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Android控件之RatingBar自定义星级评分样式

RatingBar为评分条控件,默认效果为若干个绿色的星星,如果想将其换成其他自定义图片就要自定义它的style。接下来通过本文给大家介绍Android控件之RatingBar自定义星级评分样式,感兴趣的朋友一起学习吧

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

<&#63;xml version="1.0" encoding="utf-8"&#63;>








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!


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