ZoomIndicator.java 文件源码

/**
 * 用于小圆点的放大缩小
 * @param view
 * @param type
 */
private void targetViewAnim(final View view, final int type){
    AnimatorSet animatorSet = new AnimatorSet();
    ObjectAnimator scaleX = null;
    ObjectAnimator scaleY = null;
    ObjectAnimator alpha = null;
    if (type == ANIM_OUT){
        scaleX = ObjectAnimator.ofFloat(view,"scaleX",SCALE_MIN,mScale_max);
        scaleY = ObjectAnimator.ofFloat(view,"scaleY",SCALE_MIN,mScale_max);
        alpha = ObjectAnimator.ofFloat(view,"alpha",mAlpha_min,ALPHA_MAX);
        animatorSet.setDuration(ANIM_OUT_TIME);
    }else{
        scaleX = ObjectAnimator.ofFloat(view,"scaleX",mScale_max,SCALE_MIN);
        scaleY = ObjectAnimator.ofFloat(view,"scaleY",mScale_max,SCALE_MIN);
        alpha = ObjectAnimator.ofFloat(view,"alpha",ALPHA_MAX,mAlpha_min);
        animatorSet.setDuration(ANIM_IN_TIME);
    }
    animatorSet.play(scaleX).with(scaleY).with(alpha);

    animatorSet.setInterpolator(new AccelerateDecelerateInterpolator());
    animatorSet.start();

}