这是我的RecyclerView代码：
class RecyclerAdapterMain(val product: ArrayList<ModelProductMain>) :
RecyclerView.Adapter<RecyclerAdapterMain.ViewHolder>() {
class ViewHolder(itemview: View) : RecyclerView.ViewHolder(itemview) {
val title: TextView = itemview.product_txt
val price: TextView = itemview.price_product
val imageproduct: ImageView = itemview.product_image
}
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
val layoutview =
LayoutInflater.from(parent.context).inflate(R.layout.product_items, parent, false)
return ViewHolder(layoutview)
}
override fun getItemCount() = product.size
override fun onBindViewHolder(holder: ViewHolder, position: Int) {
val products = product[position]
holder.title.text = products.title
holder.price.text = products.price.toString()
holder.itemView.setOnClickListener {
val activity = it.context as AppCompatActivity
activity.supportFragmentManager.beginTransaction()
.replace(R.id.homepage, ItemDetailsfragment())
.addToBackStack(null)
.commit()
val bunde = Bundle()
bunde.putString("title", products.title)
}
}
}
这是我想要传递数据的片段：
class ItemDetailsfragment : Fragment() {
override fun onCreateView(
inflater: LayoutInflater,
container: ViewGroup?,
savedInstanceState: Bundle?
): View? {
val view = inflater.inflate(R.layout.details_items_page, container, false)
val title = Bundle()
val get = title.getString("title")
d("main", "$get")
return view
}
}
当我试图从Recyclerview适配器获取数据时，我只得到了null参数。我尝试了这样的事情，同时调试了我的程序，它说来的变量是空的。我被这个卡住了，我不知道这个怎么了。。。有人能处理这个吗。。。？
将值传递给片段时：
val bundle = Bundle()
bundle.putString("title", products.title)
val myFragment = ItemDetailsfragment()
myFragment.arguments = bundle
activity.supportFragmentManager.beginTransaction()
.replace(R.id.homepage, myFragment)
.addToBackStack(null)
.commit()
检索值时：
val temp = arguments?.getString("title")