Android - NumberPicker滚动/快速

Question

如何让数字选择器滚动/速度更快？目前从00分钟到59分钟需要付出很多努力。我已经尝试了Slowing speed of Viewpager controller in android的一些示例，并将其与数字选择器相对应，但我没有看到任何差异。

try {
        Field mScroller;
        mScroller = NumberPicker.class.getDeclaredField("mFlingScroller");
        mScroller.setAccessible(true);
        FixedSpeedScroller scroller = new FixedSpeedScroller(getContext(),null,true);

        // scroller.setFixedDuration(5000);
        // scrollBy(0,1500);

        Log.v("Scroller",""+mScroller); //getting the mFlingScroller field
        mScroller.set(this, scroller);

    } catch (NoSuchFieldException | IllegalArgumentException | IllegalAccessException e) {
        e.printStackTrace();
    }

public class FixedSpeedScroller extends Scroller {

    private int mDuration = 10;

    public FixedSpeedScroller(Context context) {
        super(context);
    }

    public FixedSpeedScroller(Context context, Interpolator interpolator) {
        super(context, interpolator);
    }

    public FixedSpeedScroller(Context context, Interpolator interpolator, boolean flywheel) {
        super(context, interpolator, flywheel);
    }


    @Override
    public void startScroll(int startX, int startY, int dx, int dy, int duration) {
        // Ignore received duration, use fixed one instead
        super.startScroll(startX, startY, dx, dy, mDuration);
    }

    @Override
    public void startScroll(int startX, int startY, int dx, int dy) {
        // Ignore received duration, use fixed one instead
        super.startScroll(startX, startY, dx, dy, mDuration);
    }
}

我将mDuration降低到低于示例（5000）的值。但仍然没有希望。一些帮助将不胜感激。提前致谢！！！ :)