我正在使用带有AutoCompleteTextView的自定义适配器。在模拟器和我的平板电脑上都可以正常工作。但是,我的手机在横向模式下存在问题。在此模式下显示的自动完成提示是对象信息而不是文本。但是,当我选择任何项目时,相应字段中的文本将正确填充字段。
基于Android Stock Array Adapter的其他字段的“自动完成”效果很好。
我需要在“自定义适配器”中为此做些什么吗?我只看到了一个类似的问题。这个问题的一个答案是谈论重写toString方法,但是我对它的理解还不够,无法在我的代码中实现。
任何指导将不胜感激?如果您需要更多信息,请告诉我。
编辑:添加了我的自定义适配器源代码。
public class Part_Mstr_Info
{
private long part_id;
private String name, desg, org, dept;
public Part_Mstr_Info(long part_id, String name, String desg, String org, String dept)
{
this.part_id = part_id;
this.name = name;
this.desg = desg;
this.org = org;
this.dept = dept;
}
public long get_part_id() { return part_id; }
public String get_name() { return name; }
public String get_desg() { return desg; }
public String get_org() { return org; }
public String get_dept() { return dept; }
}
public class CustomAdapter extends ArrayAdapter<Part_Mstr_Info> implements Filterable{
private List<Part_Mstr_Info> entries;
private ArrayList<Part_Mstr_Info> orig;
private Activity activity;
private ArrayFilter myFilter;
public CustomAdapter(Activity a, int textViewResourceId, ArrayList<Part_Mstr_Info> entries) {
super(a, textViewResourceId, entries);
this.entries = entries;
this.activity = a;
}
public static class ViewHolder{
public TextView tv_ac_name;
public TextView tv_ac_desg;
public TextView tv_ac_org;
public TextView tv_ac_dept;
}
@Override
public int getCount(){
return entries!=null ? entries.size() : 0;
}
@Override
public Part_Mstr_Info getItem(int index) {
return entries.get(index);
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View v = convertView;
ViewHolder holder;
if (v == null) {
LayoutInflater vi =
(LayoutInflater)activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
v = vi.inflate(R.layout.ac_name_list, null);
holder = new ViewHolder();
holder.tv_ac_name = (TextView) v.findViewById(R.id.ac_name);
holder.tv_ac_desg = (TextView) v.findViewById(R.id.ac_desg);
holder.tv_ac_org = (TextView) v.findViewById(R.id.ac_org);
holder.tv_ac_dept = (TextView) v.findViewById(R.id.ac_dept);
v.setTag(holder);
}
else
holder=(ViewHolder)v.getTag();
final Part_Mstr_Info custom = entries.get(position);
if (custom != null) {
holder.tv_ac_name.setText(custom.get_name());
holder.tv_ac_desg.setText(custom.get_desg());
holder.tv_ac_org.setText(custom.get_org());
holder.tv_ac_dept.setText(custom.get_dept());
}
return v;
}
@Override
public Filter getFilter() {
if (myFilter == null){
myFilter = new ArrayFilter();
}
return myFilter;
}
@Override
public String toString() {
String temp = getClass().getName();
return temp;
}
private class ArrayFilter extends Filter {
@Override
protected FilterResults performFiltering(CharSequence constraint) {
FilterResults results = new FilterResults();
if (orig == null)
orig = new ArrayList<Part_Mstr_Info>(entries);
if (constraint != null && constraint.length() != 0) {
ArrayList<Part_Mstr_Info> resultsSuggestions = new ArrayList<Part_Mstr_Info>();
for (int i = 0; i < orig.size(); i++) {
if(orig.get(i).get_name().toLowerCase().startsWith(constraint.toString().toLowerCase())){
resultsSuggestions.add(orig.get(i));
}
}
results.values = resultsSuggestions;
results.count = resultsSuggestions.size();
}
else {
ArrayList <Part_Mstr_Info> list = new ArrayList <Part_Mstr_Info>(orig);
results.values = list;
results.count = list.size();
}
return results;
}
@Override
@SuppressWarnings("unchecked")
protected void publishResults(CharSequence constraint, FilterResults results) {
clear();
ArrayList<Part_Mstr_Info> newValues = (ArrayList<Part_Mstr_Info>) results.values;
if(newValues !=null) {
for (int i = 0; i < newValues.size(); i++) {
add(newValues.get(i));
}
if(results.count>0) {
notifyDataSetChanged();
} else {
notifyDataSetInvalidated();
}
}
}
}
最佳答案
正确的方法是重写ArrayFilter私有(private)类中的Filter#convertResultToString(Object)方法。
如Android文档中所述
在您的情况下,应该是这样的:
private class ArrayFilter extends Filter {
@Override
public CharSequence convertResultToString(Object resultValue) {
return ((Part_Mstr_Info) resultValue).get_name();
}
添加此方法将使AutoCompleteTextView(在横向 View 中)提供更正提示,而不是对象引用或默认为toString
关于Android AutoCompleteTextView在横向模式下显示对象信息而不是文本,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/12682933/