【发布时间】:2017-11-28 05:41:04
【问题描述】:
我正在关注一个在我的应用中进行自动完成的示例,我正在关注的代码是
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mList = retrievePeople();
txtSearch = (AutoCompleteTextView) findViewById(R.id.txt_search);
txtSearch.setThreshold(1);
adapter = new PeopleAdapter(this, R.layout.activity_main, R.id.lbl_name, mList);
txtSearch.setAdapter(adapter);
}
private List<People> retrievePeople() {
List<People> list = new ArrayList<People>();
list.add(new People("James", "Bond", 1));
list.add(new People("Jason", "Bourne", 2));
list.add(new People("Ethan", "Hunt", 3));
return list;
}
适配器是
public PeopleAdapter(Context context, int resource, int textViewResourceId, List<People> items) {
super(context, resource, textViewResourceId, items);
this.context = context;
this.resource = resource;
this.textViewResourceId = textViewResourceId;
this.items = items;
tempItems = new ArrayList<People>(items); // this makes the difference.
suggestions = new ArrayList<People>();
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View view = convertView;
if (convertView == null) {
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
view = inflater.inflate(R.layout.row_people, parent, false);
}
People people = items.get(position);
if (people != null) {
TextView lblName = (TextView) view.findViewById(R.id.lbl_name);
if (lblName != null)
lblName.setText(people.getName());
}
return view;
}
@Override
public Filter getFilter() {
return nameFilter;
}
/**
* Custom Filter implementation for custom suggestions we provide.
*/
Filter nameFilter = new Filter() {
@Override
public CharSequence convertResultToString(Object resultValue) {
String str = ((People) resultValue).getFirstName();
return str;
}
@Override
protected FilterResults performFiltering(CharSequence constraint) {
if (constraint != null) {
suggestions.clear();
for (People people : tempItems) {
if (people.getFirstName().toLowerCase().contains(constraint.toString().toLowerCase())) {
suggestions.add(people);
}
}
FilterResults filterResults = new FilterResults();
filterResults.values = suggestions;
filterResults.count = suggestions.size();
return filterResults;
} else {
return new FilterResults();
}
}
@Override
protected void publishResults(CharSequence constraint, FilterResults results) {
List<People> filterList = (ArrayList<People>) results.values;
if (results != null && results.count > 0) {
clear();
for (People people : filterList) {
add(people);
notifyDataSetChanged();
}
}
}
};
这里是根据名字进行搜索,但我希望根据名字和姓氏进行搜索。名字和姓氏都应该出现在过滤器中 请帮忙,在此先感谢。
【问题讨论】:
标签: android autocompletetextview android-filterable android-filter