【Kotlin】 列表适配器

列表的显示和操作

定义操作接口，只定义编辑和删除的功能，其他的功能可以类似扩展

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/**  * 列表中项的操作  */ interface ItemOperatorAdapter<T> {     /**      * 删除      */     fun onDelete(t: T)       /**      * 编辑      */     fun onEdit(t: T) }

　　定义RecyclerView列表适配器 

      定义页面的控件

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<androidx.recyclerview.widget.RecyclerView      android:id="@+id/rv_Content_setting_account"      android:layout_width="match_parent"      android:layout_height="match_parent"      android:background="@color/app_white" />

　　定义列表适配器

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class AccoutListItemAdapter(     private val data: List<AccountEntity>,     private val operator: ItemOperatorAdapter<AccountEntity> ) :     RecyclerView.Adapter<AccoutListItemAdapter.ViewHolder>() {         override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {           return ViewHolder(             RvAccoutContentItemBinding.inflate(                 LayoutInflater.from(                     parent.context                 ), parent, false             )         )     }       override fun onBindViewHolder(holder: ViewHolder, position: Int) {         holder.bindData(data[position], operator)     }       class ViewHolder(private val binding: RvAccoutContentItemBinding) :         RecyclerView.ViewHolder(binding.root) {         fun bindData(item: AccountEntity, operator: ItemOperatorAdapter<AccountEntity>) {                         binding.tvPauseNumber.text = "67"           }     }       override fun getItemCount(): Int {         return data.size     }     }

　　

mvvm绑定

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val inventoryListItemAdapter = AccoutListItemAdapter(testList,                 object : ItemOperatorAdapter<AccountEntity> {                     override fun onDelete(t: AccountEntity) {                         val customDialog = CustomDialog(requireActivity())                         customDialog.setsTitle("温馨提示").setsMessage("是否删除（${t.nick_name})账号？")                             .setsCancel("取消", View.OnClickListener {                                 customDialog.dismiss()                             }).setsConfirm("确定", View.OnClickListener {                                 viewModel.delete(t)//删除用户                                 customDialog.dismiss()                             }).show()                       }                       override fun onEdit(t: AccountEntity) {                         showEditAccountPopWindow(t)                     }                 })             binding.rvContentSettingAccount.adapter = inventoryListItemAdapter