罗曼米诺克回答在kotlin和作为扩展函数

fun View.colorTransition(@ColorRes startColor: Int, @ColorRes endColor: Int, duration: Long = 250L){
    val colorFrom = ContextCompat.getColor(context, startColor)
    val colorTo =  ContextCompat.getColor(context, endColor)
    val colorAnimation: ValueAnimator = ValueAnimator.ofObject(ArgbEvaluator(), colorFrom, colorTo)
    colorAnimation.duration = duration

    colorAnimation.addUpdateListener {
        if (it.animatedValue is Int) {
            val color=it.animatedValue as Int
            setBackgroundColor(color)
        }
    }
    colorAnimation.start()
}

如果你想改变当前的背景色到新的颜色，那么你可以使用这个

fun View.colorTransition(@ColorRes endColor: Int, duration: Long = 250L){
    var colorFrom = Color.TRANSPARENT
    if (background is ColorDrawable)
        colorFrom = (background as ColorDrawable).color

    val colorTo =  ContextCompat.getcolor(context, endColor)
    val colorAnimation: ValueAnimator = ValueAnimator.ofObject(ArgbEvaluator(), colorFrom, colorTo)
    colorAnimation.duration = duration

    colorAnimation.addUpdateListener {
        if (it.animatedValue is Int) {
            val color=it.animatedValue as Int
            setBackgroundColor(color)
        }
    }
    colorAnimation.start()
}

使用

myView.colorTransition(R.color.bg_color)

你可以像这样使用ValueAnimator:

 fun startColorAnimation(v: View) {
    val colorStart = v.solidColor
    val colorEnd = Color.RED
    val colorAnim: ValueAnimator = ObjectAnimator.ofInt(v, "backgroundColor", colorStart, colorEnd)
    colorAnim.setDuration(1000)
    colorAnim.setEvaluator(ArgbEvaluator())
    colorAnim.repeatCount = 1
    colorAnim.repeatMode = ValueAnimator.REVERSE
    colorAnim.start()
}

这是我在Base Activity中用来改变背景的方法。我使用在代码中生成的GradientDrawables，但可以适应。

    protected void setPageBackground(View root, int type){
        if (root!=null) {
            Drawable currentBG = root.getBackground();
            //add your own logic here to determine the newBG 
            Drawable newBG = Utils.createGradientDrawable(type); 
            if (currentBG==null) {
                if(Build.VERSION.SDK_INT<Build.VERSION_CODES.JELLY_BEAN){
                    root.setBackgroundDrawable(newBG);
                }else{
                    root.setBackground(newBG);
                }
            }else{
                TransitionDrawable transitionDrawable = new TransitionDrawable(new Drawable[]{currentBG, newBG});
                transitionDrawable.setCrossFadeEnabled(true);
                if(Build.VERSION.SDK_INT<Build.VERSION_CODES.JELLY_BEAN){
                     root.setBackgroundDrawable(transitionDrawable);
                }else{
                    root.setBackground(transitionDrawable);
                }
                transitionDrawable.startTransition(400);
            }
        }
    }

更新:如果有人遇到同样的问题，我发现，出于某种原因，在Android <4.3使用setCrossFadeEnabled(true)导致一个不受欢迎的白色效果，所以我不得不切换到一个纯色<4.3使用@Roman Minenok ValueAnimator方法上面提到。

最好的方法是使用ValueAnimator和ColorUtils.blendARGB

 ValueAnimator valueAnimator = ValueAnimator.ofFloat(0.0f, 1.0f);
 valueAnimator.setDuration(325);
 valueAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
        @Override
        public void onAnimationUpdate(ValueAnimator valueAnimator) {

              float fractionAnim = (float) valueAnimator.getAnimatedValue();

              view.setBackgroundColor(ColorUtils.blendARGB(Color.parseColor("#FFFFFF")
                                    , Color.parseColor("#000000")
                                    , fractionAnim));
        }
});
valueAnimator.start();

答案可以从很多方面给出。你也可以使用ValueAnimator的ofArgb(startColor,endColor)。

火灾> 21:

int cyanColorBg = ContextCompat.getColor(this,R.color.cyan_bg);
int purpleColorBg = ContextCompat.getColor(this,R.color.purple_bg);

ValueAnimator valueAnimator = ValueAnimator.ofArgb(cyanColorBg,purpleColorBg);
        valueAnimator.setDuration(500);
        valueAnimator.setInterpolator(new LinearInterpolator());
        valueAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
              @Override
              public void onAnimationUpdate(ValueAnimator valueAnimator) {
                   relativeLayout.setBackgroundColor((Integer)valueAnimator.getAnimatedValue());
              }
        });
        valueAnimator.start();

你可以创建一个对象动画器。例如，我有一个targetView，我想改变你的背景颜色:

int colorFrom = Color.RED;
int colorTo = Color.GREEN;
int duration = 1000;
ObjectAnimator.ofObject(targetView, "backgroundColor", new ArgbEvaluator(), colorFrom, colorTo)
    .setDuration(duration)
    .start();