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我一直在为此苦苦挣扎，尽管寻找了一段时间，却找不到答案。我有一个自定义的数组适配器，它使用自定义对象POI填充我的列表视图。使用自定义ArrayAdapter进行过滤
package com.WasserSportLotse;
import java.util.ArrayList;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.Filter;
import android.widget.ImageView;
import android.widget.TextView;
class poiAdapter extends ArrayAdapter<POI>{
private ArrayList<POI> items;
private Context mContext;
public ArrayList<POI> allItems;
private Filter filter;
public ArrayList<POI> filtered;
public poiAdapter(Context context, int textViewResourceId, ArrayList<POI> items){
super(context, textViewResourceId, items);
mContext = context;
this.items = items;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View v = convertView;
if (v == null) {
LayoutInflater vi = (LayoutInflater)mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
v = vi.inflate(R.layout.list_items, null);
}
POI poi = items.get(position);
if (poi != null) {
TextView mDistanceTextView = (TextView) v.findViewById(R.id.listitems_distancetxt);
TextView mNameTextView = (TextView) v.findViewById(R.id.listitems_nametxt);
TextView mCategoryTextView = (TextView) v.findViewById(R.id.listitems_categorytxt);
if (mDistanceTextView != null) {
mDistanceTextView.setText(poi.getDistance()+"km");
}
if(mNameTextView != null){
mNameTextView.setText(poi.getName());
}
if(mCategoryTextView != null){
mCategoryTextView.setText(poi.getType());
setImage(poi.getType(), v);
}
}
return v;
}
private void setImage(String type, View v) {
if ("shopping".equals(type)){
ImageView mImage = (ImageView) v.findViewById(R.id.imageView1);
mImage.setImageResource(R.drawable.shopping);
}
if ("liegestelle".equals(type)){
ImageView mImage = (ImageView) v.findViewById(R.id.imageView1);
mImage.setImageResource(R.drawable.liegestelle);
}
if ("restaurant".equals(type)){
ImageView mImage = (ImageView) v.findViewById(R.id.imageView1);
mImage.setImageResource(R.drawable.restaurant);
}
if ("schleuse".equals(type)){
ImageView mImage = (ImageView) v.findViewById(R.id.imageView1);
mImage.setImageResource(R.drawable.schleuse);
}
if ("verein".equals(type)){
ImageView mImage = (ImageView) v.findViewById(R.id.imageView1);
mImage.setImageResource(R.drawable.verein);
}
if ("tankstelle".equals(type)){
ImageView mImage = (ImageView) v.findViewById(R.id.imageView1);
mImage.setImageResource(R.drawable.tankstelle);
}
if ("faekalien".equals(type)){
ImageView mImage = (ImageView) v.findViewById(R.id.imageView1);
mImage.setImageResource(R.drawable.faekalien);
}
if ("werkstatt".equals(type)){
ImageView mImage = (ImageView) v.findViewById(R.id.imageView1);
mImage.setImageResource(R.drawable.werkstatt);
}
if ("uebernachtung".equals(type)){
ImageView mImage = (ImageView) v.findViewById(R.id.imageView1);
mImage.setImageResource(R.drawable.uebernachtung);
}
}
@Override
public Filter getFilter()
{
if(filter == null)
filter = new POITypeFilter();
return filter;
}
private class POITypeFilter extends Filter
{
@Override
protected FilterResults performFiltering(CharSequence constraint) {
// NOTE: this function is *always* called from a background thread, and
// not the UI thread.
constraint = constraint.toString().toLowerCase();
FilterResults result = new FilterResults();
if(constraint != null && constraint.toString().length() > 0)
{
ArrayList<POI> filt = new ArrayList<POI>();
ArrayList<POI> lItems = new ArrayList<POI>();
synchronized (this)
{
lItems.addAll(items);
}
for(int i = 0, l = lItems.size(); i < l; i++)
{
POI m = lItems.get(i);
if(m.getType().toLowerCase().contains(constraint))
filt.add(m);
}
result.count = filt.size();
result.values = filt;
}
else
{
synchronized(this)
{
result.values = items;
result.count = items.size();
}
}
return result;
}
@SuppressWarnings("unchecked")
@Override
protected void publishResults(CharSequence constraint, FilterResults results) {
// NOTE: this function is *always* called from the UI thread.
filtered = (ArrayList<POI>)results.values;
notifyDataSetChanged();
clear();
for(int i = 0, l = filtered.size(); i < l; i++)
add(filtered.get(i));
notifyDataSetInvalidated();
}
}
}
我想重写getFilter方法，所以我可以通过POI.type过滤每个POI并更新listView。我打电话给getFilter像这样
@Override
protected void onRestart() {
super.onRestart();
mAdapter.getFilter().filter(getFilterSettings());
mAdapter.notifyDataSetChanged();
}
这只是返回一个黑色的屏幕，就好像所有东西都被过滤掉了。我把断点放在getFilter上，但是应用程序确实进入了它，所以我不确定应用程序是否使用这个代码。有什么明显的我失踪了？
更新 - 在那里的一半
我在这里有几个问题。它看起来应用程序没有调用getFilter作为不停在那里的断点。实际上，Davlik虚拟机只能使用这么多的中断点（记住它并不是很多）。当我使用我想要分析的代码时，它停止使用断点。我觉得我非常不走运。
然后哪里哪里一些问题code.I改变
private ArrayList<POI> items;
公众。所以它可以被读入一个新的数组，并过滤结果。现在只需要弄清楚如何使arrayAdapter再次过滤，但是在原始数组上。哇，这是一个漫长的过程。