小编Aza*_*777的帖子

我是一名初学者.我正在尝试使用通用图像加载器来显示从站点解析的图像,但它不起作用.我究竟做错了什么？

谢谢.

这是一个测试程序.

package com.example.imageloader;

public class MainActivity extends ListActivity {

private final String URL = "Site_URL";
private ArrayList<Order> listItems = null;
private myAdapter myAdapter;
private ProgressDialog pd;  
ImageLoader imageLoader;    
DisplayImageOptions options;    
String imgSrc;
ListView lv;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    listItems = new ArrayList<Order>(); 
    this.myAdapter = new myAdapter(this, R.layout.list_item, listItems);
    setListAdapter(this.myAdapter);

    new Parse().execute(URL);

    lv = getListView();

    imageLoader = ImageLoader.getInstance();
    imageLoader.init(ImageLoaderConfiguration.createDefault(MainActivity.this));

    options = new DisplayImageOptions.Builder()
    .showStubImage(R.drawable.ic_launcher)
    .showImageForEmptyUri(R.drawable.ic_launcher)
    .cacheOnDisc()
    .cacheInMemory()
    .build();
}


private class Parse extends AsyncTask<String, Integer, …