S81018-19212752.gif

我是用recycleView實(shí)現(xiàn)的，每隔30毫秒調(diào)用一次smoothScrollBy(x,y)方法就可以了。

private fun startScroll() {
        Observable.interval(30, TimeUnit.MILLISECONDS)
                .takeUntil { stopScoll }
                .subscribeOn(Schedulers.io())
                .observeOn(AndroidSchedulers.mainThread())
                .subscribe {
                    rvMarquee.smoothScrollBy(15, 0)
                }
    }

因?yàn)槲疫@個(gè)頁(yè)面每次onResume的時(shí)候都要刷新數(shù)據(jù)，所以在請(qǐng)求數(shù)據(jù)成功后調(diào)用startScroll(),并將stopScroll置為false。然后在onPause()里將stopScroll置為true就可以了。因?yàn)榕荞R燈是無(wú)限跑的，但數(shù)據(jù)是不是很多，所以我直接將數(shù)據(jù)復(fù)制了1000份，這樣跑馬燈在短時(shí)間內(nèi)就不會(huì)停止了。

override fun onGetTaskCenterSuccess(taskcenter: TaskCenter) {
        val marqueeRecords = taskcenter.marqueeRecords
        val mutableList = mutableListOf<Marquee>()
        if (!marqueeRecords!!.isEmpty()) {
            (0..1000).forEach {
                mutableList.addAll(marqueeList)
            }
        }
        if (marqueeAdapter.data == null)
            marqueeAdapter.setNewData(mutableList)
        else
            marqueeAdapter.replaceData(mutableList)
        stopScoll = false
        startScroll()
    }

override fun onPause() {
        super.onPause()
        stopScoll = true
    }