如何在RecyclerView kotlin的两个不同视图上实现两个OnClickListener？
如何在RecyclerView kotlin的两个不同视图上实现两个OnClickListener？
提问于 2021-06-11 08:24:28
我正在处理一个包含两个视图的RecyclerView项:一个TextView和一个ImagaView。我希望能够同时点击这两个按钮来实现不同的功能。
我该怎么做呢？
这是我的适配器
class AddMeasurementAdapter(private val currentList:MutableList<DressMeasurementModel>, private val listener1: RecyclerClickListener, private val listener2: RecyclerClickListener): RecyclerView.Adapter<AddMeasurementAdapter.CardViewHolder>() {
//inner class
inner class CardViewHolder (itemView : View):RecyclerView.ViewHolder(itemView), View.OnClickListener{
val display:TextView = itemView.findViewById(R.id.measurement_recyclerview_item)
//Binding the data with the view
fun bind(dressMeasurementModel: DressMeasurementModel){
display.text = "${dressMeasurementModel.measurementName} ${dressMeasurementModel.measurement}"
}
init {
itemView.setOnClickListener(this@CardViewHolder)
}
override fun onClick(v: View?) {
val position: Int = adapterPosition
if (position != RecyclerView.NO_POSITION) {
listener1.onItemClick1(position, currentList)
}
if (position != RecyclerView.NO_POSITION) {
listener2.onItemClick2(position, currentList)
}
}
}
//Creating view
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): CardViewHolder {
val view = LayoutInflater.from(parent.context).inflate(R.layout.measurement_fragment_recyclerview_items, parent, false)
return CardViewHolder(view)
}
//Binding the view
override fun onBindViewHolder(holder: CardViewHolder, position: Int) {
holder.bind(currentList[position])
}
//Getting the item cout size
override fun getItemCount(): Int {
return currentList.size
}
}这是我的界面
interface RecyclerClickListener {
fun onItemClick1(position: Int, currentList: MutableList<DressMeasurementModel>)
fun onItemClick2(position: Int, currentList: MutableList<DressMeasurementModel>)
}回答 3
Stack Overflow用户
发布于 2021-06-11 11:13:08
可以在createViewHolder中添加监听器，如下所示
//Creating view
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): CardViewHolder {
val view = LayoutInflater.from(parent.context).inflate(R.layout.measurement_fragment_recyclerview_items, parent, false)
view.textView.onClick{}
view.image.onClick{}
return CardViewHolder(view)
}Stack Overflow用户
发布于 2021-06-11 10:17:04
好的，这是答案的Kotlin版本。
在viewholder bind方法中，
fun bind(dressMeasurementModel: DressMeasurementModel) {
...
var position = adapterPosition
display.setOnClickListener {
listener.onTextClick(position)
}
image.setOnClickListener {
listener.onImageClick(position)
}
...
}Stack Overflow用户
发布于 2021-06-12 04:15:01
我后来发现了这一点，所以我想分享我是如何做到的。
class AddMeasurementAdapter(
private val currentList: MutableList<DressMeasurementModel>,
private val listener1: RecyclerClickListener,
private val listener2: RecyclerClickListener
) : RecyclerView.Adapter<AddMeasurementAdapter.CardViewHolder>() {
// inner class
inner class CardViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
val display: TextView = itemView.findViewById(R.id.measurement_recyclerview_item)
val delete: ImageView = itemView.findViewById(R.id.measurementment_recyclerview_item_delete_button)
// Binding the data with the view
fun bind(dressMeasurementModel: DressMeasurementModel) {
display.text = "${dressMeasurementModel.measurementName} ${dressMeasurementModel.measurement}"
}
}
// Creating view
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): CardViewHolder {
val view = LayoutInflater.from(parent.context).inflate(
R.layout.measurement_fragment_recyclerview_items,
parent,
false
)
return CardViewHolder(view)
}
// Binding the view and attaching the listener
override fun onBindViewHolder(holder: CardViewHolder, position: Int) {
holder.bind(currentList[position])
holder.display.setOnClickListener {
listener1.onItemClickToEdit(holder.adapterPosition, currentList)
}
holder.delete.setOnClickListener {
listener2.onItemClickToDelete(holder.adapterPosition, currentList)
}
}
// Getting the item cout size
override fun getItemCount(): Int {
return currentList.size
}
}当我在fun bind()内部分配onClickListener时，listener覆盖了整个itemView布局，而不是布局内的单个视图，因此只需单击一次listener。同样的事情也适用于内部类。
这就是界面
interface RecyclerClickListener {
fun onItemClickToEdit(position: Int, currentList: MutableList<DressMeasurementModel>)
fun onItemClickToDelete(position: Int, currentList: MutableList<DressMeasurementModel>)
}通过在fragment的任一活动中扩展接口，您就拥有了自己的onclickListener。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/67929902
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