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[英]How Android Espresso click an item in Recycler View inside Recycler View?
[英]how to click in recycler view
我有一个问题,使 aa recycler view 可以被点击,但我不知道它是如何工作的。 但也许适配器必须改变才能实现,但我有点困惑如何去做。
这是我的适配器
class MainAdapter(val teamFeed: LastActivity.TeamFeed) :
RecyclerView.Adapter<ViewHolder>() {
override fun onBindViewHolder(holder: RecyclerView.ViewHolder, position: Int) {
val team = teamFeed.events.get(position)
holder.itemView.home_team.text = team.strHomeTeam
holder.itemView.away_team.text = team.strAwayTeam
holder.itemView.home_score.text = team.intHomeScore
holder.itemView.away_score.text = team.intAwayScore
holder.itemView.tanggal.text = team.dateEvent
}
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
val layoutInflater = LayoutInflater.from(parent?.context)
val cellForRow = layoutInflater.inflate(R.layout.item_layout, parent, false)
return ViewHolder(cellForRow)
}
override fun getItemCount(): Int {
return teamFeed.events.count()
}
override fun getItemViewType(position: Int): Int {
return position
}
class ViewHolder(val view: View) : RecyclerView.ViewHolder(view)
}
这是一个我想通过点击来表达意图的活动
client.newCall(request).enqueue(object : Callback, okhttp3.Callback {
override fun onResponse(call: okhttp3.Call?, response: okhttp3.Response?) {
val body = response?.body()?.string()
println(body)
val gson = GsonBuilder().create()
val teamFeed = gson.fromJson(body, TeamFeed::class.java)
runOnUiThread {
recyclerView_main.adapter = MainAdapter(teamFeed)
}
}
override fun onFailure(call: okhttp3.Call?, e: IOException) {
println("failed")
}
})
请帮助如何使它工作
原始帖子可以在这里找到
进一步的讨论可以在这里找到
这是为RecyclerView
实现OnClickListener
一种更好且耦合度更低的方法。
使用片段:
RecyclerView recyclerView = findViewById(R.id.recycler);
recyclerView.addOnItemTouchListener(
new RecyclerItemClickListener(context, recyclerView ,new RecyclerItemClickListener.OnItemClickListener() {
@Override public void onItemClick(View view, int position) {
// do whatever
}
@Override public void onLongItemClick(View view, int position) {
// do whatever
}
})
);
RecyclerItemClickListener
实现:
import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.view.GestureDetector;
import android.view.MotionEvent;
import android.view.View;
public class RecyclerItemClickListener implements RecyclerView.OnItemTouchListener {
private OnItemClickListener mListener;
public interface OnItemClickListener {
public void onItemClick(View view, int position);
public void onLongItemClick(View view, int position);
}
GestureDetector mGestureDetector;
public RecyclerItemClickListener(Context context, final RecyclerView recyclerView, OnItemClickListener listener) {
mListener = listener;
mGestureDetector = new GestureDetector(context, new GestureDetector.SimpleOnGestureListener() {
@Override
public boolean onSingleTapUp(MotionEvent e) {
return true;
}
@Override
public void onLongPress(MotionEvent e) {
View child = recyclerView.findChildViewUnder(e.getX(), e.getY());
if (child != null && mListener != null) {
mListener.onLongItemClick(child, recyclerView.getChildAdapterPosition(child));
}
}
});
}
@Override public boolean onInterceptTouchEvent(RecyclerView view, MotionEvent e) {
View childView = view.findChildViewUnder(e.getX(), e.getY());
if (childView != null && mListener != null && mGestureDetector.onTouchEvent(e)) {
mListener.onItemClick(childView, view.getChildAdapterPosition(childView));
return true;
}
return false;
}
@Override public void onTouchEvent(RecyclerView view, MotionEvent motionEvent) { }
@Override
public void onRequestDisallowInterceptTouchEvent (boolean disallowIntercept){}
}
我希望这对你有帮助
这样,从您的 Viewholder 实现 OnClickListener 事件
ClickListener.kt
接口
interface ClickListener {
fun onClick(view:View, index:Int)
}
MainAdapter
OnClick
实现
class MainAdapter(val teamFeed: LastActivity.TeamFeed, var listener: ClickListener) : RecyclerView.Adapter<MainAdapter.ViewHolder>() {
...
...
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
val layoutInflater = LayoutInflater.from(parent?.context)
val cellForRow = layoutInflater.inflate(R.layout.item_layout, parent, false)
return ViewHolder(cellForRow, listener)
}
...
...
class ViewHolder(val view: View, listener:ClickListener) : RecyclerView.ViewHolder(view), View.OnClickListener{
var listener: ClickListener?=null
init{
this.listener=listener
itemView.setOnClickListener(this)
}
override fun onClick(view: View?) {
this.listener?.onClick(view!!, adapterPosition)
}
}
使用片段:
var recyclerview=findViewById(R.id.recyclerview)
var mainAdapter=MainAdapter(/*LastActivity.TeamFeed parameter*/, object : ClickListener{
override fun onClick(view: View, index: Int) {
//do whatever
}
})
recyclerview.adapter=mainAdapter
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