Question

我有带有Imageview和textview的gridview，文本视图正确显示，并且图像需要花费一些时间才能从服务器加载，我的问题是当我向下滚动图像时，gridview中缺少图像，我正在使用volly NetworkImageView进行加载来自url的数据，这是我的gridview适配器

 public class GridViewWordAdapter extends   BaseAdapter {

private ImageLoader imageLoader;
private Context context;
private List<Word> movieItems;
LayoutInflater inflater;

public GridViewWordAdapter(Context context, List<Word> movieItems) {
this.context = context;
this.movieItems = movieItems;
}

@Override
public int getCount() {
return movieItems.size();
}

@Override
public Object getItem(int position) {
return movieItems.get(position);
}

@Override
public long getItemId(int position) {
return position;
}

static class ViewHolderItem {

TextView textViewItem;
TextView textViewen;
TextView textViewar;
TextView textViewtag;
TextView textViewaudio;
NetworkImageView networkImageView;
}


@Override
public View getView(int position, View convertView, ViewGroup parent)          { 

View gridViewAndroid;

if (convertView == null) {
    inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    gridViewAndroid = inflater.inflate(R.layout.gridview_word_layout, null);
} else {
    gridViewAndroid = (View) convertView;
}

TextView textViewen = (TextView) gridViewAndroid.findViewById(R.id.tv_word_en);
TextView textViewar = (TextView) gridViewAndroid.findViewById(R.id.tv_word_ar);
TextView textViewtag = (TextView) gridViewAndroid.findViewById(R.id.tv_word_tagoi);
TextView textViewaudio = (TextView) gridViewAndroid.findViewById(R.id.tv_audio);
NetworkImageView networkImageView = (NetworkImageView) gridViewAndroid.findViewById(R.id.android_gridview_word_image);

Word word = movieItems.get(position);

imageLoader =    CustomVolleyRequest.getInstance(context).getImageLoader();
imageLoader.get(word.getImg(),     ImageLoader.getImageListener(networkImageView,
        R.mipmap.ic_launcher, android.R.drawable.ic_dialog_alert));

networkImageView.setImageUrl(word.getImg(), imageLoader);
textViewen.setText(word.getEnglish());
textViewar.setText(word.getArabic());
textViewtag.setText(word.getTagoi());
textViewaudio.setText(word.getAudio());

return gridViewAndroid;
}
}

在此先感谢

Answer 1

可能的改变你必须作出是，
1.您正在viewholder和getview（）中声明视图。仅在getview（）中声明它们。
2. {% extends 'base.html' %} {% load staticfiles %} {% load embed_video_tags %} {% block metadescription %} {% if category %} {{ category.description|truncatewords:155 }} {% else %} Welcome to the Cushion Store {% endif %} {% endblock %} {% block title %} {% if category %} {{ category.name }} - Perfect Cushion Store {% else %} See Our Cushion Collection - Perfect Cushion {% endif %} {% endblock %} {% block content %} <div class="my_header_samples"> <br> <br> <br> <div class="container"> <p class="my_samples_title">Paquete de muestras a S/10</p> <p>192 reviews<i class="gold-star fas fa-star-half-alt"></i> <i class="gold-star fas fa-star-half-alt"></i> <i class="gold-star fas fa-star-half-alt"></i> </p> <div class="row"> <div class="text-center"> <a href="{% url 'shop:SamplePack' 'muestras' 'sample-pack' %}" class="btn btn-azul text-white btn-block">Agregar al carrito</a> </div> </div> </div> </div> <br> <br> <div class="container"> <br> <br> <br> <p class="my_samples_subtitle text-center">O también puedes obtener tus muestras con tu diseño personalizado.</p> <br> <div class="row col-md-12"> {% for muestra in muestras %} <div class="col-md-3"> <div class="text-center"> <a href="{{muestra.get_url }}"><img class="my_image_medium" src="{{ muestra.image.url }}" alt="{{ muestra.name }}"></a> </div> <p class="text-center">{{ muestra.name }}</p> </div> {% endfor %} </div> <br> <br> <div class="row col-md-12"> <p class="text-center"> {% video categoria_muestras.video as my_video %} {% video my_video "medium" %} {% endvideo %} </p> </div> </div> <br> <br> {% endblock %}应是有效串URL格式。
3.使用其前景或背景图像，而不是仅使用R.mipmap.ic_launcher。
4. 收集完所有数据后，使用word.getImg()。
希望它帮助。

GridView中缺少图像

1 个答案: