大家好，请指导这段代码的错误，图片在列表中不可见，虽然图片的空间和其他描述可用，谢谢
public class Test extends ListActivity {
Prefs myprefs = null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.listplaceholder);
this.myprefs = new Prefs(getApplicationContext());
// install handler for processing gui update messages
ArrayList<HashMap<String, Object>> mylist = new ArrayList<HashMap<String, Object>>();
JSONObject json = JSONfunctions.getJSONfromURL("http://midsweden.gofreeserve.com/proj/androidjson.php?identifier=" +
Test.this.myprefs.getPersonalno());
try{
JSONArray earthquakes = json.getJSONArray("services");
for(int i=0;i<earthquakes.length();i++){
HashMap<String, Object> map = new HashMap<String, Object>();
JSONObject e = earthquakes.getJSONObject(i);
map.put("id", e.getString("taskid"));
map.put("pic", "Service name : " + e.getString("employeepic"));
map.put("serviceinfo", "" + e.getString("employeename")+ " : "+ e.getString("starttime")
+" To " + e.getString("endtime"));
BmpFromURL myBmpFromURL = new BmpFromURL("http://midsweden.gofreeserve.com/proj/admin/pictures/file87619.jpg");
Bitmap myBitmap = myBmpFromURL.getMyBitmap();
map.put("img",myBitmap);
mylist.add(map);
}
}catch(JSONException e) {
Log.e("log_tag", "Error parsing data "+e.toString());
}
SimpleAdapter adapter = new SimpleAdapter(this, mylist , R.layout.test,new String[] {"img", "servicename", "serviceinfo" },
new int[] { R.id.image ,R.id.item_title, R.id.item_subtitle });
setListAdapter(adapter);
final ListView lv = getListView();
lv.setTextFilterEnabled(true);
lv.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
@SuppressWarnings("unchecked")
HashMap<String, String> o = (HashMap<String, String>) lv.getItemAtPosition(position);
Toast.makeText(Test.this, "ID '" + o.get("id") + "' was clicked.", Toast.LENGTH_SHORT).show();
}
});
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.menu, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.settings:
Intent intent = new Intent(this, ShowSettings.class);
startActivity(intent);
break;
case R.id.web:
Intent intent4 = new Intent(this, MenuActivity.class);
startActivity(intent4);
break;
case R.id.services:
Intent intent2 = new Intent(this, Test.class);
startActivity(intent2);
break;
case R.id.Quit:
Intent intent3 = new Intent(this, ServicesDemo.class);
startActivity(intent3);
break;
default:
break;
}
return true;
}
}
这是Bitmap类
public class BmpFromURL {
private Bitmap myBitmap;
public BmpFromURL(String imageURL){
URL myImageURL = null;
try {
myImageURL = new URL(imageURL);
} catch (MalformedURLException error) {
error.printStackTrace();
}
try {
HttpURLConnection connection = (HttpURLConnection)myImageURL .openConnection();
connection.setDoInput(true);
connection.connect();
InputStream input = connection.getInputStream();
myBitmap = BitmapFactory.decodeStream(input);
} catch (IOException e) {
e.printStackTrace();
}
}
public Bitmap getMyBitmap() {
return myBitmap;
}
}
这是xml文件
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:cacheColorHint="#55000000"
android:background="#55000000"
>
<ImageView
android:id="@+id/image"
android:layout_width="50dip"
android:layout_height="50dip"
/>
<TextView
android:id="@+id/item_title"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium"
android:padding="2dp"
android:textSize="20dp" />
<TextView
android:id="@+id/item_subtitle"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:padding="2dp"
android:textSize="18dp" />
</LinearLayout>