在Android Studio中使用Recycler View点击分页中的每个项目

Question

如何在使用分页单击项目的同时获得项目在回收器视图中的位置？

示例：如果我点击电影10，Toast消息应该显示
说"点击项目10"；

Answer 1

将接口制作到适配器类中，用于循环器视图项上的点击事件。

onItemClickListner onItemClickListner;
public void setOnItemClickListner(CommentsAdapter.onItemClickListner onItemClickListner) {
this.onItemClickListner = onItemClickListner;
}
public interface onItemClickListner {
void onClick(int position);//pass your object types.
}
@Override
public void onBindViewHolder(ItemViewHolder holder, int position) {
// below code handle click event on recycler view item.
holder.itemView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
onItemClickListner.onClick(position); //pass any data
}
});
}

之后，适配器类绑定到recyclerview并确保适配器不为null，然后调用以下代码。。

adapter.setOnItemClickListner(new CommentsAdapter.onItemClickListner()    {
@Override
public void onClick(int position) {
// pass data get here   
Toast.makeText(getApplicationContext(),""+position,Toast.LENGTH_LONG).show();
}
});

Answer 2

// Used to cache the views within the item layout for fast access
public class ViewHolder extends RecyclerView.ViewHolder implements 
View.OnClickListener {
public TextView tvName;
public TextView tvHometown;
private Context context;
public ViewHolder(Context context, View itemView) {
super(itemView);
this.tvName = (TextView) itemView.findViewById(R.id.tvName);
this.tvHometown = (TextView) itemView.findViewById(R.id.tvHometown);
// Store the context
this.context = context;
// Attach a click listener to the entire row view
itemView.setOnClickListener(this);
}
// Handles the row being being clicked
@Override
public void onClick(View view) {
int position = getAdapterPosition(); // gets item position
if (position != RecyclerView.NO_POSITION) { // Check if an item was deleted, but the user clicked it before the UI removed it
User user = users.get(position);
// We can access the data within the views
Toast.makeText(context, tvName.getText(), Toast.LENGTH_SHORT).show();
}
}
}

更多信息链接

Answer 3

在适配器中尝试此

override fun onBindViewHolder(holder: ViewHolder, position: Int) {
holder.itemView.setOnClickListener {
// Do something here.
}

Answer 4

创建一个用于加载下一页项目的接口

public interface LoadMoreItems {
void LoadItems();
}

然后添加addOnScrollListener以在视图结束时加载更多项目

recyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() {
@Override
public void onScrolled(RecyclerView recyclerView,
int dx, int dy) {
super.onScrolled(recyclerView, dx, dy);
totalItemCount = linearLayoutManager.getItemCount();
lastVisibleItem = linearLayoutManager
.findLastVisibleItemPosition();
if (!loading
&& totalItemCount <= (lastVisibleItem + visibleThreshold)) {
//End of the items
if (onLoadMoreListener != null) {
onLoadMoreListener.LoadItems();
}
loading = true;
}
}
});

add-onCreateViewHolder((是我放置ProgressBar的地方。

@Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent,
int viewType) {
RecyclerView.ViewHolder vh;
if (viewType == VIEW_ITEM) {
View v = LayoutInflater.from(parent.getContext()).inflate(
R.layout.list_row, parent, false);
vh = new StudentViewHolder(v);
} else {
View v = LayoutInflater.from(parent.getContext()).inflate(
R.layout.progressbar_item, parent, false);
vh = new ProgressViewHolder(v);
}
return vh;
}

我放置LoadItems((以添加其他项目的MainActivity是

mAdapter.setOnLoadMoreListener(new LoadMoreItems() {
@Override
public void LoadItems() {
DataItemsList.add(null);
mAdapter.notifyItemInserted(DataItemsList.size() - 1);
handler.postDelayed(new Runnable() {
@Override
public void run() {
//   remove progress item
DataItemsList.remove(DataItemsList.size() - 1);
mAdapter.notifyItemRemoved(DataItemsList.size());
//add items one by one
//When you've added the items call the setLoaded()
mAdapter.setLoaded();
//if you put all of the items at once call
// mAdapter.notifyDataSetChanged();
}
}, 2000); //time 2 seconds
}
});

刚刚关注了这个Github存储库(注意：这是使用AsyncTask，也许它作为我的答案很有用

从这个答案中给出属性