main.xml:
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/MyLayout" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent"> <RatingBar android:numStars="5" android:stepSize="0.5" android:isIndicator="false" android:id="@+id/ratingbarA" android:layout_width="wrap_content" android:layout_height="wrap_content"/> <RatingBar android:numStars="5" android:rating="3" android:isIndicator="true" android:id="@+id/ratingbarB" android:layout_width="wrap_content" android:layout_height="wrap_content"/> <TextView android:id="@+id/text" android:layout_width="fill_parent" android:layout_height="wrap_content"/> </LinearLayout>
MyRatingBarDemo.java:
import android.app.Activity; import android.os.Bundle; import android.widget.RatingBar; import android.widget.TextView; public class MyRatingBarDemo extends Activity { private RatingBar ratingBarA = null; // 定义评分组件 private TextView text = null; // 文本显示组件 @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); super.setContentView(R.layout.main); this.ratingBarA = (RatingBar) super.findViewById(R.id.ratingbarA) ; this.text = (TextView) super.findViewById(R.id.text) ;// 取得组件 this.ratingBarA.setOnRatingBarChangeListener( new OnRatingBarChangeListenerImpl()); // 设置监听 } private class OnRatingBarChangeListenerImpl implements RatingBar.OnRatingBarChangeListener { @Override public void onRatingChanged(RatingBar ratingBar, float rating, boolean fromUser) { MyRatingBarDemo.this.text.append("*** 当前值(Rating):" + ratingBar.getRating() + ",增长步长:" + ratingBar.getStepSize() + "\n"); // 增加文本显示 } } }
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