Android:带图库的Volley Image loader

时间:2016-07-25 04:28:16

标签: android gallery android-volley image-loading

我正在尝试使用Volley的ImageLoader实现Gallery元素。在接下来的请求中,我收到一个列表,其中包含一些将在图库中显示的网址。我的问题是Gallery没有显示任何内容。提前谢谢。

RestApiAdapter.getImages("Food", new RestApiAdapter.RestApiCallBack<List<String>>() {
    @Override
    public void execute(List<String> object) {
        GaleriaAdapter gAdapter = new GaleriaAdapter(foodFragmentView.getContext());
        gAdapter.setImages(object);

        ((Gallery) foodFragmentView.findViewById(R.id.gallery)).setAdapter(gAdapter);
    }
});

现在适配器

import com.android.volley.toolbox.ImageLoader;
...
@Override
public View getView(int position, View convertView, ViewGroup parent) {

    String url = (String) getItem(position);
    ImageLoader imgLoader = VolleyRequest.getInstance(null).getImageLoader();

    NetworkImageView imgView = new NetworkImageView(context);
    imgView.setImageUrl(url, imgLoader);

    return imgView;
}

2 个答案:

答案 0 :(得分:0)

在将适配器添加到Grid之后是notifyDataSetChange()吗?

gAdapter.notifyDataSetChanged();

答案 1 :(得分:0)

我设法在一段时间后找出问题。基本上它错过了我自己假设的请求

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

    String url = (String) getItem(position);
    NetworkImageView imgView = new NetworkImageView(context);
    ImageLoader imgLoader = VolleyRequest.getInstance(null).getImageLoader();

    // This line of code
    imgLoader.get(url, ImageLoader.getImageListener(imgView, LOADING_IMG, ERROR_IMG));

    imgView.setImageUrl(url, imgLoader);
    return imgView;
}

来源:http://www.truiton.com/2015/03/android-volley-imageloader-networkimageview-example/