我正在加载类别列表,根据选择的类别,我需要在RecyclerView中显示相应类别的产品. 因此,当我第一次启动Fragment时,我需要模拟用户单击默认类别-在这种情况下,它将是第一个.
I am loading a list of categories and depending on which is selected, I need to show the products of the corresponding category in the RecyclerView. So when I first start the Fragment I need to simulate the user clicking in a default category - in this case, it would be the first one.
我该如何执行呢?
推荐答案没有您的代码,我们不知道您如何实现onClickListener.
Without your code we don't know how you implement your onClickListener.
通常,您在RecyclerView.Adapter的viewHolder中实现并设置onClickListener项. 例如:ViewHolder.itemView.setOnClickListener(listener);
Normally, you implement and set the item onClickListener in the viewHolder of your RecyclerView.Adapter. For example: ViewHolder.itemView.setOnClickListener(listener);
因此解决方案是您可以使用recyclerView.findViewHolderForAdapterPosition(0).itemView.performClick()
So the solution is you can use recyclerView.findViewHolderForAdapterPosition(0).itemView.performClick()
PS:根据文档,请勿使用findViewHolderForLayoutPosition()
PS: Do not use findViewHolderForLayoutPosition() according to the Doc
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