SeekBar和RatingBar的基本使用方法

SeekBar:

main.xml:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
<TextView  
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:text="测试SeekBar"
    />
<SeekBar
	android:id="@+id/seekbarId"
	android:layout_width="fill_parent"
	android:layout_height="wrap_content"
	/>
    
</LinearLayout>

 MainActivity.java:

package mars.seekbar;

import android.app.Activity;
import android.os.Bundle;
import android.widget.SeekBar;

public class MainActivity extends Activity {
    /** Called when the activity is first created. */
	private SeekBar seekBar = null;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        seekBar = (SeekBar)findViewById(R.id.seekbarId)	;
        //设置该进度条的最大值
        seekBar.setMax(100);
        seekBar.setOnSeekBarChangeListener(new SeekBarListener());
    }
    //定义一个监听器，该监听器负责监听进度条状态的改变
    private class SeekBarListener implements SeekBar.OnSeekBarChangeListener{
    	//当进度条的进度发生变化时，会调用该方法
		@Override
		public void onProgressChanged(SeekBar seekBar, int progress,
				boolean fromUser) {
			System.out.println(progress);
		}
		//当用户开始滑动滑块时，调用该方法
		@Override
		public void onStartTrackingTouch(SeekBar seekBar) {
			System.out.println("start--->" + seekBar.getProgress());
		}
		//当用户结束对滑块的滑动时，调用该方法
		@Override
		public void onStopTrackingTouch(SeekBar seekBar) {
			System.out.println("stop--->" + seekBar.getProgress());
		}
    	
    }
}

 RatingBar:

main.xml:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
<TextView  
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:text="@string/hello"
    />
<RatingBar
	android:id="@+id/ratingbarId"
	android:layout_height="wrap_content"
	android:layout_width="wrap_content"
	android:numStars="5"
	android:stepSize="1.0"
	/>
</LinearLayout>

 MainActivity.java:

package mars.ratingbar;

import android.app.Activity;
import android.os.Bundle;
import android.widget.RatingBar;

public class MainActivity extends Activity {
    /** Called when the activity is first created. */
	private RatingBar ratingBar = null;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        ratingBar = (RatingBar)findViewById(R.id.ratingbarId);
        ratingBar.setOnRatingBarChangeListener(new RatingBarListener());
    }
    
    private class RatingBarListener implements RatingBar.OnRatingBarChangeListener{

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

 如下图：