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
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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!