动态列表中的行的Andr​​oid电视的Leanback添加更多的卡 [英] Dynamically add more cards in a list Row android TV leanback

问题描述

我现在工作的一个Android TV的应用相当长的一段时间，我都来远在其上工作时。我试图发展像爆米花时间的应用程序，但它是谷歌nexus电视盒。
我在哪里卡住的问题是非常简单的，但即使很多的努力后，我仍然无法找出解决方案。
我从我的数据库中获取JSON数据里面有所有的电影细节和环节，这工作完全正常。
在所有应用视图

I am working on a Android TV app for quite some time now and I have come far while working on it. I am trying to develop an app like popcorn time but it's for Google nexus TV box. The problem where I am stuck in, is really simple but even after a lot of effort I am still unable to figure out the solution. I am fetching the json data from my database which has all the movies details and links and this works perfectly fine. Over all app view

现在那些谁使用的Andr​​oid电视上的你管的应用程序必须注意到，它是建立在Leanback的，当你在listrow向下滚动更多的卡加入到排，同样的应用程序所做的JSON调用来获取更多根据我们在滚动的类别数据。（这就是我想要做的）

Now those who have used the you tube app on Android TV must have noticed that it was built on leanback and as you scroll down in a listrow more cards are added into a row and likewise the app made the json calls to fetch more data according to the category we are scrolling in. (that's what I want to do)

现在它是不可能的，如果我要求大数据需要很长的时间，所以我设计了一个办法通过它我可以在滚动JSON调用获取一切从服务器，但我无法present它们在运行时listrow。

Right now it is impossible, if I request for large data it takes a long time to fetch everything from the server so I have devised a way via which I can make json calls on scroll but I am unable to present them in a listrow at runtime.

推荐答案

要项添加到presenter;

To add items to a presenter;

CardPresenter channelCardPresenter = new CardPresenter();
ArrayObjectAdapter channelRowAdapter = new ArrayObjectAdapter(channelCardPresenter);
channelRowAdapter.add(new Movie("Movie Title"));
HeaderItem header = new HeaderItem(0, "My Channels");
mRowsAdapter.add(new ListRow(header, channelRowAdapter));

当然，这可能只是你正在创建的UI第一次工作。未来的时间可能无法做到这一点。在我的应用程序，<一个href=\"https://github.com/Fleker/CumulusTV/blob/master/app/src/main/java/com/felkertech/n/tv/LeanbackFragment.java\" rel=\"nofollow\">https://github.com/Fleker/CumulusTV/blob/master/app/src/main/java/com/felkertech/n/tv/LeanbackFragment.java,我创建了一个将我想要做的应用程序的完全重绘每次调用方法：

Of course this may only work for the first time you're creating the UI. Future times may not do this. In my app, https://github.com/Fleker/CumulusTV/blob/master/app/src/main/java/com/felkertech/n/tv/LeanbackFragment.java, I create a method that will be called each time I want to do a full redraw of the app:

public void refreshUI() {
    prepareBackgroundManager();
    setupUIElements();
    loadRows(); //Generate and populate all the rows
    setupEventListeners();
}

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