android seekBar ratingBar

 1:activity的代码

package com.example.android21_seekbar_ratingbar;

import android.app.Activity;
import android.os.Bundle;
import android.widget.RatingBar;
import android.widget.RatingBar.OnRatingBarChangeListener;
import android.widget.SeekBar;
import android.widget.SeekBar.OnSeekBarChangeListener;

public class MainActivity extends Activity {
   
    SeekBar seekBar = null;
    RatingBar ratingBar = null;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        seekBar  = (SeekBar) this.findViewById(R.id.seekbarId);
        ratingBar = (RatingBar) this.findViewById(R.id.ratingbarld);
        seekBar.setMax(100);
        seekBar.setOnSeekBarChangeListener(new SeekBarListener());
        ratingBar.setOnRatingBarChangeListener(new RatingBarListener());
    }

    private class RatingBarListener implements OnRatingBarChangeListener{

        @Override
        public void onRatingChanged(RatingBar ratingBar, float rating, boolean fromUser) {
            System.out.println("rating-->"+rating);
        }
       
    }
   
   private class SeekBarListener implements OnSeekBarChangeListener{

    @Override//进度条改变的时候 fromUser判断是否是用户使他移动的
    public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
        System.out.println("progress");
    }

    @Override//开始托动时
    public void onStartTrackingTouch(SeekBar seekBar) {
    System.out.println("start->"+seekBar.getProgress());
       
    }

    @Override//拖动停止时
    public void onStopTrackingTouch(SeekBar seekBar) {
        System.out.println("begin->"+seekBar.getProgress());
    }
      
   }

   
}

2：layout里面的配置文件

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <SeekBar
        android:id="@+id/seekbarId"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content" />

    <RatingBar
        android:id="@+id/ratingbarld"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:numStars="5"
        android:stepSize="0.5" />

</LinearLayout>

显示为