我有一个Activity名为“HomeActivity”的，其中有一个底部导航菜单和四个片段。活动有一个FloatingActionButton，当我点击它时，它会打开一个bottomSheetFragment包含一个的RecyclerView，当我从中点击一个项目时，我希望将一些值发送到fragment('HomeFragment')，它是'HomeActivity'的一部分
在网上做了很多搜索后，我做了以下但我无法获取fragment.
以下是fragment我要发送数据的地方。
'HomeBottomSheetFragment.kt'
class HomeBottomSheetFragment: BottomSheetDialogFragment() {
private lateinit var binding: FragmentHomeBottomSheetBinding
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
FirestoreClass().getCategoryList(this)
}
override fun onCreateView(
inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?
): View {
binding = FragmentHomeBottomSheetBinding.inflate(inflater, container, false)
return binding.root
}
fun successCategoryList(categoryList: ArrayList<ProdCategories>) {
binding.rvHomeCategories.visibility = View.VISIBLE
binding.rvHomeCategories.layoutManager = GridLayoutManager(context, 4)
binding.rvHomeCategories.setHasFixedSize(true)
val categoryAdapter = CategoryListAdapter(requireContext(), categoryList)
binding.rvHomeCategories.adapter = categoryAdapter
categoryAdapter.setOnClickListener(object :CategoryListAdapter.OnClickListener{
override fun onClick(position: Int, category: ProdCategories) {
val myFragment = HomeFragment()
val bundle = Bundle()
bundle.putString("category", category.category_name)
myFragment.arguments = bundle
fragmentManager?.beginTransaction()?.replace(R.id.nav_host_fragment,HomeFragment())?.commit()
}
})
}
}
以下是上述片段的适配器（'HomeBottomSheetFragment.kt'），'CategoryListAdapter.kt'。
open class CategoryListAdapter(private val context: Context, private var list: ArrayList<ProdCategories>)
: RecyclerView.Adapter<RecyclerView.ViewHolder>() {
private var onClickListener: OnClickListener? = null
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): RecyclerView.ViewHolder {
return MyViewHolder(
HomeBottomsheetCategoryListLayoutBinding.inflate(
LayoutInflater.from(
parent.context
), parent, false
)
)
}
override fun onBindViewHolder(holder: RecyclerView.ViewHolder, position: Int) {
val model = list[position]
if (holder is MyViewHolder) {
GlideLoader(context).loadProductPicture(model.category_image, holder.binding.ivCategoryImage)
holder.binding.tvCategoryName.text=model.category_name
}
holder.itemView.setOnClickListener {
if (onClickListener != null) {
onClickListener!!.onClick(position, model)
}
}
}
override fun getItemCount(): Int {
return list.size
}
fun setOnClickListener(onClickListener: OnClickListener) {
this.onClickListener = onClickListener
}
interface OnClickListener{
fun onClick(position: Int, category: ProdCategories)
}
private class MyViewHolder(val binding: HomeBottomsheetCategoryListLayoutBinding) : RecyclerView.ViewHolder(binding.root)
}
以下是fragment我想要接收数据的地方。
class HomeFragment : BaseFragment() {
private var filterCategory: String?= null
override fun onCreateView(
inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?
): View? {
binding = FragmentHomeBinding.inflate(inflater, container, false)
val bundle = this.arguments
if (bundle!=null) {
filterCategory = bundle.getString("category")
}
return binding.root
}
}
我只知道我做的不对，请帮我解决它。