android学习——SeekBar和RatingBar

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

class SeekBarListener implements OnSeekBarChangeListener{

@Override
public void onProgressChanged(SeekBar seekBar, int progress,
boolean fromUser) {
// TODO Auto-generated method stub
System.out.println("changed");
}

@Override
public void onStartTrackingTouch(SeekBar seekBar) {
// TODO Auto-generated method stub
System.out.println("start");
}

@Override
public void onStopTrackingTouch(SeekBar seekBar) {
// TODO Auto-generated method stub
System.out.println("stop");
}

}

<RatingBar android:stepSize="0.5"  步长
android:layout_height="wrap_content"
android:numStars="5"  总长
android:id="@+id/Ratingbar"
android:layout_width="wrap_content"
android:rating="2" />  默认选中

class RatingBarListener implements RatingBar.OnRatingBarChangeListener{

@Override
public void onRatingChanged(RatingBar ratingBar, float rating,
boolean fromUser) {
// TODO Auto-generated method stub
System.out.println(ratingBar.getStepSize());
}
}