Android RatingBar案例
16lz
2021-01-23
<?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="wrap_content" android:layout_height="wrap_content"> <RatingBar android:id="@+id/rbOne" android:layout_width="wrap_content" android:layout_height="wrap_content" android:numStars="3" android:rating="2.5" /> <RatingBar android:id="@+id/rbTwo" 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/textView" android:layout_width="wrap_content" android:layout_height="wrap_content" /> <RatingBar android:id="@+id/rbThree" 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/rbFour" style="?android:attr/ratingBarStyleIndicator" android:layout_marginLeft="5dip" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center_vertical" /> </LinearLayout>
package com.test;import android.app.Activity;import android.os.Bundle;import android.util.Log;import android.widget.RatingBar;import android.widget.RatingBar.OnRatingBarChangeListener;import android.widget.TextView;public class RatingBarDemo_2 extends Activity implements OnRatingBarChangeListener{ private RatingBar smallRatingBar = null; private RatingBar indicatorRatingBar = null; private TextView ratingText = null; private RatingBar rabarone,rabartwoBar;/** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.ratingbar_2); ratingText = (TextView) findViewById(R.id.textView); indicatorRatingBar = (RatingBar) findViewById(R.id.rbFour); smallRatingBar = (RatingBar) findViewById(R.id.rbThree); // The different rating bars in the layout. Assign the listener to us. rabarone=((RatingBar)findViewById(R.id.rbOne)); rabarone.setOnRatingBarChangeListener(this);rabartwoBar=((RatingBar)findViewById(R.id.rbTwo)); rabartwoBar.setOnRatingBarChangeListener(this);} @Override public void onRatingChanged(RatingBar ratingBar, float rating, boolean fromUser) { // getNumStars // Returns the number of stars shown. final int numStars = ratingBar.getNumStars(); ratingText.setText(" 欢迎程度 " + rating + "/" + numStars); if (indicatorRatingBar.getNumStars() != numStars) { indicatorRatingBar.setNumStars(numStars); smallRatingBar.setNumStars(numStars); } // getRating // Gets the current rating 评级(number of stars filled). if (indicatorRatingBar.getRating() != rating) { Log.d("sxp","rating " + rating); indicatorRatingBar.setRating(rating); smallRatingBar.setRating(rating); } // getStepSize // Gets the step size of this rating bar. final float ratingBarStepSize = ratingBar.getStepSize(); if (indicatorRatingBar.getStepSize() != ratingBarStepSize) { Log.d("sxp","ratingBarStepSize " + ratingBarStepSize); indicatorRatingBar.setStepSize(ratingBarStepSize); smallRatingBar.setStepSize(ratingBarStepSize); } }} 执行效果：
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