NullPointer Exception While Doing Search Feature for ListView With BaseAdapter

Question

I just finished adding a search feature to my android widget to search through a list of the users installed applications. My app installs fine and everything but when I go to s

Answer 1

Your list contains appInfo.packageName not appInfo.name.

In performFiltering method you are adding appInfo.name to filtered list. Instead you should add appInfo.packageName.

Your for loop should be like this

 for (ApplicationInfo appInfo : originalListAppInfo) {
        String somefield = appInfo.packageName;
        if (somefield.toLowerCase().contains(constraint.toString())) {
              myFilteredAppList.add(appInfo);
        }
  }

This should work. And never forget to check for null values in publishResults method

 @Override
protected void publishResults(CharSequence constraint, FilterResults results) {

  if(results.values != null)
  {
    mListAppInfo = (List)results.values;
    notifyDataSetChanged();
  }

}