如何使用 kotlin android 制作我的 Firebase Recycler 适配器 onClick 的项目

Question

在 FirestoreUI 的帮助下，我建立了一个 recyclerview，其中包含来自我的云 firestore 数据库的项目。现在我希望能够在单击此列表的项目后触发事件*（*该事件基本上是一个新的 activity，我可以在其中找到有关该项目的更多详细信息）我正在使用 Kotlin 和 android工作室。 这是我放置所有需要的代码的 activity :

    class UserViewHolder(itemView : View) : RecyclerView.ViewHolder(itemView)
class MeetingActivity : AppCompatActivity() {
    val db = Firebase.firestore
    private val newMeetingActivityRequestCode = 1
    private lateinit var rvMeetings : RecyclerView
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_meeting)
        rvMeetings = findViewById(R.id.rvMeetings)
        val query : CollectionReference = db.collection("Meetings")
        val options = FirestoreRecyclerOptions.Builder<Meeting>().setQuery(query , Meeting::class.java)
            .setLifecycleOwner(this).build()
        val adapter = object: FirestoreRecyclerAdapter<Meeting, UserViewHolder>(options){
            override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): UserViewHolder {
                val view = LayoutInflater.from(parent.context)
                    .inflate(R.layout.meeting_raw_layout, parent, false)
                return UserViewHolder(view)
            }
                override fun onBindViewHolder(holder: UserViewHolder, position: Int, model: Meeting) {
                val tvName : TextView = holder.itemView.findViewById(R.id.tv1)
                val tvEmojis : TextView = holder.itemView.findViewById(R.id.tv2)
                tvName.text = model.name
                tvEmojis.text = model.time
            }
        }
        rvMeetings.adapter = adapter
        rvMeetings.layoutManager = LinearLayoutManager(this)

        val fab: View = findViewById(R.id.fab)
        fab.setOnClickListener {
            fabOnClick()
        }

    }

    private fun fabOnClick() {
        val intent = Intent(this, AddMeetingActivity::class.java)
        startActivityForResult(intent, newMeetingActivityRequestCode)
    }

}

如有任何帮助，我们将不胜感激！

Answer 1

在您的列表项中设置 OnClickListener

  override fun onBindViewHolder(holder: UserViewHolder, position: Int, model: Meeting) {
                val tvName : TextView = holder.itemView.findViewById(R.id.tv1)
                val tvEmojis : TextView = holder.itemView.findViewById(R.id.tv2)
                tvName.text = model.name
                tvEmojis.text = model.time
                holder.itemView.setOnClickListener {
                    //do something
                }