我怎样才能重新加载recycleview?

时间:2017-05-29 20:11:07

标签: android android-fragments rx-java2

这是我的情景:

Viewpager有两个Fragment个。包括HistoryFragment,它会在创建时加载RecycleView

我继续从另一个Activity向数据库添加一个项目,但是,它不刷新RecycleView,我需要关闭应用程序并再次加载它以查看它是否刷新。

你会如何处理?

RxJava?我如何通知听众发生了变化?或者我只是重新加载Fragment? (如果是的话,我该怎么做?)

3 个答案:

答案 0 :(得分:2)

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答案 1 :(得分:1)

“我通知听众改变了”你差不多回答了自己。在数据库中进行更新以使用新数据重新加载视图内容时,您需要使用RecyclerView适配器的函数notifyDataSetChanged()(请参阅此link)。 您还没有提供任何代码,但我认为这是您需要的缺失代码

答案 2 :(得分:0)

使用以下代码重新加载整个片段...

 FragmentTransaction ft = getFragmentManager().beginTransaction();
                                ft.detach(YourFragmentName.this).attach(YourFragmentName.this).commit();