Vibrate when the gear gets up to speed

import android.animation.Animator.AnimatorListener;

import android.animation.ObjectAnimator;

import android.content.Context;

import android.graphics.drawable.RippleDrawable;

import android.os.Handler;

import android.os.Message;

import android.util.AttributeSet;

import android.view.HapticFeedbackConstants;

import android.view.MotionEvent;

import android.view.View;

import android.view.ViewConfiguration;

import android.view.animation.Animation;

import android.view.animation.AnimationUtils;

import com.android.keyguard.AlphaOptimizedImageButton;

public class SettingsButton extends AlphaOptimizedImageButton {

    protected void startContinuousSpin() {

        cancelAnimation();

        performHapticFeedback(HapticFeedbackConstants.LONG_PRESS);

        mUpToSpeed = true;

        mAnimator = ObjectAnimator.ofFloat(this, View.ROTATION, 0, 360);

        mAnimator.setInterpolator(AnimationUtils.loadInterpolator(mContext,