CircleIndicator.java 文件源码

private void addIndicator(int orientation, @DrawableRes int backgroundDrawableId,
        Animator animator) {
    if (animator.isRunning()) {
        animator.end();
        animator.cancel();
    }

    View Indicator = new View(getContext());
    Indicator.setBackgroundResource(backgroundDrawableId);
    addView(Indicator, mIndicatorWidth, mIndicatorHeight);
    LayoutParams lp = (LayoutParams) Indicator.getLayoutParams();

    if (orientation == HORIZONTAL) {
        lp.leftMargin = mIndicatorMargin;
        lp.rightMargin = mIndicatorMargin;
    } else {
        lp.topMargin = mIndicatorMargin;
        lp.bottomMargin = mIndicatorMargin;
    }

    Indicator.setLayoutParams(lp);

    animator.setTarget(Indicator);
    animator.start();
}