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因此，在进行了 5 个月的网络开发之后，我需要重新使用 android，但我注意到我的一些旧代码不再起作用了。我有一个带有数据适配器的 RecyclerView，但项目的 onClickListener 没有响应任何内容。这是我的代码的样子:
public class ProjectAdapter extends RecyclerView.Adapter<ProjectAdapter.ViewHolder> {
private List<Project> itemsData;
OnItemClickListener mItemClickListener;
public ProjectAdapter(List<Project> itemsData) {
this.itemsData = itemsData;
}
// Create new views (invoked by the layout manager)
@Override
public ViewHolder onCreateViewHolder(ViewGroup parent,
int viewType) {
// create a new views
View itemLayoutView = LayoutInflater.from(parent.getContext())
.inflate(R.layout.item_layout, parent, false);
// create ViewHolder
ViewHolder vh = new ViewHolder(itemLayoutView);
return vh;
}
// Replace the contents of a view (invoked by the layout manager)
@Override
public void onBindViewHolder(ViewHolder viewHolder, int position) {
viewHolder.txtViewId.setText(String.valueOf(itemsData.get(position).getId()));
viewHolder.txtViewName.setText(itemsData.get(position).getName());
}
// inner class to hold a reference to each item of RecyclerView
public class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener{
public TextView txtViewName, txtViewId;
public ViewHolder(View itemLayoutView) {
super(itemLayoutView);
txtViewName = (TextView) itemLayoutView.findViewById(R.id.item_name);
txtViewId = (TextView) itemLayoutView.findViewById(R.id.item_id);
}
@Override
public void onClick(View v) {
System.out.println("onClick");
TextView tv = (TextView) v.findViewById(R.id.item_name);
String id = tv.getText().toString();
mItemClickListener.onItemClick(v, getAdapterPosition(), id); //OnItemClickListener mItemClickListener;
}
}
public interface OnItemClickListener {
public void onItemClick(View view, int position, String id);
}
public void SetOnItemClickListener(final OnItemClickListener mItemClickListener) {
this.mItemClickListener = mItemClickListener;
}
// Return the size of your itemsData (invoked by the layout manager)
@Override
public int getItemCount() {
return itemsData.size();
}
}
ProjectsActivity.java
projectAdapter.SetOnItemClickListener(new ProjectAdapter.OnItemClickListener() {
@Override
public void onItemClick(View v, int position, String id) {
System.out.println("onItemClick" + id);
ActionActivity(id);
}
});
显示了列表，点击不起作用，甚至控制台的日志也没有。 有人知道我做错了什么吗？我使用 SDK v23 作为编译 sdk 版本。我的最低 SDK 版本是 v19。