AndroidSeekBar实现平滑滚动

public class MainActivity extends Activity implements SeekBar.OnSeekBarChangeListener{

 private int quota;//当前滑动到的值


 //我的习惯，在Activity后面implements点击事件，然后在类中处理
 @Override
 public void onProgressChanged(SeekBar seekBar, int i, boolean b) {
  quota=i;

 }

 @Override
 public void onStartTrackingTouch(SeekBar seekBar) {
  mTextView.setText("按下SeekBar ");

 }

 @Override
 public void onStopTrackingTouch(SeekBar seekBar) {
  mTextView.setText("松开SeekBar ");
  setSeekBar(quota);
 }

 private void setSeekBar(int i){
  if (i<33){
   mTextView2.setText("低温");
   Drawable drawable=getResources().getDrawable(R.drawable.green_low_img_40);
   mSeekBar.setThumb(drawable);
   mSeekBar.setProgress(1);
  }else
  if (i>66){
   mTextView2.setText("高温");
   Drawable drawable2=getResources().getDrawable(R.drawable.red_high_img_40);
   mSeekBar.setThumb(drawable2);
   mSeekBar.setProgress(99);
  }else {
   mTextView2.setText("中温");
   Drawable drawable1=getResources().getDrawable(R.drawable.yellow_mid_img_40);
   mSeekBar.setThumb(drawable1);
   mSeekBar.setProgress(50);

  }
 }

}