如何在android中的json响应中在列表视图中显示图像 [英] How to display image in a listview from json response in android

问题描述

在下面的代码中，我正在使用改型库显示json响应中的数据. 使用recylerview会显示标题，id，相册以及image.all都在显示，除了image.

Hi in the below code am displaying data from json response using retrofit library. using recylerview am displaying title,id,albumid as well as image.all are displaying except image .

但是如何显示来自url的图像.谁能帮帮我吗 这是我的适配器类.

But how to display image from url. can any one please help me this is my adapter class.

.java

public class RecyclerViewAdapterForAlbum extends RecyclerView.Adapter<RecyclerViewAdapterForAlbum.ViewHolder> {

    private List<UserAlbum> item;
    Context context ;

    public RecyclerViewAdapterForAlbum(Context context, List<UserAlbum> item ) {
        Log.d("123", "RecyclerViewAdapter");
        this.item = item;
        this.context = context;
    }

    @Override
    public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        Log.d("123", "onCreateViewHolder");
        View view = LayoutInflater.from(context).inflate(R.layout.activity_second, null);

        return new ViewHolder(view);
    }

    @Override
    public void onBindViewHolder(ViewHolder holder, int position) {
        Log.d("123", "onBindViewHolder");
        holder.user_id.setText(String.valueOf(item.get(position).getId()));
        holder.album_id.setText(String.valueOf(item.get(position).getAlbumId()));
        holder.title.setText(item.get(position).getTitle());
        //Bitmap getBitMapFromUrl=null;
       holder.imageForText.setImageResource(item.get(position).getThumbnailUrl());
    }

    @Override
    public int getItemCount() {
        Log.d("123", "getItemCount");
        return item.size();
    }

    public class ViewHolder extends RecyclerView.ViewHolder {
        public TextView album_id, user_id,title;
        public ImageView imageForText;

        public ViewHolder(View itemView) {
            super(itemView);
            Log.d("123", "ViewHolder");


            user_id = (TextView) itemView.findViewById(R.id.user_id);
            album_id=(TextView)itemView.findViewById(R.id.album_id);
            title=(TextView)itemView.findViewById(R.id.title);
            imageForText=(ImageView)itemView.findViewById(R.id.img_id);


            itemView.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
//                    int pos = getAdapterPosition();
//                    int userID=item.get(pos).getId();
//                    Intent myIntent = new Intent(v.getContext(), SecondActivity.class);
//                    myIntent.putExtra("userId",userID);
//                    context.startActivity(myIntent);

                }
            });
        }


    }
}

推荐答案

使用毕加索:

将此行添加到您的应用级build.gradle文件中.

Add this line to your app-level build.gradle file.

implementation 'com.squareup.picasso:picasso:2.71828'

您可以通过以下方式将图像设置为ImageView:

And you can simply set image to ImageView by:

Picasso.get().load(item.get(position).getThumbnailUrl()).into(holder.imageForText);

使用Glide:

将这些行添加到您的应用级build.gradle文件中.

Add these lines to your app-level build.gradle file.

implementation 'com.github.bumptech.glide:glide:4.8.0'
annotationProcessor 'com.github.bumptech.glide:compiler:4.8.0'

您可以通过以下方式将图像设置为ImageView:

And you can simply set image to ImageView by:

GlideApp.with(this).load(item.get(position).getThumbnailUrl()).into(holder.imageForText);

这篇关于如何在android中的json响应中在列表视图中显示图像的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！