContentView(R.layout.ratingbarpage);

									mRatingText = (TextView) findViewById(R.id.rating);

									// We copy the most recently changed rating on to these indicator-only

									// rating bars

									mIndicatorRatingBar = (RatingBar) findViewById(R.id.indicator_ratingbar);

									mSmallRatingBar = (RatingBar) findViewById(R.id.small_ratingbar);

									// The different rating bars in the layout. Assign the listener to us.

									((RatingBar)findViewById(R.id.ratingbar1)).setOnRatingBarChangeListener(this);

									((RatingBar)findViewById(R.id.ratingbar2)).setOnRatingBarChangeListener(this);

									}

									@Override

									public void onRatingChanged(RatingBar ratingBar, float rating,

									boolean fromUser) {

									final int numStars = ratingBar.getNumStars();

									mRatingText.setText( 

									" 受欢迎度" + rating + "/" + numStars);

									// Since this rating bar is updated to reflect any of the other rating

									// bars, we should update it to the current values.

									if (mIndicatorRatingBar.getNumStars() != numStars) {

									mIndicatorRatingBar.setNumStars(numStars);

									mSmallRatingBar.setNumStars(numStars);

									}

									if (mIndicatorRatingBar.getRating() != rating) {

									mIndicatorRatingBar.setRating(rating);

									mSmallRatingBar.setRating(rating);

									}

									final float ratingBarStepSize = ratingBar.getStepSize();

									if (mIndicatorRatingBar.getStepSize() != ratingBarStepSize) {

									mIndicatorRatingBar.setStepSize(ratingBarStepSize);

									mSmallRatingBar.setStepSize(ratingBarStepSize);

									}

									}

									}

关于Android控件之RatingBar自定义星级评分样式就给大家介绍这里，希望对大家有所帮助，本文写的不好还请各位大侠多多指教！

Android控件之RatingBar自定义星级评分样式

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