Androidx RecyclerView中的ViewHolder存在问题
在androidX中,当我制作RecyclerView适配器时,我无法将ViewHolder更改为我的私有ViewHolder。 请参阅此代码:Androidx RecyclerView中的ViewHolder存在问题,android,android-recyclerview,android-viewholder,Android,Android Recyclerview,Android Viewholder,在androidX中,当我制作RecyclerView适配器时,我无法将ViewHolder更改为我的私有ViewHolder。 请参阅此代码: @Override public void onBindViewHolder(@NonNull RecyclerView.ViewHolder holder, int position) { } 当我将RecyclerView.ViewHolder更改为我的高级ViewHolder时,如下所示: public class MyViewHolder e
@Override
public void onBindViewHolder(@NonNull RecyclerView.ViewHolder holder, int position) {
}
当我将RecyclerView.ViewHolder更改为我的高级ViewHolder时,如下所示:
public class MyViewHolder extends RecyclerView.ViewHolder {
TextView name;
ImageView image;
public MyViewHolder(View itemView) {
super(itemView);
name = (TextView) itemView.findViewById(R.id.name);
image = (ImageView) itemView.findViewById(R.id.image);
}
}
onBindViewHolder完全断开。我怎样才能解决这个问题
编辑放置视图持有者代码:
import android.content.Context;
import android.content.Intent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;
import java.util.ArrayList;
import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;
public class CountryImageAdapter extends RecyclerView.Adapter {
ArrayList personNames;
ArrayList personImages;
Context context;
public CountryImageAdapter(Context context, ArrayList personNames, ArrayList personImages) {
this.context = context;
this.personNames = personNames;
this.personImages = personImages;
}
@NonNull
@Override
public RecyclerView.ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
// infalte the item Layout
View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.sample_gridlayout, parent, false);
// set the view's size, margins, paddings and layout parameters
MyViewHolder vh = new MyViewHolder(v); // pass the view to View Holder
return vh;
}
@Override
public void onBindViewHolder(MyViewHolder holder, int position) {
holder.name.setText(personNames.get(position));
holder.image.setImageResource(personImages.get(position));
// implement setOnClickListener event on item view.
holder.itemView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
// open another activity on item click
Intent intent = new Intent(context, ListOfClickActivity.class);
intent.putExtra("TAG", "Country=" + personImages.get(position));
context.startActivity(intent);
}
});
}
@Override
public int getItemCount() {
return personNames.size();
}
public class MyViewHolder extends RecyclerView.ViewHolder {
// init the item view's
TextView name;
ImageView image;
public MyViewHolder(View itemView) {
super(itemView);
// get the reference of item view's
name = (TextView) itemView.findViewById(R.id.name);
image = (ImageView) itemView.findViewById(R.id.image);
}
}
}
您必须使用CountryImageAdapter中的Advanced ViewHolder才能使用
public class CountryImageAdapter extends RecyclerView.Adapter<CountryImageAdapter.MyViewHolder> {
....
public CountryImageAdapter.MyViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
....
}
@Override
public void onBindViewHolder(@NonNull CountryImageAdapter.MyViewHolder holder, int position) {
....
}
}
您必须使用CountryImageAdapter中的Advanced ViewHolder才能使用
public class CountryImageAdapter extends RecyclerView.Adapter<CountryImageAdapter.MyViewHolder> {
....
public CountryImageAdapter.MyViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
....
}
@Override
public void onBindViewHolder(@NonNull CountryImageAdapter.MyViewHolder holder, int position) {
....
}
}
您可以添加适配器的详细信息吗?您需要将所有适配器位置中的RecyclerView.ViewHolder替换为MyViewHolder。将MyViewHolder放置在自定义适配器中I add my onBindViewHolder,这是一个错误。您可以添加适配器的详细信息吗?您需要将RecyclerView.ViewHolder替换为MyViewHolder,在适配器的所有位置中。将MyViewHolder放在自定义适配器中。我添加my onBindViewHolder,它已损坏。谢谢Asaduzzaman博士。那工作很棒。非常感谢,谢谢你,阿萨杜扎曼博士。那工作很棒。非常感谢你。