imageview中的Recryler如何使不可见答案

【问题标题】：Recryler in imageview how to make invisibleimageview中的Recryler如何使不可见
【发布时间】：2021-10-15 00:09:09
【问题描述】：

我该如何解决这个问题？我想在 Imageview 中进行 recylerview 使 INVISIBLE 但它不起作用我的代码如下对不起我的英语不好:) 这个动作很多地方都找不到源

class CevaplarRecylerAdapter(
                         private val username: ArrayList<String>,
                         private val comment: ArrayList<String>,
                         )
:RecyclerView.Adapter<CevaplarRecylerAdapter.ViewHolder>() {

override fun onCreateViewHolder(
    parent: ViewGroup,
    viewType: Int
): CevaplarRecylerAdapter.ViewHolder {
    val inflater=LayoutInflater.from(parent.context)
    val view =inflater.inflate(R.layout.answer_layout, parent, false)
    return ViewHolder(view)
}

override fun onBindViewHolder(holder: CevaplarRecylerAdapter.ViewHolder, position: Int) {
    holder.UsernameText?.text=username[position]
    holder.LoadAnswerText?.text=comment[position]
}

override fun getItemCount(): Int {
    return username.size
}

inner class ViewHolder(itemView:View):RecyclerView.ViewHolder(itemView){

    var UsernameText:TextView?=null
    var LoadAnswerText:TextView?=null
    @SuppressLint("ResourceType")
    var kontrol:ImageView=itemView.findViewById(R.drawable.cevap)

    init {
        LoadAnswerText=itemView.findViewById(R.id.LoadAnswerTexttv)
        UsernameText=itemView.findViewById(R.id.UsernameTexttv)
        kontrol.visibility = View.INVISIBLE; // ı want to this view make Invisiable          
    }
}
interface OnItemClickListener {

}

}

【问题讨论】：

标签： android kotlin android-recyclerview imageview visibility

【解决方案1】：

在您的 ViewHolderfindViewById 中，您的 imageView 的 id 不是可绘制对象

改变这一行

 @SuppressLint("ResourceType")
 var kontrol:ImageView=itemView.findViewById(R.drawable.cevap)

到

var kontrol:ImageView=itemView.findViewById(R.id.yourImageViewId)

【讨论】：

【解决方案2】：

找到了

class CevaplarRecylerAdapter(
                         private val username: ArrayList<String>,
                         private val comment: ArrayList<String>,
                         private val check:Boolean
                         )
:RecyclerView.Adapter<CevaplarRecylerAdapter.ViewHolder>() {

override fun onCreateViewHolder(
    parent: ViewGroup,
    viewType: Int
): CevaplarRecylerAdapter.ViewHolder {
    val inflater=LayoutInflater.from(parent.context)
    val view =inflater.inflate(R.layout.answer_layout, parent, false)
    return ViewHolder(view)
}

override fun onBindViewHolder(holder: CevaplarRecylerAdapter.ViewHolder, position: Int) {
    holder.UsernameText?.text=username[position]
    holder.LoadAnswerText?.text=comment[position]
    var a=true
    if (a==true){
        Picasso.get().load("https://firebasestorage.googleapis.com/v0/b/egitimnoktasilast.appspot.com/o/images%2F06b57525-0f40-4f86-9fae-8dc6082aab7e.jpg?alt=media&token=5183e857-2252-48b3-bbca-f96a0517ddce").into(holder.photo)
    }
}

override fun getItemCount(): Int {
    return username.size
}



inner class ViewHolder(itemView:View):RecyclerView.ViewHolder(itemView){

    var UsernameText:TextView?=null
    var LoadAnswerText:TextView?=null
       var photo:ImageView?=null


    init {
        LoadAnswerText=itemView.findViewById(R.id.LoadAnswerTexttv)
        UsernameText=itemView.findViewById(R.id.UsernameTexttv)
        photo=itemView.findViewById(R.id.Rightimage)
        Visibility(check)
    }

     fun Visibility(check: Boolean){
        if (check==true){
            photo!!.visibility=View.VISIBLE
        }
         else{
            photo!!.visibility=View.INVISIBLE
        }
    }



}

interface OnItemClickListener {

}

}

【讨论】：

【解决方案3】：

你需要在drawable的地方添加你的imageview的id，如下所示-

替换这个

   var kontrol:ImageView=itemView.findViewById(R.drawable.cevap)

有了这个

   var kontrol:ImageView=itemView.findViewById(R.id.yourimageviewid)

【讨论】：