AutoLoopTask 优化下？

[lianyagang]

static class AutoLoopTask implements Runnable {
private final WeakReference reference;

    AutoLoopTask(Banner banner) {
        this.reference = new WeakReference<>(banner);
    }

    @Override
    public void run() {
        Banner banner = reference.get();
        if (banner != null && banner.mIsAutoLoop) {
            int count = banner.getItemCount();
            if (count == 0) {
                return;
            }
            int next = (banner.getCurrentItem() + 1) % count;
            banner.setCurrentItem(next);
            banner.postDelayed(banner.mLoopTask, banner.mLoopTime);
        }
    }
}

建议添加一下，如果有且只有一条数据，就不要再发送postDelayed了

[gebaobao]

这里最大的问题是,需要在执行postDelayed()前
banner.removeCallbacks(banner.mLoopTask);
不然低性能的设备上会出现单次连续执行任务