问题
I have implemented Search Filter to my SearchView in my SherlockAction Bar. I have Implemented a Custom Filter. When i type any letter i am getting an error
public class PlacesListAdapter extends ArrayAdapter<Place> implements
Filterable {
public Context mContext;
List<Place> mPlaces, orig;
public PlacesListAdapter(Context context, List<Place> places) {
super(context, R.layout.list_item_places, places);
// TODO Auto-generated constructor stub
this.mPlaces = places;
this.mContext = context;
orig = new ArrayList<Place>(places);
}
@Override
public Place getItem(int position) {
// TODO Auto-generated method stub
return mPlaces.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if (convertView == null) {
LayoutInflater viewInflater;
viewInflater = LayoutInflater.from(getContext());
convertView = viewInflater.inflate(R.layout.list_item_places, null);
holder = new ViewHolder();
holder.placeTitle = (TextView) convertView
.findViewById(R.id.place_title);
holder.placeDistance = (TextView) convertView
.findViewById(R.id.place_distance);
holder.placeCategoryIcon = (ImageView) convertView
.findViewById(R.id.place_category_icon);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
holder.placeTitle.setText(mPlaces.get(position).getPlaceName());
holder.placeDistance.setText(mPlaces.get(position).getPlaceDistance());
holder.placeCategoryIcon
.setImageResource(R.drawable.icon_category_hillstation);
// // Setting Alternative Row Colors
if (position % 2 == 0) {
convertView
.setBackgroundResource(R.drawable.list_view_places_row_1);
} else {
convertView
.setBackgroundResource(R.drawable.list_view_places_row_2);
}
return convertView;
}
static class ViewHolder {
TextView placeId;
TextView placeTitle;
TextView placeDistance;
ImageView placeCategoryIcon;
}
@Override
public Filter getFilter() {
// TODO Auto-generated method stub
return new PlaceFilter();
}
private class PlaceFilter extends Filter {
@Override
protected FilterResults performFiltering(CharSequence constraint){
FilterResults oReturn = new FilterResults();
ArrayList<Place> results = new ArrayList<Place>();
if (orig == null)
orig = mPlaces;
if (constraint != null) {
if (orig != null && orig.size() > 0) {
for (Place g : orig) {
if (g.getPlaceName()
.toLowerCase()
.startsWith(constraint.toString().toLowerCase()))
results.add(g);
}
}
oReturn.values = results;
}
return oReturn;
}
@Override
protected void publishResults(CharSequence constraint,
FilterResults results) {
mPlaces = (ArrayList<Place>) results.values;
notifyDataSetChanged();
}
}
}
ERROR
12-26 17:24:43.900: E/AndroidRuntime(18693): FATAL EXCEPTION: main
12-26 17:24:43.900: E/AndroidRuntime(18693): java.lang.IndexOutOfBoundsException: Invalid index 1, size is 1
12-26 17:24:43.900: E/AndroidRuntime(18693): at java.util.ArrayList.throwIndexOutOfBoundsException(ArrayList.java:251)
12-26 17:24:43.900: E/AndroidRuntime(18693): at java.util.ArrayList.get(ArrayList.java:304)
12-26 17:24:43.900: E/AndroidRuntime(18693): at com.m7.nomad.PlacesListAdapter.getView(PlacesListAdapter.java:68)
12-26 17:24:43.900: E/AndroidRuntime(18693): at android.widget.AbsListView.obtainView(AbsListView.java:2193)
12-26 17:24:43.900: E/AndroidRuntime(18693): at android.widget.ListView.makeAndAddView(ListView.java:1774)
12-26 17:24:43.900: E/AndroidRuntime(18693): at android.widget.ListView.fillDown(ListView.java:672)
12-26 17:24:43.900: E/AndroidRuntime(18693): at android.widget.ListView.fillSpecific(ListView.java:1330)
12-26 17:24:43.900: E/AndroidRuntime(18693): at android.widget.ListView.layoutChildren(ListView.java:1603)
12-26 17:24:43.900: E/AndroidRuntime(18693): at android.widget.AbsListView.onLayout(AbsListView.java:2044)
12-26 17:24:43.900: E/AndroidRuntime(18693): at android.view.View.layout(View.java:11418)
12-26 17:24:43.900: E/AndroidRuntime(18693): at android.view.ViewGroup.layout(ViewGroup.java:4224)
12-26 17:24:43.900: E/AndroidRuntime(18693): at android.widget.RelativeLayout.onLayout(RelativeLayout.java:925)
12-26 17:24:43.900: E/AndroidRuntime(18693): at android.view.View.layout(View.java:11418)
12-26 17:24:43.900: E/AndroidRuntime(18693): at android.view.ViewGroup.layout(ViewGroup.java:4224)
12-26 17:24:43.900: E/AndroidRuntime(18693): at android.widget.FrameLayout.onLayout(FrameLayout.java:431)
12-26 17:24:43.900: E/AndroidRuntime(18693): at android.view.View.layout(View.java:11418)
12-26 17:24:43.900: E/AndroidRuntime(18693): at android.view.ViewGroup.layout(ViewGroup.java:4224)
12-26 17:24:43.900: E/AndroidRuntime(18693): at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1628)
12-26 17:24:43.900: E/AndroidRuntime(18693): at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1486)
12-26 17:24:43.900: E/AndroidRuntime(18693): at android.widget.LinearLayout.onLayout(LinearLayout.java:1399)
12-26 17:24:43.900: E/AndroidRuntime(18693): at android.view.View.layout(View.java:11418)
12-26 17:24:43.900: E/AndroidRuntime(18693): at android.view.ViewGroup.layout(ViewGroup.java:4224)
12-26 17:24:43.900: E/AndroidRuntime(18693): at android.widget.FrameLayout.onLayout(FrameLayout.java:431)
12-26 17:24:43.900: E/AndroidRuntime(18693): at android.view.View.layout(View.java:11418)
12-26 17:24:43.900: E/AndroidRuntime(18693): at android.view.ViewGroup.layout(ViewGroup.java:4224)
12-26 17:24:43.900: E/AndroidRuntime(18693): at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1628)
12-26 17:24:43.900: E/AndroidRuntime(18693): at android.view.ViewRootImpl.handleMessage(ViewRootImpl.java:2585)
12-26 17:24:43.900: E/AndroidRuntime(18693): at android.os.Handler.dispatchMessage(Handler.java:99)
12-26 17:24:43.900: E/AndroidRuntime(18693): at android.os.Looper.loop(Looper.java:137)
12-26 17:24:43.900: E/AndroidRuntime(18693): at android.app.ActivityThread.main(ActivityThread.java:4507)
12-26 17:24:43.900: E/AndroidRuntime(18693): at java.lang.reflect.Method.invokeNative(Native Method)
12-26 17:24:43.900: E/AndroidRuntime(18693): at java.lang.reflect.Method.invoke(Method.java:511)
12-26 17:24:43.900: E/AndroidRuntime(18693): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:790)
12-26 17:24:43.900: E/AndroidRuntime(18693): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:557)
12-26 17:24:43.900: E/AndroidRuntime(18693): at dalvik.system.NativeStart.main(Native Method)
Error
Its pointing to
holder.placeTitle.setText(mPlaces.get(position).getPlaceName());
回答1:
If you debug, you'll see that mPlaces.getSize() equals 1, and trying to access the item in position 1, you'll get an ArrayOutOfBounds exception.
there is something wrong in your ArrayList and it probably doesn't have all the data you are trying to get.
回答2:
Try to cover this line
holder.placeTitle.setText(mPlaces.get(position).getPlaceName());
*with following condition *
if(position < mPlaces.size() && holder.placeTitle != null)
holder.placeTitle.setText(mPlaces.get(position).getPlaceName());
EDIT :
Here is my small implemented snippet:
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if (convertView == null) {
LayoutInflater viewInflater;
viewInflater = getLayoutInflater();
convertView = viewInflater.inflate(R.layout.listview, null);
holder = new ViewHolder();
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
// Try here first
holder.textview = (TextView) convertView.findViewById(R.id.TextView01);
holder.imageview = (ImageView) convertView.findViewById(R.id.ImageView01);
}
// Try here second
// holder.textview = (TextView)convertView.findViewById(R.id.TextView01);
// holder.imageview = (ImageView)convertView.findViewById(R.id.ImageView01);
if (holder.textview != null && position < data_text.length)
holder.textview.setText(data_text[position]);
if (holder.imageview != null && position < data_image.length)
holder.imageview.setImageResource(data_image[position]);
return convertView;
}
You can replace it with your variables.
Thanks.
回答3:
Try this code for your apps,
if (g.getPlaceName().toLowerCase().contains(constraint.toString().toLowerCase())){
results.add(g);
}
回答4:
If anyone needs the code for a SearchView in a custom action bar that goes into your activity (or in this case a ListFragment), here it is:
ActionBar actionBar = getActivity().getActionBar();
actionBar.setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM | ActionBar.DISPLAY_SHOW_HOME);
actionBar.setDisplayShowHomeEnabled(true);
actionBar.setCustomView(R.layout.your_bar);
SearchView groupSV = (SearchView)actionBar.getCustomView().findViewById(R.id.groupSV);
groupSV.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
@Override
public boolean onQueryTextChange(String newText) {
Log.d(TAG,"onQueryTextChange");
ListViewFragment.adapter.getFilter().filter(newText);
return true;
}
@Override
public boolean onQueryTextSubmit(String query) {
Log.d(TAG,"onQueryTextSubmit");
//ListViewFragment.adapter.getFilter().filter(query);
return true;
}
});
You will need to declare your adapter as static like this in your ListViewFragment:
public static ArrayAdapter<Your_obj> adapter = null;
public class ListViewFragment extends ListFragment implements OnItemClickListener {
//...//
}
Also, make sure to check out the OP's editted code from his link: PASTEBIN EDITS
来源：https://stackoverflow.com/questions/14040364/android-indexoutofboundsexception-error-for-search-filtering-list-view