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当我使用ArrayList <ArrayList<String>>时，文本被过滤，但图像显示不正确（图像的顺序保持不变）。使用ArrayAdapter在自定义列表视图中过滤文本和图像
当我使用ArrayList <HashMap<String, String>>时，文本没有很好地过滤（所有元素都被过滤）。
我的代码有什么问题？ （请参阅代码如下ArrayList <HashMap<String, String>>。）
ListActivity：
public class myListActivity extends ListActivity{
private ImageInDiscountCardListAdapter adapter;
private EditText filterText;
private ArrayList<HashMap<String, String>> retailerList;
private HashMap<String, String> retailerInfo;
private TextWatcher filterTextWatcher = new TextWatcher() {
public void afterTextChanged(Editable s){
}
public void beforeTextChanged(CharSequence s, int start, int count, int after){
}
public void onTextChanged(CharSequence s, int start, int before, int count){
if (adapter!=null){
adapter.getFilter().filter(s);
}
}
};
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.my_layout);
addImageUrl();
this.filterText = (EditText) findViewById(R.id.name);
this.filterText.addTextChangedListener(filterTextWatcher);
this.adapter = new ImageInDiscountCardListAdapter(this, retailerList);
setListAdapter(adapter);
}
@Override
public void onDestroy(){
adapter.imageLoader.stopThread();
setListAdapter(null);
filterText.removeTextChangedListener(filterTextWatcher);
super.onDestroy();
}
@Override
protected void onListItemClick(ListView l, View v, int position, long id){
//this.filterText.setText(this.item.get(position));
}
public void addImageUrl(){
this.retailerList = new ArrayList<HashMap<String,String>>();
this.retailerInfo = new HashMap<String, String>();
retailerInfo.put("name", "Fnac");
retailerInfo.put("imageUrl", "http://android-france.fr/wp-content/uploads/2010/09/FNAC.jpg");
this.retailerList.add(retailerInfo);
// etc...
}
适配器：
public class ImageInDiscountCardListAdapter extends ArrayAdapter<HashMap<String, String>> {
private Activity activity;
private ArrayList<HashMap<String, String>> retailerList;
private static LayoutInflater inflater;
public ImageLoader imageLoader;
public ImageInDiscountCardListAdapter(Activity activity, ArrayList<HashMap<String, String>> retailerList) {
super(activity, android.R.layout.simple_list_item_1, retailerList);
this.activity = activity;
this.retailerList = retailerList;
inflater = (LayoutInflater)this.activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
this.imageLoader = new ImageLoader(this.activity.getApplicationContext());
}
public static class ViewHolder{
public TextView text;
public ImageView image;
}
public View getView(int position, View convertView, ViewGroup parent){
View view = convertView;
ViewHolder holder;
if(view == null){
view = inflater.inflate(R.layout.retailer_row, null);
holder = new ViewHolder();
holder.text=(TextView)view.findViewById(R.id.retailer_name);;
holder.image=(ImageView)view.findViewById(R.id.retailer_image);
view.setTag(holder);
}
else{
holder=(ViewHolder)view.getTag();
}
holder.text.setText(getItem(position).get("name"));
holder.image.setTag(this.retailerList.get(position).get("imageUrl"));
imageLoader.DisplayImage(this.retailerList.get(position).get("imageUrl"), activity, holder.image);
return view;
}
}