项目进行的过程中有个需求是在20秒内每秒请求一次数据,请求成功的json中有个字段,如果有这个字段代表请求成功,如果没有则继续请求,直到20秒结束,20秒结束则失败
本来最开始采用countDownTimer来做,很简单就搞定了,但是项目引进了rxjava,那肯定得用rxjava试一试啊
好东西不能错过
直接上代码,并不难
class FourthActivity : BaseTitleActivity() {
private var mDisposable: Disposable? = null
private var flag: Boolean = false
private var count: Long = 0
override fun getChildView() = R.layout.act_four
override fun initData() {
requestDataByNet()
}
private fun requestDataByNet() {
Observable.interval(0, 1, TimeUnit.SECONDS)//设置0延迟,每隔一秒发送一条数据
.take(20)//设置截取前20次
.doOnSubscribe(object : Consumer<Disposable> {
override fun accept(t: Disposable?) {
this@FourthActivity.mDisposable = t
}
})
.flatMap(object : Function<Long, Observable<TaoBao>> {
override fun apply(t: Long): Observable<TaoBao> {
count = t
//请求数据的操作
return RetrofitFactory
.getInstance()
.taobao("http://baobab.kaiyanapp.com/api/v4/rankList")
}
})
.compose(compose(this.bindToLifecycle<TaoBao>()))
.subscribe(object : BaseObserver<TaoBao>() {
override fun onHandleSuccess(t: TaoBao?) {
if (count == 10L) {//模拟获取到该字段数据
flag = true
if (flag) {
mDisposable?.dispose()
}
}
if (count == 19L) {
showToastBottom("获取数据失败")
}
showToastBottom("成功=" + count)
}
})
}
}