使用AsyncTask将图像加载到自定义适配器中

public class CustomAdapter extends ArrayAdapter<String> {
    private Context context;
    private List<String> imageUrls;

    public CustomAdapter(Context context, List<String> imageUrls) {
        super(context, R.layout.list_item, imageUrls);
        this.context = context;
        this.imageUrls = imageUrls;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        if (convertView == null) {
            convertView = LayoutInflater.from(context).inflate(R.layout.list_item, parent, false);
        }

        ImageView imageView = convertView.findViewById(R.id.image_view);
        String imageUrl = imageUrls.get(position);

        new LoadImageTask(imageView).execute(imageUrl);

        return convertView;
    }

    private class LoadImageTask extends AsyncTask<String, Void, Bitmap> {
        private ImageView imageView;

        public LoadImageTask(ImageView imageView) {
            this.imageView = imageView;
        }

        @Override
        protected Bitmap doInBackground(String... strings) {
            String imageUrl = strings[0];
            return downloadImage(imageUrl);
        }

        @Override
        protected void onPostExecute(Bitmap bitmap) {
            imageView.setImageBitmap(bitmap);
        }

        private Bitmap downloadImage(String imageUrl) {
            // 下载图像并返回Bitmap对象
        }
    }
}